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初中英語八種時態(tài)詳解及習(xí)題(編輯修改稿)

2024-09-01 03:47 本頁面
 

【文章內(nèi)容簡介】 letters in English. (用now改寫句子)________________________________________________________They are surfing. (對劃線部分提問)________________________________________________________瞧,那些孩子們玩的真高興!________________________________________________________這些天工人們一直在盡力修補(bǔ)那些壞了的帳篷。________________________________________________________四、過去進(jìn)行時:概念:表示過去某段時間或某一時刻正在發(fā)生或進(jìn)行的行為或動作。時間狀語:at this time yesterday, at that time或以when引導(dǎo)的謂語動詞是一般過去時的時間狀語等?;窘Y(jié)構(gòu):was/were+doing否定形式:was/were + not + doing.一般疑問句:把was或were放于句首。過去進(jìn)行時的用法:表示在過去某時刻正在進(jìn)行或發(fā)生的動作,通常與表過去的時間壯語連用。例如:At this moment yesterday, I was packing for camp.昨天這個時候,我正在收拾東西去露營。表移動的動詞,如e, go, arrive, leave, start, begin, return等詞的過去進(jìn)行時,可以表示過去將要發(fā)生的動作。例如:She told me that she was going to Hainan for her holiday. 她告訴我她將去海南度假。在含有時間壯語從句的復(fù)合句中,表示一個過去的動作發(fā)生時或發(fā)生之后,另一個動作正在進(jìn)行。例如:It was raining when they left the station. 他們離開車站時,正下著雨?!?When I got to the top of the mountain, the sun was shining. 我到達(dá)山頂時,陽光燦爛。在敘述或描寫過去的事情時,過去進(jìn)行時經(jīng)常與其它過去時態(tài),特別時是一般過去時連用。但是過去進(jìn)行時往往是表示背景。例如:One night, he was typing in his study . Suddenly , a man broke into his house and cut off the electricity … .一天晚上,他正在書房里打字。突然,一個人闖進(jìn)屋來,切斷了電源……鞏固練習(xí):Mary ___ a dress when she cut her finger. A. made  B. is making  C. was making  D. makesAs she ___ the newspaper, Granny ___ asleep. A. read;was falling B. was reading; fell C. was reading; was falling D. read;fell五、現(xiàn)在完成時:概念:過去發(fā)生或已經(jīng)完成的動作對現(xiàn)在造成的影響或結(jié)果,或從過去已經(jīng)開始,持續(xù)到現(xiàn)在的動作或狀態(tài)。時間狀語:recently, lately, since…for…,in the past few years, etc.基本結(jié)構(gòu):have/has + done否定形式:have/has + not +d one.一般疑問句:have或has?,F(xiàn)在完成時的用法:表示過去發(fā)生或已經(jīng)完成的動作對現(xiàn)在造成的影響或結(jié)果,常與already, yet, ever, never, just,before 等詞連用。例如:Have you ever cooked at home? 你吃晚飯了嗎?You have already grown much 。表示過去已經(jīng)開始,持續(xù)到現(xiàn)在的動作或狀態(tài),并可能還要延續(xù)。往往和表示一段時間的時間壯語連用,常用的有:for+一段時間;since+過去時間點(diǎn)或從句。(Since 用來說明動作起始時間,for用來說明動作延續(xù)時間長度),提問用How long. 例如:It has been five years since he joined the army .他參軍五年了。 They have learned English for eight years .他們已學(xué)了八年的英語了?,F(xiàn)在完成時需注意的問題:表示短暫性的動詞不能與表示一段時間的壯語連用appear,begin,borrow,lend,buy,close,e,die,fall,find,finish,join,kill,leave,sell,stop等。例如:He has joined the army for five years. (錯誤)He has been in the army for five years.(正確)注意:非延續(xù)性動詞的否定形式可以與表示延續(xù)時間的狀語連用。即動作不發(fā)生的狀態(tài)是可以持續(xù)的。(錯)I have received his letter for a month.(對)I haven39。t received his letter for almost a month. 不能和明確的過去時間壯語連用,如:yesterday,last week,in 1998,two days ago等。have/has been to 和have/has gone to 的區(qū)別: have/has been to have/has gone to 試舉例 : 比較一般過去時與現(xiàn)在完成時 一般過去時表示過去某時發(fā)生的動作或狀態(tài),強(qiáng)調(diào)動作,不和現(xiàn)在發(fā)生聯(lián)系,常與具體的過去時間狀語連用,如yesterday, last week,…ago, in1980, in October, just now等,;現(xiàn)在完成時表示過去發(fā)生的某一動作對現(xiàn)在造成的影響或結(jié)果,強(qiáng)調(diào)的是現(xiàn)在的情況,不能與表過去的時間壯語連用。 I saw this film yesterday. (強(qiáng)調(diào)看的動作發(fā)生過了)I have seen this film. (強(qiáng)調(diào)對現(xiàn)在的影
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