K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

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.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,...
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.

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.

What does the author say in paragraph 1 regarding most species in Earth’s history?

A. They have remained basically unchanged from their original forms.  

B. They have caused rapid change in the environment.


 

C. They are no longer in existence.

D. They have been able to adapt to ecological changes.

1
19 tháng 2 2019

Đáp án : C

No longer in existence = không còn tồn tại. Ngay câu đầu tiên của bài: It is estimated that over 99 percent of all species that ever existed have become extinct = người ta ước lượng rằng hơn 99% các loài động vật từng tồn tại đã trở nên tuyệt chủng

15 tháng 9 2018

Đáp án D

Giải thích: the number of + Động từ số ít => has

Dịch nghĩa: Thế giới đang trở nên công nghiệp hóa và số lượng giống loài động vật những con mà dần trở nên tuyệt chủng đang tăng

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.It is estimated that about three billion people use the internet computer network around the world. Most people use the Internet to (1) _______information or for entertainment. A new study, however, shows US that almost 10% of Internet users are using it SO often that it is seriously harming their lives. The study says that these...
Đọc tiếp

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.

It is estimated that about three billion people use the internet computer network around the world. Most people use the Internet to (1) _______information or for entertainment. A new study, however, shows US that almost 10% of Internet users are using it SO often that it is seriously harming their lives. The study says that these people may find it difficult to stop using the Internet because they have become addicted. Someone who is addicted finds it extremely difficult to stop (2) _______activity. According to a psychologist in the field. 30% of Internet users claim that they use the Internet to escape from (3) _______or emotions. The study also shows that having a chat or discussion with strangers on the Internet is one of the most (4) _______activities.

1. A. take                    B. get                          C. make                       D. catch

2. A. the                      B. a                              C. an                            D. Ø

3. A. trouble                B. nuisance                  C. dangers                   D. problems

4. A. liking                  B. desired                    C. addictive                D. hunted

1
18 tháng 3 2022

It is estimated that about three billion people use the internet computer network around the world. Most people use the Internet to (1) _______information or for entertainment. A new study, however, shows US that almost 10% of Internet users are using it SO often that it is seriously harming their lives. The study says that these people may find it difficult to stop using the Internet because they have become addicted. Someone who is addicted finds it extremely difficult to stop (2) _______activity. According to a psychologist in the field. 30% of Internet users claim that they use the Internet to escape from (3) _______or emotions. The study also shows that having a chat or discussion with strangers on the Internet is one of the most (4) _______activities.

