Bài 1. Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Question 1: A. genius                     B. gorilla                    C. global                    D. gases

Question 2: A. pollution                B. poaching               C. physical                D. pesticide

Question 3: A. warming                 B. warn                       C. walk                       D. wasn't

Bài 2. Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

Question 4: A. campaign               B. global                    C. balance                  D. carbon

Question 5: A. natural                    B. endangered           C. dangerous             D. habitat

Bài 3. Mark the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Question 6: We need to cut down on the emission of carbon dioxide into the atmosphere.

A. intake                    B. retake                    C. uptake                   D. discharge

Question 7: Land erosion is mainly caused by widespread deforestation.

A. afforestation        B. reforestation         C. logging                  D. lawn mowing

Question 8: In the past, a lot of countries denied having contributed to global warming

A. agreed                   B. refuted                   C. approved               D. avoided

Question 9: Most people admit that they contribute to global warming

A. be partly responsible for    

B. disapprove

C. neglect    

D. cause

Question 10: We must admit that people are heavily polluting the environment.

A. decline                  B. rebut                      C. deny                       D. accept

Question 11: In the polluted environment, infectious diseases can be passed easily from one person to another.

A. fatal                       B. safe                        C. contagious            D. immune

Question 12: Global warming has severe impact on water supplies.

A. very good             B. very bad                C. normal                   D. long-lasting

Question 13: Global warming occurs when the greenhouse gases in the atmosphere trap the heat from the sun.

A. catch                      B. discharge              C. dispose                  D. release

Question 14: Such unhygienic conditions encourage the spread of diseases.

A. decline                  B. stability                 C. decrease                D. increase

Question 15: Deforestation is one of the biggest environmental threats to the ecological balance in the world.

A. sureties                 B. certainties             C. dangers                  D. safety

Bài 4. Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.

Question 16: With clear evidence, his company couldn't deny having dump a large quantity of toxins into the sea.

A. clear evidence     B. deny                       C. having dump        D. into the sea

Question 17: Humans now have to suffer the effects of global warming due to having treat the environment irresponsibly

A. have to                  B. effects of global warming

C. due to                    D. treat the environment

Question 18: Having denied the responsibility for the environmental it caused, the factory was forced to close down.

A. Having denied    B. responsibility      C. environmental      D. was forced to

Question 19:Having been warn about the relationship between climate change and the spread of infectious diseases, everyone should get vaccinated.

A. Having been warn                                   B. between climate change

C. the spread of infectious diseases          D. get vaccinated

Question 20:These companies were accused on having released a large amount of carbon dioxide into the atmosphere.

A. These companies                                     B. accused on      

C. having released                                        D. into the atmosphere

Bài 5: Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.

The Amazon rainforest is home to more than a third of all the world's species of plants, birds and animals. Twenty per cent of all the birds in the world live in the rainforest. Scientists have discovered thousands of types of plants and animals that can only be found there. There are thousands - probably millions more that we haven't discovered yet. There are at least 2.5 million species of insects there. Imagine what would happen if they all lost their home? It couldn't happen, could it? Unfortunately, it's happening right now. Yet, the rainforest is big. But it's getting smaller. The problem is that people are cutting down the trees, mainly to make room for cows. These provide meat and make money for their owners. This process of cutting down trees is called ‘deforestation'.

The good news is that it is slowing down. In 2004, for example, more than 27,000 square kilometres were cut down. That's an area bigger than Wales. In 2006, because of all the campaigns to save rainforest, it dropped to just over 13,000 square kilometres. The bad news is that it's not enough. Scientists predict that by 2030, the rainforest will have become smaller by 40%. It's possible that by the end of the 21st century, the rainforest will have completely disappeared. With deforestation, thousands of the animals, birds, fish and plants that live in the Amazon rainforest lose their home, their natural habitat. Some of them move to other areas, but most of them die. Many species have already become extinct, and many more will if deforestation continues. That will change the balance of life in the rainforest and could cause enormous problems to the region's ecosystem.

There's another problem too. Trees and plants are a vital source of oxygen. If we cut them down, we lose that oxygen. But it's worse than just that. With deforestation, the trees and plants are burnt. This sends gases into the Earth's atmosphere, which stops some of the Earth's heat escaping. That then leads to the temperature here on the ground going up. This increase in the world's temperature is called 'global warming', and most scientists believe it's a very serious issue. If they stopped deforestation, it might help prevent global warming

Question 21: Which title best summarizes the main idea of the passage?

A. Chances for owners of cow ranches

B. Threats to Amazon rainforest

C. Global warming effects

D. Habitat destruction

Question 22: According to the passage, which of the following is TRUE?

A. A fifth of all the birds in the world live in the rainforest.

B. 20% of all the animals in the world live in the rainforest.

C. Nearly two million species of insects are found in the Amazon rainforest.

D. Nearly half of the world's species of plants grow there.

Question 23: In paragraph 1, the word "room” is closest in meaning to ____.

A. chamber    

B. flat    

C. area    

D. studio

Question 24: In paragraph 2, the word "it” refers to ____.

A. room    

B. process    

C. rainforest    

D. deforestation

Question 25: According the passage, which of the following is TRUE about Amazon rainforest?

A. It has become smaller by 40%.

B. The deforestation is decreasing.

C. 25% of animal species are extinct now.

D. The deforestation is under control.

Question 26: In paragraph 2, the word “enormous” is closest in meaning to ____.

A. serious    

B. important    

C. common    

D. insignificant

Question 27: What might help to restrain global warming?

A. increasing deforestation    

B. stabilizing deforestation

C. stop cutting down trees    

D. clearing more trees for farming

Question 28: In the final paragraph, the word "increase” is closest in meaning to ____.

A. rise    

B. decrease    

C. degrade    

D. minify