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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:Going to the pub too often can easily become a bad __________

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 1.9 K lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected. The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health. On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree. What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about. As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.According to the passage, cell phones are especially popular with young people because ____________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 594 lượt xem 6 năm trước

Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer: _____________ so many people been out of work as today.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 11.7 K lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected. The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health. On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree. What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about. As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.The changes possibly caused by the cell phones are mainly concerned with ____________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 6.5 K lượt xem 6 năm trước

Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:_________ the way, what did you think about the movie you saw yesterday?

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 882 lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected. The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health. On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree. What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about. As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.According to the writer, people should ____________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 4.1 K lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected. The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health. On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree. What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about. As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.Doctors have tentatively concluded that cell phones may ____________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 499 lượt xem 6 năm trước

Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:If I had noticed him, I ___________ hello.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 1.8 K lượt xem 6 năm trước

Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Dãy các chất nào dưới đây đều phản ứng được với Cu(OH)2 ở điều kiện thường

Hóa học Lớp 12

Xem chi tiết 1.8 K lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected. The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health. On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree. What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about. As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.The man mentioned in the passage, who used his cell phone too often, ____________.

Tiếng Anh Tốt nghiệp THPT

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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:All traffic laws _______________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 50.9 K lượt xem 6 năm trước

Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Tripeptit mạch hở X và tetrapeptit mạch hở Y đều được tạo từ một amino axit no, mạch hở có 1 nhóm –COOH và 1 nhóm –NH2. Đốt cháy hoàn toàn 0,1 mol X thu sản phẩm gồm CO2, H2O, N2 trong đó tổng khối lượng CO2, H2O là 36,3 gam. Nếu đốt cháy hoàn toàn 0,2 mol Y cần số mol O2 là

Hóa học Lớp 12

Xem chi tiết 282 lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

You can usually tell when your friends are happy or angry by the looks on their faces or by their actions. This is useful because reading their emotional expressions helps you to know how to respond to them. Emotions have evolved to help us respond to important situations and to convey our intentions to others. But does raising the eyebrows and rounding the mouth say the same thing in Minneapolis as it does in Madagascar? Much research on emotional expressions has centered on such questions.According to Paul Ekman, the leading researcher in this area, people speak and understand substantially the same "facial language". Studies by Ekman's group have demonstrated that humans share a set of universal emotional expressions that testify to the common biological heritage of the human species. Smiles, for example, signal happiness and frowns indicate sadness on the faces of people in such far- flung places as Argentina, Japan, Spain, Hungary, Poland , Sumatra ,the United States, Vietnam, the jungles of New Guinea , and the Eskimo villages north of Artic Circle. Ekman and his colleagues claim that people everywhere can recognize at least seven basic emotions: sadness, fear, anger, disgust, contempt, happiness, and surprise. There are, however, huge differences across cultures in both the context and intensity of emotional displays - the so called display rules. In many Asian cultures, for example, children are taught to control emotional responses - especially negative ones- while many American children are encouraged to express their feelings more openly. Regardless of culture, however, emotions usually show themselves, to some degree , in people's behavior. From their first days of life, babies produce facial expressions that communicate their feelings. The ability to read facial expressions develops early, too. Very young children pay close attention to facial expressions, and by age five, they nearly equal adults in their skill at reading emotions on people's faces. This evidence all points to a biological underpinning for our abilities to express and interpret a basic set of human emotions. Moreover, as Charles Darwin pointed out over a century ago, some emotional expressions seem to appear across species boundaries. Cross - cultural psychologists tell us that certain emotional responses carry different meanings in different cultures. For example, what emotion do you suppose might be conveyed by sticking out your tongue? For Americans, this might indicate disgust, while in China it can signify surprise. Likewise, a grin on an American face may indicate joy, while on a Japanese face it may just as easily mean embarrassment. Clearly, culture influences emotional expressions.The best title for the passage is ________________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 5.6 K lượt xem 6 năm trước

20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 7)

Sự xuất hiện của sâu bọ bay trong kỉ Jura tạo điều kiện cho

Sinh học Tốt nghiệp THPT

Xem chi tiết 558 lượt xem 6 năm trước

Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:Since their appearance, books are a precious __________ of knowledge and pleasure.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 11.3 K lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

