初中英語人教版八年級下冊現(xiàn)在完成時

1、現(xiàn)在完成時The Present Perfect課前熱身I. The famous writer one new book in the past two years .A . writes B.wrote C.has written2,I the League for 5 years so far.A. joined B. have joined C. have been in3. Mary and Rose friends since they met in 2000.A.have made B.have been C.made D. have become4. Our country a

2、 lot so far .Yes. I hope it will be even.A . has changed ; well B . changed ; good C . has changed ; better5. you your homework yet ?Yes. I it a moment ago.A .Did; do; finished B .Have; done; finished C .Have; done; have finished討論展示1、分組討論,說出以上句子主要用了哪種時態(tài)2、你能講出該時態(tài)的構(gòu)成嗎現(xiàn)在完成時一. 根本結(jié)構(gòu)：助動詞have/has如去分詞done二

3、. 句型：肯定句：主語+have/has如去分詞+其他否認句：主語+have/has+not如去分詞+其他.一般疑問句：Have/Has+主語+過去分詞+其他.簡略答語：Yes,主語+ have/has.筒定No,主語 + haven't/hasn't.借定3、請歸納出現(xiàn)在完成時的主要用法,通過哪些詞語來提示現(xiàn)在完成時用法1. 表示過去發(fā)生或已經(jīng)完成的某一動作對現(xiàn)在造成的影響或結(jié)果.常用的時間狀語：already, yet, so far, never, just, before, recently,I have already lost my key.說明過去某時丟的,現(xiàn)在還

4、未找到.你能舉例嗎2. 表示過去已經(jīng)開始,持續(xù)到現(xiàn)在的動作或狀態(tài)往往和表示一段時間的狀語連用.for+一段時間,since+一段時間I have known him for ten years.I have known him since ten years ago .從開始熟悉到現(xiàn)在延續(xù)了十年你能舉例嗎4、請比較:He has been to the US .He has gone to the US .He has been in the US for three years .5、請看句子： He has come to school for two hours對嗎For和since要用

5、延續(xù)性動詞,如果是短暫性動詞要改為相應(yīng)的延續(xù)性動詞,例如：leave/go- be away come-be here/be inbuy- have,borrow-keepjoin-be in/a member of die-be dead, begin/start- be on finish- be over5、你能用英語說出他們嗎1) 、瑪麗上午七點到了學(xué)校.2) 、她在學(xué)校學(xué)習(xí)兩個小時了.The keys:1) 、Mary got to school at seven .2) 、She has studied at school for two hours.現(xiàn)在完成時與一般過去時的用法比

6、較1、一般過去時表小過去某個時間發(fā)生的事、存在的狀態(tài)或經(jīng)常發(fā)生的動作.說 話的側(cè)重點只在丁陳述一件過去的事情,不強調(diào)對 "現(xiàn)在"產(chǎn)生的影響. 如： He visited Guilin in 1998.他1998年參觀過桂林.(只說明去桂林的時間)2、現(xiàn)在完成時表示動作發(fā)生在過去,對現(xiàn)在造成了影響或產(chǎn)生了結(jié)果.不與確 定的過去時間狀語連用.如：Jill has bought a new computer.吉爾買了一臺新電腦.(著重點是現(xiàn)在有了一臺新電腦)3、兩種時態(tài)的區(qū)分(1) 一般過去時的謂語動詞用過去式,而現(xiàn)在完成時的謂語根本構(gòu)成是"助動詞have /has以去

7、分詞.(2) 一般過去時通常與表示過去的時間狀語連用.如：yesterday, last week, two yearsago, just now, in 2002等；而現(xiàn)2完成時貝U常與 just, already, ever, never 等副詞和 these days, this week, since., for.等表示一段時間的狀語連用.(3)看看以下的幾組句子,有什么區(qū)別 Have you seen the film?(A)Did you see the film?(B)說明你看過這部電影嗎 (A)句強調(diào)的是被問者對劇情是否了解；(B)句強 調(diào)的是看這部電影的動作是否發(fā)生過,并不強

8、調(diào)是否知道其內(nèi)容. How has he done it?(A)How did he do it?(B)說明他是怎么做的這件事(A)句強調(diào)的是他做這件事的方式對現(xiàn)在產(chǎn)生了某種影響；(B)句單純的詢問做這件事的方式. He has lived in Beijing for 8 years.(A)He lived in Beijing for 8 years.(B)說明他在北京住了 8年.(A)句講的是到目前為止他在北京住了 8年,可能還會 繼續(xù)在北京住下去.(B)句講的是他在北京住過8年,現(xiàn)在不在北京了.測評提升1、單項選擇：1) 、Harry Potter is a very nice fil

9、m. I it twice.A . will see B . have seen C . saw D .see2) 、These farmers have been to the United States .Really? When there ?A . will they go B .did they go C . do they goD . have they gone3) 、Zhou Lang already in this school for two years .A . was ; studying B . will ; study C . has ; studiedD. are

10、; studying4) 、His father the Party since 1998 .A .joined B . has joined C . was in D. has been in5) 、一 Do you know him well ? Sure .We friends since ten years ago .A . were B . have been C . have become D . have made6|、He has been to Shanghai, has he ?A . already B .never C .ever D. still7) 、Hurry u

11、p! The play for ten minutes .A . has begun B . had begun C . has been on D. began8) 、 It ten years since he left the army .A . IsB . has been C . Will be D. was9) 、 Miss Green isn't in the office. She to the library.A .has gone B . went C .will go D . has been10) 、My parents Shandong for ten yea

12、rs.A . have been in B . have been to C . have gone to D . have been2、用適當(dāng)?shù)臅r態(tài)填空：1) . She(live) here for ten years .2) . Both of them(come) to Hongkong ten days ago.3) . Half an hour(pass) since the train(leave).4) . Mary(lose) her pen .you(see) it anywhere?5) .you(find) your watch yet?6) . -Are you thirsty?-N