Blue Origin is a big company in America. It makes rockets(火箭). The rockets work well. These rockets can carry things and people into space. 

Blue Origin is now flying a rocket. It starts and gets into air in Texas. It flies to 100 kilometres away from the ground. Then eight minutes later, it comes back to the ground. 

At 100 kilometres away from the ground, there is no air. When there is no air, the space starts. In the space, gravity does not work there.

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1.Blue Origin makes_______.

A cakes

B cars

C rockets

D ships

解析：选C。细节理解题。根据第一段第一、二句Blue Origin is a big company in America. It makes rockets.可知，故选C。

2.Blue Origin is a ______ .

A rocket

B man

C plane

D company

解析：选D。细节理解题。根据第一段第一句Blue Origin is a big company in America.可知，故选D。

3.Texas is in ______ .

A America

B China

C Canada

D Australia

解析：选A。推理判断题。Blue Origin 制造的火箭在德克萨斯试飞，而根据第1段第一句Blue Origin is a big company in America可知Blue Origin在美国境内，故选A。

4.There is no _______ 100 kilometers away from the ground.

A air

B space

C rockets

D stars

解析：选A。细节理解题。根据第三段第一句At 100 kilometres away from the ground, there is no air.可知，故选A。

5.The underlined word“space”means______ in Chinese.

A 空气

B 空间

C 太空

D 房间

解析：选C。语义猜测题。根据文章最后两句When there is no air, the space starts. In the space, gravity does not work there.可知太空中没有空气，没有重力，所以理解为“太空”恰当，故选C。