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接(while只接doing)。 表示過(guò)去將要發(fā)生的動(dòng)作。:at this time yesterday, at that time或以when引導(dǎo)的謂語(yǔ)動(dòng)詞是一般過(guò)去時(shí)的時(shí)間狀語(yǔ)等。 :主+be(was/were)+doing :主+be(was/were) + not + doing. :把was或were放于句首。特殊疑問(wèn)句:特殊疑問(wèn)詞+一般疑問(wèn)句 :At that time she was working in a PLA unit. When he came in, I was reading a newspaper. 五、 現(xiàn)在完成時(shí): :強(qiáng)調(diào)動(dòng)作是過(guò)去發(fā)生的 強(qiáng)調(diào)對(duì)現(xiàn)在的影響或結(jié)果 在過(guò)去不確定的時(shí)間里發(fā)生的動(dòng)作,但是結(jié)果對(duì)現(xiàn)在有影響。 :recently, lately, since…for…,in the past few years, etc. 注意:①for+過(guò)去時(shí)間段 ②since+過(guò)去一個(gè)時(shí)間點(diǎn)(譯為:自從……以來(lái)) ③since+時(shí)段+ago (④since+從句(過(guò)去時(shí)) ⑤It is+時(shí)段+since+從句(過(guò)去時(shí)))時(shí)間動(dòng)詞轉(zhuǎn)換延續(xù)動(dòng)詞:borrow(keep),buy(have),die(be dead),finish(be over),Start(be on),leave(be away)be+瞬間動(dòng)詞成為延續(xù)動(dòng)詞:主+ have/has + V過(guò)去分詞:主+ have/has + not +d one. :have或has提前。:I39。ve written an article. It has been raining these days. 六、 過(guò)去