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1、外研社八年级上不定式讲解及相关练习一、什么是不定式？1.Oneisnevertoooldtolearn.活到老，学到老。2.Toseeistobelieve.眼见为实。3.Toknowoneselfistrueknowledge.人贵有自知之明。4.Tosayisonethingandtodoisanother.说时容易，做时难。5.Tobeangryistopunishyourselfforanother'ssins.生气是拿别人的过失惩罚自己。6.Tobe,ornottobe.Thisisaquesti
2、on.生存还是死亡，这是个问题。二、动词不定式的结构：to+动词原形三、动词不定式的意义：可是表示将来的行为和目的。如：Iwanttogotothemovies.（表将来的行为）HeplannedtoseetheBeijingOpera.（表将来的行为）Icomeheretovisitmycousins.(表示目的)ToseethePPTmoreclearly,theyturnedoffthelight.(表示目的)四、动词不定式充当什么句子成分？动词不定式一般可以作宾语、宾语补足语、目的状语、后置定语、表
3、语、主语等。1.做宾语Iwanttogotothemovies.HeplannedtoseetheBeijingOpera.Theydecidedtostayathomebecauseitwasraining.Linglingofferedtotakemethere.ItriedtowritelearnEnglishwell.LaoShestartedtoteachChineseinLondonin1924.Teachershopetohelptheirstudentswiththeirstudyasmuc
4、hastheycan.I’dlovetoseethatexcitingmovieagain.后接不定式作宾语的动词还有fail,refuse,need,afford,agree,manage,intend,learn等等2.做宾语补足语：结构：动词+宾语+动词不定式Itallowspeopletogetclosertoanimals.它让人们更近距离接触动物们。Mr.Hantoldusnottomaketoomuchnoise.韩先生告诉我们不要弄出太大声言。有些动词接不定式作宾语补足语时，可以接不带to的
5、不定式，常见的这类动词有：help,make,let,have,hear,feel,see等。Hiswordsmadeeveryonelaugh.I’llhaveTonyshowyouaroundtheschool.我会让托尼带你参观校园。Letmehelpyou!Iheardhimcrynextdoorjustnow.既可接不定式做宾语又可接不定式做宾语补足语动词expect,wouldlike/love,wish,want,…43、做目的状语：WeworkhardtoimproveourEnglish.
6、Icomeheretovisitmycousins.ToseethePPTmoreclearly,theyturnedoffthelight4、做后置定语：Manywildanimalsdon’thaveasafeplacetolive.Theywerelockedintheroomanddidn’thaveanythingtoeat.Ihavenothingtodoattheweekend..5、做表语：主语通常有：job,dream,wish,idea,plan,work,duty…Herjobisto
7、selltickets.6、做主语：Tosellticketsisherjob.adj.+todosth.1.sb.+be+adj.+todosth.表示某人对某件事情的态度。如：“见到你很高兴”pleased,glad,surprised,sorry,sad,excited,lucky...2.sth.+be+adj.+todo表示某一事物的某种属性，如“这些食物很美味”delicious,terrible,dangerous,hard,easy…3.It+be+adj.(forsb.)+todosth.
8、表示做某件事情的性质情况用forsb.necessary,difficult,interesting,important,…4.It+be+adj.(ofsb.)+todosth.表示人的行为特点或品质时用ofsb.nice,good,kind,helpful,clever…Shanghaiisworld-famous.Ithasalonghistory.PeopleinShanghaiaregettingrea
