高中英语 Unit 3 Computers教案(2)新人教版必修2 教案 13页

Unit3ComputersBook2Period1WordsandexpressionsI.Content:NewwordsandexpressionsinUnit3II.Teachingaims:Masterthenewwordsandexpressions.III.Mainpoints:1.Pronouncethewordsandphrasescorrectly2.TrytorememberthespellingandChinesemeaningIV.DifficultpointsUsethewordsfreelyV.TeachingstepsSTEP1.PronunciationcorrectingReadaftertheteacherorthetapetwice.Thentheteacherasksthestudentstoreadwordsbythemselves.STEP2.SkillsinmemorizingthenewwordsTheteacheranalysesthestructureandusageofthenewwordsbriefly.STEP3.Consolidationofthewordsandexpressions★单词翻译1.____________vt.计算2.____________n.计算器3.____________n.笔记本4.____________a.简单的5.____________n.工艺；技术6.____________a.科技的7.____________n.革命8.____________a.宇宙的9.____________a.数学的10.____________a.人造的11.____________n.智力；智能12.____________ad.完全地13.____________n.网络14.____________ad.真实地15.____________n.种族16.____________n.诞生17.____________n.优势；优点18.____________n.缺点19.____________v.打字20.____________vi.不同意21.____________n.选择22.____________n.原料23.____________ad.亲自地24.____________vt.创造25.____________n.教练26.____________n.步骤；动作27.____________vi.出现28.____________n.脑29.____________n.拖把30.____________vi.徘徊★词组1.___________________共有；共用2.___________________依……看来\n3.___________________走过；过去4.___________________处理；安排；对付5.___________________在某种程度上6.___________________弥补；整理7.___________________毕竟8.___________________在……的帮助下9.___________________看守；监视★单词拼写1.Creditcardshavebroughtabouta________(革命)inpeople’sspendinghabits2.I’msorrytosaythatI______(彻底地)forgetaboutit.3.Lookbeforeleap.Don’tbe____________(头脑简单的).4.Withthedevelopmentof_________(技术),morepracticalmachineshavebeeninvented.5.Inbasketballmatches,Americanplayershaveanobvious_________(优势)inheight.6.P________speaking,I’minfavoroftheplan.7.Inc______withmanyothers,sheappliedforatrainingplace.8.Idon’tlikea________flowers,whichcannotpurify(净化)theair.9.An_______computeriseasytocarry.1o.He’sveryclever.He’sgotquitehighi____________quality.★选词填空Inaway,serve,what'smore,intheway,makeup,develop,personally,aboveall,share1.Helivedinapoordistrictinahouse_____withanotherfamily.2.Don'ttakeitseriously.Thestoryisonly________.3.Icouldn'tgetthroughthegatebecauseyourcarwas________.4.Thechangewasanimprovement___________.5.I'llbuyahousewhichmodern,comfortableand_____inaquietplace.6.Theoldmanis______inhealth.7.Peterworkswell.______helikestohelpothers.8.Hisbrother__________inthearmyfortwoyears.9.Youshouldn'thavetalkedabouttheboy's___________affairs.\n1.Doyoumindwaitingafewmoreminutesforthephotos?They______.STEP4.Usingwordsandexpressions(SsbookP20)STEP5.Homework1.Learnallthewordsandexpressionsbyheart.2.Previewthetextandfinishdiscoveringusefulwordsandexpressions.BlackboardDesign:NewwordsandexpressionsTranslationPhrasesFillintheblanksUnit3ComputersBook2Period2TextLiuJuanI.ContentText:WhoamI?II.Teachingaims:1.understandingthegeneralmeaningofthenewtexttotrainthereadingabilityofthestudents2.德育目标：了解计算机的发展历程。