新广州版英语初二上-U3-computers教案讲义与练习

U3computers日积月累：1、stopdoing停止正在做的事stoptodo停止正在做的事去做某事stopsbfromdoing阻止某人做……2、Thankyouforyourtime.感谢大家抽出珍贵的时间。3、advice[U]n.建议giveadviceon就……给出建议advisev.建议advisesb.todosth.建议某人做某事suggest都可接动名词作宾语〔不能用todo〕Isuggestedputtingoffthesportsmeet.我建议将运动会延期.4、inthepast在过去infuture是从今以后，往后的日子里。是指从说话时间起以后的时间里inthefuture未来，将来。指离说话时间很长一段时间后回忆测评：单项选择–Whatshouldwedonow,Mr.Black?–PleaseturntoPage__________andlookatthe__________picture.A.Twelve,fifthB.Twelfth,fifthC.Twelve,fiveD.Twelfth,fiveThereare___________inourclassroom.A.hundredofbooksB.thehundredsofbooksC.hundredsofbooksD.hundredofbookInfigures(数字)，amillionis___________.A.10,000B.100,000C.1,000,000D.100,000,000Thereare__________ofstudentsinourschoolbutonly___________ofthemareboys.A.hundreds,twohundredB.hundred,twohundredsC.hundreds,twohundredsD.hundred,twohundredTheroadisover__________meterslong.A.sixhundredandfifty-twoB.sixhundredsandfifty-twoC.sixhundred,fifty-twoD.sixhundred,fiftyandtwo_________plussevenisthirteen.A.FiveB.SixC.EightD.NineTheboyhas________modelplanes.A.twohundredsandfifty-fiveB.twohundredsfifty-fiveC.twohundredandfifty-fiveD.twohundredfifty-fiveI’dlike_______,please.A.twobottlesoforangeB.twobottleoforangesC.twobottlesoforangesD.twohundredfifty-fiveWe’rethestudentsof__________.A.GradeThreeB.ThreeGradeC.theGradeThreeD.theThreeGradeDavidran_________inthe500metersrace.oneB.theoneC.firstD.thefirstComputersComputersareusefulmachines.Theycanhelppeople__1__intheirdailylife.Forexample,theycanhelppeoplesavetimeandworkoutmanyproblems__2__.Todaymoreandmorefamiliesowncomputers.Parentsbuycomputers__3__theirchildren.Theyhopecomputerscanhelptheirchildrenimprove(提高)theirstudies.Yet__4__childrenusecomputerstoplaygamesorwatchfilmsinsteadof__5__theirsubjects.So,manyteachersandparentscomplainthatcomputerscan’thelpchildrenstudybut__6__themfallbehind.Soparentsalwaysputawaythecomputersandask__7__childrentostudyhard.Insomecountries,evensomescientists__8__hatecomputers.Theysaycomputersmake__9__peoplelosetheirjobsandbringthemalotoftrouble.Willcomputersreallybringtroubletopeopleorcantheybringpeople__10__?It’suptopeoplethemselves.()1.A.lotof B.lotsof C.alot D.alotof()2.A.easy B.easier C.easiest D.easily()3.A.on B.for C.to D.in()4.A.toomany B.toomuch C.manytoo D.muchtoo()5.A.study B.tostudy C.studying D.studied()6.A.makes B.making C.make D.tomake()7.A.they B.their C.them D.themselves()8.A.also B.too C.in D.with()9.A.million B.millions C.millionof D.millionsof()10.A.happy B.happily C.happiness D.happier内容呈现：教学重点：熟练掌握比拟级和最高级的用法。教学难点：1〕对本单元重点词汇和短语的识记和理解。