Câu hỏi:

31/10/2020 340

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 from 30 to 37.
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?

A. The dangers of toxic chemicals.

B. A proposal to ban the use of all herbicides.

C. The importance of the chemical industry.

D. Advantages of biological agents over chemical ones.

Xem lời giải

Câu hỏi trong đề: Tổng hợp 30 Đề thi thử THPTQG 2021 môn Tiếng anh hay nhất có lời giải !!

Bắt đầu thi

Trả lời:

Giải bởi Vietjack

Đáp án D

Chủ đề nào đoạn văn này chủ yếu giải quyết?

A. Sự nguy hiểm của hóa chất độc hại.

B. Đề xuất cấm sử dụng tất cả các chất diệt cỏ.

C. Tầm quan trọng của ngành công nghiệp hoá chất.

D. Ưu điểm của tác nhân sinh học hơn những hóa chất.

Bình luận

Câu 1:

Her job was so _________ that she decided to quit it.

A. interesting

B. satisfactory

C. stressful

D. wonderfu

Xem đáp án » 31/10/2020 54,984

Câu 2:

All payments to the ICRC are _________ and are received as donations.

A. volunteer

B. voluntary

C. voluntarily

D. voluntariness

Xem đáp án » 31/10/2020 19,202

Câu 3:

We oppose this war, as we would do any other war which created an environmental catastrophe.

A. pollution

B. disaster

C. convention

D. epidemic

Xem đáp án » 31/10/2020 2,675

Câu 4:

In rainy seasons, roads in the village are always _________.

A. mud.

B. mudded.

C. mudding.

D. muddy.

Xem đáp án » 31/10/2020 2,056

Câu 5:

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.
When the unemployment rate is high, the crime rate is usually also high

A. The unemployment rate and the crime rate are both higher.

B. The unemployment rate is as high as the crime rate.

C. The higher the unemployment rate is, the higher the crime rate is.

D. The high rate of unemployment depends on the high rate of crime.

Xem đáp án » 31/10/2020 2,023

Câu 6:

Williams is working ___ an export company. He intends to apply _ another job because he is not satisfied _____ the salary.

A. in / on / at

B. for / for / with

C. at / out / into

D. from/ on/ for

Xem đáp án » 31/10/2020 1,989

Câu 7:

By the end of 2010 we_______ in Ho Chi Minh City for 30 years.

A. work

B. will work

C. have worked

D. will have worked

Xem đáp án » 31/10/2020 1,866

Bình luận

Her job was so _________ that she decided to quit it.

All payments to the ICRC are _________ and are received as donations.

We oppose this war, as we would do any other war which created an environmental catastrophe.

In rainy seasons, roads in the village are always _________.

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.
When the unemployment rate is high, the crime rate is usually also high

Williams is working ___ an export company. He intends to apply _ another job because he is not satisfied _____ the salary.

By the end of 2010 we_______ in Ho Chi Minh City for 30 years.

VIP +1 tháng ( 199,000 VNĐ )

VIP +3 tháng ( 299,000 VNĐ )

VIP +6 tháng ( 399,000 VNĐ )

VIP +12 tháng ( 499,000 VNĐ )

🔥 Đề thi HOT:

Bình luận

Her job was so _________ that she decided to quit it.

All payments to the ICRC are _________ and are received as donations.

We oppose this war, as we would do any other war which created an environmental catastrophe.

In rainy seasons, roads in the village are always _________.

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.When the unemployment rate is high, the crime rate is usually also high

Williams is working _______ an export company. He intends to apply _______ another job because he is not satisfied _______ the salary.

By the end of 2010 we_______ in Ho Chi Minh City for 30 years.

VIP +1 tháng ( 199,000 VNĐ )

VIP +3 tháng ( 299,000 VNĐ )

VIP +6 tháng ( 399,000 VNĐ )

VIP +12 tháng ( 499,000 VNĐ )

🔥 Đề thi HOT:

CHỌN BỘ SÁCH BẠN MUỐN XEM

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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.
When the unemployment rate is high, the crime rate is usually also high

Williams is working ___ an export company. He intends to apply _ another job because he is not satisfied _____ the salary.