III.Importantanddifficultpoints:1.Graspthegeneralideaofthetext.2.LearnaboutsomecharacteristicsoftheEnglishpoems3.RetellthetextfreelyIV.Teachingsteps:STEP1.Leadinandwarmingup:1.Lookatthepicturesonp17anddiscusswhattheyhaveincommon.STEP2.Pre-readingHowhavecomputerschangedourlife?____________________________________________________________________________________________________________________________________\nSTEP3.Fastreading:Readthepassagesilentlyandquicklyandanswerthefollowingquestions,You’llbegiven5minutes.1）Whowasthefirstpersontodevisetheearliestcomputer?_______________________________________________________________________2)Whatdidhemakeandwhatdiditdo?_______________________________________________________________________3)Whowasthenextimportantpersontodesigncomputers?_______________________________________________________________________STEP4.CarefulreadingTask1:Fillintheblanksaccordingtothetimeline.1642:________________________________________________________________:TheAnalyticalMachinewas madebyCharlesBabbage．1936:___________________________________________________________1960s:________________________________________________________________:Thefirstfamilyofcomputersconnectedtoeachother．1970s:___________________________________________________________Now:___________________________________________________________STEP5.InterviewAsareporter,youwillinterviewMr.COMPUTER.STEP6.Homework1.Previewthesecondtext(SB,P22)2.Readingtask(WB,P58)BlackboardDesign:LeadinPre-readingFastreadingCarefulreading\nUnit3ComputersBook2Period4GrammarLiuJuanTeachingaim:GrasptheusagesofThePresentPerfectPassiveVoiceandusethemfreelyImportantanddifficultpoints:TheusagesofThePresentPerfectPassiveVoiceThePresentPerfectPassiveVoice现在完成时被动语态由”has/have+been+及物动词的过去分词”构成。使用现在完成时被动语态要注意以下几点：1.只带有一个宾语的动词变为被动语态时，将主动语态的宾语变为被动语态的主语。例如：Wehavebuiltmanyhousesinthepasttenyears.→Manyhouseshavebeenbuiltinthepasttenyears.2.带有双宾语的动词，如give,send,bring,take,teach,show,tell,make,sing,write,read,sell,buy,tell,pay,lend,pass,\npromise等，变为被动语态时，可将其中一个宾语变为主语，另一个保留不动。例如：Wehavegivenhimthebook.→Hehasbeengiventhebook.→Thebookhasbeengiventohim.3.带有复合宾语的动词变为被动语态时，只能将宾语变为主语，原来的宾补改为主语补足语。原来省略to的不定式作宾补的，被动语态中要用带to的不定式。例如：Ihavetoldthemtohelpyou.→Theyhavebeentoldtohelpyou.Ihavemadeherworkhard.→Shehasbeenmadetoworkhard.4.短语动词变为被动语态时，要注意保持短语的完整性，动词后原有的介词或副词不可遗漏。例如：Theyhavereferredtothebooks.→Thebookshavebeenreferredto(bythem).Hehasthoughtofawayofdongit.→Awayofdoingithasbeenthoughtof.1.Hundredsofjobs________ifthefactorycloses.（2001全国春招）A.loseB.willbelostC.arelostD.willlose[解析]本句的意思是：如果工厂倒闭，那么将失去数百个工作岗位。loseajob意为”失业”。工作将被失去，要用将来时态的被动语态，因此排除答案A、C和D，答案选B。2.ThemayorofBeijingsaysthatallconstructionworkfortheBeijingOlympics________by2006.(2004北京)A.hasbeencompletedB.hascompletedC.willhavebeencompletedD.willhavecompleted[解析]宾语从句中主语allconstructionworkfortheBeijingOlympics和谓语动词complete之间有被动关系，所以谓语要用被动语态，因此排除选项B和D；by2006暗示谓语要用将来完成时态，因此答案选C。