英语：必修4_Unit2_Working_the_land-Learning_about_language课件(新人教版).ppt

《英语：必修4_Unit2_Working_the_land-Learning_about_language课件(新人教版).ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit2WorkingthelandLearningaboutlanguage1.Findthewordorphrasefromthetextforeachofthesemeaning._______brown(skin)fromspendingtoomuchtimeinthesun._______tomakesomethingorsomebodyfreeof_______tobecomelargerinsize,numberoramount_______tomakeinformationandideasknowntomanypeople_____________wo

2、uldpreferto_______totryextremelyhardtoachievesomethingsunburntrid…ofexpandcirculateWouldratherstruggle_______tosendthingstoforeigncountriesforsale___________pleasedbyhavingwhatonewantsorneeds_______toprovidewiththingsnecessaryforacertainpurpose_______plantsgrowninlargeamountsbyfarmers___

3、____becauseofexportSatisfiedwithequipcropThankstoAnswerkeyforEx2:information:statistics;world:globeStrong:super;races:nationalitiesNothavingenoughfood:hunger;sickness:diseaseAsmallSoutheastAsiancountry:Vietnamjobs:occupationsOpenconditions:freedomsoldandsentabroad:exportedKeystoEx3.Decad

4、e,struggle,expanding,Equipped,output,grain,crops,battles,disturbingUsefulstructure(30m)Theuseofthe-ingformThe–ingformastheSubject＆Object1．作主语动名词作主语时，句子有两种形式：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.Playingtricksonothersissomethingweshouldneverdo．2)学习新单词对我来说非常重要。Learningnewwordsisveryimportantfor

5、me．3)说比做容易。Talkingiseasierthandoing.②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：和夏洛克争辩是没有什么用的。ItisuselesstryingtoarguewithShylock．这事值得去做。It’sworthmakingtheeffort．想再解释一次有好处吗?Isitanygoodtryingtoexplain?跟你在一起工作是令人愉快的。Itispleasantworking

6、withyou．③在therebe结构中作主语，这种结构的意思相当于“Itisimpossibletodo…”。例如：若要人不知，除非己莫为。Thereisnohidingofevilbutnottodoit．这种事开不得玩笑。Hereisnojokingaboutsuchmatter.无法知道他什么时候离开Therewasnoknowingwhenhewouldleave.动名词与不定式做主语时的比较：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：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，shefelttha

7、tvisitingsickpeoplewasadutyandapleasure．到美国人家里做客对我来说将是一个极好的经历。BeingaguestinanAmericanhomewillbeagoodexperienceforme.一直不做就是作恶。Doingnothingisdoingill．他说：“继续这样下去是无用的。”Hesaid，“Togoonlikethisisnouse．”我很荣幸被邀请参加这个晚会。It’sanhonorformetobeinvitedtotheparty．归纳：常用-ing形式作主语的句型有：It+be+