初中八種基本時(shí)態(tài)講解及練習(xí)(編輯修改稿)
2025-07-23 08:44 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 y had already finished cleaning the classroom when their teacher came.(當(dāng)老師來(lái)的時(shí)候他們已經(jīng)打掃完了教室)/ The woman had left before he realized she was a cheat.(在他發(fā)覺那個(gè)婦女是個(gè)騙子時(shí)她已經(jīng)走掉了) ③過(guò)去完成時(shí)常用于賓語(yǔ)從句中、after引導(dǎo)的從句中,或者從句是before引導(dǎo)的主句中。 如：After I had put on my shoes and hat,I walked into the darkness.(我穿上鞋子戴上帽子走進(jìn)了黑暗之中)/ He said that he had never seen a kangaroo before.(他說(shuō)他以前從來(lái)沒有見過(guò)袋鼠) (8) 過(guò)去將來(lái)時(shí) 過(guò)去將來(lái)時(shí)表示在過(guò)去預(yù)計(jì)將要發(fā)生的動(dòng)作或存在的狀態(tài)。①過(guò)去將來(lái)時(shí)由“助動(dòng)詞should(第一人稱)或would(第二、三人稱)+動(dòng)詞原形”構(gòu)成。在美國(guó)英語(yǔ)中,過(guò)去將來(lái)時(shí)的助動(dòng)詞一律用“would +動(dòng)詞原形”。 ②過(guò)去將來(lái)時(shí)常由于賓語(yǔ)從句中,時(shí)間狀語(yǔ)有：later, soon, the next (day).③在時(shí)間狀語(yǔ)從句和條件狀語(yǔ)從句中不可以使用過(guò)去將來(lái)時(shí),而應(yīng)該使用一般過(guò)去時(shí)。 如：He promised that he would pay me a lot if I helped him with the project.(他答應(yīng)付給我許多錢如果我?guī)椭隳莻€(gè)項(xiàng)目)/ Every time when he was free,he would sit down and read some books.(以前每次只要他有空他就會(huì)坐下來(lái)看看書)④表示純粹的將來(lái)時(shí)用would或should,表示打算或主觀認(rèn)為的事情用was/were going to (+動(dòng)詞原形)。如：She told me she would be 18 the next month.(她告訴我她下個(gè)月就18歲了)/ She told me that she was going to have a walk with her pet dog.(她告訴我她打算帶她的寵物狗去散步)⑤過(guò)去將來(lái)時(shí)還可以表示一個(gè)過(guò)去經(jīng)常性的動(dòng)作。如：When it rained in the day, he would bring an umbrella with him.(白天下雨時(shí)他會(huì)隨身帶一把雨傘)(9)現(xiàn)在完成進(jìn)行時(shí)：現(xiàn)在完成進(jìn)行時(shí)指一個(gè)從過(guò)去就開始一直延續(xù)到現(xiàn)在并由可能繼續(xù)下去的動(dòng)作,它具有現(xiàn)在完成時(shí)和現(xiàn)在進(jìn)行時(shí)雙重特征,結(jié)構(gòu)是：“have/has + been +動(dòng)詞的現(xiàn)在分詞”。 如：I have been swimming in the cold water for about two hours.(我已經(jīng)在冰冷的水里游了將近兩個(gè)小時(shí))/ How long have you been waiting here?(你在這里一直等了多久？)時(shí)態(tài)綜合練習(xí)（一）1. Sales of CDs have greatly increased since the early 1990s, when people ________ to enjoy the advantages of this new technology. A. beginB. Began C. have begun D. had begun2. Turn on the television or open a magazine and you ________ advertisements showing happy families. A. will often seeB. often see C. are often seeingD. have often seen3. —I hear Jane has gone to the Holy Island for her holiday. —Oh, how nice! Do you know when she ________?A. was leaving B. had left C. has left D. Left4. —What were you doing when Tony phoned you? —I had just finished my work and________ to take a shower. A. had started B. Started C. have started D. was starting5. I ________ you not to move my dictionary—now I can’t find it. A. asked B. Ask C. was asking D. had asked6. —Has Sam finished his homework today? —I have no idea. He ________ it this morning. A. did B. has done C. was doing16
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