广州新版八年级上册unit3computers培训课件

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Unit3Computers
课文重难点详解
1.Inthe1940s,thefirstcomputerswerebiggerthancars.
inthe1940s意为“在20世纪40年代”，例：在20世纪50年代表示在某个年代初期或末期，可以在年份前加early或late.例：intheearly1940s
2.Youmaybeunawareofthem.
beunawareof意为“未察觉，没有意识到”
译：那个男孩没有意识到危险。
3.ThereisprobablyoneinsideyourTVorwashingmachine.one此处用作代词，用于泛指前面提到过的名词。辨析：one和itone
泛指上文提到的同类事物中的一个
it
特指上文提到的同一物品
Thecoatishers.It’sverybeautiful.Ilostmypen.Imustbuyone.
例：Thebananapietastesdelicious.CouldIhaveanother?AoneBitCthisDthat
4.Youdependoncomputersmorethanyourealize.
dependon意为“依靠，指望”，主语可以是人，也可以是物，其含义有所不同。人
dependon
物取决于
dependentadj.依赖的，反义词：independent“独立的”dependon=bedependenton
译：shedependsonustohelpher.
Ourplandependsontheweather.
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依靠

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5.Computersalmostnevergivewronganswers.almostnever=hardly意为“几乎不”辨析：hardly和hardhardlyhard
6.However,onedaycomputersmaybeabletodoabetterjobthanhumanbeings.beableto意为“能够”，后接动词原形。7.Willwehavenothingtodo?
todo为动词不定式，此处用来修饰nothing,如果不定式中的动词是不及物动词，需要带上必要的介词。
例：Doyouwantsomethingtodrink?
Thereisawarmclothestolivein.例：---Whydon’tyougoouttoplay,Rose?
---I’mafraidIcan’t.Ihavemuchhomework.AdoBdoesCdoingDtodo
8.Whatwerethefirstcomputerslike?
What+be+主语+like?意为“......怎么样？”,like是介词，意为“像，相似”译：今天天气怎么样？辨析：what’ssblike,whatdoessblike与whatdoessblooklikeWhat’ssblikeWhatdoessblike
“某人如何”“某人喜欢什么”
用于询问某人的性格，品质等用于询问某人的爱好用于询问某人的外貌
“几乎不”
“努力地，困难地，猛烈地”
Alicehardlywearsskirts.Itrainedveryhardlastnight.
Whatdoessblooklike“某人长什么样”
9.Someyoungpeoplealwaysneedhelpfromtheirparents.need用法总结：
needsb/sth需要某人或某物例：Ineedapentowritewith.
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②sbneedtodosth某人需要去做某事例：Heneedstohaveagoodrest.③sthneeddoing某物需要被...例：Mybikeneedsrepairing.④needn’t用来回来Must提出的问句例：--MustIbringmyhomeworknow?--No,youneedn’t.
重点语法：
形容词的比较级和最高级分为规则变化和不规则变化规则变化如下:
1单音节形容词的比较级和最高级形式是在词尾加-er和-est构成；greatlong
2以-e结尾的单音节形容词的比较级和最高级是在词尾加-r和-st构成；widenice
3以辅音字母+y结尾的形容词，比较级和最高级是把y去掉,加上-ier和-est构成；
happyempty
5辅元辅的形容词，比较级和最高级是双写该辅音字母，再加-er和-est；bigfat
6部分双音节和多音节形容词，比较级和最高级需用more和most来构成。beautifuldifficult
常用的不规则变化的形容词的比较级和最高级:good/well------better------bestmany------more------mostmuch------more------mostlittle-----less----leastbad/ill------worse------worst
far------farther/further---farthest/furthestold----older/elder------oldest/eldest
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形容词前如加less和least则表示"较不"和"最不"
important重要lessimportant较不重要leastimportant最不重要
形容词比较级的用法
1.两者比较时用形容词比较级，其结构为“...比较级+than...”如：Actionsspeaklouderthanwords.
2.在两者之间选择“哪一个更……”时，用句型“Which/Whois+比较级,...or...?”
