8B UNIt 1 Grammar

regular: v.+ed e.g chang— changed—changed clean—cleaned—cleaned liAAA ABB ABC
original cost read meet catch ride speak begin drink eat
THANK YOU
8B Unit1 Grammar
2010.4.19
Look and think
1.I have just eaten it .
2.You have changed too.
Present perfect tense
现在完成时
现在完成时的构成
助动词have/ has+p.p(过去 分词)
forms of p.p
动 词 填 空：
Have cleaned 1._____ you already________ (clean) the room?
have done Yes. we __________(do) that already. seen Has 2.______ he ______(see) this film yet? Yes. Have been 3. _____you ever ______(be) there many times?
二.表示从过去某一时刻开始并一直延 续到现在的动作或状态,但动作或状 态可能仍在继续。
She has lived here since she was born.
I have taught English for 26 years.
现在完成时的基本句型
①肯定形式。主语+ have/has+ 过去分词+其它e.g. I have done my homework She has gone to her school. ②否定形式。主语+ have/has+ not+过去分词+… （在助动词have/has后+not，可缩写为 haven’t/hasn’t）e.g. I haven’t done my homework. She hasn’t gone to her school.

Have you……? 疑问 Has he……?
按要求进行句型转换
1. He has already finished his homework.(一 般问句，并作肯定、否定回答) Has he finished his homework yet ? Yes, he has. No, he hasn’t. /Not yet. 2. I have never been to Beijing before.(一般 问句) Have you ever been to Beijing before? 3. They have learned around five units.(提问)
kept
borrow
have/has kept
The film has begun for 10 minutes.
been on
begin
have/has been on
The concert has finished for half an hour.
been over
finish
have/has been over
有些动词不能和for, since, how long 等连用
• He has bought the book. • He has bought the book for a week. • He has had the book for a week.
She has bought the computer for two years.
15. ______ you _______ (read) today’s newspaper yet? 16. They _____already_____(do) their homework. But they don’t know what_____ (do) next. 17. ---____ you _____ (see) the film last night? ---No, I ___________ (see) it for several times. 18. She ____________ (be) ill for three days. 19. My father ___________ ( buy) a book for me yesterday. He____ already _________(pay) fifty yuan for it. 20. She____________ (not read) this book before. 21. ____ you ever __________ (travel) on a train before? 22. --- ____ Wei Hua _____ (come) yet? ---Yes. She_______ (come) already. She ______ (come) just now. 23. ---How long _____you __________(learn) English? ---For more than two years.

Task6: Finish Part C on page 14
M: ________ (see) any Have you ________ seen films recently, Sandy? S: No, I haven’t. What about you? M: Well, I ________ saw (see) one last Saturday.
注:不规则动词见书上122页不规则动词表.
Task4: Finish Part A on page 14
1 borrow borrowed 2 hope 3 make 4 get 5 plan 6 cry hoped made got planned cried 7 send sent
8 watch
2. I _______________ haven't finished (not finish) the work yet.
3. Have _____ you _______ known (know) him since then?
5. build___________6. choose___________ built chosen 7. cost____________8. do_______________ done cost eaten 9. drink___________10. eat______________ drunk driven 11. drive__________12. fall______________ fallen 13. fly____________14. forget____________ forgotten flown
Most verbs + ed

Key words
yet for
ever
never since
have A: How long ______ taught you ________ in this school? (teach ) B: For 6 years.
Key words
yet for just
ever
never since
ever
never since so far
already
up to now in his life
in the past 10 years lately recently
(ever) since then
has lived He ___________ in this city ever since then. (live )
up to now in his life
in the past 10 years
has done He __________ a lot of good things in his life. (do )
Key words
yet for just before
ever
never since so far
比较下列时态
名称 时间
1.v原形 原形
动词形式
2.v+s/es am/is/are+v-ing 1.will/shall+v原形 原形 2.am/is/are going to +v原形 原形 1.v-ed（规则动词） （规则动词） 2.不规则动词 不规则动词 was/were+v-ing
平时， 一般现在时 平时，经常 现在进行时 正在进行
3.He _________basketball at 4:00 p.m. yesterday. was playing