unit 1 tales of unexplained 课时作业(四)
grammar and usage (1)
i. 将括号中的动词用现在完成时或现在完成进行时填空：
（有些动词可以用两种形式）
1. i __________ (write) an essay since two o’clock.
2. —— you look exhausted!
—— yes, i ________ (play) tennis and i ________ (not play) for years, so i’m not used to it.
3. this is the third time you _________ (be) here. what exactly you ______ (come) for now?
4. i __________(travel) a lot in america. (= i know america.)
5. i ___________(read) your book. (= i haven’t finished it.)
6. i ___________(read) your book. (= i’ve finished it.)
7. i __________ (work) all day (and i’m tired out).
8. he __________ (lose) money for years (and will probably continue to lose money).
9. i __________ (know) miss huggins for several years. i ___________(read) her latest novel, but i _____ (not finish) it yet.
10. john ________ (learn) for several years, and at last he _______ (master) the irregular verbs.
ii. 单句改错：
1. i’m living in greece since 1998.
__________________________________________
2. have you had good weather last weekend
__________________________________________
3. who has given you that lovely necklace?
__________________________________________
4. that’s a nice picture. have you painted it yourself?
__________________________________________
5. i haven’t been knowing philip for long.
__________________________________________
6. it’s a long time since didn’t come to see me.
__________________________________________
7. some people think that shakespeare has traveled a lot in germany.
