Astronauts must be tied to something to prevent them floating around an bumping into equipment (11)__________ they sleep. They may sleep in their seats or in upright lockers or (12)__________ tie themselves to the wall in a sleeping bag. Sometimes they forget to strap down and end up floating around inside the ship, much to the amusement of their fellow crewmembers. On some missions all the crew sleep (13)__________ the same time but during others, they may work round the clock in two shifts. As their ship is traveling (14)__________ fast, they see a sunrise every 90 minutes. Many astronauts find it a difficult way to keep their body clock running smoothly and do not get a lot of sleep. Besides that some of them complain of flashes across their eyelids as they are (15)__________ to sleep caused by cosmic rays zipping through the ship. So although it might seem nice to have a weightless night's sleep it is not always possible in reality.

Câu 21:

Astronauts must be tied to something to prevent them floating around an bumping into equipment (11)__________ they sleep.

A. as

B. because

C. since

D. so

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Câu 22:

They may sleep in their seats or in upright lockers or (12)__________ tie themselves to the wall in a sleeping bag.

A. simply

B. approximately

C. precisely

D. attentively

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Câu 23:

On some missions all the crew sleep (13)__________ the same time but during others, they may work round the clock in two shifts.

A. on

B. at

C. in

D. for

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Câu 24:

As their ship is traveling (14)__________ fast, they see a sunrise every 90 minutes.

A. such

B. much

C. so

D. too

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Câu 25:

Besides that some of them complain of flashes across their eyelids as they are (15)__________ to sleep caused by cosmic rays zipping through the ship.

A. wanting

B. needing

C. liking

D. trying

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Đoạn văn 2

Read the passage carefully, then choose the correct answers.

The scarcity of tigers and African elephants is more and more serious. They are endangered because poachers hunt them in order to sell tiger pelts and elephant ivory.

At least 4,000 elephants are killed each year in order to meet the global demand for ivory, which is used to make carvings, jewelry and other products although it is illegal to sell ivory since 1989 anywhere.

“Americans should be aware that there is still a problem with elephant poaching and loss to the illegal ivory trade,” Ginette Hemley, Fund’s vice president for species conservation, told The Washington Post in September. And so our message is “Don’t buy it, and don’t take that chance”.

A Wildlife Fund report states that the United States seized 8,300 illegal ivory items

between 1995 and 2002. Each week there are about 1,000 ivory auctions, the report said.

As for tigers, their parts are used in traditional Chinese medicine. Tiger bones are used as a pain reliever in traditional medicine. Even tiger’s whiskers are sold because some people in Asia think they are a good-luck charm – like a rabbit’s foot in the United States. “Part of our job is education,” said Professor Dillon. “The other part is law enforcement. So we have more than one strategy.”

Câu 26:

Hunters poach tigers for their _______

A. ivory

B. pelts

C. carving

D. jewelry

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Câu 27:

Which sentence is NOT true?

A. Elephants are hunted for their ivory.

B. It is legal to sell ivory everywhere.

C. There are about 4,000 elephants killed each year.

D. Elephant ivory is used to made jewelry.

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Câu 28:

The word ‘’it’’ in line 8 referred to _______

A. an elephant

B. a tiger

C. tiger pelts

D. elephant ivory

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Câu 29:

The Chinese use parts of the tiger as_______

A. carving

B. jewelry

C. decoration

D. medicine

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Câu 30:

According to Professor Dillon, _______

A. there is only one strategy to solve the problem

B. it is education that can help to solve the problem

C. we need both education and law enforcement to solve the problem

D. only law enforcement can help to solve the problem

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4.6

3272 Đánh giá

50%

40%

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