八年级英语下册Unit4AgoodreadP3Grammar牛津版.ppt

Grammar,Unit4Agoodread,handhandinandsoonreviewreturnontimerenew,vi.交；递，给上交，递交等等n.评论vt.归还准时vt.续借；更新；重新开始,Wordsandphrasesreview,Tolearntousequestionwords+to-infinitivesTolearntousemustandhaveto,Objectives,Lookatthefollowingsentences.,1.Somedogsjustdontknowhowtohavefun.(七年级上册U4)2.Imthinkingaboutwhattowear.(七年级上册U8)3.Iwasjustwonderinghowtospendthemorning(新概念2L68)4.Imustgotothegreengrocers.(新概念1L79),5.Hehasabadcold,Mr.Williams,sohemuststayinbedforaweek.(新概念1L61)6.Eddie,Ithinkwehavetogoupagain.(七年级下册U4)7.Wedonthavetofeedhermuch.(七年级下册U8)8.Doyouhavetowateritnow?(新概念1L125),9.Haveyoudecidedwhattodowiththesebooks,Hobo?(P48)10.Ihavetousethemtoreachtheboxonthefridge.(P48)11.Ididnotknowwhattosayeither.(P51)12.“Imustrunawayfromthem,”Ithought,butIdidnotknowhowtogetaway.(P51),Idontknowwhat_next.A.willdoB.doingC.doD.todoDowehavetofinishourhomeworkthisafternoon?Yes,you_.A.mustB.canC.mayD.need,疑问词包括疑问代词who,what,which及疑问副词when,how,where等。常和“疑问词+动词不定式”结构连用的动词和动词短语有：tell,show,think,learn,know,wonder,decide,remember,forget,understand,see,hear,ask,advise,explain,findout等。,Usingquestionwords+to-infinitives,1.V+“疑问词+todo”结构作动词的宾语。2.V+n.+“疑问词+todo”3.Beadj.(sure/clear)+“疑问词+todo”4.V+“疑问词+n.+todo”5.V+“疑问词+todo+n./prep.”注:whytodo,那位年轻女子不知道怎么办。Theyoungwomandoesntknowwhattodo.我不知道说什么。Idontknowwhattosay.我们必须弄懂如何使用这机器。Wemustknowhowtousethemachine.我们想要学习如何写剧本。Wewanttolearnhowtowriteplays.,1.V+“疑问词+todo”结构作动词的宾语,Theteachertoldthestudentshowtodotheexperiment.老师告诉学生如何做实验。Canyoushowmehowtomakeapaperboat?你能给我演示怎样做一只纸船吗？,有些动词，如advise,ask,show,teach,tell等，其后可以接双宾语。,2.V+n.+“疑问词+todo”,3.Beadj.(sure/clear)+“疑问词+todo”,在“疑问词+动词不定式”结构前，有时也可以是如sure,clear等的形容词。Iamnotsurewhichwaytotake.我不确定走哪条路。,4.V+“疑问词+n.+todo”,有些疑问词，如what,which,whose,howmany,howmuch等，其后可以先接一个名词，再接动词不定式。Idontknowwhichtopictochoose.我不知道选哪个题目。,“疑问词+动词不定式”结构在句中还可以作主语和表语。Howtousethemachineisaquestion.（作主语）Thequestioniswhentogothere.（作表语）,5.V+“疑问词+todo+n./prep.”,“疑问词+动词不定式”作宾语时，相当于一个由该疑问词引导的宾语从句。Excuseme.Canyoutellmehowtogettothebookshop?=Excuseme.CanyoutellmehowIcangettothebookshop?,注意：所有疑问词中，只有why不可以与动词不定式连用。,Timeforreflection,不定式可以和疑问代词who,what,which及疑问副词when,how,where等连用，构成不定式短语，在句子中作主语、宾语、表语等。must表示主观的义务和必要，意思是“必须，得，要”，否定形式是mustnot;must还可以表示肯定推测，意思是“一定”。haveto表示一种客观的需要，意思是“不得不”，否定形式是donothaveto。,1.ImgoingonafieldtripbutIhaventdecided_.