2〕对练习的错题进行分析和归纳。教学内容：课内知识：1、order订购n.V.Thefactoryhasreceviedanorderfor2,000machinetools.该工作收到一笔2000台机床的订单。Theyhaveordered1,000oilpumpsfromourfactory.他们已向我厂订购了1000台油泵。2、comparev比拟；比照Ifyoucomparebothofourcars,you’llfindthemverymuchalike.如果你把我俩的轿车比拟一下，就会发现它们很相似。表示“把……与……比拟”，通常用compare…with…，也可以用compare…to…或compare…and…。如：Ifyouhisworkwith/and/tohers,you’llfindhersismuchbetter.要是把他俩的工作比拟一下，就会发现她的要好得多。表示“把……比作……”，通常用compare…to…。如：Shakespearetheworldastage.莎士比亚把世界比作舞台。表示“比得上，能与……媲美”，通常用comparewith或compareto。MyEnglishcan’twith/tohis.我的英语不能与他相比。monitorn.显示器；班长Theis22inches.这台显示器是22英寸的。WeallmadeLindaofourclass.我们都选琳达做我们班的班长。speaker扬声器n演讲者nkeyboard键盘nmouse鼠标nmainunit主机ntype打字nUsethekeyboardtointhechannelnumber.用键盘键入频道号。typist打字员ntypewriter打字员nbrain大脑n智力nintelligence智力nShesufferedseriousdamageinacaraccident.他出了车祸，脑部受了重伤。Shehasaveryquickandlearnsfast.她头脑灵活，学得很快。7、control控制nv短语组合：losecontrolofsth失去对……的控制undercontrolof得到控制outofcontrol失去控制incontrolofsth掌控；控制Theenemymanagedtotakeofthecity.敌人成功控制了这座城市。8、expensive昂贵的；价格高的adjIcan’taffordsuchantoy.我买不起这么贵的玩具。近义词：dear昂贵的反义词：cheap廉价的inexpensive不贵的；廉价的9、tiny极小的；微小的adjThoughshewas，shehadaveryloudvoice.她虽然个头小，嗓音却非常洪亮。反义词：huge 10、depend依靠；依赖vdependon依靠；依赖I’llneveranyoneagain.我再也不会依赖任何人。11、speed速度nHedroveoffathightspeed.他驱车奔驰而去。atafastspeed以更快的速度12、calulate计算vcalculator计算机ncalculation计算n13、operate操作vSheoperatesthelift.她是开电梯的。*operate还有如下常见用法表示“经营，管理”Mydadoperatesonecompanyandthreeschools.我爸爸管理一个公司和三所学校。B、表示“工作〔运转〕”。如：Mycomputeroperatesdayandnight.我的电脑日日夜夜都开着。C、表示“有效〔起作用〕”。如：Themedicineoperatedquickly.药很快就起效了。D、表示“对……动手术”，需和介词on连用。如：Thedoctorsdecidedtooperateonherimmediately.医生们决定立刻给她动手术。14、railway铁路nHeisgoingtoseehisuncleoffattherailwaystationthisafternoon.他打算今天下午去火车站为他的叔叔送行。Whatcanwedowithcomputers?我们可以用电脑来做什么？with表示“用”的含义时，后面多跟“使用的工具”。16、workas从事……的工作Computersmayworkasdoctors.电脑可以充当医生的角色。Doyouwanttoanaccountant?你想当会计吗？17、inthe1940s在20世纪40年代〔1940~1949〕in1940在1949年18、Inaddition另外，此外〔放在句首〕Bothofusenjoymusic.Inaddition,webothloveplayingtennis.inadditionto后接名词或动词ing形式。Weplayfootballinadditiontobasketball.我们除了踢足球外，还打篮球。Inadditiontogivingaageneralintroductiontocomputers,thecoursealsoprovidespracticalexperience.该课程除了大致介绍电脑知识外，还提供实际操作的时机。19、begoodat擅长于〔后接名词、代词或ving形式。〕bebetterat更擅长于1〕begoodat意为“擅长……”，后接名词、代词或ving形式。

I’mgoodatplayingchess.我擅长下象棋。Weshouldbegoodatlearningfromeachother.我们应该善于互相学习。GirlsarebetteratEnglishthanboys,butboysdobetterinMathsthangirls.begoodwith意为“灵巧的；与……相处得好”。

=getonwellwith

Heisverygoodwiththechildren.他与这些孩子处得很好。=Heisgettingonwiththechildren.

