Unit 1 Grammar and usage 高中英语牛津译林版(2020)选择性必修第二册.pptx
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1、过去完成时过去完成时LeadinginLeadinginLeadinginLeadinginReadpartAonpage6andcompletetheTrueorFalseexercise.1.HeregularlyvisitedthelibraryandstudiedEnglishandLawbythenhehadlearntverylittleFrench.2.Bytheageof25,hehadbecomeateacher.3.HeusedthesamebusinessstrategyheemployedattheStLouisPost-Dispatchandsalesofthenew
2、spapermountedupuntilitwasthebestsellingnewspaperinthecountry.FFF过去完成时:had+过去分词doneAExploringtherulesBelowistheshortlifestoryofJosephPulitzer.Findthesentencesthatusethepastperfecttenseandfillintheboxbelow.Thefirstonehasbeendoneforyou.P6.hehadbecomeapublisher.Heusedthesamebusinessstrategyhehademployed
3、attheStLouisPost-Dispatch.Weoftenusethepastperfecttensetotalkaboutsomethingthathappened(1)_(before/after)apasttime.Theverbformofthepastperfecttenseis“(2)_(have/had)done”.WorkingouttherulesP6beforehad过去完成时的基本用法1.表示在过去的某一时间或某一动作之前完成的动作或存在的状态。Before we got to the train station,the train had already lef
4、t.我们到达火车站之前,火车就已经离开了。Before I could say“thank you”,he had run away.我还没来得及说“谢谢”,他就跑开了。2.表示从过去某一时间开始,一直延续到过去的另一个时间的动作,常用的时间状语有by then,by the end of,by the time。By the end of last term,we had learnt 2,000 English words.到上学期期末为止,我们已经学习了2,000个英语单词了。We had learnt English for 8 years by the last year.到去年为止
5、,我们已经学了8年英语了。3.表示愿望、打算等的动词,如hope,want,expect,think,mean,suppose,intend,plan等后接从句时,一般用过去完成时表示本打算实现而未实现的愿望和计划。I had intended to meet him at the airport,but I had an important meeting to attend.我本打算去机场接他,但是我有个重要的会议要参加。I had hoped to take a holiday this year but I was not able to get away.我原打算今年去度假,可是我走
6、不开。(1)It/That was+the first/second+time+that从句,从句谓语常用过去完成时。It was the first time that I had visited the Great Wall.这是我第一次参观长城。(2)It was+一段时间+since从句,从句谓语用过去完成时。It was three years since he had joined the army.他参军三年了。过去完成时用于一些固定句型(3)在句型Hardly/Scarcelywhen和 No soonerthan中,主句常用过去完成时,从句用一般过去时,表示“一就”。Hard
7、ly had he got into his big office when the telephone rang.他刚进入他的大办公室,电话铃就响了。No sooner had he arrived than he was asked to leave again.他刚到就再次被要求离开。当当nosooner/hardly否定副词置于句首,主句否定副词置于句首,主句部分倒装部分倒装,从句,从句语序正常。语序正常。BApplyingtherulesBApplyingtherules1.(2020浙江)Byabout6000BC,people61._(discover)thebestcropst
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