Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Some scientists say that it is still not too late to minimize the effects of climate change________ enough money and effort are invested in correct projects.

A. in case

B. so that

C. even if

D. provided that

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.

As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening. Where do the substances which pollute the water come from? There are two main sources – sewage and industrial waste. As more detergent is used in the home, so more of it is finally put into our rivers, lakes and seas.

Detergents harm water birds dissolving the natural substance which keep their feather waterproof. Sewage itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many high poisonous things in it, such as copper and lead. So, if we want to stop this pollution, the answer is simple, sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.

Pollution in water is noticed ______.

A. when the first organisms is affected

B. as soon as the balance of nature is destroyed.

C. when poisons are poured into water

D. when a good many fish and birds die

Read the following passage and mark the letter A, B, t or D to indicate the correct word phrase that best fits each of the numbered blanks from 31 to 35.

GLOBAL WARMING

Few people now question the reality of global warming and its effects on the world's climate. Many scientists (31) ______ the blame for recent natural disasters on the increase in the world's temperatures and are convinced that, more than ever before, the Earth is at risk from the forces of the wind, rain and sun. (32) ______to them, global warming is making extreme weather events, such as hurricanes and droughts, even more (33) ______ and causing sea levels all around the world to rise.

Environmental groups are putting pressure on governments to take action to reduce the amount of carbon dioxide which is given (34) ______ by factories and power plants, thus attacking the problem at its source. They are in favor of more money being spent on research into solar, wind and wave energy devices, which could then replace existing power station.

            Some scientists, (35) ______, believe that even if we stopped releasing carbon dioxide and other gases into the atmosphere tomorrow, we would have to wait several hundred years to notice the results. Global warming, it seems, is to stay.

Question 33

A. strict

B. severe

C. strong

D. healthy

Read the following passage and mark the letter A, B, t or D to indicate the correct word phrase that best fits each of the numbered blanks from 31 to 35.

GLOBAL WARMING

Few people now question the reality of global warming and its effects on the world's climate. Many scientists (31) ______ the blame for recent natural disasters on the increase in the world's temperatures and are convinced that, more than ever before, the Earth is at risk from the forces of the wind, rain and sun. (32) ______to them, global warming is making extreme weather events, such as hurricanes and droughts, even more (33) ______ and causing sea levels all around the world to rise.

Environmental groups are putting pressure on governments to take action to reduce the amount of carbon dioxide which is given (34) ______ by factories and power plants, thus attacking the problem at its source. They are in favor of more money being spent on research into solar, wind and wave energy devices, which could then replace existing power station.

            Some scientists, (35) ______, believe that even if we stopped releasing carbon dioxide and other gases into the atmosphere tomorrow, we would have to wait several hundred years to notice the results. Global warming, it seems, is to stay.

Question 31

A. give

B. put

C. take

D. have

Read the following passage and mark the letter A, B, t or D to indicate the correct word phrase that best fits each of the numbered blanks from 31 to 35.

GLOBAL WARMING

Few people now question the reality of global warming and its effects on the world's climate. Many scientists (31) ______ the blame for recent natural disasters on the increase in the world's temperatures and are convinced that, more than ever before, the Earth is at risk from the forces of the wind, rain and sun. (32) ______to them, global warming is making extreme weather events, such as hurricanes and droughts, even more (33) ______ and causing sea levels all around the world to rise.

Environmental groups are putting pressure on governments to take action to reduce the amount of carbon dioxide which is given (34) ______ by factories and power plants, thus attacking the problem at its source. They are in favor of more money being spent on research into solar, wind and wave energy devices, which could then replace existing power station.

          Some scientists, (35) ______, believe that even if we stopped releasing carbon dioxide and other gases into the atmosphere tomorrow, we would have to wait several hundred years to notice the results. Global warming, it seems, is to stay.

Điền ô 32

A. concerning

B. regarding

C. depending

D. according

Read the following passage and mark the letter A, B, t or D to indicate the correct word phrase that best fits each of the numbered blanks from 31 to 35.

GLOBAL WARMING

Few people now question the reality of global warming and its effects on the world's climate. Many scientists (31) ______ the blame for recent natural disasters on the increase in the world's temperatures and are convinced that, more than ever before, the Earth is at risk from the forces of the wind, rain and sun. (32) ______to them, global warming is making extreme weather events, such as hurricanes and droughts, even more (33) ______ and causing sea levels all around the world to rise.

Environmental groups are putting pressure on governments to take action to reduce the amount of carbon dioxide which is given (34) ______ by factories and power plants, thus attacking the problem at its source. They are in favor of more money being spent on research into solar, wind and wave energy devices, which could then replace existing power station.

            Some scientists, (35) ______, believe that even if we stopped releasing carbon dioxide and other gases into the atmosphere tomorrow, we would have to wait several hundred years to notice the results. Global warming, it seems, is to stay.

Question 32

A. concerning

B. regarding

C. depending

D. according