You can usually tell when your friends are happy or angry by the looks on their faces or by their actions. This is useful because reading their emotional expressions helps you to know how to respond to them. Emotions have evolved to help us respond to important situations and to convey our intentions to others. But does raising the eyebrows and rounding the mouth say the same thing in Minneapolis as it does in Madagascar? Much research on emotional expressions has centered on such questions.According to Paul Ekman, the leading researcher in this area, people speak and understand substantially the same "facial language". Studies by Ekman's group have demonstrated that humans share a set of universal emotional expressions that testify to the common biological heritage of the human species. Smiles, for example, signal happiness and frowns indicate sadness on the faces of people in such far- flung places as Argentina, Japan, Spain, Hungary, Poland , Sumatra ,the United States, Vietnam, the jungles of New Guinea , and the Eskimo villages north of Artic Circle. Ekman and his colleagues claim that people everywhere can recognize at least seven basic emotions: sadness, fear, anger, disgust, contempt, happiness, and surprise. There are, however, huge differences across cultures in both the context and intensity of emotional displays - the so called display rules. In many Asian cultures, for example, children are taught to control emotional responses - especially negative ones- while many American children are encouraged to express their feelings more openly. Regardless of culture, however, emotions usually show themselves, to some degree , in people's behavior. From their first days of life, babies produce facial expressions that communicate their feelings.The ability to read facial expressions develops early, too. Very young children pay close attention to facial expressions, and by age five, they nearly equal adults in their skill at reading emotions on people's faces. This evidence all points to a biological underpinning for our abilities to express and interpret a basic set of human emotions. Moreover, as Charles Darwin pointed out over a century ago, some emotional expressions seem to appear across species boundaries. Cross - cultural psychologists tell us that certain emotional responses carry different meanings in different cultures. For example, what emotion do you suppose might be conveyed by sticking out your tongue? For Americans, this might indicate disgust, while in China it can signify surprise. Likewise, a grin on an American face may indicate joy, while on a Japanese face it may just as easily mean embarrassment. Clearly, culture influences emotional expressions.Young children __________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 601 lượt xem 6 năm trước

20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 7)

Trong quần xã nhóm sinh vật cho sản lượng sinh vật cao nhất thuộc về

Sinh học Tốt nghiệp THPT

Xem chi tiết 1.7 K lượt xem 6 năm trước

Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer: Lots of houses __________ by the earthquake.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 2.6 K lượt xem 1 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

You can usually tell when your friends are happy or angry by the looks on their faces or by their actions. This is useful because reading their emotional expressions helps you to know how to respond to them. Emotions have evolved to help us respond to important situations and to convey our intentions to others. But does raising the eyebrows and rounding the mouth say the same thing in Minneapolis as it does in Madagascar? Much research on emotional expressions has centered on such questions.According to Paul Ekman, the leading researcher in this area, people speak and understand substantially the same "facial language". Studies by Ekman's group have demonstrated that humans share a set of universal emotional expressions that testify to the common biological heritage of the human species. Smiles, for example, signal happiness and frowns indicate sadness on the faces of people in such far- flung places as Argentina, Japan, Spain, Hungary, Poland , Sumatra ,the United States, Vietnam, the jungles of New Guinea , and the Eskimo villages north of Artic Circle. Ekman and his colleagues claim that people everywhere can recognize at least seven basic emotions: sadness, fear, anger, disgust, contempt, happiness, and surprise. There are, however, huge differences across cultures in both the context and intensity of emotional displays - the so called display rules. In many Asian cultures, for example, children are taught to control emotional responses - especially negative ones- while many American children are encouraged to express their feelings more openly. Regardless of culture, however, emotions usually show themselves, to some degree , in people's behavior. From their first days of life, babies produce facial expressions that communicate their feelings.The ability to read facial expressions develops early, too. Very young children pay close attention to facial expressions, and by age five, they nearly equal adults in their skill at reading emotions on people's faces. This evidence all points to a biological underpinning for our abilities to express and interpret a basic set of human emotions. Moreover, as Charles Darwin pointed out over a century ago, some emotional expressions seem to appear across species boundaries. Cross - cultural psychologists tell us that certain emotional responses carry different meanings in different cultures. For example, what emotion do you suppose might be conveyed by sticking out your tongue? For Americans, this might indicate disgust, while in China it can signify surprise. Likewise, a grin on an American face may indicate joy, while on a Japanese face it may just as easily mean embarrassment. Clearly, culture influences emotional expressions.According to the passage, we respond to others by _________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 471 lượt xem 6 năm trước

Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:They congratulated me __________ the exams with high marks.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 1.5 K lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

