题型：语法填空（语篇） 题类：常考题 难易度：困难
人教版（新课程标准）高中英语必修4 Unit 3 A taste of English humour 同步练习1
When China's astronaut Zhai Zhigang carried out the spacewalk on September 27, he was wearing a spacesuit developed by Chinese scientists. Being worth more than 30 million yuan, the Feitian (飞天) spacesuit is not ordinary one.
It （take）Chinese scientists four years to develop it. But what is special about the suit? First Let's take a look at why（astronaut） need to wear spacesuits.
When you visit a world with little or no atmosphere, not(wear) a spacesuit, the following things would happen:
You would become unconscious within 15 seconds because there is no oxygen.
Your blood and body fluids(液体) would “boil” and then “freeze” there is little or no air pressure.
You would receive various types of radiation.
You could(hit) by dust or rock that moves at high speeds.
So, to protect youthese dangers, a spacesuit must:
Have a pressurized atmosphere;
Give you oxygen;
Keep a(n) (comfort) temperature;
Let you see clearly and move easily.
The Feitian suit did all that and what it （do）made it like a mini-spaceship inthe astronaut stayed alive in outer space and carried out tasks.
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