广州新版八年级（上册）Unit-3-Computers

./Unit3Computers课文重难点详解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：intheearly1940sYoumaybeunawareofthem.beunawareof意为"未察觉,没有意识到"译：那个男孩没有意识到危险。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Ilostmypen.Imustbuyone.it特指上文提到的同一物品Thecoatishers.It’sverybeautiful.例：Thebananapietastesdelicious.CouldIhaveanother?AoneBitCthisDthatYoudependoncomputersmorethanyourealize.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 依靠dependon物取决于dependentadj.依赖的,反义词：independent"独立的"dependon=bedependenton译：shedependsonustohelpher.Ourplandependsontheweather.Computersalmostnevergivewronganswers.almostnever=hardly意为"几乎不"辨析：hardly和hardhardly"几乎不"Alicehardlywearsskirts.hard"努力地,困难地,猛烈地"Itrainedveryhardlastnight.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.AdoBdoesCdoingDtodo8.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’ssblike"某人如何"用于询问某人的性格,品质等Whatdoessblike"某人喜欢什么"用于询问某人的爱好Whatdoessblooklike"某人长什么样"用于询问某人的外貌9.Someyoungpeoplealwaysneedhelpfromtheirparents.need用法总结：needsb/sth需要某人或某物例：Ineedapentowritewith.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；

great

long

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；

wide

nice

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；

happy

empty

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；

big

fat

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/wellbetterbest

manymoremost

muchmoremostlittlelessleast

bad/illworseworst

farfarther/furtherfarthest/furthestoldolder/elderoldest/eldest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.

Unit3同步练习Theworkersspenttwoyearsmyhouse.AbuildBbuildingCbuildsDhuiltHowoftendoesBobplaytennis..AEveryday.BForayear.CAweekagoDAmonthlater.WouldyoulikeTV?I’dloveto,butIhavelotsofhomeworktodo.AwatchingBtowatchCseeingDtoseeWe’relookingforwardthefootballgametomorrow.AtoBatConDofI’mhungrynow.Let’sstop.AhavingamealBhavingarestCtohaveamealDtohavearest6.Thatbeautifulskirtiscotton.AmadeofBmadeintoCmadefromDmadeupof7.Whatshallweifwegoforapicnic?

AbringBtakeCcarryDget8.Thisboxis___thatone.

A.heavythanB.soheavythanC.heavierasD.asheavyas

9.Whenwespeaktopeople,weshouldbe'.

A.aspoliteaspossibleB.aspoliteaspossibly

C.aspolitelyaspossibleD.aspolitelyaspossibly

10.Thisbookis____thatone,but____thanthatone.

A.asdifficultas;expensiveB.asmoredifficultas;moreexpensive

C.asdifficultas;moreexpensiveD.moredifficultas;asexpensive

11.Ithinkthestoryisnotso___asthatone.

A.interestingB.interestedC.moreinterestingD.mostinteresting12.Hisfatherbegantowork____hewassevenyearsold.

A.asoldasB.asearlyasC.sinceD.while13..Ithinkscienceis____thanJapanese.

A.muchimportantB.importantC.muchmoreimportantD.moremuchimportant

14.Thispencilis_____thanthatone.

A.longestB.longC.longerD.aslong

15.Mymotherisno______young.

A.shorterB.longerC.littleD.few

16.Thesechildrenare________thisyearthantheywerelastyear.A.moretallB.moretallerC.verytallerD.muchtaller17.Itwasveryhotyesterday,butitis______today.

A.evenhotterB.morehotter

C.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 C.orD.so<>2.A.make B.send C.giveD.write<>3.A.we B.you C.theyD.I<>4.A.doctor B.teacher C.studentD.student<>5.A.plays B.buys C.usesD.does<>6.A.in B.on C.withD.at<>7.A.make B.do C.playD.get<>8.A.parents B.friends C.fatherD.mother<>9.A.legs B.ears C.eyesD.faces<>10.A.music B.English C.filmsD.books阅读理解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.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's

3、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、with

prep.和……人一起

具有……

用……

11、addition

n.加法,增加物inaddition=besides另外

inadditionto=aswellas除了……之外

12、like

v.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.fact

n.事实,真相

Infact

事实上,其实=Asamatteroffact事实上,其实

二、

MorePractice1．Thankyou/thanks

for<doing>sth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

Bydoingsth通过做某事12.

