题目内容：

    Eating in space is different from eating on the earth. The food that astronauts carry with them does not look like the food you eat. Some food is carried in closed bags. It is cooked and frozen before the astronauts get it. All the water is removed（分离开）from the food. In the spaceship，the astronaut puts the water back. He “ shoots ” hot or cold water into the food bag with a special gun. He eats the food that come in bite sizes. The astronauts puts a whole piece in his mouth at once. There can be no crumbs（碎屑）. Crumbs would float around the spaceship and get in the way. Meat and cake often come in bite sized pieces.

Astronauts cannot drink water from open cups. The water would float in drops in the air. The water is put in the special gun. The astronaut shoots the water into his mouth.

1.Astronauts put________ that they carry with them in close bag.

A.the clothes B.some flowers C.the food D.some stones

2.The passage doesn't say this, but from what we have read, we can tell that_______.

A.astronauts cannot eat anything in spaceship

B.astronauts cannot drink water in spaceship

C.astronauts cannot drink water in the usual way in a spaceship

D.astronauts must learn many new and different things

3.In the spaceship，astronauts put the water ______.

A.in a bottle B.in some bags C.back D.front

4.—How do the astronauts drink the water? — ________.

A.They shoot the water into their mouth with a special gun

B.They drink the water with a usual cup

C.They drink the water from an open cup

D.They often drink the water with their hands

5.The main idea of the passage is that _________.

A.astronauts eat less food in space than on the earth

B.astronauts get hungrier and thirstier in space than on the earth

C.eating and drinking in space is different from that on the earth

D.there is no enough food and water for astronauts