You can usually tell when your friends are happy or angry by the looks on their faces or by their actions. This is useful because reading their emotional expressions helps you to know how to respond to them. Emotions have evolved to help us respond to important situations and to convey our intentions to others. But does raising the eyebrows and rounding the mouth say the same thing in Minneapolis as it does in Madagascar? Much research on emotional expressions has centered on such questions.According to Paul Ekman, the leading researcher in this area, people speak and understand substantially the same "facial language". Studies by Ekman's group have demonstrated that humans share a set of universal emotional expressions that testify to the common biological heritage of the human species. Smiles, for example, signal happiness and frowns indicate sadness on the faces of people in such far- flung places as Argentina, Japan, Spain, Hungary, Poland , Sumatra ,the United States, Vietnam, the jungles of New Guinea , and the Eskimo villages north of Artic Circle. Ekman and his colleagues claim that people everywhere can recognize at least seven basic emotions: sadness, fear, anger, disgust, contempt, happiness, and surprise. There are, however, huge differences across cultures in both the context and intensity of emotional displays - the so called display rules. In many Asian cultures, for example, children are taught to control emotional responses - especially negative ones- while many American children are encouraged to express their feelings more openly. Regardless of culture, however, emotions usually show themselves, to some degree , in people's behavior. From their first days of life, babies produce facial expressions that communicate their feelings.The ability to read facial expressions develops early, too. Very young children pay close attention to facial expressions, and by age five, they nearly equal adults in their skill at reading emotions on people's faces. This evidence all points to a biological underpinning for our abilities to express and interpret a basic set of human emotions. Moreover, as Charles Darwin pointed out over a century ago, some emotional expressions seem to appear across species boundaries. Cross - cultural psychologists tell us that certain emotional responses carry different meanings in different cultures. For example, what emotion do you suppose might be conveyed by sticking out your tongue? For Americans, this might indicate disgust, while in China it can signify surprise. Likewise, a grin on an American face may indicate joy, while on a Japanese face it may just as easily mean embarrassment. Clearly, culture influences emotional expressions.The biggest difference lies in __________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 2.8 K lượt xem 6 năm trước

Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:While __________ to help Tom with his math, I got impatient because he wouldn‟t pay attention to what I was saying.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 17.9 K lượt xem 6 năm trước

20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 7)

Theo quan niệm hiện đại về chọn lọc tự nhiên, phát biểu nào sau đây không đúng?

Sinh học Tốt nghiệp THPT

Xem chi tiết 657 lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

You can usually tell when your friends are happy or angry by the looks on their faces or by their actions. This is useful because reading their emotional expressions helps you to know how to respond to them. Emotions have evolved to help us respond to important situations and to convey our intentions to others. But does raising the eyebrows and rounding the mouth say the same thing in Minneapolis as it does in Madagascar? Much research on emotional expressions has centered on such questions.According to Paul Ekman, the leading researcher in this area, people speak and understand substantially the same "facial language". Studies by Ekman's group have demonstrated that humans share a set of universal emotional expressions that testify to the common biological heritage of the human species. Smiles, for example, signal happiness and frowns indicate sadness on the faces of people in such far- flung places as Argentina, Japan, Spain, Hungary, Poland , Sumatra ,the United States, Vietnam, the jungles of New Guinea , and the Eskimo villages north of Artic Circle. Ekman and his colleagues claim that people everywhere can recognize at least seven basic emotions: sadness, fear, anger, disgust, contempt, happiness, and surprise. There are, however, huge differences across cultures in both the context and intensity of emotional displays - the so called display rules. In many Asian cultures, for example, children are taught to control emotional responses - especially negative ones- while many American children are encouraged to express their feelings more openly. Regardless of culture, however, emotions usually show themselves, to some degree , in people's behavior. From their first days of life, babies produce facial expressions that communicate their feelings.The ability to read facial expressions develops early, too. Very young children pay close attention to facial expressions, and by age five, they nearly equal adults in their skill at reading emotions on people's faces. This evidence all points to a biological underpinning for our abilities to express and interpret a basic set of human emotions. Moreover, as Charles Darwin pointed out over a century ago, some emotional expressions seem to appear across species boundaries. Cross - cultural psychologists tell us that certain emotional responses carry different meanings in different cultures. For example, what emotion do you suppose might be conveyed by sticking out your tongue? For Americans, this might indicate disgust, while in China it can signify surprise. Likewise, a grin on an American face may indicate joy, while on a Japanese face it may just as easily mean embarrassment. Clearly, culture influences emotional expressions.Unlike American children, Asian children are encouraged to _______.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 583 lượt xem 6 năm trước