Sheisgoodwithherhands.她手很巧。3〕begood/kind/niceto意为“对……好”。反义词beharmfulto,doharmto

MyfriendwasgoodtomewhenIwasill.我生病时我的朋友对我关心备至。

Smokingisharmfultohealth.吸烟有害健康。4〕begoodfor意为“对……有好处”。例如：

Eatingmorevegetablesisgoodforyourhealth.多吃蔬菜对你的健康有好处。注：区分句型It’sgoodforsb.todosth.It’sgoodofsb.todosth.=It’skindofsb.todosth.It'sgoodforyourhealthtodrinkmorewater.It'sgoodforyourbodytotakemoreexercise.It’sgoodofyoutohelpme.=It’skindofyoutohelpme.20、happento遭遇、发生在……身上，后面常接人。Pleasetellmeifanythinghappentohim.请告诉我他是不是出了什么事。21、havenothingtodo无所事事Ihadnothingtodothewholeafternoon.havenothingtodowith与……无关Hisbookshavenothingtodowithhislife.他写的书和他的生活无关。语法知识————比拟级与最高级大局部形容词的比拟级和最高级是通过变化词尾来实现的，属于规那么变化，但也有少数是不规那么变化。比拟级和最高级的构成规那么变化单音节和少数双音节形容词规那么变化如下：注：双写形容词词尾字母加-er，-est的常用形容词归纳如下：bigfatgladhotredthin变词尾字母y为i再加-er，-est的常用形容词归纳如下：angrybusydirtyearlyhappyhungrylazylonelyluckynoisyunhappy不规那么变化原级比拟级最高级goodbetterbestbadworseworstlittlelessleastmuch/manymoremostfarfarther/furtherfarthest/furthestoldolder/elderoldest/eldest原级、比拟级的用法两者程度相同的比拟①as+adj.原级+as…和…一样…②否认句中，用notas……as或者notso……as不及……假设第一个as后的adj.作定语修饰n.，应将该n.及有关修饰语都放在第一个as之后Mysisterdoesn’tmakeasmuchmoneyasmybrotherdoes.高于或低于另一方的比拟比拟级+than两者程度不同的其他形式morethan(多于)，notmorethan(不多于)，lessthan(少于)notlessthan〔不少于〕，lessadj.+than比拟级+and+比拟级“越来越……”the+比拟级……，the+比拟级……“越……，〔就〕越……”注意：比拟级的修饰语much,even甚至,(by)far大大地,alittle有点,abit有点,still,yet,alot很,agreatdeal大大地,twice,fivetimes,manytimes,two-fifths,20%最高级的用法最高级是表示在三者或更多者中程度最高的比拟方式。此时运用adj.的最高级，句式为：the+adj.最高级+n.+表示范围的短语或从句〔in/of+范围〕如：Lucyisthemostbeautifulgirlinherclass.Jimisthethinnestofthethreeboys.特别注意：介词in和of引导的短语用于比拟结构时所表达的范围有所不同：如果在一定的地域空间内进行比拟用in如果是在同一类事物范围内进行比拟用of“最……“的其他表达方法运用比拟级表达最高级概念Annistallerthananyothergirlinherclass.Annistallerthantheothergirlinherclass.Annistallerthantherestofgirlinherclass.否认句中用“a/an+比拟级”表示最高级概念Ihaveneverreadabetterbookthanthis.注:最高级的修饰语序数词，〔by〕far，nearly几乎，almost几乎Africaisthesecondlargestcontinent.Ofallthestudents,Amy’swritingisalmostthebest.Yaomingisbyfarthemostactivememberintheirteam.形容词的比拟级和最高级稳固练习Thesnowstormwhichhitthisarealastnightwas_________inrecentyears.A.heavyB.heavierC.heaviestD.theheaviestIthinkrealcardsare_________thane-cards.A.niceB.nicerC.nicestD.thenicestTheelectricfancan_________blowawaytheterriblesmellintheroom,canit?A.easilyB.hardlyC.quicklyD.finallyIdidn’tsleep________lastnight.Ifeeltirednow.A.wellB.niceC.goodD.fine–Whatbadweather!-Yes.Theradiosaysitwillbeeven_________lateron.A.badB.badlyC.worstD.worst–Howfarisittotheairport?20kilomters?-No,it’s________.About30kilometers.A.farB.fartherC.thefartherD.thefarthest–Let’sgotothenewrestauranton24thstreetfordinnertonight.-Wecancookitathome.It’s________.A.expensiveB.moreexpensiveC.lessexpensiveD.themostexpensiveHenryisagoodrunner.Heruns_________thanhisfriends.A.fastB.fasterC.slowerD.slowestTravellingbycarmaybe__________,butnotso__________.A.quicker,cheaperB.morequickly,cheapC.quick,cheapD.morequick,cheaperInthispartofthecountry,wateris________oil.A.sodearasB.asdearasC.dearasD.sodear–WhatdoyouthinkofMark’scomposition?-Quitegood.ButIthinkyoursis________.A.goodB.betterC.bestD.thebestThe_______friendsyouhave,the_______youwillbe.A.more,happyB.Many,happyC.more,happierD.many,happier–Didyouloveyourdaytrip?Yes,weenjoyedtherollercoaster________ofall.A.mostB.littleC.moreD.less–Doesthechildneedanyhelp?-No.Sheis________todressherself.A.enougholdB.youngenoughC.oldenoughJimmyusedtobeashortboy,butnowheis_______inhisclass.A.tallB.tallerC.thetallestD.short16.–ItseemsthatAliceneverwantstodoanythingexceptdrawpictures.-Right.That’swhatshelikestodo________.A.moreB.lessC.mostD.least17.