阅读下列材料，从每题所给的A、B、C、D四个选项中选出最佳选项。

Many people may wonder what the three Chinese astronauts’ life was like when working in space. In fact, they did many of the things as we do on Earth.

They brush their teeth, wash their hair and go to the bathroom. However, because of the microgravity（失重）environment, they take care of themselves in different ways. They wash their hair by using the norinse shampoo to get it clean because there are no real showers in the spaceship.

Astronauts eat three meals a day: breakfast, lunch and dinner. But how much they eat depends on the astronauts. A small woman astronaut often needs only about 1,900 calories（卡路里）a day, while a large man requires about 3,200 calories. So there are many kinds of foods ready, such as fruits, nuts, chicken, beef and seafood. They can also drink coffee, tea and orange juice.

Astronauts can have much fun, too. They look out of the window, enjoying the wonderful sunsets and sunrises which happen every 45 minutes. Very often, they play with their food or even jokes on their workmates. Believe it or not, astronauts can even spend weekends, when they can watch movies, play music, read books and talk to their families.

After a long day at work, ________. Just like on Earth, an astronaut goes to bed at a certain time, then wakes up and prepares for work again. But there are a few differences. Astronauts have to sleep in sleeping bags in special cabins（柜子）. Generally, astronauts are planned to have eight hours of sleep. Like on Earth, they may wake up in the middle of their sleep to use the toilet. And astronauts also have dreams.

As for Wang Yaping, she had another experience—preparing for lessons for the Chinese students far down on Earth.

（1）The passage mainly talks about ________.

A．	how astronauts work in space	B．	what it is like inside a spaceship
C．	what kind of people can be astronauts	D．	astronauts’ daily life in the spaceship

（2）From the passage we can learn that astronauts ________.

A．	have to take showers every two days	B．	are not allowed to play jokes in space
C．	can have many kinds of foods for their meals	D．	seldom have dreams when they sleep in space

（3）Which of the following can be put in the ________ in Paragraph 5?

A．	it is time to make a phone call	B．	reading is what an astronaut needs
C．	listening to music sounds like a good idea	D．	nothing is better than a good night’s sleep

（4）What was Wang Yaping’s special experience in space?

A．	Making different kinds of foods.	B．	Taking care of the other astronauts.
C．	Writing a report about space travel.	D．	Giving a lesson to students on Earth.