如：Whichsweaterischeaper,theredoneortheyellowone?
3.表示“两者之间最……的一个”时，用“the+比较级”如：Lucyisthetallerofthetwins.
4.表示“越……，越……”时，用“the+比较级，the+比较级”如：Themoreyoueat,thefatteryouwillbecome.
5.表示“越来越……”时，用“比较级+and+比较级”，多音节词和部分双音节词用“moreandmore+形容词原级”
如：Weshouldmakeourcountrymoreandmorebeautiful.
6.形容词比较级前可以用下列词修饰：much,alittle,far,abit,afew,alot,even,still,rather等如：It'smuchcoldertodaythanyesterday.
表示“最……之一”时，用“oneof+the+最高级”如：Thelightbulbisoneofthemosthelpfulinventions.
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Unit3同步练习
1.Theworkersspenttwoyearsmyhouse.
AbuildBbuildingCbuildsDhuilt2.---HowoftendoesBobplaytennis.---.
AEveryday.BForayear.CAweekagoDAmonthlater.3.---WouldyoulikeTV?---I’dloveto,butIhavelotsofhomeworktodo.AwatchingBtowatchCseeingDtosee4.We’relookingforwardthefootballgametomorrow.AtoBatConDof5.I’mhungrynow.Let’sstop.
AhavingamealBhavingarestCtohaveamealDtohavearest6.Thatbeautifulskirtiscotton.
AmadeofBmadeintoCmadefromDmadeupof7.Whatshallweifwegoforapicnic?
AbringBtakeCcarryDget8.Thisboxis___thatone.
A.heavythanB.soheavythanC.heavierasD.asheavyas9.Whenwespeaktopeople,weshouldbe'.
A.aspoliteaspossibleB.aspoliteaspossiblyC.aspolitelyaspossibleD.aspolitelyaspossibly10.Thisbookis____thatone,but____thanthatone.
A.asdifficultas;expensiveB.asmoredifficultas;moreexpensiveC.asdifficultas;moreexpensiveD.moredifficultas;asexpensive11.Ithinkthestoryisnotso___asthatone.
A.interestingB.interestedC.moreinterestingD.mostinteresting12.Hisfatherbegantowork____hewassevenyearsold.A.asoldasB.asearlyasC.sinceD.while13..Ithinkscienceis____thanJapanese.
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A.muchimportantB.importantC.muchmoreimportantD.moremuchimportant14.Thispencilis_____thanthatone.
A.longestB.longC.longerD.aslong15.Mymotherisno______young.
A.shorterB.longerC.littleD.few
16.Thesechildrenare________thisyearthantheywerelastyear.A.moretallB.moretallerC.verytallerD.muchtaller17.Itwasveryhotyesterday,butitis______today.A.evenhotterB.morehotterC.muchmorehotD.muchhot
18.MrsBlackhasgot______insteadofgettinganybetter.
A.morebadB.alittleworseC.muchbadlyD.alotofworse完型填空
Allmyfamilymembersliketousecomputers.
WeliveinChina,1myunclelivesinAustralia.Myfatherandmyuncleoften2emailstoeachother.Sometimes3chat（聊天）online.
Mymotherisa4inamiddleschool.Sheoften5thecomputerforherlessons.Shealsogetsinformationforherlessons6theInternet.
MybrotherandIliketo7computergames.IliketoplayCounterStrike,buthelikestoplayTombRaider.My8don’tlikeustoplaythemtoolong.Theysaythatplayingcomputergamestoolongisbadforour9andstudy.Webothlike10,too.SosometimeswedownloadsongsfromtheInternettoourMP3players.
(1.A.but
B.and
B.sendB.you


