1、現(xiàn)在完成時態(tài)專講總的來說，兩概念兩注意兩特別構(gòu)成（形式）have/has+過去分詞常縮寫為e s haven=have nothasnt= has notEg. I have already seen this film .Have you seen this film yet?（ 一般疑問句 ）Yes, I have. No, I havent.I haventseen this film yet. （否定句）Li Lei has finished his homework.Has Li Lei finished his homework? （一般疑問句）Yes, he has. No, h

2、e hasn t. Li Lei hasntfinished his homework.（ 否定句）兩概念表示過去已經(jīng)發(fā)生或已經(jīng)完成的某一動作對現(xiàn)在產(chǎn)生的 影響或結(jié)果 （ 強調(diào)對現(xiàn)在造成的影響 ）.標志：already （已經(jīng)），yet （尚未），never ,ever （曾經(jīng)），just （剛剛），during the past（last） three years （在過去的三年里） , how many times, how long,so far （目前） ,etc.Eg. Ive already posted the photos（. 我已經(jīng)把照片寄出去了， 照片不在這里了）Ive s

3、een this film. （現(xiàn)在還記得內(nèi)容）I saw this film last week. （上星期看了，與現(xiàn)在無關(guān)）表示過去已經(jīng)開始 ,一直延續(xù)到現(xiàn)在的動作或狀態(tài).標志：( 1) for + 一段時間eg.I have taught English for ten years.since+時間點或表示過去的時間狀語從句eg.He has lived here since 1998.I have worked in this factory since he came here.since+一段時間 +agoeg. I have known him since 20 years ag

4、o.( 4) ever since (從那時起，自那時以來 )eg.She left school three years ago and has worked as a nurse ever since.她三年前畢業(yè)，從那時起一直當護士We have been friends ever since we met at school/ since 1998.自從我們在學(xué)校認識后，就一直是好朋友兩注意與一段時間連用，只能用延續(xù)性動詞，不能用瞬間動詞Eg. I ve arrived in Beijing for half a year. ( x )I ve been in Beijing for

5、half a year.( v )我們所學(xué)過的瞬間動詞有， come, go , arrive in (at), reach( 到 達), get, leave , finish, end, buy, sell , borrow, die( 死亡) ,marry (嫁，娶) ,begin (start),join( 加入 )我們所學(xué)過的延續(xù)性動詞有，be, have, know(認識)，live,work, teach, learn , study , keep (借),dead (死的)，be married to sb(與某人結(jié)婚 ),be engaged(訂婚),be engaged t

6、o sb(與某 人訂婚 )瞬間動詞與一段時間連用是要用相應(yīng)的延續(xù)性動詞 來代替come(arrive,get to ,reach)be ( in), go (leave)-be away(from)end(finish) -be over ,buyhave ,borrowkeep,die-be dead ,join- be in (be a member of ) begin(start)be on (上映)現(xiàn)在完成時態(tài)是屬于現(xiàn)在的時態(tài)范圍， 不能與表示過去的 時間連用Eg.yesterday, last week, three years ago, in 1986, etc.He(live)

7、 here since 1972.He(live) here in 1972.He(teach) in this school two years ago.He (teach) in this school since two years ago.兩特別在否定句中，瞬間動詞可以與一段時間連用Eg. I haventheard from (seen) you for a long time .我有很長時間沒有收到你的信了（看見你了 ）She hasnt bought anything for two months. 她已經(jīng)有兩個月沒買東西了have /has been to 與 have/has

8、 gone tohave/has been to （曾經(jīng)去過某地，現(xiàn)在已經(jīng)回來了）have/has gone to （去了某地，還沒回來 ）eg.Where is your mother?She has gone to the supermarket.I ve been to Beijing twice.Where has he been ?（他剛才到哪去了， 他現(xiàn)在已經(jīng)回來了 ）Where has he gone ?他到哪兒去了，他不在這里）現(xiàn)在完成時專練練習(xí) ： 用相應(yīng)的延續(xù)性動詞改寫下列句子1.I have come to Beijing for two years and a half.2