Câu hỏi:
03/09/2021 494Read 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 from 36 to 42
In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.
A useful theory, in addition to explaining past observations, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.
Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."
Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hypothesis is a leap into the unknown. It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories
According to the second paragraph, a useful theory is one that helps scientists to ______
Sách mới 2k7: 30 đề đánh giá năng lực DHQG Hà Nội, Tp. Hồ Chí Minh, BKHN 2025 mới nhất (600 trang - chỉ từ 140k).
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Trả lời:
Đáp án D
Kiến thức: Đọc hiểu – chi tiết
Giải thích:
Theo đoạn thứ 2, một lý thuyết hữu ích là một lý thuyết giúp các nhà khoa học ______
A. tìm lỗi trong các thí nghiệm trong quá khứ.
B. công bố những phát hiện mới.
C. quan sát các sự kiện.
D. đưa ra dự đoán.
Thông tin: A useful theory, in addition to explaining past observations, helps to predict events that have not as yet been observed.
Tạm dịch: Một lý thuyết hữu ích, ngoài việc giải thích những quan sát trong quá khứ thì còn giúp dự đoán những sự kiện chưa được quan sát
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Unluckily, David's dangerous and incredible journey in search of the Blue Fairy is in_______.
Câu 2:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Something funny in class yesterday
Câu 3:
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions
The captain ordered the soldiers to gather on the double even though they were sleeping
Câu 4:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
My mother often complains, “You’re so messy. I always have to _______ after you.”
Câu 5:
Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions
You shouldn't have allowed them to watch too much TV
Câu 6:
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30
The United States of America, due to its immense size and diverse heritage, has one of the most complex cultural identities in the world. Millions of immigrants from all over the globe have journeyed to America (26) ______ the Europeans discovered and colonised the land back in the 17th and 18th centuries. The blending of cultural (27) ______ and ethnicities in America led to the country becoming known as a “melting pot.” As the third largest country in both area and population, America’s size has enabled the formation of subcultures within the country. These subcultures are often geographical as a result of settlement (28) ______ by non-natives as well as regional weather and landscape differences. While there are countless ways to divide the U.S. into regions, here we have referenced the four regions that are West, Midwest, North East and South. People from (29) ______ region may have different lifestyles, cultural values, business practices and dialects. While there are qualities and values (30) ______ most Americans commonly share, it is important not to generalise or assume that all Americans think or act the same way.
(Adapted from https://www.londonschool.com/)
Điền vào ô 26
Câu 7:
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30
The United States of America, due to its immense size and diverse heritage, has one of the most complex cultural identities in the world. Millions of immigrants from all over the globe have journeyed to America (26) ______ the Europeans discovered and colonised the land back in the 17th and 18th centuries. The blending of cultural (27) ______ and ethnicities in America led to the country becoming known as a “melting pot.” As the third largest country in both area and population, America’s size has enabled the formation of subcultures within the country. These subcultures are often geographical as a result of settlement (28) ______ by non-natives as well as regional weather and landscape differences. While there are countless ways to divide the U.S. into regions, here we have referenced the four regions that are West, Midwest, North East and South. People from (29) ______ region may have different lifestyles, cultural values, business practices and dialects. While there are qualities and values (30) ______ most Americans commonly share, it is important not to generalise or assume that all Americans think or act the same way.
(Adapted from https://www.londonschool.com/)
Điền vào ô 27
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