广州新版八年级上册Unit3Computers.docx
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广州新版八年级上册Unit3Computers
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it
one
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?
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。
人依靠
dependon
物取决于
dependentadj.依赖的,反义词:
independent“独立的”dependon=bedependenton
译:
shedependsonustohelpher.
Ourplandependsontheweather.
5.Computersalmostnevergivewronganswers.
almostnever=hardly意为“几乎不”
辨析:
hardly和hard
hardly
“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.
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whatdoessblooklike
What’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/well------better------best
many------more------most
much------more------most
little-----less----least
bad/ill------worse------worst
far------farther/further---farthest/furthest
old----older/elder------oldest/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
1.Theworkersspenttwoyearsmyhouse.
AbuildBbuildingCbuildsDhuilt
2.---HowoftendoesBobplaytennis.---.
AEveryday.BForayear.CAweekagoDAmonthlater.
3.---WouldyoulikeTV?
---I’dloveto,butIhavelotsofhomeworktodo.
AwatchingBtowatchCseeingDtosee
4.We’relookingforwardthefootballgametomorrow.
AtoBatConDof
5.I’mhungrynow.Let’sstop.
AhavingamealBhavingarestCtohaveamealDtohavearest
6.Thatbeautifulskirtiscotton.
AmadeofBmadeintoCmadefromDmadeupof
7.Whatshallweifwegoforapicnic?
AbringBtakeCcarryDget
8.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.mostinteresting
12.Hisfatherbegantowork____hewassevenyearsold.
A.asoldasB.asearlyasC.sinceD.while
13..Ithinkscienceis____thanJapanese.
A.muchimportantB.important
C.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.muchtaller
17.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.butB.andC.orD.so
()2.A.makeB.sendC.giveD.write
()3.A.weB.youC.theyD.I
()4.A.doctorB.teacherC.studentD.student
()5.A.playsB.buysC.usesD.does
()6.A.inB.onC.withD.at
()7.A.makeB.doC.playD.get
()8.A.parentsB.friendsC.fatherD.mother
()9.A.legsB.earsC.eyesD.faces
()10.A.musicB.EnglishC.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.like
2.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、 MorePractice
1.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