Câu hỏi:
15/11/2023 540
Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.
The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.
In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.
The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.
With what topic does this passage primarily deal?
Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.
The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.
In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.
The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.
With what topic does this passage primarily deal?
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Trả lời:
Giải bởi Vietjack
Đáp án D
Bài đọc chủ yếu thảo luận về chủ đề gì?
A.tầm quan trọng của ngành công nghiệp hóa chất
B.mối nguy hiểm của những hóa chất độc hại
C.sự đề xuất cấm sử dụng thuốc diệt cỏ
D. những lợi thế của hóa chất sinh học so với chất hóa học
Câu hỏi cùng đoạn
Câu 2:
The word "Marring" in paragraph 1 is closest in meaning to________
The word "Marring" in paragraph 1 is closest in meaning to________
Đáp án chính xác
Lời giải của GV VietJack
Đáp án A
từ “marrying” ở đoạn 1 gần nghĩa nhất với
spoiling: phá hủy
planting: trồng trọt
dividing: phân chia
replacing: thay thế
Dẫn chứng: Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted.
Câu 3:
Which of the following terms does the author define in the first paragraph?
Which of the following terms does the author define in the first paragraph?
Đáp án chính xác
Lời giải của GV VietJack
Đáp án A
Thuật ngữ nào dưới đây mà tác giả định nghĩa ở đoạn văn 1?
Weeds: cỏ
Nutrients: chất dinh dưỡng
Wildlife habitats: môi trường sống của động vật hoang dã
Grazing area: khu vực để gặm cỏ ( cho bò/ trâu ăn)
Dẫn chứng: Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted.
Câu 4:
Which of the following statements about the use of chemical agents as herbicides would the author most likely agree?
Which of the following statements about the use of chemical agents as herbicides would the author most likely agree?
Đáp án chính xác
Lời giải của GV VietJack
Đáp án B
Câu nào sau đây về việc sử dụng những hóa chất như là chất diệt cỏ tác giải có vẻ như đồng ý nhất?
A.an toàn nhưng không hiệu quả
B.thỉnh thoảng cần phải dùng
C. Nó nên được tăng lên/ dùng nhiều hơn
D. gần đây nó trở nên nguy hiểm hơn
Dẫn chứng: The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.
Câu 5:
Which of the following is NOT given as an advantage of using biological agents over chemical herbicides?
Which of the following is NOT given as an advantage of using biological agents over chemical herbicides?
Đáp án chính xác
Lời giải của GV VietJack
Đáp án C
Câu nào sau đây không được nêu lên như một lợi ích của việc sử dụng chất sinh học so với thuốc diệt cỏ hóa học?
A.Chúng an toàn hơn cho công nhân.
B. Chúng ít phá hoại những cây được trồng.
C. Chúng không dễ dàng có sẵn.
D. Chúng không cần phải được sử dụng thường xuyên.
Dẫn chứng: The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.
Câu 6:
The word "innate" in paragraph 3 is closest in meaning to________
The word "innate" in paragraph 3 is closest in meaning to________
Đáp án chính xác
Lời giải của GV VietJack
Đáp án C
Từ “ innate” ở đoạn 3 gần nghĩa nhất với
Effective: hiệu quả
Organic: hữu cơ
Natural: thuộc về thiên nhiên, tự nhiên
Active: năng động
Dẫn chứng: Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.
Câu 7:
According to the passage, biological agents mainly consist of________
According to the passage, biological agents mainly consist of________
Đáp án chính xác
Lời giải của GV VietJack
Đáp án D
Theo bài đọc, những chất sinh học chủ yếu bao gồm
A.chất diệt cỏ
B. những thực vật có ích
C. cỏ
D. côn trùng và vi sinh vật
Dẫn chứng: Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.
Câu 8:
Which of the following best describes the organization of the passage?
Which of the following best describes the organization of the passage?
Đáp án chính xác
Lời giải của GV VietJack
Đáp án A
Câu nào sau đây mô tả đúng nhất về cấu trúc của bài đọc?
A.Một ý chung được đưa ra và những ví dụ cụ thể được nêu lên sau đó.
B. Hai nguyên nhân có thể của hiện tượng được so sánh.
C. Một vấn đề được mô tả và những giải pháp được thảo luận.
D. Một lời đề nghị được phân tích và bác bỏ.
Nhà sách VIETJACK:
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Which of the following titles would best express the main topic of the passage?
Which of the following titles would best express the main topic of the passage?
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793
Câu 2:
While most American families are traditional, (81) ________a father, a mother and one or more children, 22 percent of all American families in 1998 were headed by one parent, usually a woman.
Xem đáp án »
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