Câu hỏi:
14/03/2020 377Read the following passage and mark the letter A, B, tr or I) to indicate the correct answer to each of the questions from 36 to 42.
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 fanning. 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.
Question 37: The word "marring" in bold is closest in meaning to ________.
Đáp án chính xác
Câu hỏi trong đề:
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải !!
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Trả lời:
Giải bởi Vietjack
Đáp án A
Dịch nghĩa: Từ “marring” - làm hư hại in đậm gần nghĩa nhất với ___________.
A. làm tổn hại B. trồng C. phân chia D. thay thế
Nhà sách VIETJACK:
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.
Question 19: We all seem to have a different opinion, so let's let Joey decide, ________?
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Câu 2:
Mark the letter A, B, C or D to indicate the word/phrases SIMILAR in meaning to the underlined word(s) in each of the following questions.
Question 22: Species that have already lost habitat because of deforestation are given higher priority in the plan because of their greater risk of extinction.
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12,071
Câu 3:
Mark the letter A, B, C or D to indicate the most suitable response to complete each of the following exchanges.
Question 20: Peter: Is it important? - Thomas: _______.
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10,442
Câu 4:
Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.
Question 11: Blues is a form of music that came from the American South, where slaves on plantations _______ spiritual songs and word music.
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8,419
Câu 5:
Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.
Question 15: I'm _______ you liked the film. I thought it was rather _________.
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7,614
Câu 6:
Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.
Question 7: Parents can help to solve their children's learned problems by volunteering in the classroom.
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14/03/2020
7,339
Câu 7:
Mark the letter A, B, C or D to indicate the sentence that is closest in meaning to each of the following questions.
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