-Whichcolordoyoulike________,blueorgreen?-Blue.A.goodB.betterC.bestD.thebest18.Listeningisjustas_________asspeakinginlanguagelearning.A.importantB.moreimportantC.mostimportantD.themostimportant19.–Whydon’tyoulikewinterinBeijing?-Becauseitis_________winterinGuangzhou.A.ascoldasB.muchcolderthanC.notsocoldasD.notcolderthan20.–Lookatthemodelship.-Iknow,butislooksarealone.It’sjust________.A.smallB.verysmallC.smallerD.smallest稳固与提高：语法专练用所给形容的原籍、比拟级或最高级形式填空。Whichcityis___________(small)inChina?Whois____________(clever),JaneorKate?ExerciseOneis___________(easy)thanExerciseTwo.I’m____________(thin)ofthethree.Thefilmis_____________(wonderful)thanthatone.Ithinkthelionis_____________(dangerous)ofall.Paulisnotas_______________(popular)asMary,butheis______________(funny).TodayBillgets_________________(bad)thanyesterday.Thefurshoesaremuch________________(expensive)thantheleatherones.He’salittle________________(late)thanme.单项选择Whichis________,themoonortheearth?A.bigB.biggerC.biggestD.thebiggestMobilephonesareverypopularnowandtheyare________thanbefore.A.cheapB.cheaperC.cheapestD.thecheapestHeisoneof________intheworld.A.thegreatpersonB.thegreatestpersonC.thegreatestpersonsD.thegreatpersons________peoplewehelp,________wefeel.A.Many,themorehappilyB.Themore,thehappierC.All,thehappiestD.Most,themosthappySupermarketsarenecessary.Peopleusuallyspend_________timefindingthingstheywant,buttheyusuallyspend_______moneythantheywant.A.less,lessB.less,moreC.fewer,lessD.fewer,moreMikehasthreecars.Theblackoneis_______ofthethree.A.mostgoodB.thebestC.betterD.goodWearegladtoseethatGuangzhouisdeveloping________theseyearsthaneverbefore.A.rapidlyB.lessrapidlyC.morerapidlyD.themostrapidlyTheairinGuangzhouisgettingmuch________nowthanafewyearsago.A.cleanB.cleanerC.cleanestD.thecleanest–Gina,didyoudo________inthegirl’slongjump?-Yes,Iwonthefirstplace.A.longestB.farthestC.highestD.best–DoyoulikeEnglish?-Yes.ButIthinkit’s________subjectofall.A.theeasiestB.ThemostdifficultC.themostinterestingD.themostboring四：小结与作业：Unit3单元测验单项选择–Dothesedresses_________?Alittle.Butthedesignandcoloraren’tattractive.(吸引).A.sellgoodB.sellwellC.selloutD.sellsoonIusedtowork_________anurseinahospital.A.toB.onC.forD.asBasketballisakindof__________sport.Manystudentsliketoplayitclass.A.popularB.tiringC.difficultD.boring–Wespentallourmoneybecausewestayedatthemostexpensivehotelintown.-Whydidn’tyoustayat_________one?A.acheapB.acheaperC.thecheapD.thecheaperYoumight___________manyhidden“computers”inyourhome.A.areunawareofB.isunawareofC.amunawareofD.beunawareofPaper-makingis__________ofancientChina.A.oneofgreatestinventorB.oneofthegreatestinventorsC.oneofgreatestinventionD.oneofthegreatestinventions–Whatdoesyourbrotherlooklikenow?-Oh,heismuch_________thanbefore.A.strongB.strongerC.strongestD.toostrongHeisanhonestmanto____________.A.keeponB.getonC.dependonD.decideon–I’dliketomakeXiaoSun__________thereport.–Don’ttroubleher.Shehasnotime____________it.A.totype,todoB.type,doingC.type,todoD.type,do10.-Ifyouhaveanytrouble,besuretocallme.-________.A.IamsorrytohearthatB.Iwill.ThankyouverymuchC.IhavenotroubleD.Iwillthinkitover语法选择WeareallbusytakingaboutandusingtheInternet,buthowmanyofusknowthehistoryoftheInternet？Manypeopleare___1____whentheyfindthattheInternetwassetpinthe1960s.Atthattime,computers____2____largeandexpensive.Computernetworks(网络)didn’tworkwell.Ifonecomputerinthenetwork_____3___down,thewholenetworkstopped.