1. A. take                    B. get                          C. make                       D. catch

2. A. the                      B. a                              C. an                            D. Ø

3. A. trouble                B. nuisance                  C. dangers                   D. problems

4. A. liking                  B. desired                    C. addictive                D. hunted

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 by 2050 more than two-thirds of the world's population will live in cities, up from about 54 percent today. While the many benefits of organized and efficient cities are well understood, we need to recognize that this rapid, often unplanned urbanization brings risks of profound social instability, risks to critical...
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 by 2050 more than two-thirds of the world's population will live in cities, up from about 54 percent today. While the many benefits of organized and efficient cities are well understood, we need to recognize that this rapid, often unplanned urbanization brings risks of profound social instability, risks to critical infrastructure, potential water crises and the potential for devastating spread of disease. These risks can only be further exacerbated as this unprecedented transition from rural to urban areas continues.
How effectively these risks can be addressed will increasingly be determined by how well cities are governed. The increased concentration of people, physical assets, infrastructure and economic activities mean that the risks materializing at the city level will have far greater potential to disrupt society than ever before.
Urbanization is by no means bad by itself. It brings important benefits for economic, cultural and societal development. Well managed cities are both efficient and effective, enabling economies of scale and network effects while reducing the impact on the climate of transportation. As such, an urban model can make economic activity more environmentally-friendly. Further, the proximity and diversity of people can spark innovation and create employment as exchanging ideas breeds new ideas.
But these utopian concepts are threatened by some of the factors driving rapid urbanization. For example, one of the main factors is rural-urban migration, driven by the prospect of greater employment opportunities and the hope of a better life in cities. But rapidly increasing population density can create severe problems, especially if planning efforts are not sufficient to cope with the influx of new inhabitants. The result may, in extreme cases, be widespread poverty. Estimates suggest that 40% of the world's urban expansion is taking place in slums, exacerbating socio-economic disparities and creating unsanitary conditions that facilitate the spread of disease.
The Global Risks 2015 Report looks at four areas that face particularly daunting challenges in the face of rapid and unplanned urbanization: infrastructure, health, climate change, and social instability. In each of these areas we find new risks that can best be managed or, in some cases, transferred through the mechanism of insurance.
Question 36: The word “that" in paragraph 4 refers to __________.
​A. urban expansion ​​B. socio-economic disparities
​C. disease  ​D. unsanitary conditions
Question 37:According to paragraph 3, what is one of the advantages of urbanization?
​A. It minimizes risks for economic, cultural and societal development.
​B. It makes water supply system both efficient and effective.  
​C. Weather and climate in the city will be much improved.
​D. People may come up with new ideas for innovation.
Question 38:Which statement is TRUE, according to the passage?
​A. Urbanization brings important benefits for development as well.
​B. 54% of the world's population will live in cities by 2050.
​C. Risks cannot be addressed effectively no matter how well cities are governed.
​D. Rapidly increasing population density can help solve poverty.
Question 39: The word "addressed" in paragraph 2 is closest in meaning to _________.
​A. aimed at ​B. dealt with ​C. added to ​D. agreed on
Question 40: What can be inferred from the passage?
​A. Poverty may be a foregone conclusion of unplanned urbanization.
​B. Diseases are caused by people migrating to cities.  
​C. Urbanization can solve the problem of environmental pollution in cities.
​D. The increasing number of people in cities can create more employment.
Question 41: Which is the most suitable title for the passage?
​A. The Risks of Rapid Urbanization in Developing Countries
​B. Infrastructure and Economic Activities in Cities
​C. The Global Risks 2015 Report on Developing Urban Areas
​D. Rapid Urbanization Put Cities in Jeopardy
Question 42: The word “spark” in paragraph 3 is closest in meaning to ___________.
​A. need ​B. start ​C. encourage ​D. design

1
17 tháng 6 2021

Question 36: The word “that" in paragraph 4 refers to __________.
​A. urban expansion ​​B. socio-economic disparities
​C. disease  ​D. unsanitary conditions
Question 37:According to paragraph 3, what is one of the advantages of urbanization?
​A. It minimizes risks for economic, cultural and societal development.
​B. It makes water supply system both efficient and effective.  
​C. Weather and climate in the city will be much improved.
​D. People may come up with new ideas for innovation.
Question 38:Which statement is TRUE, according to the passage?
​A. Urbanization brings important benefits for development as well.
​B. 54% of the world's population will live in cities by 2050.
​C. Risks cannot be addressed effectively no matter how well cities are governed.
​D. Rapidly increasing population density can help solve poverty.
Question 39: The word "addressed" in paragraph 2 is closest in meaning to _________.
​A. aimed at ​B. dealt with ​C. added to ​D. agreed on
Question 40: What can be inferred from the passage?
​A. Poverty may be a foregone conclusion of unplanned urbanization.
​B. Diseases are caused by people migrating to cities.  
​C. Urbanization can solve the problem of environmental pollution in cities.
​D. The increasing number of people in cities can create more employment.
Question 41: Which is the most suitable title for the passage?
​A. The Risks of Rapid Urbanization in Developing Countries
​B. Infrastructure and Economic Activities in Cities
​C. The Global Risks 2015 Report on Developing Urban Areas
​D. Rapid Urbanization Put Cities in Jeopardy
Question 42: The word “spark” in paragraph 3 is closest in meaning to ___________.
​A. need ​B. start ​C. encourage ​D. design

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.Scotland: The Land of LegendsIf we travel all over Scotland, we can see that it has three main parts: Lowlands, Uplands and Highlands with their Grampian Mountains, where the tallest mountain peak, Ben Nevis, is located.You are sure to enjoy the beauty of the Scottish varied landscape: the hills covered with purple heather, its beautiful lakes (here they are...
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.

Scotland: The Land of Legends

If we travel all over Scotland, we can see that it has three main parts: Lowlands, Uplands and Highlands with their Grampian Mountains, where the tallest mountain peak, Ben Nevis, is located.