50 bài toán hay và khó về hỗn hợp chứa peptit và este (P1)

X là peptit mạch hở (được tạo bởi Gly, Ala và Val), Y là chất béo rắn. Hỗn hợp E chứa X, Y với tỷ lệ mol tương ứng là 2:1. Đun nóng m gam E trong 110 ml dung dịch NaOH 1M vừa đủ thu được bốn muối Z và glixerol. Đốt cháy hoàn toàn E cần dùng vừa đủ 1,115 mol O2. Sản phẩm cháy thu được có chứa 0,04 mol N2. Giá trị của m là?

Hóa học Lớp 12

Xem chi tiết 1.9 K lượt xem 6 năm trước

Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:On the way home yesterday I happened__________ your sister.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 3.7 K lượt xem 6 năm trước

20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 7)

Ở cấp độ phân tử thông tin di truyền được truyền từ nhân ra tế bào chất nhờ quá trình nào?

Sinh học Tốt nghiệp THPT

Xem chi tiết 244 lượt xem 6 năm trước

Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:We stopped for a rest after we __________ for two hours

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 7.9 K lượt xem 6 năm trước

Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

You can usually tell when your friends are happy or angry by the looks on their faces or by their actions. This is useful because reading their emotional expressions helps you to know how to respond to them. Emotions have evolved to help us respond to important situations and to convey our intentions to others. But does raising the eyebrows and rounding the mouth say the same thing in Minneapolis as it does in Madagascar? Much research on emotional expressions has centered on such questions.According to Paul Ekman, the leading researcher in this area, people speak and understand substantially the same "facial language". Studies by Ekman's group have demonstrated that humans share a set of universal emotional expressions that testify to the common biological heritage of the human species. Smiles, for example, signal happiness and frowns indicate sadness on the faces of people in such far- flung places as Argentina, Japan, Spain, Hungary, Poland , Sumatra ,the United States, Vietnam, the jungles of New Guinea , and the Eskimo villages north of Artic Circle. Ekman and his colleagues claim that people everywhere can recognize at least seven basic emotions: sadness, fear, anger, disgust, contempt, happiness, and surprise. There are, however, huge differences across cultures in both the context and intensity of emotional displays - the so called display rules. In many Asian cultures, for example, children are taught to control emotional responses - especially negative ones- while many American children are encouraged to express their feelings more openly. Regardless of culture, however, emotions usually show themselves, to some degree , in people's behavior. From their first days of life, babies produce facial expressions that communicate their feelings. The ability to read facial expressions develops early, too. Very young children pay close attention to facial expressions, and by age five, they nearly equal adults in their skill at reading emotions on people's faces. This evidence all points to a biological underpinning for our abilities to express and interpret a basic set of human emotions. Moreover, as Charles Darwin pointed out over a century ago, some emotional expressions seem to appear across species boundaries. Cross - cultural psychologists tell us that certain emotional responses carry different meanings in different cultures. For example, what emotion do you suppose might be conveyed by sticking out your tongue? For Americans, this might indicate disgust, while in China it can signify surprise. Likewise, a grin on an American face may indicate joy, while on a Japanese face it may just as easily mean embarrassment. Clearly, culture influences emotional expressions.Many studies on emotional expressions try to answer the question whether _________.

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Ở một loài thực vật alen A quy định quả đỏ trội hoàn toàn so với alen a quy định quả vàng. Đem hai cây quả đỏ và quả vàng thuần chủng giao phấn với nhau thu được F1 toàn quả đỏ. Cho F1 tự thụ phấn thu được F2. Tiếp tục cho F2 tự thụ phấn thu được F3. Kết luận nào sau đây là chính xác?

