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Lead-inDidyoucallyourfatherifyourfatherisn’tin?Doyouknowthesign？atabletadesktopcomputeralaptopkeyboardmonitorscreenmouseLearningTipCanyounamethepartsofacomputer?Whatcanyoudoonacomputer?Houdoyouusetheinternet?playgameswatchmovieslistentothemusicreadnovelsfindtheinformationself-directedlearningshopchatwithfriendsbooktheticketetc.sendorrecievee-mailsLesson19HowDoYouUsetheInternet?Showthepreviewn.技术n.台式电脑，桌面n.平板电脑，牌，碑n.键盘n.邀请n.工业，企业，行业technology[英][tek'nɒlədʒɪ]desktop[英][ˈdesktɒp]tablet[英][ˈtæblət][美][ˈtæblɪt]keyboard[英][ˈki:bɔ:d]invitation[英][ˌɪnvɪˈteɪʃn]industry[英][ˈɪndəstri]Phaases知道，了解__________过去常常做某事_____________做某事是……___________与某人在线聊天___________视频聊天_____________写……关于……博客____________组建一个面包俱乐部_______________搞研究，进行调查_____________在因特网上______________收集关于……信息____________开始做某事________________多于，超过_____________把某物寄给某人________________learnaboutusedtodosth.Itisadj.todosthchatwithsbonlinevideochatblogaboutorganizeaDonutClubdoresearch/makearesearchontheInternetcollectinformationaboutbegintodosthmorethansendsth.tosb./sendsb.sthThereare__________fiftystudentsinourclassLisenthetaecher.TickthethingsthatJennyandherclassmatesliketodoontheInternet.watchmoviesshopwriteblogschatonlineplaygamesreadsendorreceivee-mailslistentomusicdoresearchforhomeworkmakefriends√√√√√合作探究1.Ithasnokeyboardormouse,soitiseasytocarry.它没有键盘和鼠标，所以它很容易携带。Shedoesn‘tlikesingingordancing.[知识拓展】or与andHurryup，_______you’llmissthetrain.Workhard,________you’llpasstheexam.orAreyouateacheroradriver?（1）or表示转折或并列关系时，意为“否则，要不然”。而and表示句意顺承。Youhavetorun,____you'llbelateforschool.(2)or作“或者”讲时，表示选择，用于选择疑问句。翻译：你是一个老师还是一个司机？____________________(3)在否定句中，并列成分用or连接而不用and.2.anywhereYoucango___________(任何有趣的地方）ifyoulike.[知识拓展]somewhere某个地方，everywhere每个地方，nowhere无处，哪里都不。adv.任何地方有时可用作主语或宾语，相当于名词n.任何(一个)地方形容词修饰anywhere时，要把形容词放anywher之后。当anywhere用作名词充当主语时,其后不可接否定谓语。用作副词：1.用于否定句、疑问句或条件句中，用以代替somewhere,意为“在(往)什么地方”、“在(往)任何地方”。若是要肯定地说某个地方，应用somewhere2.用于肯定句，意为“在任何地方”。ThecitywelcomesvisitorsfromanywhereIhaven‘tbeenabletoobtainthatbookanywhere.Ifyougoanywhere,takemewithyou3.Coffeegrowsinmorethan70countries!morethan意为“多于，超过”，相当于over。Thereare___________fiftystudentsinourclass我们班有五十多名学生。【注意】morethanone+可数名词单数“作主语时，虽然指两个以上的人或物，含有复数意义，但谓语动词仍为单数形式。Morethanoneperson________aboutthat.不止一个人知道那件事。Morethanonestudent___________fromUSA.is/comes“Morethan+名词”表示“不仅仅是”。“Morethan+数词”含“以上”或“不止”之意IhaveknownDavidformorethan20years.4.Ifwewanttohaveameeting,Icansendtheinvitationonline.如果我们想召开会议，我可以在线发出邀请。句中if引导条件状语从句，意为如果。主将从现就是指时间和条件状语从句中，表示将来的时候,主句用一般将来时,从句用一般现在时。1、条件状语从句时态呼应为主将从现。Hewillgototheparkifit____________tomorrow.2、时间状语从句的时态呼应为主将从现。例：IwillcallyouassoonasI_________________(到达）theairport.。doesn'traingetto/reach/arriveat如果你要来吃晚饭的话，请提前告诉我。__________________fordinner，pleasetellmeinadvance.if在此意为“如果”引导条件状语从句分三种情况：1.如果主句含有must,may,can等情态动词，从句用一般现在时2.如果主句是一般将来时，从句则用一般现在时替代一般将来时。主将从现“3.如果主句是祈使句，从句也要用一般现在时。Idon'tknowifitwillraintomorrow.if在此意为”是否；是不是“，if引导宾语从句时，放在及物动词之后。若主句动词为一般现在时，从句的时态根据语境而定；若主句动词为一般过去时，从句中用过去的某种时态Fillintheblankswiththecorrectformsofthegivenverbs.Ifyouworkhard,you’ll_____(get)thereintheend.Ifyoudon’tstophim,hewill______(play)gamesthewholeday.Ifit_(rain)tomorrow,Dannywillnotgotothesupermarkettobuydonuts.Ifyou__(go)tobednow,I’llreadyouabedtimestory.getplaygorainsLet'sDoIt.Test1.Ifyou_____totheparty,you'llhaveagreattime.A.willgoB.wentC.goD.going2.I______hertheanswerifshe______me.A.cantell;willaskB.willtell;willaskC.wouldtell;askD.willtell;asks3.Whatwillyoudoifyou_____totheoldfolk'shome?A.goB.wentC.goingD.willgo4.I'llgivethebooktohimifhe____herenextSunday.A.willcomeB.comesC.iscomingD.came5.---Let'sgotothecommunityifit_______tomorrow.---Butnobodyknowsifit_____tomorrowA.won'train;rainsB.doesn'train;rainsC.doesn'train;willrainD.won'train;willrainReadthetextandfinishtheexercisebelow.1.李明过去常常使用这台电脑LiMing_____________thiscomputer.2.如果你没有时间，我就为你做这件事。I'lldothisforyou__________________time.3.这个问题很容易回答Thisquestionis______________.4.你可以通过电子邮件告诉我你的地址。Youcantellmeyouraddress________.5.我不知道如何使用这台计算机。Idon'tknow____________thiscomputer.usedtouseifyoudon'thaveeasytoanswerbye-mailhowtouseHomeworkPleasereadthetextasmuchaspossibleinyoursparetime.WriteapassageabouthowyouusetheInternet.(50-100words)Believeyourselves.Youcandoit.1.LearnthewordsandexpressionsinLesson20.2.Underlinethesentencesyoudon’tunderstandonpage52.