内容正文:
Unit 4 Grammar
【基础性作业】
一、用所给词的适当形式填空
1.He had learned Chinese before he (come) to China.
2.While my mother (cook) dinner, I got home.
3.As soon as he comes tomorrow, I (ask) where he has been.
4.If he doesn't tell me, I (not know) about it.
5.Don't turn off the TV until Today's News (end).
6.While my sister (do) her homework, I was playing the guitar.
7.We (not go) to play until we finish our work.
二、从方框中选择适当的单词并用其正确形式填空
since, when, although, while,
before, until, till, after
8.—How long have you collected stamps?
— I was ten years old.
9.It was raining I arrived at the station.
10.Peter is reading a newspaper his brother is having breakfast.
11.Walk for ten minutes you see a white house.
12.Many students didn't realize the importance of study they left school.
13.You should make a good plan you do anything important.
14. the work was done, we sat down to have a rest.
15. Mr Smith has learned Chinese for only half a year, he can speak it very well.
【拓展性作业】
三、完形填空
Every time I drove down our street, I 16 an old man sitting in his front yard.He looked 17 unhappy.
One day, while I was driving past him with my 18 , I decided to wave (挥手) at him with a lot of excitement.At the beginning when he noticed me waving at him, he looked a bit 19 .Then, I saw his hand go up and he waved back.
“Why did you wave at him?” my daughter asked.
I told her it was just an act of kindness that doesn't 20 anything.It gives both him and me a feeling of joy.My daughter replied that she felt a bit uncomfortable to wave to a stranger (陌生人), but next time she would 21 it as well.
We lived close to the old man, 22 we saw him rather often. 23 we drove by, both of us would start waving at him and, pretty soon, the old man started to 24 us.
One day, my daughter's friend came to visit us and she 25 my daughter that she saw this strange old man near o