2. He ______(explain) that he had been cheated.(受骗)

1.Who first　　 (discover)America.

2.They didn’ t go to bed _____ they finished their homework.(2006.安徽)

　A. until　 B. because C. when　 D. if

单元测试题

1.Look!___some sheep on the hill (2006.湖南)

　A.there have　 B.there has　　　　　　　　　　 C. there is　　 D. there are

6. ____　 7. _　　 8. ___　 9. ___ 10. ___

综合创新

Last night the first episode(一段情节) of the series(连续剧) BACK TO THE PAST　 1　 (be) on Channel 5. It was an interesting science fiction series about a scientist, Professor Spark, and his fantastic(奇异的) time machine. He　 2　 (want) to travel to the future, but something　 3　 (happen), and he　　 4　　 (go) back to the age of the dinasaurs(恐龙). At first, the professor　 5　 (be) very excited. It was an opportunity(机会) for him to study the Jurassic Period(侏罗纪). The Sparks　 6　 (see) that he　 7　 (not have) any food. He　 8　 (not know) how to hunt. how to fish, or how to make a fire. But he　 9　 (have) his Swiss knife, a box of matches, and … his brain. What do you think he　 10　 (do)？

1.____　 2.___　 3.___　 4.__　 5. _____

6.(　 ). He was very excited about _______a picnic.

　A. having B.to have C. have D. to having

5.(　 ) Mary’s parents are strict ____ her.

A.at　 B. in　 C. with　 D. to

4.(　 ) I have learned English ____ 2000

A. since B. for　 C. after　 D. before