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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.You can usually tell when your friends are happy or angry by the looks on their faces or by their actions. This is useful because reading their emotional expressions helps you to know how to respond to them. Emotions have evolved to help us respond to important situations and to convey our intentions to others. But does raising the eyebrows and rounding the mouth say the same thing in Minneapolis as it does in Madagascar? Much research on emotional expressions has centered on such questions. According to Paul Ekman, the leading researcher in this area, people speak and understand substantially the same "facial language". Studies by Ekman's group have demonstrated that humans share a set of universal emotional expressions that testify to the common biological heritage of the human species. Smiles, for example, signal happiness and frowns indicate sadness on the faces of people in such far- flung places as Argentina, Japan, Spain, Hungary, Poland , Sumatra ,the United States, Vietnam, the jungles of New Guinea , and the Eskimo villages north of Artic Circle. Ekman and his colleagues claim that people everywhere can recognize at least seven basic emotions: sadness, fear, anger, disgust, contempt, happiness, and surprise. There are, however, huge differences across cultures in both the context and intensity of emotional displays - the so called display rules. In many Asian cultures, for example, children are taught to control emotional responses - especially negative ones- while many American children are encouraged to express their feelings more openly. Regardless of culture, however, emotions usually show themselves, to some degree , in people's behavior. From their first days of life, babies produce facial expressions that communicate their feelings. The ability to read facial expressions develops early, too. Very young children pay close attention to facial expressions, and by age five, they nearly equal adults in their skill at reading emotions on people's faces. This evidence all points to a biological underpinning for our abilities to express and interpret a basic set of human emotions. Moreover, as Charles Darwin pointed out over a century ago, some emotional expressions seem to appear across species boundaries. Cross - cultural psychologists tell us that certain emotional responses carry different meanings in different cultures. For example, what emotion do you suppose might be conveyed by sticking out your tongue? For Americans, this might indicate disgust, while in China it can signify surprise. Likewise, a grin on an American face may indicate joy, while on a Japanese face it may just as easily mean embarrassment. Clearly, culture influences emotional expressions.The word " evolved" is closest in meaning to _________.

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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:Up to the present, George __________ good work in his class.

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50 bài toán hay và khó về hỗn hợp chứa peptit và este (P1)

X là peptit mạch hở được tạo bởi Gly, Ala và Val. Y là este (no, đơn chức, mạch hở). Hỗn hợp E chứa X, Y với tỷ lệ mol tương ứng là 1:2. Đun nóng m gam E trong 100 ml dung dịch NaOH 1M vừa đủ thu được bốn muối Z và ancol etylic. Đốt cháy hoàn toàn E cần dùng vừa đủ 0,515 mol O2. Sản phẩm cháy thu được có chứa 0,03 mol N2. Giá trị của m là?

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Ở dê, tính trạng râu xồm do 1 gen gồm 2 alen quy định nằm trên NST thường. Nếu cho dê đực thuần chủng (AA) có râu xồm giao phối với dê cái thuần chủng (aa) không có râu xồm thì F1 thu được 1 đực râu xồm : 1 cái không râu xồm. Cho F1 giao phối với nhau thu được ở F2 có tỉ lệ phân li 1 râu xồm : 1 không râu xồm. Nếu chỉ chọn những con đực râu xồm ở F2 cho tạp giao với các con cái không râu xồm ở F2 thì tỉ lệ dê cái không râu xồm ở đời lai thu được là bao nhiêu?

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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 9)

Choose the best answer:It is interesting to take __________ a new hobby such as collecting stamps or going fishing.

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50 bài toán hay và khó về hỗn hợp chứa peptit và este (P1)

X là peptit mạch hở được tạo bởi Gly, Ala và Val. Y là este (no, đơn chức, mạch hở). Hỗn hợp E chứa X, Y với tỷ lệ mol tương ứng là 1:2. Đun nóng E trong 100 ml dung dịch NaOH 1M vừa đủ thu được bốn muối Z và ancol etylic. Đốt cháy hoàn toàn E cần dùng vừa đủ 0,515 mol O2. Sản phẩm cháy thu được có chứa 0,03 mol N2. Tổng khối lượng (gam) các muối trong Z là?

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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 7)

Hệ sinh thái tự nhiên có cấu trúc ổn định và hoàn chỉnh vì:

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Cho 27,2 gam hỗn hợp X gồm 2 este đơn chức, mạch hở tác dụng vừa đủ với dung dịch NaOH, thu được một muối duy nhất và 11 gam hỗn hợp hai ancol đồng đẳng kế tiếp. Mặt khác, đốt cháy hoàn toàn 13,6 gam X cần 16,8 lít O2 (đktc) và thu được 14,56 lít CO2 (đktc). Tên gọi của hai este là

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Cho các bước tạo động vật chuyển gen:(l) Lấy trứng ra khỏi con vật.(2) Cấy phôi đã được chuyển gen vào tử cung con vật khác để nó mang thai và sinh đẻ bình thường.(3) Cho trứng thụ tinh trong ống nghiệm.(4) Tiêm gen cần chuyển vào hợp tử và hợp tử phát triển thành phôi.Trình tự đúng trong quy trình tạo động vật chuyển gen là

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Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.The occean probably distinguishes the earth from other planets of the solar system, for scientists believe that large bodies of water are not existing on the other planets.