C.orD.soC.giveD.writeC.theyD.I
(2.A.make(3.A.we

(4.A.doctor(5.A.plays
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B.teacherB.buys

C.studentD.student
C.usesD.does

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(6.A.inB.onB.do


C.withD.atC.playD.get
C.fatherD.motherC.eyesD.faces
(7.A.make(8.A.parents(9.A.legs

B.friends
B.ears
(10.A.music
阅读理解
B.EnglishC.filmsD.books
Wearealreadyfamiliarwithcomputers—computersworkforusathome,inofficesandinfactories.Butitisalsotruethatmanychildrentodayareusingcomputersatschoolsbeforetheycanwrite.Whatdoesthismeanforthefuture?Arethesechildrenluckyornot?
Manypeoplewhodonotknowaboutcomputersthinkofthemasmachinesthatchildrenplaywith.Theyworrythatchildrendonotlearnfromexperiencebutjustfrompressingabuttonandthatthisisnotgoodforthem.Theythinkthatchildrenaregrowingnotknowingabouttherealworld.
Butpeoplewhounderstandmoreaboutcomputerssaythatcomputerscanbeverygoodforchildren.Acomputercanhelpthemtolearnabouttherealworldmorequickly,tolearnwhattheywanttolearnandthinkforthemselves.Andforthefuture,don’tweneedpeoplewhocanthinkclearly,whoknowhowtogetinformationquicklyanduseitwell?Whatdoyouthink?1.“Tobefamiliarwith”meansto______.
A.knownothingB.knowaboutC.dislikeD.like2.Doeseveryonethinkcomputersaregoodforchildren?A.Yes,theydo.B.No,noteveryonethinksso.C.Theydon’tknow.D.Theyarenotsure.3.Whatcancomputershelpchildrentodo?
A.Tothinkclearly,todohomeworkandtowrite.B.Toplaygames,todomathandtocopy.
C.Tothinkclearly,togetinformationandtouseitwell.D.Tocount,tocleanthehouseandtogetinformation.
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4.Doesthewriterthinkcomputerisagoodthing?
A.Wedon’tknow.B.No,hedoesn’tthinkso.C.Hedoesn’tknow.D.Yes,hedoes.
一、短语知识点总结
1、inthe1940s在20世纪90年代的时候=inthe1940's3、smallerandsmaller越来越小比较级+比较级越来越……4、beunawareof~没意识到……5、insideprep.在……里面
6、dependv.依靠，依赖dependentadj.依赖的，依靠的；dependableadj.可靠的dependon/upon依靠，依……而定
dependonit毫无疑问，没问题Italldepends.这也难说，要看情况而定。7、dowith~处理(与what搭配）dealwith~处理（与how搭配）8、atafasterspeed以(用）一个更快的速度用工具withhands/ears/eyes/computers用声音inalowvoice用语言inEnglish用材料inink,pen以价格atthehighprice以速度atafullspeed
9、givewronganswers=giveawronganswer给出错误的答案10、withprep.和……人一起具有……用……
11、additionn.加法，增加物inaddition=besides另外inadditionto=aswellas除了……之外
12、likev.喜欢prep.像……likesth喜欢某物liketodosth=likedoingsth喜欢做某事
13、oneday（过去或将来的）某天someday(将来的）某天14、beabletodosth=can能够做某
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15、Forexample例如（一个例子）Suchas例如（多个例子）
16、bebetteratdoingsth更擅长做某事begoodatdoingsth擅长做某事begoodfor...对…有好处begoodto...对…友好17、havenothingtodo无事可做
18、makev.制作，使得，让makesbdosth.使得某人做某事makesbadj使得某人……
19.factn.事实，真相Infact事实上，其实=Asamatteroffact事实上，其实
二、MorePractice
1．Thankyou/thanksfor(doingsth因……而感谢某人
2．With+n./prep/doing有……Without+n./prep/doing没有……，缺乏……3．OntheInternet在网上
4．Usedtodosth过去常常做……Beusedtodoingsth习惯做某事5．Sbspendtime/moneyonsth某人在某物上花钱/时间Sthcostsmoney某物花钱Payforsth为某物付钱
Ittakessbsometimetodosth花某人多少时间做某事
6．Infrontof在……的前面(范围之外）Inthefrontof在……的前面（范围之内）7．Bebadfor对……有害8．Givesomeadvice给建议
9．Hopeforsth希望得到某物Hopetodosth.希望做某事Hope(that+句子希望……
10．Stoptodosth停下来去做某事（做别的事）Stopdoingsth停止做某事（停止正在做的事）
Stopsbfromdoingsth阻止某人做某事11.Bydoingsth通过做某事
12.Haveto不得不……（客观的）Must必须（主观的）
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13.Howoften多久一次（问频率）14.Much+比较级……的多15.Oneof+最高级+n.(Pl.……之一16.Become+adj变得……
17.Lookforwardto(介词）期望……在介词后面加动词，都加动词的ing形式。
三、同步讲与练
1.Stopworking!Let′sstoptohavelunch.
1.Stop________!Ourteacheriscoming.A.talkB.totalkC.talkingD.talked2.Onmywayhome,Imetanoldfriendandstopped_______atalk.(have
2.They’llalsogivesomeadviceonhowtousecomputersforstudying.他们也会给一些关于怎样利用网络学习的建议。
give(sbsomeadviceonhowtodo---关于某方面的建议（advice不可数）怎样做某事（必须接宾语）
=give(sbsomeadviceondoing---
1.王教师昨天给了我们一些如何学好英语的建议.
DrWanggaveus_______________________________Englishwell.2.Idon’tknow_________thecomputer.
A.whattouseB.whatusingC.howtouseD.howusing
3.Ihopewecanallworktogethertostopstudentsfromspendingtoomuchtimeplayingcomputergames.(p.45stopsb.fromdoing阻止某人做---
sb.spendsometimeon/(indoing某人花钱、花时间做某事1.我们的环境越来越差了，我们应该阻止人们砍伐树木。
Ourenvironmentisbecomingworseandworse,weshould____people__________downtrees.
2.Tom_____twodays_____thestory.
A.took;toreadB.paid;forreadingC.spend;readingD.spent;on
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四、同义词/同义句：
