Everyone knows that death means returning to dust, but death will not be nothing if from that deathe another life is reviedAI LÀ NGƯỜI DỊCH CÓ TÂM VÀ HAY NHẤT MK SẼ TICK CHO 3 TICK !!! ko nhận nội qu...

LT

Linh Thiên

17 tháng 2 2019 - olm

Everyone knows that death means returning to dust, but death will not be nothing if from that deathe another life is revied

AI LÀ NGƯỜI DỊCH CÓ TÂM VÀ HAY NHẤT MK SẼ TICK CHO 3 TICK !!! ko nhận nội quy, nhận gạch đá đem về xây nhà

#Tiếng anh lớp 7

7

NV

Nguyễn Văn Quyền

17 tháng 2 2019

Mọi người đều biết rằng cái chết có nghĩa là trở về với cát bụi, nhưng cái chết sẽ không là gì nếu từ cái chết đó, một cuộc sống khác được hồi sinh

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CT

Chu Tiến Chiến

17 tháng 2 2019

mọi người đều biết rằng cái chết có nghĩa là trở về với cát bụi nhưng cái chết sẽ không là gì nếu từ cái chết đó một cuộc sống khác bị hủy bỏ

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PG

Phạm G Hân

23 tháng 9 2021

CLOSEST SENTENCE:33.People believe that there is another world after Death. A.That there is another world after Death is believed by people. B.It was believed that there is another worls after Death. C.It is believed that there is another world after Death. D.There is believed to have another world after Death.34.She is learning English because she wants to get a better job. A.She is learning English so that she gets a better job. B.She is learning English so as she gets a better job. ...

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CLOSEST SENTENCE:

33.People believe that there is another world after Death.

A.That there is another world after Death is believed by people.

B.It was believed that there is another worls after Death.

C.It is believed that there is another world after Death.

D.There is believed to have another world after Death.

34.She is learning English because she wants to get a better job.

A.She is learning English so that she gets a better job.

B.She is learning English so as she gets a better job.

C.She is learning English in order she can get a better job.

D.She is learning English so that she will be able to get a better job

35.This is the first time Linh has watched a live show.

A.Linh used to watch a live show. B.Linh has ever watched a live show before.

C.Linh has already watched a live show D.Linh has never watched a live show before

36.When I was a little boy, I often went fishing with my father.

A.I would like to go fishing with my father when I was a little boy.

B.I am used to go fishing with my father when I was a little boy.

C.I am accustomed to go fishing with my father when I was a lillte boy.

D.I used to go fishing with my father when I was a lillte boy.

37.They bought a gift that was very expenisive for their son.

A.They gave their son a gift that was very expensive.

B.The gift was so expensive that they did not buy it.

C.Their son bought an expensive gift for his birthday.

D.Although the gift was not expensive,they did not buy it.

38. “ Don’t forget to bring your library books.” My mother said.

A.My mother reminded me to bring my library books.

B.My mother reminded me not to forget your library books.

C.My mother reminded me don’t forget your library books.

D.My mother reminded me not forget my library books.

39.The lesson was extremely difficult . Nobody could understand it.

A.The lesson is so difficult that nobody can understand it.

B.The lesson wasn’t difficult enough for every one to understand .

C.It was such a difficult lesson that nobody could understand it.

D.It was such an extemely difficult lesson that nobody understand it.

40.It’s been four years since I last saw them.

A.I see them once every four years. B.I haven’t seen them for four years.

D.I didn’t see them four years ago. D.They didn’t see me four years ago.

#Tiếng anh lớp 9

1

DT

Đỗ Thanh Hải

CTVVIP

23 tháng 9 2021

CLOSEST SENTENCE:

33.People believe that there is another world after Death.

A.That there is another world after Death is believed by people.

B.It was believed that there is another worls after Death.

C.It is believed that there is another world after Death.

D.There is believed to have another world after Death.

34.She is learning English because she wants to get a better job.

A.She is learning English so that she gets a better job.

B.She is learning English so as she gets a better job.

C.She is learning English in order she can get a better job.

D.She is learning English so that she will be able to get a better job

35.This is the first time Linh has watched a live show.

A.Linh used to watch a live show. B.Linh has ever watched a live show before.

C.Linh has already watched a live show D.Linh has never watched a live show before

36.When I was a little boy, I often went fishing with my father.

A.I would like to go fishing with my father when I was a little boy.

B.I am used to go fishing with my father when I was a little boy.

C.I am accustomed to go fishing with my father when I was a lillte boy.

D.I used to go fishing with my father when I was a lillte boy.

37.They bought a gift that was very expenisive for their son.

A.They gave their son a gift that was very expensive.

B.The gift was so expensive that they did not buy it.

C.Their son bought an expensive gift for his birthday.

