1、語法專練：現(xiàn)在完成時1. 定義：表示過去發(fā)生或已經(jīng)完成的某一動作，強(qiáng)調(diào)其對現(xiàn)在造成的影響或結(jié)果。2結(jié)構(gòu)：肯定句：主語+have/has+過去分詞+其他否定句：主語+haven' t/hasn過去分詞+其他一般疑問句：Have/Has+主語+過去分詞+？肯定答語：Yes,主格代詞+have/has.否定答語：No,主格代詞+haven' t/hasn ' t.注意：過去分詞的特殊變化：課本P107,P1083.用法 表示到現(xiàn)在為止已經(jīng)完成或剛剛完成的動作，并對現(xiàn)在有影響。常與already, yet, just,rece ntly, ever, n ever, befor

2、e, in the past 10 years等 表示不確定時間的時間狀語連用。I have returned the book already.He hasn ' t come bagtet.I just (fini sh) lun ch.注意：already用于肯定句中，yet用于疑問句和否定句中。(2)現(xiàn)在完成時表示從過去一直持續(xù)到現(xiàn)在的動作或狀態(tài)。此時，句中謂語動詞通常是延續(xù)性動詞，且常與表示一段時間的時間狀語連用。女口： these days, all this year, recently, fo葉時間段以及since+時間點(diǎn)等等。(unit8內(nèi)容)Zhang Lanalr

3、eadyin the school for two years, (study)Mr Greenin China since ten years ago, (work)注意：瞬間動詞不能和時間段連用.4現(xiàn)在完成時與一般過去時的對比 現(xiàn)在完成時：強(qiáng)調(diào)這一動作與現(xiàn)在的關(guān)系，如對現(xiàn)在產(chǎn)生的結(jié)果、影響等。而一般過去時：純粹在過去發(fā)生的事情。現(xiàn)在完成時past * future|now一般過去時注意:現(xiàn)在完成時不能和表 過去”的時間副詞或短語連用如：yesterday, last yea等。鞏固練習(xí)1. you(clea n) the roomYes, we(do) that already.Wheny

4、ou(do) it? We(do) it an hour ago.2. A：he(fin ish) his work today? B：Not yet.3. A：How many timesyou(come) here? B：Onee.4. Mr Chen(give)up smoking last year.5. The famous writer(write) one new book in the past two years.6. Our country(change)a lot so far.Yes. I hope it will be even(good).7. I(lose) my

5、 pen, and I(look)for it now.8. Harry Potter is a very nice film. I(see)it twice.9. My mother(come) to see me n ext Sun day.10. Kate ( not see) her grand mother's photo before.11. Ialready(see) the film. I(see) it last week.12. So far I(make) quite a few friends here.13. Her mother(become)a docto

6、r jn 1970. Shework) in the hospital since 26 years old.14. He(go) to school on foot every day.15. I Ibll him the news that our class(win) already.僅供個人用于學(xué)習(xí)、研究；不得用于商業(yè)用途For personal use only in study and research; not for commercial use.Nur f u r den pers?nlichen f u r Studien, Forschung, zu kommerziel

7、len Zwecken verwendet werden.Pour l ' e tude et la recherche uniquementa des fins personnelles; pascomraerateslesisto員bko gA.nrogeHKO TOpMenob3ymrnflCH6yHeHuac egoB u HHuefigoHMucno 員 B30BaTbCEb KOMMepqeckuxqe 員 ex.僅供個人用于學(xué)習(xí)、研究；不得用于商業(yè)用途For personal use only in study and research; not for commercial use.Nur f u r den pers?nlichen f u r Studien, Forschung, zu kommerziellen Zwecken verwendet werden.Pour l ' e tude et la recherche uniquementa des fins personnelles; qbas fin