3.Allthepreparationsforthetask________,andwearereadytostart.(NMET2000春招)A.completedB.completeC.hadbeencompletedD.havebeencompleted[解析]本句的意思是：这项工作的一切准备工作已经就绪,我们只等开始了。前半句主语和谓语有被动关系，后半句暗示说话是从现在着眼，所以用现在完成时态的被动语态。答案D。\n练习:★单项填空1.Papermoney_____foroverathousandyears.A.usedB.hasbeenusedC.hasusedD.isusing2.Comeandsitdownbythefire.Yourhand_____cold.A.hasbeenleftB.feelsC.isleftD.hasleft3.Tillnow,threefilms_____inthatsmallvillagethismonth.A.haveshownB.havebeenshownC.wereshownD.willbeshown4.Doyouknowthethief_____bythepolice?A.hascaughtB.hasbeencatchingC.wascaughtD.hasbeencaught5.Mysisterisworkinginthepowerplantthat_____forjustoneyear.A.wasusedB.hasbeenusedC.isusedD.hasused6.Isthisthereason_____heexplainedatthemeetingforhiscarelessnessinthework?A./B.whatC.howD.why7.Theywereallverytired,butnoneofthemwouldstop_____.A.takingarestB.totakearestC.restingD.rest8.Herfacewentred_____hehadsaid.A.becausethatB.becausewhatC.becauseofwhatD.because9.Tomprefers_____ratherthan_____.A.stayathome;gooutB.tostayathome;gooutC.stayathome;togooutD.tostayathome;togooutFinishtheexerciseonpage21(Discoveringusingstructures)\nBlackboardDesign:GrammarThePresentPerfectPassiveVoiceExercisesUnit3ComputersBook2Period3LanguagepointsLiuJuanITeachingaims:Teachandstudythelanguagepointstograspandusethemfreely.IIImportantanddifficultpoints:incommon,anyway,goby,so...that...IIITeachingmethods:PractisingIVTeachingSteps:Languagepointslearning1.Insmallgroups,discusswhattheyhaveincommon?分小组，讨论它们的共同点。[要点导航]incommon共有，公用（常与have，own等动词连用，在句中多作状语）。例如：Thetwobrothersownthecompanyincommon.兄弟俩共有这家公司。Thetwocultures________________________.这两种文化具有许多相同之处。JaneandIhavenothingincommon(=IhavenothingincommonwithJane).我与简毫无共同之处。[思维拓展]incommonwith和……一样（作方式状语）。例如：\n,helikesfootball.他和很多其他的男孩一样喜欢足球。havenothingincommon无共同之处havelittleincommon几乎无共同之处havesomethingincommon有一些共同之处havealotincommon有许多共同之处以下是从英国国家语料库中精选出来的几个例句：（1）Youknow,Dorothy,youandIhaveonethingincommon．（2）WejusthadnothingincommonandIcouldn'tcommunicatewithhisdullbusinessfriends．（3）Isuddenlyfeltwehadalotincommon．TomandIhavenothingincommon.=I我和汤姆没有共同之处。common,ordinary和usual的区别:common指“共有的，公共的；共同的；常见的”。例如：Heistheircommonenemy.他是他们共同的敌人。Theproblemsarecommontoallsocieties.这些问题是所有社会的通病。common作“普通的”讲可与ordinary换用。如“普通人”也可说成commonpeople。ordinary意为“普通的，平淡无奇的”，指没有什么特别的地方。例如：Weareallordinarypeople.我们都是普通人。Heisinordinaryclothes.他穿着平常的衣服。usual意思是“平常的，通常的，一向的”，含有遵循常规的、习惯性的、一贯如此的意思。例如：TeaisconsideredtobetheusualdrinkoftheBritishpeople.茶被认为是英国人的日常饮料。Hemadetheusualmistakesthatallbeginnersmake.他犯的就是那些初学这老犯的错误。2.Anyway,let’sgobacktomyhistory.无论如何，让我们追溯一下我的历史。anywayadv.无论如何，反正（句子副词，等于anyhow。用于转换话题或回到原话题时）。例如：Anywayit’sworthtrying.不管怎样，值得试一下。\nThat’snotmyfault,anyway.反正那不是我的错。AnywayImustfinishtheworktoday.无论如何，我今天必须完成工作。[思维拓展]anywayadv.总之（句子副词，用于结束谈话时）。例如：Anyway,Imustbegoingnow.总之，我现在得走了。Anyway,afterthreemonthsattheclinic,she’dmadeafullrecovery.总之，在诊所治疗三个月后，她完全康复了。3.Astheyearshavegoneby,Ihavebeenmadesmallerandsmaller.