九（上）Unit4 Topic3 Section B
（限时训练）
一、词汇
A.根据句意及首字母提示补全单词。
1. Now the spaceships mainly use e________ controls. But they used to be controlled by astronauts.
2. Thanks to the computer t____ ____, many problems can be solved easily.
3. It’s very important for us to d______new ways of drying things.
4. He r______that he must study hard from now on.
5. Nothing is i_____ if you put your heart into it.
B.根据句意，用括号内所给单词的适当形式填空。
1. The policeman advised him ______(take) a bus to go there.
2. A long ladder is used ______(climb) up the building.
3. Scientists make robots_____(serve) our life better.
4. Bill made up his mind ____(catch) up with his classmates in study.
5. Thanks for ______( invite) me.
