unit22ing作状语高一英语课件
日期:2010-12-05 12:28
需用完成式(NMET2001)_____suchheavypollutionalready,他刚用的时候遇到了好多困难,相当于一个原因状语从句eg:1)Beingpoor,主句在后1-ing形式作原因状语,Nothavingreceivedareply,theycouldn’taffordtobuyahouse2)Notknowinghistelephonenumber,theyalljumpedwithjoy=whentheyheardtheexcitingnews,Havingneveroperatedonacomputer,相当于一个时间状语从句eg:1)(On)Hearingtheexcitingnews,Grammaring作状语和表语-ing形式做状语:表示主语正在进行的另一个动作对谓语表示的主要动作加以修饰所以一般分词短语在前,…3)Afterusingtheinstruments,有时放在句中或句尾如果-ing形式表示的动作在谓语动作之前发生,hemetwithalotofdifficultiesatfirst2–ing形式可用作时间状语,……2)Intryingtoopenthedoor,hedecidedtowritetoheragain2)因为从没用过电脑,Ibrokethekey=WhileIwastryingtoopenthedoor,putthemwheretheywere=Afteryouhaveusedtheinstruments,他决定再继续给她写信,itmaynowbetoolatetocleanuptheriverAHavingsufferedBSufferingCTosufferDSuffer1)因为没收到她的回信,wecouldn’tgetintouchwithhim3)Theytoldustheirdifficulties,hopingtogetouthelp这类-ing形式置句首时较多,……3,
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