Câu hỏi:

02/04/2020 291

Read the passage and choose the best answer for each question below.
It is estimated that over 99 percent of all species that ever existed have become extinct. What causes extinction? When a species is no longer adapted to a changed environment, it may perish. The exact causes of a species’ death vary from situation to situation. Rapid ecological change may render an environment hostile to a species. For example, temperatures may change and a species may not be able to adapt. Food Resources may be affected by environmental changes, which will then cause problems. For a species requiring these resources. Other species may become better adapted to an Environment, resulting in competition and, ultimately, in the death of a species.
The fossil record reveals that extinction has occurred throughout the history of Earth. Recent analyses have also revealed that on some occasions many species became extinct at the same time – a mass extinction. One of the best-known examples of mass extinction occurred 65 million years ago with the demise of dinosaurs and many other forms of life.
Perhaps the largest mass extinction was the one that occurred 225 million years ago, When approximately 95 percent of all species died, Mass extinctions can be caused by a relatively rapid change in the environment and can be worsened by the close interrelationship of many species. If, for example, something were to happen to destroy much of the plankton in the oceans, then the oxygen content of Earth would drop, affection even organisms not living in the oceans. Such a change would probably lead to a mass extinction.
One interesting, and controversial, finding is that extinctions during the past 250 Million years have tended to be more intense every 26 million years. This periodic extinction might be due to intersection of the Earth’s orbit with a cloud of comets, but this theory is purely speculative. Some researchers have also speculated tat extinction may often be random. That is, certain species may be eliminated and others may survive for no particular reason. A species’ survival may have nothing to do with its ability or inability to adapt. If so, some of evolutionary history may reflect a sequence of essentially random events.
In paragraph 3, the author makes which of the following statements about a species’ survival?

A. It reflects the interrelationship of may species.

B. It may depend on chance events.

C. It does not vary greatly from species to species

D. It is associated with astronomical conditions.

Xem lời giải

Câu hỏi trong đề: Kỳ thi thử thpt quốc gia lần 1 năm 2019 môn Tiếng Anh cực hay có lời giải !!

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Trả lời:

Giải bởi Vietjack

Chọn B

THông tin ở đoạn 3: “Mass extinctions can be caused by a relatively rapid change in the environment and can be worsened by the close interrelationship of many species.”

Bình luận

Câu 1:

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
Jim was upset (A) last night because (B) he had to do (C) too many homeworks. (D)

A. upset

B. because

C. had to do

D. many homeworks

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Câu 2:

Choose the answer among A,B,C,D to complete each of the sentences below:
We put his rude manner___________ignorance of the local customs .

A. down to

B. up with

C. up to

D. off at

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Câu 3:

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
In 1975, according to (A) the National Center for Health Statistics, the average life expectancy for people born (B) during (C) that year is (D) 72.4 years.

A. according to

B. born

C. during

D. is

Xem đáp án » 02/04/2020 10,772

Câu 4:

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
This table is not sturdy enough (A) to support (B) a television, and that one (C) probably isn't neither. (D)

A. not sturdy enough

B. to support

C. that one

D. neither

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Câu 5:

Choose the answer among A,B,C,D to complete each of the sentences below:
His change of job has___________ him with a new challenge in life.

A. presented

B. introduced

C. initiated

D. led

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Câu 6:

Choose the answer among A,B,C,D to complete each of the sentences below:

The job was done____________, and we were extremely displeased.

A. incompetence

B. incompetent

C. competently

D. incompetently

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Câu 7:

Choose the answer among A,B,C,D to complete each of the sentences below:
In order to grow vegetables productively, gardeners must know______________.

A. that the requirements for each vegetable

B. what the requirements for each vegetable are

C. what are each vegetables’ requirements

D. that is required by each vegetable

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Bình luận

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
Jim was upset (A) last night because (B) he had to do (C) too many homeworks. (D)

Choose the answer among A,B,C,D to complete each of the sentences below:
We put his rude manner___________ignorance of the local customs .

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
In 1975, according to (A) the National Center for Health Statistics, the average life expectancy for people born (B) during (C) that year is (D) 72.4 years.

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
This table is not sturdy enough (A) to support (B) a television, and that one (C) probably isn't neither. (D)

Choose the answer among A,B,C,D to complete each of the sentences below:
His change of job has___________ him with a new challenge in life.

Choose the answer among A,B,C,D to complete each of the sentences below:

The job was done____________, and we were extremely displeased.

Choose the answer among A,B,C,D to complete each of the sentences below:
In order to grow vegetables productively, gardeners must know______________.

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Bình luận

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:Jim was upset (A) last night because (B) he had to do (C) too many homeworks. (D)

Choose the answer among A,B,C,D to complete each of the sentences below:We put his rude manner___________ignorance of the local customs .

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:In 1975, according to (A) the National Center for Health Statistics, the average life expectancy for people born (B) during (C) that year is (D) 72.4 years.

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:This table is not sturdy enough (A) to support (B) a television, and that one (C) probably isn't neither. (D)

Choose the answer among A,B,C,D to complete each of the sentences below:His change of job has___________ him with a new challenge in life.

Choose the answer among A,B,C,D to complete each of the sentences below: The job was done____________, and we were extremely displeased.

Choose the answer among A,B,C,D to complete each of the sentences below:In order to grow vegetables productively, gardeners must know______________.

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Quên mật khẩu

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
Jim was upset (A) last night because (B) he had to do (C) too many homeworks. (D)

Choose the answer among A,B,C,D to complete each of the sentences below:
We put his rude manner___________ignorance of the local customs .

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
In 1975, according to (A) the National Center for Health Statistics, the average life expectancy for people born (B) during (C) that year is (D) 72.4 years.

Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:
This table is not sturdy enough (A) to support (B) a television, and that one (C) probably isn't neither. (D)

Choose the answer among A,B,C,D to complete each of the sentences below:
His change of job has___________ him with a new challenge in life.

Choose the answer among A,B,C,D to complete each of the sentences below:

The job was done____________, and we were extremely displeased.

Choose the answer among A,B,C,D to complete each of the sentences below:
In order to grow vegetables productively, gardeners must know______________.