八年級(jí)英語下 時(shí)態(tài)的區(qū)分和練習(xí) (ppt)

時(shí)態(tài)的區(qū)分和練習(xí) 一般現(xiàn)在時(shí)態(tài):1.表示經(jīng)常習(xí)慣性的動(dòng)作,表示現(xiàn)在的狀態(tài),特征和客觀的真理. 句中常有often ,always ,usually等時(shí)間狀語 ,系動(dòng)詞用am ,is ,are 當(dāng)主語不是第三人稱單數(shù)時(shí),謂語動(dòng)詞用動(dòng)詞原形. 當(dāng)主語為第三人稱單數(shù)時(shí)動(dòng)詞+s/es. 一般過去時(shí):表示過去某時(shí)間所發(fā)生的事,存在的狀態(tài)或過去反復(fù)發(fā)生的動(dòng)作. 句中一般有過去的時(shí)間狀語. 系動(dòng)詞用was ,were 謂語動(dòng)詞用過去式. 現(xiàn)在進(jìn)行時(shí):表示說話時(shí)正在進(jìn)行的動(dòng)作或現(xiàn)階段正在進(jìn)行的動(dòng)作,但說話時(shí)不一定正在進(jìn)行. 有時(shí)間狀語now,或者一些動(dòng)詞如:look, listen 謂語動(dòng)詞用am ,is ,are +V-ing 1. My brother and I _(like) singing . 2. What day _ (be ) it yesterday ? 3. The scientists are _(talk). 4.Jim parents _(be) at work last Saturday . 5. We _(have) great fun yesterday likewastalkingwerehad 1. Dont _(sit) here . 2. He _(be) born in the U.S.A. 3. She can _(speak ) English and French. 4. Mr Smith _(read)English every morning ,but this morning he _(not read). sitwasspeakreads doesnt read 10.Who is _(come ) tomorrow. 11.They _(invite ) some friends ,and they _(cook) a big meal . 12.My friend Mark _(visit ) me .We _(talk ) and _(listen) to music . 13.He _(study) on Saturday ,but he _(not work ) on Sunday .He _(walk )to the supermarket and _(shop) all day .cominginvitedcookedvisitedtalkedlistenedstudied didnt workwalkedshopped 14.I_(stay)home and _(watch) TV . 15._you _(have) a good weekend ? Yes ,I _,I_(have ) a great weekend .I just relaxed . 16.I _(not do ) my homework last night . I must _(finish) it now .stayedwatchedDid havedidhad didnt dofinish 17.How many lessons _ you _(have) every d a y . W e _ _ _ _ _ ( h a v e ) s i x a d a y , b u t yesterday .We _(not have ) lessons .We _(go) to the cinema . 18.He _(be ) very friendly to people .I _(like )him . do havehave didnt havewentislike 19.When I was a child ,I _(Like) the pop music . 20.Tina wants _(give) me a jazz CD. 21.He _(sing) very well .Now he _(sing ) in the classroom liked to give sings is singing 動(dòng)詞過去時(shí)的構(gòu)成: 1. 動(dòng)詞后加ed . 2. 以不發(fā)音的e結(jié)尾的詞加d 3. 以輔音字母+y結(jié)尾的改y為i 后加ed . 重讀閉音節(jié)結(jié)尾的雙寫最后一個(gè)字母再加ed 現(xiàn)在分詞的構(gòu)成: 1. 一般直接在動(dòng)詞的后面加ing 2. 以不發(fā)音的e結(jié)尾的去e加ing 3. 以輔音字母+y結(jié)尾的改y為i再加ing . 重讀閉音節(jié)結(jié)尾的雙寫最后一個(gè)字母再加ing