动词不定式》通用课件.pptVIP

动词不定式的结构肯定：to+V.原或者(to)+V.原否定：not/never+(to)+V.原1)Helikestoreadnovels.2)Isawhimcome.3)Wedecidednottobuythathouse.4)Itisinterestingtoflyakite.5)Pleaselethimnotgothere.

作主语不定式做主语谓语动词用单数Tohearyourvoiceissonice.Itissonicetohearyourvoice.Tostudyhardisveryimportant.Itisveryimportanttostudyhard.注意:不定式作主语时，通常用it作形式主语，把真正的主语放在后面。1、Itis+adj.for/ofsb.todosth.

作主语It+be+adj.+for/ofsb.todosth.for:adj.多为描述不定式行为的特征（important/necessary/interesting等.）of:adj.多为描述主语的品质特征（kind/nice/friendly/wise/foolish等.）Itiseasy__fo_r____hertolearnEnglishwell.Itisclever___o_f____youtosolvetheproblem.

作主语2、Ittakessb.sometimetodosth.我每天花去三个小时完成家庭作业。Ittakesmethreehourstofinishthehomeworkeveryday.Ispendthreehoursfinishingthehomeworkeveryday.

作主语3、Itis+n.(forsb)todosth.ItismypleasuretohelpyouwithyourEnglish.

作主语4、用在谚语中Toseeistobelieve.Tosayiseasy,buttodoishard.

练习for1、Itisnecessary______ustolearntowait.(of/for)of2、Itwascareless______metobreakthecup.（of/for)tobuy3、Ittookthem1,000yuan_________thistable.(buy)tocarry4、Itismypleasure_________theboxforyou.(carry)

练习5、轮到我们打扫教室了。Itisourturn__to__c_l_e_a_n__th__e_c_l_a_s_s_r_o_o_m__._6、Towastetimeistoshortenlife.（翻译成中文）浪费时间就是缩短生命。

作宾语1、动词+todosth.常用动词有：决定学习(有)希望，设法拒绝想假装want/wish/like/wouldlike/hope/plan/try/decide/learn/need/agree/begin/start/forget/remember/manage/seem/主动答应选计划，同意请求帮一帮fail/manage/promise等1、Ihopetofinishittomorrow.2、Sheplanstogoandteachinthecountry.

作宾语2、动词＋疑问词+todo1、我不知道接下来该做什么。Idon’tknow____________next.whattodo2、她不能决定买哪本书。Shecan’tdecide_w_h_i_c_h_b_o_o_k__to__b_u_y__.=Shecan’tdecidewhichbooksheshouldbuy.

作宾语3、主语+谓语+it+adj./n.+todo常见的谓语动词：find,think,consider,feel,make等Thedustyairmakesitdifficulttogetaclearpictureofspace.大气中的尘埃使人难以获取太空的清晰图像。我认为学好英