You are sure to enjoy the beauty of the Scottish varied landscape: the hills covered with purple heather, its beautiful lakes (here they are called lochs), its green and narrow valleys.

The biggest and the most beautiful lake in Scotland is Loch Lomond, but the most famous one is Loch Ness with its mysterious monster Nessie. Nessie sometimes appears to scare the tourist but only in fine weather!

But what can be more curious and attractive for tourist than a man in the kilt, playing the bagpipes? The Celts of Scotland made the chequered pattern of tartan – the national dress of the country. The earliest Scots formed themselves into clans (family groups) and the tartan became a symbol of the sense of kinship. There are about 300 different clans in Scotland, and each has its own colour and pattern of tartan together with the motto.

Scotland is a land of many famous people: writer and poets, scientist and philosophers, such as Robert Burns, Arthur Conan Doyle, Alexander Graham Hell, or Alexander Fleming.
Question: In early times, 300 clans were different from each other in __________.

(2 Points)

. the chequered pattern of tartan and the sense of kinship

. its area and population and beautiful landscape

. its own colour and pattern of tartan together with the motto

. its green and narrow valley where they lived

0
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.      More than 90 percent of teenagers nowadays use social media. The increasing usage of social media has led to (23) __________ large number of teenagers to be bullied or become a bully online. Cyberbullying, a (24) __________ to describe bullying that happens on technology platforms, is a serious problem. Studies show that...
Đọc tiếp

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.

      More than 90 percent of teenagers nowadays use social media. The increasing usage of social media has led to (23) __________ large number of teenagers to be bullied or become a bully online. Cyberbullying, a (24) __________ to describe bullying that happens on technology platforms, is a serious problem. Studies show that teenagers often say mean thing and hurt people because they are not aware of the effect of their action. When you socialize in real life, facial expressions and body language allows you (25) __________ what you say can be hurtful. The same thing cannot be said about when you socialize, using social media. Teenagers also bully because they can get away with it. Teens can (26) __________ bully their peers online without facing any real consequences. Being bullied can lead to depression, low self-esteem or suicide thought. Cyberbullying also (27) __________ the bullies who often have problem like violence tendency, alcohol and drug abuse……

Question 1.        A. a                             B. an                           C. the                          D. 0

Question 2.        A. way                        B. mean                      C. term                       D. kind

Question 3.        A. realize                   B. to realize               C. realized                 D. realizing

Question 4.        A. easy                       B. easily                     C. easier                     D. the easiest

Question 5.        A. effect                     B. effects                   C. affects                   D. affect

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 following questions.

Dear Anna,

            Before I answer your question, I just want to let you know how brave you are for reaching out for help. Most teenagers in your situation would not have written to me for advice.

Now onto your problem. When your friends talked you into smoking a cigarette with them, they were peers pressuring you. This happens to a lot of teenagers and even grow-ups. Friends try to influence in this case was negative because they pressured you into underage smoking which is dangerous. Don’t beat yourself up because you gave in. Peer pressure can even affect the strongest-willed person. Next time, when your friends ask you to smoke again, just hold your ground and say no. If they keep pressuring you, you should walk away and find a new group of friends, the one who can respect your decisions, and help you become a better person.

Question 6.        What is Anna’s problem?

A.    Her friends asked her to buy a cigarette for them.

B.    Her friends didn’t let her smoke a cigarette.

C.    Her friends bought a cigarette for her.

D.    Her friends persuaded her to smoke a cigarette with them.

Question 7.        Why was the influence of Anna’s friends negative according to Dr. Grey?

A.    Because Anna didn’t do what her friends want.

B.    Because Anna didn’t smoke with her friends.

C.    Because Anna’s friends were so dangerous.

D.    Because Anna’s friends pressured her into underage smoking which is dangerous.

Question 8.        Who can peer pressure affect?

A.    Anyone even the strongest-willed person.

B.    Anyone except for the strongest-willed person.

C.    People who are strong.

D.    Only the strong-willed person.

Question 9.        What does Dr. Grey advise Anna to do when her friends ask her to smoke again?

A.    Lie on the ground and say no                           C. Hold her ground and say no

B.    Hold her ground and say yes                            D. Lie on the ground and say yes

Question 10.    What kind of friends does Dr. Grey advise Anna to find?