tiny=verysmall极小的
expensive=dear=notcheap=costsalotofmoney昂贵的
beunawareofsth=benotawareof=don’tknow=don’trealize没有察觉到beawareofsth=know=realize意识到operate=make…workdependon=relyon依赖inaddition=besides=what’smore此外beabletodo=cando能够做某事grandtotal=fullamount总额
Wecantypeanddrawthingswithcomputers.=Wecanusecomputerstotypeanddrawthings.Maryistallerthananyothergirlinourschool.=Maryisthetallestgirlinourschool.
IV．词型变化
order（n）---order（v）compare（v）---comparison（n）mouse---mice（pl.）
type（v）---typer打字机typist打字员（n）
calculate（v）---calculation计算calculator计算器（n）operate（v）---operation（n）sell-sold-sold（v）---sale（n）salesman
depend---dependent依赖的（adj）---dependence依赖（n）---independent独立的（adj）---independence独立（n）I.同义词
(1.IamsorrythatIamunawareofthemistake.
A.don’tknowB.don’tcareaboutC.knowsalittleaboutD.knowsa
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lotabout
(2.Couldyoutellmethegrandtotal?
A.littletimeB.largenumberC.wholeworkD.fullamount(3.WhenIwasyoung,Ialwaysdependedonothers.
A.madefriendswithB.laughedatC.livedwithD.reliedon(4.Finally,Jackoperatedthemachinesuccessfully.
A.made…changeB.made…workC.made…restD.made…stop(5.What’sthepriceofthiscomputer?
A.HowmanyisB.HowdoyoulikeC.WhydoyoubuyD.Howmuchis(6.Look!Thetinybabyoverthereissocute!
A.verylovelyB.verysmallC.verybigD.veryold(7.Mymotherusedtoworkasateacherinthevillage.A.likeB.beC.belikeD.have(8.Thismachineisveryexpensive.A.costsalittlemoneyB.looksbeautifulC.costsalotofmoneyD.doesn’tcostmuch
(9.Jackworkshard.Inaddition,heiskindtohisfriends.
A.ForexampleB.BesidesC.InadditiontoD.However
II.单项选择题
(1.TakingbusesinBeijingis_____than____ataxi.
A.morecheap;takingB.muchcheaper;takingC.alittlecheap;totakeD.alittlecheaper;totake
(2.________,Shenzhenwasstillasmallvillage.
A.In1840sB.Intheyearof1840sC.Inthe1840D.Inthe1840s(3.I’mhungrynow.Let’sstop_______.
A.havingamealB.tohaveamealC.havingarestD.tohavearest(4.--what’sthe______ofthisnewtrain?--It’s__________200kmperhour.A.price;atthespeedofB.price;inthespeedofC.speed;inthespeedofD.speed;atthespeedof
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(5.Thankyoufor_______uswiththetask.Ilookforwardto_______withyounexttime.
A.helping;workingB.tohelp;workC.helping;workD.tohelp;working(6.—Areyoufeeling_____today?—I’mafraidnot.It’s_______daysinceIgotill.
A.good;theworstB.better;worseC.well;thebestD.better;theworst(7.Kenisverygenerous(有天赋的.________,heisskillfulinplayingchess.A.InadditionB.InfactC.HoweverD.Suddenly(8.—Doyouknowwhat__________thegirlinthefilm?
—Yes.She______toomuch_______herparentsandwasunabletodoanythingbyherself.
A.happenedwith;depended;onB.happenedwith;depended;withC.happenedto;depended;atD.happenedto;depended;on(9._______youlose,________youwillbe.
A.Themore;thehappiestB.Themore;thehappierC.Theless;thehappiestD.manythings;happy
III.词形填空
1.Iama______(type,andIalwaystypethingswiththis______(type.2.Kenalwaysasksothersforhelp.Heisa_______(dependchild.3.Therearemanygreat_____(companyinShenzhen.4.I’msorry,butthisdressisnotfor____(sell.
5.Ilookforwardto_______(becomeamemberofyourteam.6.Doyouknowhow_______(operatethismachine?
7.Heorderedus______(flythespaceshipassoonaspossible.8.Amyis_____swimmerofthesixstudents.(good
9.Myfatherisatraindriver,soheworksonthe______(railway.10.Comparedwithmybag,yoursismuch_____(good.11.Isheable______(controlthewholecountry?12.Thedoctorisdoingan_____(operateonthepatient.
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IV.完成句子：
1.现在，世界上的许多地方缺水。Manyplacesintheworld__________waternow.
2.我认为手机比相机要有用得多。Ithinkamobilephoneis___________________acamera.
3.我跑着追那辆公共汽车，可是没能追上。Iranafterthebus,butI____________catchit.
4.那个杯子由塑料制成。Thatcup_________plastic.
5.你日常生活中常常对手机依赖吗？Doyou________yourmobilephonealot______________?
V.连词成句：
1.of,should,aware,they,the,danger,be_____________________________________
2.jobs,some,be,than,humanbeings,better,computers,will,at,doing_____________________________________3.to,Saturdays,nothing,I,on,have,do,usually_____________________________________
4.new,machine,with,this,the,can,operate,we,invention_____________________________________5.realize,you,more,computers,depend,you,on,than_____________________________________

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广州新版八年级上册unit3computers培训课件

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