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1. is known to all,good friends add happiness and value life.

1. As;to句意：眾所周知，好朋友給生活增添快樂和價值。as is known to all 眾所周知;add sth to sth 把……加到……里邊。

題目來源：2015全品作業(yè)本高中英語必修2新課標外研版 > Period One Introduction&Vocabulary and Reading

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Astronauts on shorter shuttle(航天飛機) missions(使命) often work very long days. Tasks are scheduled so tightly that break times are often used to finish the day’s work. This type of schedule is far too demanding for long missions on the International Space Station(ISS) . ISS crew members usually live in space for at least a quarter of a year. They work five days on and two days off to mimic the normal way they do things on the earth as much as possible. Weekends give the crew valuable time to rest and do a few hours of housework. They can communicate with family and friends by e-mail，Internet phone or through private video conference.

While astronauts cannot go to a baseball game or a movie in orbit,there are many familiar activities that they can still enjoy. Before a mission,the family and friends of each ISS crew member put together a collection of family photos,messages，videos and reading materials for the astronauts to look at when they will be floating 370 kilometres above the earth. During the mission,the crew also receive care packages with CDs,books,magazines,photos and letters. And from early 2010，the Internet became available on the ISS,giving astronauts the chance to do some “web surfing(沖浪) ” in their personal time. Besides relaxing with these more common entertainments,astronauts can simply enjoy the experience of living in space.

Many astronauts say that one of the most relaxing things to do in space is to look out the window and stare at the universe and the earth’s vast land mass and oceans.

1. What does the word “mimic” in Paragraph 1 probably mean?

A. Find. B. Copy.

C. Change. D. Lose.

2. Which of the following best describes the families of the astronauts on the ISS?

A. They are caring and thoughtful.

B. They are impatient and annoyed.

C. They are patient and annoyed.

D. They are excited and curious.

3. In the final paragraph,the author shows that astronauts .

A. get more pleasure in space than on the earth

B. find living in space a bit boring and tiring

C. regard space life as common