現(xiàn)在完成時(shí)for和since用法講解學(xué)習(xí)

1、現(xiàn) 在 完 成 時(shí) f o r 和s i n c e 用 法現(xiàn)在完成時(shí)二用法：過(guò)去完成時(shí)表示過(guò)去發(fā)生的動(dòng)作或存在的狀態(tài)一直持續(xù)到現(xiàn)在（包括現(xiàn)在在內(nèi)），常與for和since引導(dǎo)的時(shí)間狀語(yǔ)連用，動(dòng)詞需要用延續(xù)性動(dòng)詞。如：Mr.Green has been in China for 10 years 格林先生來(lái)中國(guó) 10年了）The film has been on for 20 minutes.電影開(kāi)始已經(jīng) 20分鐘了）Si nee 與 for 的區(qū)別：for 后面跟一段時(shí)間 女口： for three days for 2 years等+過(guò)去的時(shí)間點(diǎn)：since 2004Si neel + 一

2、段時(shí)間 ago : since two minutes ago+ 過(guò)去時(shí)的句子：since I came to this school用si nee和for填空：I have kept the booka week , I must return it on time .We have lear ned En glish5 years ago, so we have lear ned it5 years.Miss Li has taught mathsshe came to this school .4.I have had a coldyesterday.The workers have w

3、orked10 hours . They are very tired.Great cha nges have take n place in Chinait was foun ded.7.Our teacher has studied Japa nesethree years.8. She has bee n away from the cityabout ten years.It s about ten yearsshe left the city.短暫性動(dòng)詞的完成時(shí)態(tài)不能和表示一段的時(shí)間狀語(yǔ)連用，當(dāng)它需要與表示一段時(shí)間的時(shí)間狀語(yǔ)連用時(shí)，通常需進(jìn)行轉(zhuǎn)化，見(jiàn)書(shū)119頁(yè)。練習(xí)：一，寫(xiě)出下列動(dòng)詞

4、的過(guò)去式和過(guò)去分詞形式。be -2. come -3.see -4.study -5. take -6 make -7.go -8.have -9earn -10.do-11.stop -12.tell -13.fi nd -14.carry -15.cha nge-二用所給詞的正確形式填空。Is Jack in the classroom ? No , he ) the playgro und for the match.2.0ur life(cha nge) a lot in rece nt years.3.She去)Can ada twice ,its so beautiful.Mary

5、(not come) back yet I m waiting for her.you(be) to Tibet ? - NO, never.There is a new restaura nt ,its said that it開(kāi)業(yè))for no more tha n a week.Hurry up. The film(開(kāi)始)for ten mi nu tes.We在)this school for two years.Alice wont go with you because she(see) the film twice.10.Our En glish teacher ,Mrs. Bl

6、ack ,in our school since 1998.(teach)11.She and I成 為)frie nds since we met in Tan gsha n last year.12.He離開(kāi))home for two years .Two years(be) a long time1.3.She(live) here ever since she was ten.Both of them(be) in Hongkong for ten days.Both of them(come) to Hongkong ten days ago.16. Half an hour(pass) since the train(leave).三句型轉(zhuǎn)換：1.1 have bee n here for about 15 years.youhere?His little dog died four days ago 同義句)His little dogfor four days.His little dog has bee n deadfour days ago.It/four days since his little dogThey bo