D.Although the gift was not expensive,they did not buy it.

38. “ Don’t forget to bring your library books.” My mother said.

A.My mother reminded me to bring my library books.

B.My mother reminded me not to forget your library books.

C.My mother reminded me don’t forget your library books.

D.My mother reminded me not forget my library books.

39.The lesson was extremely difficult . Nobody could understand it.

A.The lesson is so difficult that nobody can understand it.

B.The lesson wasn’t difficult enough for every one to understand .

C.It was such a difficult lesson that nobody could understand it.

D.It was such an extemely difficult lesson that nobody understand it.

40.It’s been four years since I last saw them.

A.I see them once every four years. B.I haven’t seen them for four years.

D.I didn’t see them four years ago. D.They didn’t see me four years ago.

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VD

Văn Dũng Nguyễn

2 tháng 1 2018 - olm

Puzzle number 1 There are three people who claim to be their brother, but ask him if he does not have a brother. According to the other 3 people who is not right?Puzzle 2 Everyone has one at the time, down, but it never moves or moves anywhere.Puzzle 3 Make sure you have something that can help us look straight through the wallPuzzle Number 4 Everyone has something that when you call it never appears even if you hit the deadPuzzle 5 There are many languages in the world, so any language that...

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#Tiếng anh lớp 6

3

NN

Nguyễn Ngọc Anh

8 tháng 1 2018

bạn nói vậy ko ai biết đâu

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VD

Văn Dũng Nguyễn

9 tháng 1 2018

Đố vui mà ^^

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LQ

Lê Quỳnh Anh

15 tháng 7 2019

Mark the letter a, B, C, or D on your answer sheet to indicate the sentence that is closest meaning to each of the following questions or indicate the correct answer to each of them from 1 to 7 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...

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Mark the letter a, B, C, or D on your answer sheet to indicate the sentence that is closest meaning to each of the following questions or indicate the correct answer to each of them from 1 to 7

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 become 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 appropriately 95 percent of all species died. Mass extinction 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 ocean. 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 that 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 to adapt. If so, some of evolutionary history may reflect a sequence of essentially random events.

According to paragraph 2, evidence from fossil suggests that

A. extinction of species has occurred from time to time throughout Earth’s history

B. dinosaurs became extinct much earlier than scientists originally believed

C. extinctions on Earth have generally been massive

D. there has been only one mass extinction in Earth’s history

#Mẫu giáo

1

DH

Dương Hoàn Anh

15 tháng 7 2019

Đáp án A

Theo đoạn 2, bằng chứng từ hóa thạch chỉ ra rằng:

A. Sự tuyệt chủng của các loài đã xảy ra liên tục trong suốt tiến trình lịch sử Trái Đất.

B. Khủng long đã tuyệt chủng sớm hơn nhiều so với các nhà khoa học tin rằng.

C. Sự tuyệt chủng trên trái đất nhìn chung là mang tính hàng loạt.

D. Chỉ có duy nhất 1 lần sự tuyệt chủng hàng loạt diễn ra trong lịch sử Trái Đất.

Dẫn chứng ở câu đầu tiên đoạn 2: “The fossil record reveals that extinction has occurred throughout the history of Earth”- ( Ghi nhận về hóa thạch tiết lộ rằng sự tuyệt chủng đã xảy ra trong suốt tiến trình lịch sử Trái Đất)

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LQ

Lê Quỳnh Anh

11 tháng 10 2017

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 28 to 34. 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...

Đọc tiếp

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 28 to 34.

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 that 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.

Which of the following is NOT mentioned in paragraph 1 as resulting from rapid ecological change?

A. Temperature changes

B. Availability of food resources

C. Introduction of new species

D. Competition among species

#Mẫu giáo

1

DH

Dương Hoàn Anh

11 tháng 10 2017

Chọn C

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LQ

Lê Quỳnh Anh

25 tháng 6 2017

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 36 to 42. 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...

Đọc tiếp

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 36 to 42.

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 that 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

Which of the following can be inferred from the theory of periodic extinction mentioned in paragraph 3?

A. Many scientists could be expected to disagree with it

B. Evidence to support the theory has recently been found

C. The theory is no longer seriously considered

D. Most scientists believe the theory to be accurate

#Mẫu giáo

1

DH

Dương Hoàn Anh

25 tháng 6 2017

Đáp án A

Từ học thuyết tuyệt chủng chu kì đuộc đề cập ở đoạn 3, có thể suy ra điều gì?