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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.For its establishment, ASEAN Tourism Association has played an important role in promoting and developing ASEAN Tourism services.

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Trong một quần thể giao phối ngẫu nhiên có kích thước lớn trên một hòn đảo đại dương, không có chọn lọc, không có đột biến, tần số tương đối của các alen thuộc một gen nào đó:

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Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.I don't find it difficult to get up early in the morning.

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50 bài toán hay và khó về hỗn hợp chứa peptit và este (P1)

X là peptit mạch hở được tạo bởi Gly, Ala và Val. Y là este (no, đơn chức, mạch hở). Hỗn hợp E chứa X, Y với tỷ lệ mol tương ứng là 1:2. Đun nóng E trong 100 ml dung dịch NaOH vừa đủ thu được bốn muối và ancol etylic. Đốt cháy hoàn toàn E cần dùng vừa đủ 0,515 mol O2. Sản phẩm cháy thu được có chứa a mol CO2, b mol H2O và 0,03 mol N2. Giá trị của b là?

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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.All of the following fields of professional interest and activity are used to describe de Tocqueville EXCEPT

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Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.We couldn't solve the problem until our teacher arrived.

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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.What in the passage is mentioned as being truly remarkable?

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Lớp 12

Lớp 11

Lớp 10

Ôn vào 10

Lớp 9

Lớp 8

Lớp 7

Lớp 6

Ôn vào 6

Lớp 5

Lớp 4

Lớp 3

Lớp 2

Lớp 1

Đại học

ĐGNL - ĐGTD

Tốt nghiệp THPT

Ôn vào 10

Ôn vào 6

Toán

Văn

Tiếng Anh

Hóa học

Sinh học

Lịch sử

Địa lý

Giáo dục Kinh tế và Pháp luật

Toán

Toán

Toán

Toán

Văn

Tiếng Anh

Toán

Toán

Toán

Toán

Danh sách câu hỏi ( Có 2,432,566 câu hỏi trên 48,652 trang )

Choose the best answer:Going to the pub too often can easily become a bad __________

Choose the best answer: _____________ so many people been out of work as today.

Choose the best answer:_________ the way, what did you think about the movie you saw yesterday?

Choose the best answer:If I had noticed him, I ___________ hello.

Dãy các chất nào dưới đây đều phản ứng được với Cu(OH)2 ở điều kiện thường

Choose the best answer:All traffic laws _______________.

Sự xuất hiện của sâu bọ bay trong kỉ Jura tạo điều kiện cho

Choose the best answer:Since their appearance, books are a precious __________ of knowledge and pleasure.

Trong quần xã nhóm sinh vật cho sản lượng sinh vật cao nhất thuộc về

Choose the best answer: Lots of houses __________ by the earthquake.

Choose the best answer:They congratulated me __________ the exams with high marks.

Choose the best answer:While __________ to help Tom with his math, I got impatient because he wouldn‟t pay attention to what I was saying.

Theo quan niệm hiện đại về chọn lọc tự nhiên, phát biểu nào sau đây không đúng?

Choose the best answer:On the way home yesterday I happened__________ your sister.

Ở cấp độ phân tử thông tin di truyền được truyền từ nhân ra tế bào chất nhờ quá trình nào?

Choose the best answer:We stopped for a rest after we __________ for two hours

Choose the best answer:Up to the present, George __________ good work in his class.

Choose the best answer:It is interesting to take __________ a new hobby such as collecting stamps or going fishing.

Hệ sinh thái tự nhiên có cấu trúc ổn định và hoàn chỉnh vì:

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.For its establishment, ASEAN Tourism Association has played an important role in promoting and developing ASEAN Tourism services.

Trong một quần thể giao phối ngẫu nhiên có kích thước lớn trên một hòn đảo đại dương, không có chọn lọc, không có đột biến, tần số tương đối của các alen thuộc một gen nào đó:

Nếu kích thước quần thể xuống dưới mức tối thiểu, quần thể dễ rơi vào trạng thái suy giảm dẫn tới diệt vong. Giải thích nào sau đây là không phù hợp?

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.Fifty minutes are the maximum length of time allotted for the exam.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.I thought she was the right person for the position, yet it turned put that she was quite useless.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.I don't find it difficult to get up early in the morning.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.We couldn't solve the problem until our teacher arrived.

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