Unit3TeenageproblemsGrammar(B)(C)Period5学习目标:1.‘wh-’words+‘to’-infinitives2.SentenceTypes句子种类学习重难点:1.Learnthefivebasicsentencestructures.2.Expressproblemsandtalkaboutsolutions.3.Learndifferentpartsofsentences:‘Objectcomplement’.学习内容:Grammar(B)(C)学习过程:1.‘wh-’words+‘to’-infinitives有一些动词后面可以接疑问词how,what,when,where,which,who再加动词不定式,但是why没有这种用法。这类动词中最常用的有:ask,decide,discover,findout,forget,know,learn,remember,see,show+宾语,think,understand,wanttoknow,wonder。如:(1)Hediscoveredhowtoopenthesafe.他发现了打开保险柜的方法。(2)Ifoundoutwheretobuyfruitcheaply.我找到了买便宜水果的地方。(3)Ididn’tknowwhentoswitchthemachineoff.我不知道什么时候关掉机器。(4)Ishowedherwhichbuttontopress.我指点她应该按哪个按钮。(5)Shecouldn’tthinkwhattosay.她想不出说什么。我们也可以用宾语从句表达同样的意思,但是通常从句的主语必须与主句的主语或宾语相同,所以上述句子也可以用下面的句子表达。如:(1)Hediscoveredhowhecouldopenthesafe.(2)IfoundoutwhereIcouldbuyfruitcheaply.(3)Ididn’tknowwhenIshouldswitchthemachineoff.(4)Ishowedherwhichbuttonsheshouldpress.(5)Shecouldn’tthinkwhatshecouldsay.2.SentenceTypes句子种类我们通常使用的句子可以分为四种:陈述句(肯定句和否定句)、疑问句(一般疑问句和特殊疑问句)、祈使句、感叹句。陈述句常用来提供信息;疑问句用来咨询信息或要求知道某件事情;祈使句用于提出命令或要求;感叹句用于表达一种强烈的感情。(1)It’sasunnyday.今天是晴天。(一种简单的陈述)(2)Mr.Wuisn’tathometoday.吴老师今天不在家。(也是一种简单的陈述)(3)Arethechildrenplayinggames?孩子们在玩游戏吗?(在向别人咨询信息)(4)Whereisthenearestpolicestation,please?请问,最近的警察局在哪里?(请别人告知某事)(5)Don’tputtheglasshere.Pleaseputitoverthere.不要把杯子放在这儿。请把它放那儿。(发出命令)(6)Whatalovelykite!这个风筝多可爱呀!(发出感叹,表示很喜欢)学习小结课堂达标检测(Period5)姓名:班级:等第:时间:一.翻译句子1.我不知道如何解决这个问题.I_____________________________.2.汤姆不知道该和谁玩.Tom______________________________.3.我忘了下一步该做什么.Iforgot___________________________.4.我们还没决定在哪儿见面.Wehaven’t________________________.5.请告诉我何时开班会.Pleasetellme____________________________.二.改写同义句1.Ican’tdecidewhentodomyhomework.Ican’tdecide______________myhomework.2.Sandywantstoknowwhereshecanaskforadvice.Sandywantstoknow________________foradvice.3.Milliedoesn’tknowhowtosolveherproblem.Milliedoesn’tknow__________________herproblem.4.Youshoulddecidewhichyoushoulddofirst.Youshoulddecide_________________first.三、请把下列各句陈述句改为疑问句。1.Thereisnowaterinthebottle.2.Shecansinganddanceverywell.3.HehasabrotherintheUnitedStates.4.Itoftenrainsinsummerhere.5.HercousinlivesinSuzhou.6.Theyalwaysplayedtogetheratthattime.四.补全感叹句⒈____deliciousthedishis!⒉____strangeclothesheiswearing!⒊____aninterestingsubjectitis!⒋____foggyitwasyesterday!____carelessaboyyouare!⒌