一、根据要求改写句子。
1. I went to Shanghai yesterday. (改为否定句)
I to Shanghai yesterday.
2. Grandmother cooked noodles for us yesterday afternoon. (改为一般疑问句)
Grandmother noodles for you yesterday afternoon?
3. Mr Green didn't go to work by car last week. (改为肯定句)
Mr Green to work by car last week.
4. Mrs White watched a film with her family last night. (对画线部分提问)
Mrs White with her family last night?
5. My sister visited London last month. (改为否定句)
My sister London last month.
6. Helen and her friend made some nice clothes for their dolls. (对画线部分提问)
Helen and her friend for their dolls?
7. We ate a lot of delicious food last Spring Festival. (改为一般疑问句)
you a lot of delicious food last Spring Festival?
8. They were in Paris last Tuesday. (改为一般疑问句，并做肯定回答)
— in Paris last Tuesday?
— Yes, .
9. Frank read an interesting book about history. (改为一般疑问句)
Frank an interesting book about history?
10. He cleaned his room just now. (对画线部分提问)
What he just now?
11. Thomas spent 10 yuan on this book. (改为否定句)
Thomas 10 yuan on this book.
12. My family went to the beach last week. (对画线部分提问)
family last week?

1. didn't go
2. Did, cook
3. went
4. What did, do
5. didn't visit
6. What did, do
7. Did, eat
8. Were they, they were
9. Did, read
10. did, do
11. didn't spend
12. Where did your, go

1. 一般过去时否定句，在动词过去式前加didn't，动词还原为原形go。
2. 一般过去时一般疑问句，借助助动词Did，动词还原为原形cook。
3. 否定句改为肯定句，去掉didn't，动词用过去式went。
4. 对动作提问用What...do，一般过去时借助Did，动词还原为原形do。
5. 一般过去时否定句，在动词过去式前加didn't，动词还原为原形visit。
6. 对动作提问用What...do，一般过去时借助Did，动词还原为原形do。
7. 一般过去时一般疑问句，借助助动词Did，动词还原为原形eat。
8. 含有be动词的一般过去时一般疑问句，将were提前；肯定回答用Yes, they were。
9. 一般过去时一般疑问句，借助助动词Did，动词还原为原形read。
10. 对动作提问用What...do，一般过去时借助Did，动词还原为原形do。
11. 一般过去时否定句，在动词过去式前加didn't，动词还原为原形spend。
12. 对地点提问用Where，一般过去时借助Did，第一人称my改为第二人称your，动词还原为原形go。

二、用所给词的适当形式填空。
1. Lin Tao (sweep) the floor yesterday.
2. Grandma often (have) a rest at noon.
3. Mike (read) in the classroom just now.
4. What (do) people (do) last Christmas?
5. Sometimes the boys (play) basketball at the weekends.
6. I (be) a student in 1999.
7. Lily and Lucy (write) e-mails in the study now.
8. Peter (have) lunch in the classroom just now.
9. Miss Wang (teach) us Art this term.
10. Jim (like) (swim) very much.
11. Listen! The girls (sing) in the music room.
12. — you (have) a good time in London? — Yes.
13. I (live) in Shanghai in 2000.
14. I (go) to Beijing last May Day.
15. Mr Bai (draw) a lot of oil paintings yesterday.
16. Mike (not go) to bed until 12 o'clock last night.
17. I listened but (hear) nothing.
18. How many people (be) there in your class last term?

1. swept
2. has
3. read
4. did; do
5. play
6. was
7. are writing
8. had
9. teaches
10. likes; swimming
11. are singing
12. Did; have
13. lived
14. went
15. drew
16. didn't go
17. heard
18. were

1. 根据时间状语yesterday可知此句是一般过去时，sweep的过去式为swept。
2. often表示经常性动作，用一般现在时，Grandma是第三人称单数，have的第三人称单数形式是has。
3. just now表示刚才，是一般过去时的标志词，read的过去式还是read，读音/red/。
4. last Christmas表示过去时间，助动词用过去式did，后面动词用原形do。
5. Sometimes表示有时，是一般现在时的标志词，the boys是复数，play用原形。
6. in 1999表示过去时间，be动词用过去式，主语I，用was。
7. now表示现在，用现在进行时be + doing，主语是复数，be动词用are，write的现在分词是writing。
8. just now表示刚才，用一般过去时，have的过去式是had。
9. this term表示本学期，用一般现在时，Miss Wang是第三人称单数，teach的第三人称单数形式是teaches。
10. 此句是陈述一般情况，用一般现在时，Jim是第三人称单数，like的第三人称单数形式是likes，like doing sth表示喜欢做某事，swim的动名词是swimming。
11. Listen!表示正在进行，用现在进行时be + doing，主语the girls是复数，be动词用are，sing的现在分词是singing。
12. 根据答语Yes可知是一般过去时，助动词用Did，后面动词用原形have。
13. in 2000表示过去时间，live的过去式是lived。
14. last May Day表示过去时间，go的过去式是went。
15. yesterday表示过去时间，draw的过去式是drew。
16. last night表示过去时间，go是实义动词，否定句用didn't go。
17. and连接并列结构，前面listened是过去式，hear也用过去式heard。
18. last term表示过去时间，people是复数，be动词用were。