A. rất nhiều nhà khoa học có thể phản đối nó

B. hầu hết các nhà khoa học tin học thuyết này là đúng

C. học thuyết này không còn được xem xét một cách nghiêm túc nữa

D. bằng chứng để ủng hộ học thuyết này đã được tìm ra

Giải thích: Thông tin nằm ở “This periodic extinction might be due to intersection of the Earth’s orbit with a cloud of comets, but this theory is purely speculative”. Vì nó hoàn toàn là suy đoán nên ta có thể suy đoán rằng nó bị nhiều nhà khoa học khác phản đối

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LQ

Lê Quỳnh Anh

24 tháng 2 2017

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 28 to 34. 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...

Đọc tiếp

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 28 to 34.

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 that 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.

Which of the following can be inferred from the theory of periodic extinction mentioned in paragraph 3?

A. Many scientists could be expected to disagree with it

B. Evidence to support the theory has recently been found.

C. The theory is no longer seriously considered.

D. Most scientists believe the theory to be accurate.

#Mẫu giáo

1

DH

Dương Hoàn Anh

24 tháng 2 2017

Chọn A

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LQ

Lê Quỳnh Anh

5 tháng 11 2018

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. 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...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50.

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 adapted. 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, even affect 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. The 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 that 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 revolutionary history may reflect a sequence of essentially random events.

Question 49: Which of the following can be inferred from the theory of periodic extinction mentioned in paragraph 3?

A. many scientists could be expected to disagree with it.

B. most scientists believe the theory to be accurate.

C. the theory is no longer seriously considered.

D. evidence to support the theory has recently been found.

#Mẫu giáo

1

DH

Dương Hoàn Anh

5 tháng 11 2018

Đáp án A

Dịch nghĩa: Từ học thuyết tuyệt chủng chu kì được đề cập ở đoạn 3 có thể suy ra điều gì?

A. rất nhiều nhà khoa học có thể phản đối nó.

B. hầu hết các nhà khoa học tin học thuyết này là đúng.

C. học thuyết này không còn được xem xét một cách nghiêm túc nữa.

D. bằng chứng để ủng hộ học thuyết này đã được tìm ra.

Giải thích: Thông tin nằm ở “The periodic extinction might be due to intersection of the earth’s orbit with a cloud of comets, but this theory is purely speculative”. Vì nó hoàn toàn là suy đoán nên ta có thể suy đoán rằng nó bị nhiều nhà khoa học khác phản đối.

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LQ

Lê Quỳnh Anh

15 tháng 5 2019

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50. 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...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50.

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 adapted. 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, even affect 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. The 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 that 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 revolutionary history may reflect a sequence of essentially random events.

Which of the following can be inferred from the theory of periodic extinction mentioned in paragraph 3?

A. many scientists could be expected to disagree with it

B. most scientists believe the theory to be accurate

C. the theory is no longer seriously considered

D. evidence to support the theory has recently been found

#Mẫu giáo

1

DH

Dương Hoàn Anh

15 tháng 5 2019

Đáp án A

Dịch nghĩa: Từ học thuyết tuyệt chủng chu kì được đề cập ở đoạn 3 có thể suy ra điều gì?

A. rất nhiều nhà khoa học có thể phản đối nó.

B. hầu hết các nhà khoa học tin học thuyết này là đúng.

C. học thuyết này không còn được xem xét một cách nghiêm túc nữa.

D. bằng chứng để ủng hộ học thuyết này đã được tìm ra.

Giải thích: Thông tin nằm ở “The periodic extinction might be due to intersection of the earth’s orbit with a cloud of comets, but this theory is purely speculative”. Vì nó hoàn toàn là suy đoán nên ta có thể suy đoán rằng nó bị nhiều nhà khoa học khác phản đối.

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DM

Dương Minh

20 tháng 8 2019

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50.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...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 43 to 50.

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 adapted. 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, even affect 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. The 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 that 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 revolutionary history may reflect a sequence of essentially random events.

Which of the following can be inferred from the theory of periodic extinction mentioned in paragraph 3?

A. many scientists could be expected to disagree with it.

B. most scientists believe the theory to be accurate.

C. the theory is no longer seriously considered.

D. evidence to support the theory has recently been found

#Mẫu giáo

1

NH

Nguyen Hoang Hai

20 tháng 8 2019

Đáp án A

Dịch nghĩa: Từ học thuyết tuyệt chủng chu kì được đề cập ở đoạn 3 có thể suy ra điều gì?

A. rất nhiều nhà khoa học có thể phản đối nó.

B. hầu hết các nhà khoa học tin học thuyết này là đúng.

C. học thuyết này không còn được xem xét một cách nghiêm túc nữa.

D. bằng chứng để ủng hộ học thuyết này đã được tìm ra.

Giải thích: Thông tin nằm ở “The periodic extinction might be due to intersection of the earth’s orbit with a cloud of comets, but this theory is purely speculative”. Vì nó hoàn toàn là suy đoán nên ta có thể suy đoán rằng nó bị nhiều nhà khoa học khác phản đối.

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