Rocket scientists, however, can have problems just like everyone else. A Washington rocket scientist told about a launch(发射)that was put off many times. Finally, everything seemed right. Mechanical failures had been repaired. The weather was good. The scientists had planned that part of the rocket would fall into the ocean after the launch. All the ships and boats within many kilometers of the danger areas had been warned. But in the last few seconds a small boat entered the area. __12__

　　__13__ One scientist said, “As a child I loved to build the rockets. Now I am a grown­up. I still love to build rockets. And now I get paid for it.”

　　A．He or she makes space travel possible.

　　B．It's dangerous for rocket scientists to build rockets.

　　C．Maybe it has something to do with the mystery of space travel.

　　D．When the work goes well, most rocket scientists enjoy their jobs.

　　E．Have you ever heard of the space travel?

　　F．But an official of the American space agency, NASA, says the expression just grew.

　　G．Once again, the launch was put off.

　　答案　9.F　10.C　11.A　12.G　13.D

　　Ⅲ.短文改错

　　假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中每句中最多有两处错误。每处错误仅涉及一个单词的增加、删除或修改。

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