一年一年过去了，我被制造得越来越小。此处as引导时间状语从句，表示“一边……一边”、“随着”之意。goby（时间）过去，流逝；经过，走过（某处）。Severalyearswentbybeforewemetagain.过去了好几年我们才再度见面。Don’tletthisopportunity___________.不要错失良机。Asquadcarwentby(us)atfullspeed.一辆巡逻车以全速驶过（我们的）身旁。拓展:goafter追求goagainst反对goahead先行一步；进展goover复习goout熄灭gothough经历；经受；仔细检查goonwith继续goinfor爱好；从事gooff悄悄离开；食物变坏goon进展；时间的过去（重过程）passbysb从某人旁边经过Idon’t________rock‘n’roll.It’smuchtoonoisyformytaste.（2004北京）A.goafterB.goawaywithC.gointoD.goinforgoafter追求；goawaywith与某人一块离开；gointo进入；goinfor爱好，从事。答案为D。4.AndmymemorybecamesolargethatIcouldn’tbelieveit!我的记忆力变得那么大以至于我都不能相信了。so…that…意思是”太……以至于……”，引导结果状语从句。adj./adv.+that-clause\nso+adj.+a/an+单数可数名词+that-clausemany/much/few/little+n.+that-clauseso与many/few/little/much连用当little修饰可数指大小时与such连用。She’ssoillthatshecan’tgetoutofbed.她病得很重，都下不了床了。Therewere___________________________________Ihadtowriteitagain.作文中有那么多错误，我不得不重写。拓展such…that…意为”太……以至于……”，也引导结果状语从句。有以下用法：a/an+adj.+单数可数名词+that-clausesuch+adj.+复数名词+that-clauseadj.+不可数名词+that-clauseThesearesuchinterestingbooksthatchildrenliketoreadthem.这些书很有趣，孩子们喜欢读。sothat既可以表达结果，又可以表达目的，表目的相当于inorderthat。Istoppedsothatyoucouldcatchup.我停下来以便你能赶上so…that…结构的so+形容词/副词位于句首时，主句要倒装。Soharddoesheworkthatheseldomgoeshome.他工作那么努力，几乎不回家。such…as…中的as引导的是一个定语从句。1)Hewassuch________goodspeakerthatheheldourattentioneveryminuteof________three-hourlecture.A．不填;theB．a;不填C．a;theD．a;a考查such+a/an+adj.+单数可数名词+that-clause结构和冠词的用法。2).Ihurried____Iwouldn'tbelateforclass．（MET87）A．sinceB．sothatC．asifD．unless 3)．Itis____workofartthateveryonewantstohavealookatit．（98上海卷）A．sounusualB．suchunusualC．suchanunusualD．soanunusual_________________\n汤姆跑得如此快以致于没有人赶上他(catchupwith)It’ssointerestingabookthatIhavereaditmanytimes.=It’sheavyastonenoonecanliftit.It’sheavyastonenoonecanlift.so…that和such…that可以相互转换，请把下面的句子转换为so…that结构：Itwassuchawarmdaythattheyallwentouting.=___________________________________________________Exercises:1.Howdoyouacaraccidentwhenishappens?A.doaboutB.dowithC.dealwithD.dealabout2.Tillnow,threenewgymnasiumsinBeijing.A.wouldbecompletedB.wasbeingcompletedC.havebeencompletedD.hadbeencompleted3.Whenandwheretogofortheon-salaryholidayyet.A.arenotdecidedB.haven’tbeendecidedC.isnotbeingdecidedD.hasn’tbeendecided4.–Goforapicnicthisweekend,ok?--.Ilovegettingclosetonature.A.Icouldn’tagreemoreB.I’mafraidnotC.IbelievenotD.Idon’tthinkso5.Mrsmithandhiswifethehouseworkandlivehappily.A.spareB.supportC.careD.share6.Hehadlittleeducationthathecan’tteachalittlechild.A.so,suchB.such,suchC.so,soD.such,so7.Christmasiscoming;weareinOctoberalready.A.onthewayB.inthewayC.outofthewayD.bytheway8.–Whathappenedtoyoulastnight?Whydidn’tyoucometomypartyintime?--Sorry,thetrafficwastooheavy,and,mycarbrokedownontheway.A.what’smoreB.what’stheworseC.what’sworseD.worstofall9.Hemetocome,buthasn’tcomeyet.A.wantedB.allowedC.promisedD.let\n10.Hepraisesforhishonesty.A.wonB.beatC.defeatedD.StruckBlackboardDesign:Languagepoints:incommon,anyway,goby,so...that...