初中現(xiàn)在完成時(shí)講解和練習(xí)-預(yù)覽頁(yè)
【正文】 The film began 30 minutes ago. ——The film __________ for 30 minutes.8. They opened the door an hour ago. —— The door __________ for an hour.9. They closed the door an hour ago. ——The door ___________for an hour.10. He joined the army last year. ——He _____________ a _______ for a year. He _____________ the army for a year. It ____ a year ____ he joined the army. 現(xiàn)在完成時(shí)練習(xí)（二）單項(xiàng)選擇。 have finished 。 finished 。 studied Ｄ. are。 do。 done。 goodＣhas changed better Ｄ. changed。 borrow keep go outbe out beginbe one/arrive/reach/get tobe in stopstoppedstopped , dropdroppeddropped 2 、不規(guī)則動(dòng)詞： AAA型 burst burst burst hurt hurt hurt let let let cast cast cast cost cost cost cut cut cut hit hit hit put put put shut shut shut spread spread spread set set set read read read四點(diǎn)變化規(guī)則： (1)、一般動(dòng)詞，在詞尾直接加“ ed ”?，F(xiàn)在完成時(shí)可表示持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)，動(dòng)詞一般是延續(xù)性的，如live, teach, learn, work, study, know. VI. 比較 have/has been to、have/has gone to 和 have been inhave(has) been to...表示“曾去過某地，已經(jīng)從那里回來(lái)了”，可以和ever、never、twice等連用。I saw this film yesterday.（強(qiáng)調(diào)動(dòng)作發(fā)生的時(shí)間是yesterday 。如：He has been in the Green China for three years.He has been a member of the Green China for three “綠色中國(guó)”已經(jīng)三年了。（結(jié)果：窗戶仍破著）B. 表示過去已經(jīng)開始，持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)，可以和表示從過去某一時(shí)刻延續(xù)到現(xiàn)在（包括“現(xiàn)在”在內(nèi)）的一段時(shí)間的狀語(yǔ)連用,如for+時(shí)間段、since+過去的時(shí)間點(diǎn)、疑問詞how long等。例如：I have already finished my homework. I haven’t finished my homework yet. Have you finished your homework yet?They have left. (他們已經(jīng)離開了,也就是說(shuō)現(xiàn)在他們?nèi)瞬辉谶@里)I have had my lunch. (我已經(jīng)吃過午飯了,也就是說(shuō)我現(xiàn)在不餓)I can’t find my watch now. I think I have already lost it.注意： 1)現(xiàn)在完成時(shí)不能單獨(dú)與過去的時(shí)間狀語(yǔ)連用, 如yesterday, last week, three years ago 等。III. 現(xiàn)在完成時(shí)的時(shí)間狀語(yǔ) 1. ever, never, twice（once…）, so far（到目前為止）, , already（肯定句）, yet（否定，疑問句）, just(剛剛), before（以前）, recently（近來(lái)） 等詞連用+時(shí)間點(diǎn)，for+時(shí)間段 ，in the past/last few years表示短暫時(shí)間動(dòng)作的詞，如:e，go，die，marry，buy等的完成時(shí)不能與for，since等表示一段時(shí)間的詞連用?，F(xiàn)在完成時(shí)I. 定義：。如：I have lived here for more than thirty 。yet常用于否定句和疑問句，并用于句末。（結(jié)果：車子已在門口）Someone has broken the 。 How long have you been here? 你來(lái)這里多久了？ 用相應(yīng)的延續(xù)性動(dòng)詞替換短暫性動(dòng)詞，句中謂語(yǔ)動(dòng)詞用現(xiàn)在完成時(shí)，時(shí)間狀語(yǔ)為“for＋時(shí)間段”或“since＋時(shí)間點(diǎn)”。V. 現(xiàn)在完成時(shí)態(tài)與一般過去時(shí)態(tài)的區(qū)別 1一般過去時(shí)表示過去某時(shí)發(fā)生的動(dòng)作或單純敘述過去的事情，強(qiáng)調(diào)動(dòng)作；現(xiàn)在完成時(shí)為過去發(fā)生的，強(qiáng)調(diào)過去的事情對(duì)現(xiàn)在的影響，強(qiáng)調(diào)的是影響。現(xiàn)在完成時(shí)不與表示過去的時(shí)間狀語(yǔ)連用。 六．過去分詞 1 、規(guī)則動(dòng)詞：規(guī)則動(dòng)詞的過去分詞的構(gòu)成規(guī)則與規(guī)則動(dòng)詞的過去式的構(gòu)成規(guī)則相同?！ tudystudiedstudied ,crycriedcried (4)、重讀閉音節(jié)結(jié)尾，末尾只有一個(gè)輔音字母，先雙寫該輔音字母，再加“ ed ”。要改變動(dòng)詞buyhave leave be away finishbe over openbe open well Ｂchanged 。 finished 。 have finished Ｄ. will。 study Ｃ. has 。 do 。 done 。ll lend you the book , but you can only _____ it for 2 days. A. borrow B. keep C. take How long can I ______ the book? Two weeks. A. borrow B. lend C. get D. keep四、用have/has been to/in, have gone to及go的各種形式填空。 well Ｂ. changed 。 studying Ｂ. will 。 do 。 done 。t in the office . she_______ to the library . gone Ｂ. went go Ｄ. has been
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