___4_____anewnetworksystem(系统)hadtobesetup.Itshouldbe____5___tobeusedbymanydifferentcomputers.Ifpartofthenetworkwasnotworking,____6____couldbesentthroughanotherpart.Inthiswaycomputernetworksystemwouldkeepon____7____allthetime.However,computerswerestillveryexpensiveandteInternetwasdifficulttouse.Bythestartofthe1990s,computersbecamecheaperand___8____touse.Todayitiseasytogetonline(上网)anditissaidthatmillionsofpeopleusetheInterneteveryday.___9____e-mail(电子邮件)ismoreandmorepopularamongstudents.TheInternethasnowbecomeoneof____10___partsofpeople’slife.()1.A.surpriseB.surprisingC.surprisedD.tosurprises()2.A.isB.areC.wasD.were()3.A.breakB.breaksC.brokeD.wouldbreak()4.A.BecauseB.SoC.ButD.However()5.A.goodenoughB.wellenoughC.enoughgoodD.enoughwell()6.A.informationB.informationsC.aninformationD.theinformations()7.A.workB.toworkC.workingD.worked()8.A.easyB.easilyC.moreeasilyD.easier()9.A.SendB.SendingC.TobesentD.sent()10.A.importantB.moreimportantC.mostimportantD.themostimportant完形填空MydearestAuntlivesinthecountry.Butsheisn’ta____1___.Shebuysvegetablesfromthefarmersand____2___themintown.Sometimesshecan’tselloutallhervegetables____3____,soshetakessometous.AuntMeiisoldandshort,butshe’svery____4____.Shecanwalk____5___thanussometimes.AuntMeihasno____6___.Sheliveswithheronlywhitecat.Everysummer,Igotostaywithherforaweekortwo.Sheoften____7___metothefarmnearby.Lifeinthecountryisinteresting.Icangofishing,andIcan____8___birdssingingandsheepbleating.Iwanttoswimintheriver.ButAuntMeidoesn’tallowmetodoso.Shesaysit’snot___9____.Thefarmersnownolongeruseanimalstodothefarmwork.They___10____tractors(拖拉机).Allofthemlookhappy.()1.A.teacherB.doctorC.farmerD.nurse()2.A.growsB.sellsC.asksD.buys()3.A.riceB.vegetablesC.fruitsD.meat()4.A.healthyB.illC.happyD.interesting()5.A.moreslowlyB.fasterC.nearerD.father()6.A.childrenB.animalC.studentsD.relatives()7.A.bringsB.takesC.getsD.has()8.A.listentoB.seeC.hearD.find()9.A.clearB.longC.deepD.safe()10.A.useB.likeC.loveD.buy写作运用单词拼写Theplanewasoutofc__________.Pleaseturnoffthes___________.Howmuchwordscanyout____________everyminute?Hedroveatas___________ofsixtymilesperhour.It’stooe____________andwecan’taffordtobuyit.完成句子电脑会使我们未来的生活更好还是更差。Willcomputersmakeourlives_____________________________inthefuture?笔记本电脑比台式电脑更受欢送。Laptopsare______________________________desktops.我盼望不久能收到你的信。I_______________________________hearingfromyouinthenearfuture.人们现在更加依赖电器。Nowadayspeople_____________________________electricalappliances.你好似没有意识到它是多么的危险。Youseem__________________________howdangerousitis.阅读理解AQQisanonlinechatsoftware(软件)whichwasinventedbyShenzhenTencentComputerSystemCompanyinFebruary,1999.Sincethenitbecamepopulararoundthecountry.Itssymbolisapenguinwearingaredscarf(围巾)。Wecandivideournetfriendsintoabuddylist〔forgoodfriends〕,astrangerlist(forpeopleyoudon’twanttotalkwithatonce),oranignorelist(forpeopleyouneverwanttoreceivemessagefrom).Youcanalsobuildupfamilylists,co-worker(同事)lists,etc.Youcanknowwhetherlistedfriendsareonlineaslongasyouuseit.Thecartoonportrait(肖像)ofthepersonturnsbrightifheorsheisonline.Andtheportraitturnsgreyifheorsheisoffline.QQisregulardailycommunicationaltool.“What’syourQQnumber?”hasbecomeamoderntopic.1.QQis_________.A.aspecialchatroomforallInternetusers.B.acartonportraittorecognizefriendsontheNet.C.anonlinechatsoftwarethathelpsyoutalkontheNetmorefreely.D.amodernphonenumberusedbymoreandmorepeople.2.QQbecamepopular________A.since1998B.formorethantenyearsC.sincetwentyyearsagoD.forabouteightyears3.WiththehelpofQQ,ifyouneverwanttochatwithsomeone,youcanputhimin________A.thebuddylistB.thestrangerlistC.theignorelistD.theco-workerlist4.Whenyouseesomeone’scartoonportraitis__________,youknowheorsheisofflineA.brightB.blackC.redD.grey5.Thepassagemainlytellsus___________A.howtochatwithpe