7. are -- is

6. 正确

5. like -- likes

4. don't -- doesn't

3. are -- is

2. is -- are

1. teacher -- teachers

Albert Einstein was from a Jewish family. He was born in German.　 1.____

When he was a boy, he liked to ask questions.

By the time he was fourteen years old, he learned advanced　　　　 2.____

mathematics all by himself. By then he had decided to become a　　 3.____

physicist and devoting himself to abstract research. His family was　 4.____

not rich, so his parents managed to send him to a technical school　　 5.____

and later the Federal Institute of Technology in Switzerland. After　 6._____

the graduation, he began to teach. Later he worked in a government　 7._____

office. Then with the money he saving, he continued his studies　　 8._____

at the University of Zurich. In 1905 he got a doctor's degree.

It was at that time when he began the research and studies　　　　　 9.____

which lead to his famous theory of Relativity.　　　　　　　　　 10.____

B级　 综合短文改错

As Einstein's theory proved correctly, he had gained world fame　　 1.____

by 1914.The First World War stopped his work and make him　　　 　2.____

suffer deeply. In postwar, honors was given to him. He won the　　　 3.____

Nobel Prize in 1921.Berlin held a public celebration for his fiftieth　 4.____

birthday, but he didn't attend it because of he was a shy man. When　 5.___

Hitler came to power, Einstein found the doors of study closing to　　 6.____

him. He lost everything, even his German citizenship.

He was forced flee Germany. It was in Britain that he received　　　 7.____

a invitation from the United States. In 1940 Einstein became　　　 　8.____

an America citizen. He lived the rest of his life in the United States.　 9.____

Except his work in physics, he spent much time working for　　　　 10.___

human rights and progress.

答案：改错阶梯训练

10. Great changes have been taken place in our hometown since 1978.

9. If you work hard, you will be successful in time.