[单项选择]Another thing an astronaut has to learn about is eating in space. Food is weightless, just as men are.
Food for space has to be packed in special ways. Some of it goes into tubes that a man can squeeze into his mouth. Bite-sized cookies are packed in plastic.
There is a good reason for covering each bite. The plastic keeps pieces of food from travelling in the spaceship. On the earth very small pieces of food would simply fall to the floor. But gravity doesn’ t pull them to the floor when they are out of the plastic in a spaceship. (78) They move here and there and can get into a man’ s eyes or into the spaceship’ s instruments. If any of the instruments is blocked, the astronauts may have trouble getting safely home.
As astronauts travel on longer space trips, he must take time to sleep. An astronaut can fit himself to his seat with a kind of seat belt. Or, if he wants to, he can sleep in a sleeping bag which is fixed in place under his seat. But be careful he mu
A. Because small pieces of food would fall down to the floor.
B. Because weightless pieces of food might make trouble when they travel around.
C. Because they haven’ t enough food for longer trips.
D. Because astronauts don’ t want to waste foo

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[单项选择]Another thing an astronaut has to learn about is eating in space. Food is weightless, just as men are.
Food for space has to be packed in special ways. Some of it goes into tubes that a man can squeeze into his mouth. Bite-sized cookies are packed in plastic.
There is a good reason for covering each bite. The plastic keeps pieces of food from travelling in the spaceship. On the earth very small pieces of food would simply fall to the floor. But gravity doesn’ t pull them to the floor when they are out of the plastic in a spaceship. (78) They move here and there and can get into a man’ s eyes or into the spaceship’ s instruments. If any of the instruments is blocked, the astronauts may have trouble getting safely home.
As astronauts travel on longer space trips, he must take time to sleep. An astronaut can fit himself to his seat with a kind of seat belt. Or, if he wants to, he can sleep in a sleeping bag which is fixed in place under his seat. But be careful he mu
A. walk just as they do on the earth
B. not eat anything because it’ s dangerous
C. control the spaceship when they are sleeping
D. not litter small things or it will make trouble

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[单项选择]Passage 2

Another thing an astronaut has to learn about is eating in space. Food is weightless, just as men are.
Food for space has to be packed in special ways. Some of it goes into tubes that a man can squeeze into his mouth. Bite-sized cookies are packed in plastic.
There is a good reason for covering each bite. The plastic keeps pieces of food from travelling in the spaceship. On the earth very small pieces of food would simply fall to the floor. But gravity doesn’ t pull them to the floor when they are out of the plastic in a spaceship. (78) They move here and there and can get into a man’ s eyes or into the spaceship’ s instruments. If any of the instruments is blocked, the astronauts may have trouble getting safely home.
As astronauts travel on longer space trips, he must take time to sleep. An astronaut can fit himsel
A. Because small pieces of food would fall down to the floor.
B. Because weightless pieces of food might make trouble when they travel around.
C. Because they haven’ t enough food for longer trips.
D. Because astronauts don’ t want to waste food.

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[填空题]What will they learn They will learn about ______.

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[单项选择]What can we learn about Alice
A. She didn’t go to the interview.
B. She succeeded in the interview.
C. She forgot about the interview.
D. She was too nervous in the interview.

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[单项选择]What do we learn about Mary
A. That Mary is going to Hawaii.
B. That Mary has traveled all over the world.
C. That Mary likes postcards.
D. That Mary is going on vacation.

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[单项选择]

What do you learn about Tim
A. He knows little about computers,
B. He is good at repairing things,
C. He is willing to help others.
D. He is an auto repair man.

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