A.    Those who can respect her decisions and help her become a better person.

B.    Those whose decisions she can respect and help them become better.

C.    Those who can respect her and those she can help to become better.

D.    Those who decisions she can respect and those who can help her become a better person.

0
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.More than 90 percent of teenagers nowadays use social media. The increasing usage of social media has led to (23)________  large number of teenagers to be bullied or become a bully online. Cyberbullying, a (24) ___________ to describe bullying that happens on technology platforms, is a serious problem. Studies show that teenagers often...
Đọc tiếp

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.

More than 90 percent of teenagers nowadays use social media. The increasing usage of social media has led to (23)________  large number of teenagers to be bullied or become a bully online. Cyberbullying, a (24) ___________ to describe bullying that happens on technology platforms, is a serious problem. Studies show that teenagers often say mean thing and hurt other people because they are not aware of the effect of their action. When you socialize in real life, facial expressions and body language allows you (25) _________ what you say can be hurtful. The same thing cannot be said about when you socialize, using social media. Teenagers also bully because they can get away with it. Teens can (26) _________ bully their peers online without facing any real consequences. Being bullied can lead to depression, low self-esteem or suicide thought. Cyberbullying also (27)__________ the bullies who often have problem like violence tendency, alcohol and abuse...

 

Question 23: A. a B. an C. the D. 0    

Question 24: A. way B. mean C. term D. kind    

Question 25: A. realize B. to realize C. realized D. realizing    

Question 26: A. easy B. easily C. easier D. the easiest    

Question 27: A. effect B. effects C. affects D. affect  

 

 

 

 

 

 

 

 

 

2
5 tháng 1 2022

23c

24d

25a

26b

27d

5 tháng 1 2022

A

C

B

B

C

5 tháng 10 2017

Đáp án: C

Giải thích: Dẫn chứng nằm ở 2 dòng cuối của đoạn 1.

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.Natural disasters include all types of severe (25)__________  ,which have the potential to pose a significant (26)__________   to human health and safety, property, critical infrastructure, and homeland security. Natural disasters occur both seasonally and without warning, subjecting the nations to frequent periods of insecurity,...
Đọc tiếp

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.

Natural disasters include all types of severe (25)__________  ,which have the potential to pose a significant (26)__________   to human health and safety, property, critical infrastructure, and homeland security. Natural disasters occur both seasonally and without warning, subjecting the nations to frequent periods of insecurity, disruption, and economic (27)__________  . 

Winter storms occur when a significant amount of snow or (28)__________   accumulates over a short period of time, (29)__________ roads, disrupting communications systems, causing power outages, and threatening life safety.

Ninety percent of natural disasters within the United States involve flooding. Consequently, (30)__________  lead to more economic damage and loss of life and property than any other natural hazard.

More than one thousand tornadoes (31)__________  the United States every year, causing significant disruption to transportation, power, gas, water, and communication services.

Each year, the United States experiences dozens of severe earthquakes, any of which can bring (32)__________ the collapse of hundreds of buildings.

25. A. pollution                       B. weather                   C. diseases               D. floods  

26. A. threat                           B. impact                     C. effect                    D. influence  

27. A. development                B. improvement          C. fail                  D. loss  

28. A. ice                                 B. soil                         C. rains                  D. gas  

29. A. crossing                        B. preventing             C. blocking                D. building  

30. A. volcanoes                     B. droughts                C. floods             D. mudslide  

31. A. hit                                 B. strikes                    C. buried                            D. raged  

32. A. about                           B. in                            C. with                               D. on  

0
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.Natural disasters include all types of severe 25__________  ,which have the potential to pose a significant 26_______   to human health and safety, property, critical infrastructure, and homeland security. Natural disasters occur both seasonally and without warning, subjecting the nations to frequent periods of insecurity,...
Đọc tiếp

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.

Natural disasters include all types of severe 25__________  ,which have the potential to pose a significant 26_______   to human health and safety, property, critical infrastructure, and homeland security. Natural disasters occur both seasonally and without warning, subjecting the nations to frequent periods of insecurity, disruption, and economic 27__________ 

Winter storms occur when a significant amount of snow or 28________   accumulates over a short period of time, 29_______ roads, disrupting communications systems, causing power outages, and threatening life safety.

