UnitTwoGrammarVerb-ingFormasSubjectandObjectI.WarmingUpHaveyoueverseenthesesigns?parking,spitting,littering,smoking-ingformsⅡ.PresentationFindandunderlinethesentencesinthepassagethatuse—ingformsaseitherthesubjectortheobject.Sentencesusingthe--ingform1.Sincethen,findingwaystogrowmorericehasbeenhislifegoal.2.Asayoungman,hesawthegreatneedforincreasingthericeoutput.3.DrYuansearchedforawaytoincreasericeharvestswithoutexpandingtheareaofthefields.4.However,hedoesn’tcareaboutbeingfamous.subjectobjectobjectobject5.Heenjoyslisteningtoviolinmusic,playingmahjong,swimmingandreading.6.Spendingmoneyonhimselforleadingacomfortablelifealsomeansverylittletohim.7.Justdreamingforthings,however,costsnothing.8.DrYuanawokefromhisdreamwiththehopeofproducingakindofricethatcouldfeedmorepeople.objectobjectsubjectsubject重点:Ing做主语的三种情况掌握只能加ing作宾语的动词掌握加ing与不定式作宾语的含义有区别的动词Ing的复合结构二、功能及用法二、功能及用法((作主语))1.作主语.动名词作主语时,句子有三种形式:①动名词直接置于句首主语的位置上。1)捉弄别人是我们万万不能干的._______________________issomethingweshouldneverdo.2)学习新单词对我来说非常重要。____________________isveryimportantforme.3)说比做容易。___________iseasierthandoing.1.作主语.动名词作主语时,句子有三种形式:①动名词直接置于句首主语的位置上。1)捉弄别人是我们万万不能干的._______________________issomethingweshouldneverdo.2)学习新单词对我来说非常重要。____________________isveryimportantforme.3)说比做容易。___________iseasierthandoing.PlayingtricksonothersPlayingtricksonothersLearningnewwordsLearningnewwordsTalkingTalking②用形式主语it,把真正的主语——动名词结构移置句尾。但这种句子形式有一定的限制,作表语的只能是某些形容词或少数名词,如useful,useless,good,fun;nouse,worth等。如:1)It’sworthmakingtheeffort.这事值得去做。2)和夏洛克争辩是没有什么用的。_______________________________withShylock.3)想再解释一次有好处吗?_____________________________________________4)跟你在一起工作是令人愉快的。__________________________________________________二、功能及用法二、功能及用法((作主语))ItisuselesstryingtoargueItisuselesstryingtoargueIsitanygoodtryingtoexplain?Isitanygoodtryingtoexplain?Itispleasantworkingwithyou.Itispleasantworkingwithyou.③在therebe结构中作主语,这种结构的意思相当于“Itisimpossibletodo…”如:1)Thereisnohidingofevilbutnottodoit.若要人不知,除非己莫为。2)这种事开不得玩笑。Hereis________________aboutsuchmatter.3)无法知道他什么时候离开。Therewas_____________whenhewouldleave.二、功能及用法二、功能及用法((作主语))nojokingnojokingnoknowingnoknowing动名词作主语动名词作主语与不定式作主语不定式作主语的区别:动名词表示的动作通常是一个泛指的动作,不定式则通常表示具体的动作。如:1)还是个孩子的时侯,她就觉得探视病人是一种责任,也是一种愉悦。Asachild,shefeltthat_________________wasadutyandapleasure.2)到美国人家里做客对我来说将是一个极好的经历。____________inanAmericanhomewillbeagoodexperienceforme.二、功能及用法二、功能及用法((作主语))visitingsickpeoplevisitingsickpeopleTobeaguestTobeaguest3)一直不做就是作恶。___________________isdoingill.4)他说:“继续这样下去是无用的。”Hesaid,“Togoonlikethisisnouse.”5)我很荣幸被邀请参加这个晚会。It’sanhonorformetobeinvitedtotheparty.在实际运用中,一般两者可以互换,差异不大,但下列情况不能互换.在实际运用中,一般两者可以互换,差异不大,但下列情况不能互换.DoingnothingDoingnothing二、功能及用法...