中考專項復(fù)習(xí)——現(xiàn)在完成時復(fù)習(xí)課件

1、,現(xiàn)在完成時復(fù)習(xí),Review of the Present Perfect Tense Welcome,時態(tài),不同時間發(fā)生的動作，動詞要用不同形式,已學(xué)習(xí)過的時態(tài),1.v原形 2.v+s/es（單三）,am/is/are + v-ing,1.will/shall+v原形 2.am/is/are going to +v原形,1.v-ed（規(guī)則動詞） 2.不規(guī)則動詞,was/were+ v-ing,判斷下列句子的時態(tài),1.She works in a factory. 2.I was doing my homework at this time yesterday. 3.We are going

2、 to have a picnic this Sunday. 4.They held a sports meeting last week. 5.Are you helping your mother .,現(xiàn)在完成時表示到目前為止已經(jīng)完成，并對現(xiàn)在留下某種后果和影響的動作。,現(xiàn)在完成時的構(gòu)成： have/has + 動詞的過去分詞,注：動詞過去分詞的構(gòu)成分為規(guī)則變化和不規(guī)則變化， 規(guī)則變化的動詞過去分詞與過去式是一樣的，不 規(guī)則變化的動詞須特殊記憶。,規(guī)則動詞過去分詞的構(gòu)成,1. 一般在動詞后直接加-ed,構(gòu)成規(guī)則,2. 以不發(fā)音的e結(jié)尾的動詞， 直接加-d,3.末尾只有一個輔音字母的 重讀閉

3、音節(jié)詞，先雙寫這 個輔音字母，再加-ed,4.結(jié)尾是“輔音字母+y”的動詞， 先變“y”為“i”再加-ed,例詞,look looked,play played,live lived,hope hoped,stop stopped,plan planned,study studied,carry carried,寫出下列動詞的過去分詞：,work like cry stay learn,use help finish cook arrive,worked,liked,cried,stayed,learned,used,helped,finished,cooked,arrived,不規(guī)則動詞過去

4、分詞的構(gòu)成,1. 三個主要動詞,is, am be are,was were,been,have/has,had,had,do/does,did,done,2. AAA型 （三者一致）,cut cut cut,let let let,put put put,cost cost cost,read read read,3. ABA型 （過去分詞與原形一致）,come came come,become became become,run ran run,4. ABB型 （過去分詞與過去式一致）,bring brought brought,find found found,hear heard he

5、ard,keep kept kept,make made made,此外還有l(wèi)eave, win, tell, spend, say，meet等等。,5. ABC型 （三者不一致）,eat ate eaten,give gave given,write wrote written,see saw seen,get got gotten,begin began begun,此外還有g(shù)o, take, know, speak, swim等等。,現(xiàn)在完成時的用法：,1. 表示已完成的某一動作對現(xiàn)在造成的影響或結(jié)果,1） 標(biāo)志詞:,already: yet:,多用于陳述句，位于have/has后，有時

6、位于句末。,e.g. I have already finished my homework.,用于疑問句和否定句，位于句尾。,e.g. Have you found your lost book yet ? I havent had breakfast yet.,ever : never:,多用于疑問句，問初次經(jīng)歷。,e.g. Have you ever been to Beijing?,用于否定句，位于have/has后,e.g. He has never argued with other people.,just : before:,多用于陳述句，位于have/has后,e.g. Lu

7、cy has just washed her clothes.,可用于各句式，位于句尾。,e.g. I have read this book before. He hasnt been abroad before. Have you flown to Hainan before?,2）無標(biāo)志詞的：,e.g. He is not feeling well now. He has caught a cold. I have lost the key. I cant go into my room.,2. 表示從過去已經(jīng)開始，持續(xù)到現(xiàn)在的動作 或狀態(tài)。,標(biāo)志詞:,1）for +一段時間 e.g.

8、We have lived in this city for ten years.,2） since +過去點(diǎn)時間 since +一段時間+ago since +從句（從句用一般過去式） e.g. He has worked here since 1990. She has taught in this school since two years ago. We have known each other since we met.,3） so far, once/twice/ three times ,all ones life,e.g. They have learnt 2000 wor

9、ds so far. Tom has seen the film twice. Her father has worked in the factory all his life.,4） in the past +一段時間 during the last +一段時間,e.g. They have built many high buildings in the past three years.,Great changes have taken place in my hometown during the last two years,3. have / has been to have /

10、 has gone to have / has been in,曾經(jīng)去過某地,到某地去了,在某地呆了多長時間,1. A: Wheres Jim, Li Lei? B: He _his school library. 2. The Greens _China for three years. 3. We _the Great Wall twice. Its very beautiful.,has gone to,have been in,have been to,試一試： 1.A: Do you want a pen ? B: No, I dont . I _ already _ (buy) o

11、ne . 2. _ you ever _(be) to Paris? 3.A:Where is your mother ? B: She _ (go) shopping today. 4. I _ ( not finish) the homework yet. 5.Li Lei _ just _ (give) the cakes to Polly. 6. There _(be) great changes in Rugao these years. 7.My father _ (go) to Beijing . He isnt at home . 8 I _never_ (be) to Lon

12、don ?,have,been,Have,bought,has gone,have been,given,has,havent finished,has gone,been,have,翻譯下列句子,她曾經(jīng)去過上海。,She has been to Shanghai before.,他在上海10年了。,He has been in Shanghai for ten years,他去上海了。,He has gone to Shanghai.,.肯定句：主語 have/has+過去分詞其他成分。,現(xiàn)在完成時態(tài)的句式：,.否定句：主語have/has +not+過去分詞其他成分。,3.一般疑問句：Ha

13、ve/Has+主語過去分詞其他成分？,4.特殊疑問句：特殊疑問詞have/has其他成分？,肯定句：I have cleaned my bedroom.,否定句：I havent cleaned my bedroom.,一般疑問句：Have you cleaned your bedroom?,現(xiàn)在完成時和一般過去時的區(qū)別：,現(xiàn)在完成時，強(qiáng)調(diào)這一動作產(chǎn)生的結(jié)果對現(xiàn)在的影響，與現(xiàn)在有關(guān)。 一般過去時，僅僅表示在過去某一時刻曾發(fā)生過這一動作，與現(xiàn)在無關(guān)。,He has studied English for five years.,He studied English for five years.

14、,（學(xué)習(xí)英語已經(jīng)五年了，現(xiàn)在仍然在學(xué)）,（只說明他過去學(xué)過五年英語，但現(xiàn)在不學(xué)了。）,EXERCISE,He _(work) in our school for one year. 2. He _(come) to our school last year/in 2002. 3. They _(cook) the supper already. 4. They _ (cook) the supper half an hour ago.,has worked,came,have cooked,cooked,1. Have you met Mr Li _？ . just . ago .before

15、 . a moment ago,2. The famous writer _ one new book in the past two year . . is writing .was writing .wrote .has written,3.Our country _ a lot so far . Yes . I hope it will be even _ . . has changed ; well . changed ; good . has changed ; better . changed ; better,4.Harry Potter is a very nice film .I_ it twice . . will see . have seen . saw .see,5. These farmers have been to the United States . Rea