英语人教版八年级下册Unit 2 第三课时 .ppt

第三课时SectionA GF 4c Unit2I llhelpcleanupthecityparks GrammarFocus 构成 to do 动词原形 用法 1 用作宾语 v todo Iwanttobuyacomputer Shehopestofindabetterjob Iwishtogowithyou Infinitives 动词不定式 needtodolearntodoagreetodoplantododecidetodorefusetodobegintodostarttodotrytodoforgettodoremembertodoliketodostoptodogoontodo 不定式作宾语 2 用作宾语补足语 v sb todo Sheaskedmetohelpher Theteachertoldhimtocomeontime Edison smothertaughthimtoreadandwrite wantsbtodowishsbtodogetsbtodoordersbtodofindsbtobelikesbtodowouldlikesbtodohelpsbtodo 作宾语补足语不带to的情况 比较 Iheardhersinginginthenextroom Iheardhersinginthenextroom 常见动词有 使役动词 let make have感官动词 see watch hear feel Letmedoit Isawhimcrossthestreet 3 用作状语 adverbial HecametoshowmehisnewCDplayer 目的 Iwenttheretoseemyteacher 目的 ShecamebacktogetherEnglishbook 目的 Theboywastoofrightenedtomove 结果 4 用作主语 1 TobehereatChristmastimeismydream 2 Togoabroadishisdream 3 Tosayiseasy todoisdifficult 可将其用形式主语it来替换 ItismydreamtobehereatChristmastime Itishisdreamtogoabroad Itiseasytosay itisdifficulttodo 5 用作表语 Hisworkistofeedtheanimals Herjobistolookafterthepatients Mywishistobeascientist Givemesomethingtodrink Ihavetwobookstoread Ihavemuchhomeworktodo Heaskedforaroomtolivein Idon thaveapentowritewith 6 用作定语 不定式与被修饰词有动宾关系 若是不及物动词 介词不能省略 7 疑问词who what which where when how加todo可构成不定式短语 在句中可用作主语 宾语 宾语补足语 表语等 Whentostarthasnotbeendecided 主语 Idon tknowwhattodo 宾语 Hecantellyouwheretogetthebook 宾语补足语 Thequestioniswho m toask 表语 比较 Compare Idon tknowwhattodo Idon tknowhowtodoit Idon tknowwhattodoaboutit putoff callup comeupwith cheerup putup handout giveout tomake todo tohelp tospend tovisit tomove 4cCompletethesentenceswithyourownideas Useinfinitives I dliketovolunteer 2 At12 00a m Icalledmyfriend 3 I mverybusybutIcouldhelp 4 Summervacationiscoming andIwant 5 Iwanttotravelalone Myparentstoldme not Pairwork atthefoodbanktohelp thepoorpeople toplay basketballattheplayground tolookafter mylittlesister togotobeachwithmyfriends nottoeatunhealthyfood 找出句子中的不定式 并说出作用 1 Ittakesyoutenminutestogetthere 2 Ihopetoseehimsoon 3 Hiswishistobecomeanartist 4 Peopleeattolive notlivetoeat 状语 表语 宾语 主语 Exercises 5 Ihavealottotellyou 6 It snotrighttobealwaysthinkingofoneself 7 Weoftenseehimplayfootball 定语 主语 宾语补足语 1 I dlike homelesspeople 2 Shedecided foravolunteerafter schoolreadingprogram 3 Youcouldaskhospitals youvisitthekidsandcheerthemup 4 Mariobelievesitcanhelphim hisfuturedreamjob 5 Shevolunteersthereonceaweek kidslearn 6 I mmakingsomesigns aroundtheschool Fillintheblanks tohelp totryout tolet toget tohelp toread toputup 1 Iwant become apolicemanoneday 2 Hewantsthestudents eat well 3 Theteachermadehisstudents come intothemeetingroomontime 4 Theboywasfree go whereheliked 5 Nobodytellshimwhat do next 根据提示完成下列句子 tobecome toeat come togo todo 根据汉语提示补全句子 1 你愿意帮忙打扫城市公园吗 Wouldyoulike thecityparks 2 莉莉 你能帮我洗碗吗 Couldyoupleasehelpme thedishes Lily 3 简没有想出解决这道数学题的好方法 Janedidn t agoodway thismathproblem tohelpcleanup towash comeupwith toworkout 4 他们正计划去拉萨旅行 They re atriptoLassa 5 我们应该努力学习 将来为我们的祖国做重大的贡献 Weshouldstudyhard amajorcommitmentforourcountryinthefuture planningtotake tomake 根据汉语提示完成下列句子 Wemustfindaperson 做这项工作 2 Inmyfamily mymotherisalwaysthefirstone 起床 3 Doyouhave 什么问题要问 4 Pleasetellme 怎样念这个词 todothework togetup anyquestionstoask howtosaythisword 5 Ihaven tdecided 买哪一件