最新氮氧化物的监测-盐酸萘乙二胺分光光度法.PPT课件.ppt

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1、氮氧化物的监测-盐酸萘乙二胺分光光度法.Day1as,though引导的让步状语从句Youngas/thoughIam,IalreadyknowwhatcareerIwanttofollow.我虽然年轻，但我已经明白我应该追随什么样的事业。Muchas/thoughIrespecthim,Icannotagreewithhisidea.虽然我很尊重他，但是我不同意他的观点。Child(省略冠词)as/thoughheis,heknowsalotofChinesecharacters.他虽然还是个孩子，却认识了许多汉字。Tryashemight,hecouldn’tsolv

2、etheproblem.尽管他努力了，但是他没有解决问题。Rainingasitis,I'mgoingoutforawalk.天虽然在下雨，我还是要出去散步。week-02积土成山聚溪成渊Day2强调句Hedidn'tgotobeduntilhismothercameback.→Itwasnotuntilhismothercamebackthathewenttobed.Hedidn'tdohishomeworkuntilhisfathercamebackfromwork.→Itwasn'tuntilhisfathercamebackfromworkthathedidhis

3、homework.Onlywhenyounearlylosesomeonedoyoufullyrealizehowmuchyouvaluehim.→Itisonlywhenyounearlylosesomeonethatyoufullyrealizehowmuchyouvaluehim.ItwasbecausethetrafficwasveryheavyduringtherushhourthatIwaslateagain.Whowasitthatyousawinthestreetyesterdayafternoon?week-02积土成山聚溪成渊Day3Notuntil置

4、于句首的倒装Notuntilhefailedintheexamdidherealizethathehadwastedmuchtimeplayingcomputergames.Notuntilhissoncamebackfromschooldidhegotobed.Notuntilallthefishdiedintheriverdidthevillagersrealizehowseriousthepollutionwas.week-02积土成山聚溪成渊Day4when引导的从句when除了用来引导主语从句、宾语从句、时间状语从句、表语从句和定语从句，还有一种用法值得关注，那

5、就是when引导并列分句，意思是“这时突然;就在那时”，强调另一个动作的突然发生。常用于以下句型中：(1).主语+bedoing…when…意思是“正在做某事这时……";(2).主语+beabouttodo…when…;(3).主语+beonthewayto…/thepointof…when…意思是"正要去做某事这时…"(4).主语+hadjustdone…when…;刚刚做完…这时week-02积土成山聚溪成渊例句IwaswalkingalongtheriverwhenIheardadrowningboycryforhelp.我正在河边行走，这时我突然听到一个落水男孩求

6、救。Iwasabouttoleavewhenitbegantorain.我刚要离开，这时下雨了。Ihadjustfinishedmyexampaperwhenthebellrang,announcingtheclasswasover.我刚做完作业，下课铃响了week-02积土成山聚溪成渊Day5while引导的从句while除了有“当/在……时候”的意思外(注意：引导的句子谓语动词只能是延续性动词!)，另外的两层意思也是考查的重点：(1)while=although“尽管”、“虽然”，引导让步状语从句;(2)while的意思是“然而;可是”，常用来表达对比关系。week-

7、02积土成山聚溪成渊例句WhileIadmitthattheproblemisdifficult,Idon'tthinkthattheycan'tbesolved.尽管我承认这个问题很难，但是我并不认为无法解决。WhileIwasangrywithher,Ididn'tlosemytemper.虽然我很生气，但我当时没有对她发脾气。Iearnonly120dollarsaweek,whilesheearns180dollars.我一星期只赚120美元，她却赚180美元。week-02积土成山聚溪成渊Day6where…(地点状