IMG-LOGO

Câu hỏi:

27/08/2021 119

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.

Which of the following terms does the author define in the first paragraph?

A. grazing area

B. weeds

Đáp án chính xác

C. nutrients

D. wildlife habitats

Trả lời:

verified Giải bởi qa.haylamdo.com

Đáp án B

 Thuật ngữ nào sau đây được định nghĩa trong đoạn đầu tiên?

 A. khu chăn thả                                             B. cỏ dại

C. chất dinh dưỡng                                         D. môi trường sống động vật hoang dã

Thông tin: weeds – any plants that thrive where they are unwanted. (cỏ dại - bất kỳ loài cây nào phát triển nơi chúng không cần thiết.)

Câu trả lời này có hữu ích không?

0

CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

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

Xem đáp án » 27/08/2021 646

Câu 2:

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

Xem đáp án » 27/08/2021 468

Câu 3:

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

Xem đáp án » 27/08/2021 425

Câu 4:

Mark the letter A, B, C or B on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

He (A) comes from a (B) large family, all of (C) them now (D) live in Australia.

Xem đáp án » 27/08/2021 271

Câu 5:

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 25 to 29.

  A trend that has emerged recently is the sharing of childcare (25) __________ between husband and wife. Young couples will try to arrange their work schedules so that they work opposite hours or shifts in order that one parent is always home with the children. Since childcare is expensive, this saves money for the young couple trying to establish themselves and provide a secure environment for the family. Husband and wife may also share household chores. Some fathers are just as capable as mothers at cooking dinner, changing and bathing the baby, and doing the laundry.

    In some cases, the woman’s salary is for family (26) __________ and the father becomes the “househusband." These cases are still fairly rare. One positive trend, however, is that fathers seem to be spending more time with their children. In a recent survey, 41% of the children sampled said they spend equal time with their mothers and fathers. “This is one of our most significant cultural changes,” says Dr. Leon Hoffman, who co-directs the Parent Child Center at the New York Psychoanalytic Society. In practice, for over 30 years, Hoffman has found "a very dramatic difference in the involvement of the father in everything from care-taking to general decision (27) __________ around kids' lives.”

          Another factor has recently been added to the childcare formula. The number of people who work from home nearly full-time rose 23% from the last decade. The (28) _________ of technology - computers, faxes, teleconferencing - has made it easier for at-home workers to be constantly in touch. Will this new flexibility in the workforce bring a positive change for the (29) __________ of children? Only time will tell.

Điền vào ô 25.

Xem đáp án » 27/08/2021 267

Câu 6:

Mark the letter A, B, C or B on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

We (A) are going to visit (B) our grandparents (C) when we (D) will finish our final exams

Xem đáp án » 27/08/2021 241

Câu 7:

Mr. Thompson is learning Vietnamese _________ to read Kim Van Kieu.

Xem đáp án » 27/08/2021 228

Câu 8:

Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

“Congratulations to you on passing the math exam.” “ _________

Xem đáp án » 27/08/2021 216

Câu 9:

Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation In each of the following questions.

Xem đáp án » 27/08/2021 201

Câu 10:

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSET in meaning to the underlined word(s) in each of the following questions.

My mom is always bad-tempered when I leave my room untidy.

Xem đáp án » 27/08/2021 197

Câu 11:

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 25 to 29.

  A trend that has emerged recently is the sharing of childcare (25) __________ between husband and wife. Young couples will try to arrange their work schedules so that they work opposite hours or shifts in order that one parent is always home with the children. Since childcare is expensive, this saves money for the young couple trying to establish themselves and provide a secure environment for the family. Husband and wife may also share household chores. Some fathers are just as capable as mothers at cooking dinner, changing and bathing the baby, and doing the laundry.

    In some cases, the woman’s salary is for family (26) __________ and the father becomes the “househusband." These cases are still fairly rare. One positive trend, however, is that fathers seem to be spending more time with their children. In a recent survey, 41% of the children sampled said they spend equal time with their mothers and fathers. “This is one of our most significant cultural changes,” says Dr. Leon Hoffman, who co-directs the Parent Child Center at the New York Psychoanalytic Society. In practice, for over 30 years, Hoffman has found "a very dramatic difference in the involvement of the father in everything from care-taking to general decision (27) __________ around kids' lives.”

          Another factor has recently been added to the childcare formula. The number of people who work from home nearly full-time rose 23% from the last decade. The (28) _________ of technology - computers, faxes, teleconferencing - has made it easier for at-home workers to be constantly in touch. Will this new flexibility in the workforce bring a positive change for the (29) __________ of children? Only time will tell.

Điền vào ô 26.

Xem đáp án » 27/08/2021 197

Câu 12:

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

Xem đáp án » 27/08/2021 187

Câu 13:

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 25 to 29.

  A trend that has emerged recently is the sharing of childcare (25) __________ between husband and wife. Young couples will try to arrange their work schedules so that they work opposite hours or shifts in order that one parent is always home with the children. Since childcare is expensive, this saves money for the young couple trying to establish themselves and provide a secure environment for the family. Husband and wife may also share household chores. Some fathers are just as capable as mothers at cooking dinner, changing and bathing the baby, and doing the laundry.

    In some cases, the woman’s salary is for family (26) __________ and the father becomes the “househusband." These cases are still fairly rare. One positive trend, however, is that fathers seem to be spending more time with their children. In a recent survey, 41% of the children sampled said they spend equal time with their mothers and fathers. “This is one of our most significant cultural changes,” says Dr. Leon Hoffman, who co-directs the Parent Child Center at the New York Psychoanalytic Society. In practice, for over 30 years, Hoffman has found "a very dramatic difference in the involvement of the father in everything from care-taking to general decision (27) __________ around kids' lives.”

          Another factor has recently been added to the childcare formula. The number of people who work from home nearly full-time rose 23% from the last decade. The (28) _________ of technology - computers, faxes, teleconferencing - has made it easier for at-home workers to be constantly in touch. Will this new flexibility in the workforce bring a positive change for the (29) __________ of children? Only time will tell.

Điền vào ô 27.

Xem đáp án » 27/08/2021 187

Câu 14:

The Red Cross is an international organization that helps people who are suffering from the results of war, diseases or _______.

Xem đáp án » 27/08/2021 182

Câu 15:

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 had planned to walk right round the lake, but the heavy rain made this impossible.

Xem đáp án » 27/08/2021 181

Câu hỏi mới nhất

Xem thêm »
Xem thêm »