Ôn tập môn Tiếng Anh Lớp 11 thí điểm - Unit 6: Global warming (Có đáp án)

Unit 6. GLOBAL WARMING
 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.
Which title best summarises 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 
According to the passage, which of the following is TRUE?
A fifth of all the birds in the world live in the rainforest. 
20% of all the animals in the world live in the rainforest.
Nearly two million species of insects are found in the Amazon rainforest.
Nearly half of the world's species of plants grow there. 
In paragraph 1, the word "room” is closest in meaning to ____.
	A. chamber 	B. flat	C. area	D. studio 
In paragraph 2, the word "it” refers to ____.
	A. room 	B. process 	C. rainforest 	D. deforestation 
 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. 
 In paragraph 2, the word “enormous” is closest in meaning to ____.
	A. serious 	B. important 	C. common 	D. insignificant 
 What might help to restrain global warming?
	A. increasing deforestation 	B. stabilising deforestation
	C. ceasing cutting down trees 	D. clearing more trees for farming 
Part VI. WRITING 
 Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions. 
Having seen people suffer global warming consequences, we decided to reduce carbon footprints. 
We decided to reduce carbon footprints before seeing people suffer global warming consequences. 
We saw people suffer global warming consequences after we decided to reduce carbon footprints. 
We decided to cut down on carbon footprints after we saw people suffer global warming consequences. 
We decided to cut down on carbon footprints before we saw people suffer global warming consequences. 
Climate change leads to numerous catastrophic consequences.
Numerous catastrophic consequences result in climate change. 
Numerous catastrophic consequences result from climate change. 
Climate change results from numerous catastrophic consequences. 
Numerous catastrophic consequences cause climate change.
 The increase in earth's temperature can cause heat-related illnesses.
Heat-related illnesses result from the increase in earth's temperature. 
Heat-related illnesses result in the increase in earth's temperature. 
Heat-related illnesses lead to the increase in earth's temperature.
Heat-related illnesses trigger the increase in earth's temperature. 
 Carbon dioxide is one of the primary greenhouse gases that cause global warming.
Carbon dioxide is the only greenhouse gas that causes global warming. 
Global warming results in greenhouse gases, including carbon dioxide. 
One of the main greenhouse gases that lead to global warming is carbon dioxide.
Global warming causes greenhouse gases, including carbon dioxide. 
 Planting trees can contribute to reducing global warming.
Global warming can't be controlled by planting trees. 
Planting trees is the only way to control global warming. 
Planting trees can accelerate global warming.
Planting trees can help reduce global warming. 
 Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions. 
He said that he would take responsibility for his company's damage to the area. But then he denied that. 
Having denied his company's damage, he took responsibility for it. 
He denied having damaged to his company's area. 
He denied having taken responsibility for the damage to his company's area. 
He denied having said that he would take responsibility for his company's damage to the area. 
 He donated a lot of money to environmental protection campaigns. He was admired for that. 
Unless he donated a lot of money to environmental protection campaigns, he was admired. 
He was admired for having donated a lot of money to environmental protection campaigns.
If he had donated a lot of money to environmental protection campaigns, he would have been admired. 
If he donates a lot of money to environmental protection campaigns, he will be admired.
They decided to cut down their carbon footprints. They were praised for that.
They were praised for having decided to decrease their carbon footprints. 
They were not punished for having decided to decrease their carbon footprints.
Unless they decided to cut down their carbon footprints, they were praised for that. 
If they decided to cut down their carbon footprints, they would be praised for that. 
We have advised you on how to cut down your energy use. We remember that. 
We can no longer remember having advised you on how to decrease your energy use. 
We remember having advised you on how to maintain your energy use. 
We remember having advised you on how to decrease your energy use.
We remember to have advised you on how to decrease your energy use. 
 Some scientists have distorted the effects of climate change. They were accused of that. 
Some scientists were accused of having falsify the effects of climate change. 
Some scientists were accused of having been honest about the effects of climate change. 
Although some scientists have distorted the effects of climate change, they were not accused. 
Some scientists were accused of having falsified the effects of climate change.
Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions. 
With clear evidence, his company couldn't deny having dump a large quantity of toxins into the sea.
Humans now have to suffer the effects of global warming due to having treat the environment irresponsibly.
Having denied the responsibility for the environmental it caused, the factory was forced to close down.
 Having been warn about the relationship between climate change and the spread of infectious diseases, everyone should get vaccinated.
These companies were accused on having released a large amount of carbon dioxide into the atmosphere.
Having deciding on the topic of the presentation, he started finding relevant information for it.
Having known about the harmful affects the company had on our neighbourhood, we decided to boycott its products.
Having signed an agreement to reduce carbon dioxide emissions, we were determined to help reduced global warming. 
Having identified the most urgent environmental problems, they start working out all possible solutions.
Having spent all their saving money, they started do some odd jobs to make ends meet.
Having cutting down many trees in the area, now the people here have to suffer really hot summers.
Having decided to use public transport instead private transport, we were determined to reduce carbon footprints.
Having cycled to work every day, I become more responsibly for the environmental issues.
Having watched TV programmes about the farmers' careless use of chemical fertilisers on they crops, many citizen dwellers decided to grow their own vegetables.
Having suffered water shortage in the past, we are all very economic on using water.
Having change our attitude to nature, we started changing our behaviours as well.