Haveto不得不……〔客观的Must必须〔主观的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′s

stop

tohave

lunch.1.Stop________!Ourteacheriscoming.

A.talk

B.totalk

C.talking

D.talked2.Onmywayhome,Imetanoldfriendandstopped_______atalk.<have>2.They’llalsogivesomeadviceonhowtousecomputersfor

studying.他们也会给一些关于怎样利用网络学习的建议。

give<sb>someadviceon

howtodo

关于某方面的建议〔advice不可数怎样做某事〔必须接宾语=give<sb>someadviceon

doing1.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.whattouse

B.whatusing

C.howtouse

D.howusing3.

Ihopewecanallworktogethertostopstudentsfromspendingtoomuchtimeplayingcomputergames.<p.45>stop

sb.

fromdoing阻止某人做

sb.spendsometimeon/<in>doing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;toread

B.paid;forreading

C.spend;reading

D.spent;on

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…work

dependon=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〔norder〔v

compare〔vcomparison〔n

mousemice〔pl.

type〔vtyper打字机typist打字员〔n

calculate〔vcalculation计算calculator计算器〔n

operate〔voperation〔n

sell-sold-sold〔vsale〔nsalesman

dependdependent依赖的〔adjdependence依赖〔n

independent独立的〔adjindependence独立〔nI.

同义词

<

>1.IamsorrythatIamunawareofthemistake.

A.don’tknow

B.don’tcareabout

C.knowsalittleabout

D.knowsalotabout

<

>2.Couldyoutellmethegrandtotal?

A.littletime

B.largenumber

C.wholework

D.fullamount

<

>3.WhenIwasyoung,Ialwaysdependedonothers.

A.madefriendswith

B.laughedat

C.livedwith

D.reliedon

<

>4.Finally,Jackoperatedthemachinesuccessfully.

A.made…change

B.made…work

C.made…rest

D.made…stop

<

>5.What’sthepriceofthiscomputer?

A.Howmanyis

B.Howdoyoulike

C.Whydoyoubuy

D.Howmuchis

<

>6.Look!Thetinybabyoverthereissocute!

A.verylovely

B.verysmall

C.verybig

D.veryold

<

>7.Mymotherusedtoworkasateacherinthevillage.

A.like

B.be

C.belike

D.have

<

>8.Thismachineisveryexpensive.

A.costsalittlemoney

B.looksbeautiful

C.costsalotofmoney

D.doesn’tcostmuch

<

>9.Jackworkshard.Inaddition,heiskindtohisfriends.

A.Forexample

B.Besides

C.InadditiontoD.HoweverII.

单项选择题

<

>1.TakingbusesinBeijingis_____than____ataxi.

A.morecheap;taking

B.muchcheaper;taking

C.alittlecheap;totake

D.alittlecheaper;totake

<

>2.________,Shenzhenwasstillasmallvillage.

A.In1840s

B.Intheyearof1840s

C.Inthe1840

D.Inthe1840s

<

>3.I’mhungrynow.Let’sstop_______.

A.havingameal

B.tohaveameal

C.havingarest

D.tohavearest

<

>4.--what’sthe______ofthisnewtrain?

--It’s__________200kmperhour.

A.price;atthespeedof

B.price;inthespeedof

C.speed;inthespeedof

D.speed;atthespeedof

<

>5.Thankyoufor_______uswiththetask.Ilookforwardto_______withyounexttime.

A.helping;working

B.tohelp;work

C.helping;work

D.tohelp;working

<

>6.—Areyoufeeling_____today?—I’mafraidnot.It’s_______daysinceIgotill.

A.good;theworst

B.better;worse

C.well;thebest

D.better;theworst

<

>7.Kenisverygenerous<有天赋的>.________,heisskillfulinplayingchess.

A.Inaddition

B.Infact

C.However

D.Suddenly

<

>8.—Doyouknowwhat__________thegirlinthefilm?

—Yes.She______toomuch_______herparentsandwasunabletodoanythingbyherself.

A.happenedwith;depended;on

B.happenedwith;depended;with

C.happenedto;depended;at

D.happenedto;depended;on

<

>9._______youlose,________youwillbe.

A.T