阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入（1个词）或使用括号中词语的正确形式填空。
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 you____these 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 in____the astronaut stayed alive in outer space and carried out tasks.