(2007河南)A.whattodoB.todowhatC.wheretogoD.togowhere2.Excuseme.Wouldyoupleasetellme_buyadigitalcamera?(2007安徽)A.whattoB.wheretoC.whatIcanD.wherecanI,I.单项选择。,3.Thisphysicsproblemistoodifficult.Canyoushowme_,WangLin?Sure.(2008陕西)A.whattoworkitoutB.whattoworkoutitC.howtoworkitoutD.howtoworkoutit,4.WeneedanewleaderforourHelpingHandsClub,butIdontknow_.WhynotMary?Sheisalwayswillingtohelpothers.(2011江苏南通)A.whattochooseB.howtochooseC.whentochooseD.whotochoose,5.Themathproblemissohard.Ireallydontknow_.(2012甘肃鸡西)A.howtodoitB.howtodoC.whattodoit6.Excuseme.Couldyoutellme_gettothenearestpostoffice?Sorry,Iamnewhere.(2013山东威海)A.howcanIB.howIcouldC.howtoD.whatIcan,7.Excuseme.Couldyoupleasetellme_mycar?Sure.Parkitrighthere.Illhelpyou.(2013山东青岛)A.howtostopB.wheretoparkC.wheretostopD.whentopark8._Iswimhere?Imsorry.Children_swimalonehere.(2012广东)A.Must;cantB.May;mustC.Can;mustntD.Cant;can,WhenIgointotheclothesshop,Ialwayscantdecide_onetobuy.2.Mygrandfatherdoesntknow_touseacomputer.3.-Willyoupleaseshowme_todriveacar?-Yes,ofcourse.Nowletmetellyou_todofirst.4.IwilltellLucy_and_tomeet.,which,how,how,what,when,where,II.选用how,which,what,when,where填空。,Andydoesntknow_.,whattowear,III.看图完成句子。,同意句转换:1.Gulliverdidntknowwherehecouldfindotherpeople.2.Gulliverwonderedwhohecouldaskforhelp.3.Gulliverdidntknowhowhecouldbreaktheropes.4.Gulliverfoundoutwhathecoulddowiththetinypeople.5.GulliverdecidedwhenheshouldleaveLiliput.,Milliecantdecide_.,whichbooktobuy,Theydontknow_tothestation.,howtogo,Idontknowhow_fromalibrary.,toborrowbooks,IV.翻译下列句子。,1.Haveyoudecided_(怎样度假)?2.Idontknow_(在会上说什么).3.Canyoutellme_(在哪里能买到这本书)?,yourholiday,howtospend,whattosayatthemeeting,wheretobuythisbook,Preview,TopreviewIntegratedskillsonPages57and58Tolearntoborrowbooksfromalibrary,1.ReviewtheGrammar.2.FinishtheexercisesonPages55-56.,Homework,Usingmustandhaveto,must与haveto是两个常用的情态动词，两词后面都接动词原形。在使用时，应注意两词间的差别。must表示主语“有义务”的“必须”做某事，强调说话人的主观看法，主要用于肯定句和疑问句；must还可以表示肯定推测，意思是“一定”。haveto强调的是客观需要，意思是“不得不”。haveto有人称和数的变化。,Imustworkhardatmylessons.我必须努力学习功课。(主观意愿）Ihavetolookaftermotherathome.Forsheisill.我得在家照看妈妈，因为她病了。(客观需要）Itisgettingdark.Hehastogohomenow.天快黑了。他现在得回家了。(客观需要）,must的否定形式是mustnot，其缩写为mustnt，表示禁止，意思是“不能，不许”。haveto的否定形式是donothaveto，其缩写为donthaveto。Youmustntmakeanynoiseinclass.上课时你们不许吵闹。Youdonthavetowatertheflowers.Foritisgoingtorain.你们不必浇花了，因为要下雨了。,9.Dad,mustwewaituntilthelightbecomesgreen?Yes,Imafraidwe_.Thatsthetrafficrule.(2013河南)A.canB.mayC.haveto