Ninety percent of natural disasters within the United States involve flooding. Consequently, 30_______  lead to more economic damage and loss of life and property than any other natural hazard.

More than one thousand tornadoes 31__________  the United States every year, causing significant disruption to transportation, power, gas, water, and communication services.

Each year, the United States experiences dozens of severe earthquakes, any of which can bring 32__________ the collapse of hundreds of buildings.

25. A. pollution                       B. weather                   C. diseases                 D. floods  

26. A. threat                           B. impact                     C. effect                     D. influence  

27. A. development                B. improvement          C. fail                         D. loss  

28. A. ice                                 B. soil                        C. rains                        D. gas  

29. A. crossing                        B. preventing            C. blocking                  D. building  

30. A. volcanoes                     B. droughts                C. floods                    D. mudslide  

31. A. hit                                 B. strikes                    C. buried                    D. raged  

32. A. about                           B. in                            C. with                       D. on  

 

1
5 tháng 3 2023

25B

26A

27D

28A

29C

30C

31A

32D

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.There is one planet that still fascinates and teases scientists mainly because it doesn’t have an atmosphere to obscure observation, yet it is not big enough for sufficiently accurate telescopic observation. The fact that it is also very close to the sun also makes it difficult for astronomers.However, space telescopes have told us a lot more about Mercury. It...
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.

There is one planet that still fascinates and teases scientists mainly because it doesn’t have an atmosphere to obscure observation, yet it is not big enough for sufficiently accurate telescopic observation. The fact that it is also very close to the sun also makes it difficult for astronomers.

However, space telescopes have told us a lot more about Mercury. It is rather similar to Earth’s moon and to Mars. There are mountainous areas dotted with craters and large valleys which are uncratered. The moon’s valleys have fewer cracks and ridges are smoother. Mercury’s valleys are filled with volcanic rocks, similar to on the moon, yet there is no evidence of volcanoes, even extinct ones, on Mercury, as there is on the both Mars and the moon, and of course here on Earth.

So, scientists presume the valleys on Mercury were caused by different things, that is to say not by volcanoes, but by very large meteorites, which also caused the cracks in the terrain and left the ridges rough and uneven. More and better photos of Mercury are at present at best only hypotheses.

Question28. What is the main topic of this passage?

A. Astronomers’ difficulties. C. The Earth’s moon.

B. Observation of planets. D. The planet, Mercury

Question29. Why does Mercury still tease scientists?

A. Because it has an atmosphere which obscures observation.

B. Because it is too close to the sun.

C. Because it is difficult for space probes to get close to.

D. Because it is too small.

Question30. What is true about Mercury but not true about the moon or Mars?

A. The valleys are filled with volcanic rocks. C. There are no volcanoes.

B. The valleys are uncratered. D. They are hilly regions.

Question31. What does the author imply space telescopes can do better than land-based telescopes?

A. Show more of the planet, Mercury. C. Show what caused Mercury’s valleys.

B. Show the meteorites which hit Mercury. D. Show the volcanoes on Mercury. 

Question32. What can we infer from the passage that astronomers still need to get more detailed observation of Mercury?

A. More hypotheses C. Larger space telescopes.

B. Better and more space telescopes. D. More ways to prove hypotheses.

1
6 tháng 1 2022

Question28. What is the main topic of this passage?

A. Astronomers’ difficulties. C. The Earth’s moon.

B. Observation of planets. D. The planet, Mercury

Question29. Why does Mercury still tease scientists?

A. Because it has an atmosphere which obscures observation.

B. Because it is too close to the sun.

C. Because it is difficult for space probes to get close to.

D. Because it is too small.

Question30. What is true about Mercury but not true about the moon or Mars?

A. The valleys are filled with volcanic rocks. C. There are no volcanoes.

B. The valleys are uncratered. D. They are hilly regions.

Question31. What does the author imply space telescopes can do better than land-based telescopes?

A. Show more of the planet, Mercury. C. Show what caused Mercury’s valleys.

B. Show the meteorites which hit Mercury. D. Show the volcanoes on Mercury. 

Question32. What can we infer from the passage that astronomers still need to get more detailed observation of Mercury?

A. More hypotheses C. Larger space telescopes.

B. Better and more space telescopes. D. More ways to prove hypotheses.