數(shù)詞用法講解及練習(xí)

1、數(shù)詞I. 定義與分類數(shù)詞是指表示數(shù)目多少或順序先后的詞。表示數(shù)目多少的數(shù)詞叫基數(shù)詞，如one,five,ten,thirty,sixty-five等；表示順序先后的數(shù)詞叫序數(shù)詞，如first,sixth,tenth,twenty-first等。數(shù)詞用法相當(dāng)于名詞和形容詞，在句中可用作主語、賓語、表語、定語、同位語等。II. 基數(shù)詞1. 英語中沒有“萬”這個(gè)讀數(shù)單位，要表示漢語中的“萬”，英語需借用thousand一詞，如“一萬”用“十個(gè)千”表示(tenthousand)，“十萬”用“一百個(gè)千”表示(onehundredthousand)。2. 用作基數(shù)詞單位的hundred,thousand,

2、million,billion通常不帶復(fù)數(shù)詞尾-s，但若用于表示數(shù)百、數(shù)千、數(shù)百萬這樣的泛指，則用復(fù)數(shù)。如：Abouttwothousandpeoplediedintheearthquake.大約有兩千人在地震中喪生。Thousandsofpeoplegototheseasideeveryyear.每年成千上萬的人到海濱去。3. 表示整十的基數(shù)詞用復(fù)數(shù)形式可以表示人的大約歲數(shù)或年代。如：Heisinhisearlytwenties.他才二十出頭(from。Thistookplaceinthe1930s.這事發(fā)生在20世紀(jì)30年代。III. 序數(shù)詞1. 許多序數(shù)詞是由相應(yīng)的基數(shù)詞后加詞尾-th構(gòu)

3、成的，如four/fourth，six/sixth，ten/tenth，sixteen/sixteenth，但是nine變?yōu)樾驍?shù)詞是ninth，而不是nineth。2. twentieth,thirtieth,fortieth等表示整十的序數(shù)詞，由相應(yīng)的基數(shù)詞將詞尾y改為ie，再加-th構(gòu)成。3. first,second,third通?？煽s寫為1st,2nd,3rd。凡是以th結(jié)尾的序數(shù)詞可縮寫為“基數(shù)詞+th”：4th,5th,9th,11th,60th,128th等。4. 非整十的多位數(shù)，將個(gè)位數(shù)變成序數(shù)詞即可：twenty-first(第21)，thirty-sixth(第36)，ni

4、nety-ninth(第99)，threehundredandsixty-fifth(第365)等。5. hundred,thousand,million等序數(shù)詞形式為hundredth,thousandth,millionth等。6. 序數(shù)詞前通常要用定冠詞，但表示考試或比賽等的名次時(shí)，通?？墒÷云淝暗亩ü谠~。如：Myroomisonthesecondfloorandhisonthethird.我的房間在三樓，他的房間在四樓。Hewas(the)thirdintheexam.他考試得了第三名。注：有時(shí)序數(shù)詞前不用定冠詞，而用不定冠詞，表示次第在原有基礎(chǔ)上的增加。如：Wellhavetodoi

5、tasecondtime.我們得再做一次(from。序數(shù)詞前用定冠詞和不定冠詞的區(qū)別在于：定冠詞表特指，不定冠詞表泛指，有類似another的意思，但比another的意思更明確。IV. 分?jǐn)?shù)、倍數(shù)、小數(shù)和百分?jǐn)?shù)1.分?jǐn)?shù)。1 1)分?jǐn)?shù)由基數(shù)詞和序數(shù)詞構(gòu)成：分子用基數(shù)詞，分母用序數(shù)詞，當(dāng)分子超過“1”時(shí)，分母用復(fù)數(shù)。如：twothirds=2/3threefifths=3/5注：1/2通常讀作aonehalf,一般不讀作asecond;1/4可讀作aonefourth,也可讀作aonequarter。(2)分子與分母之間加in,分子在前，分母在后，分子分母都用基數(shù)詞。如oneinten十分之一，

6、fiveineight八分之五。(3)分子與分母之間加outof,分子在前，分母在后，分子分母都用基數(shù)詞。如oneoutoften十分之一，fiveoutofeight八分之五。2 .倍數(shù)。英語中表示倍數(shù)時(shí)通常借助half,double,twice,threetimes等之類的詞。如：They'retwicethesizeofchickens.它們比雞大倍。Theirhouseisaboutthreetimesasbigasours.他們的房子大約有我們房子三倍大。倍數(shù)的幾種表達(dá)法(1)倍數(shù)+as+形容詞/副詞(原級)+as。如：Thisbridgeisthreetimesaslong

7、asthatone.這座橋是那座橋的三倍長。(2)倍數(shù)+形容詞或副詞的比較級+than。如：Thisbridgeisthreetimeslongerthanthatone.這座橋是那座橋的三倍長。(3)倍數(shù)+thesize/length/weight+of+表示比較對象的名詞。如：Thisbridgeisthreetimesthelengthofthatone.這座橋是那座橋的三倍長。(4)倍數(shù)+what引導(dǎo)的從句。如：Thecollegeistwicewhatitwas5yearsago.這所大學(xué)是它五年前的兩倍。3 .百分?jǐn)?shù)。百分?jǐn)?shù)由基數(shù)詞和百分號(hào)()組成，百分號(hào)()讀作percent。如

8、：thirtypercent=30%,60percent=60%用“基數(shù)詞+percent"。若表示幾分之幾或百分之幾十的人或物時(shí)，用加of,作主語時(shí)，謂語動(dòng)詞的數(shù)與of后的名詞數(shù)一致。如：Fortypercentofthestudentswearglasses.百分之四十的學(xué)生戴眼鏡。Two-thirdsofthemoneywasspentonfood.三分之二的錢都花在食物上。注意：percent一律用單數(shù)形式.4 .小數(shù)。小數(shù)點(diǎn)前的數(shù)按總數(shù)念，同其它基數(shù)詞讀法一樣，小數(shù)點(diǎn)用point,小數(shù)點(diǎn)后面的數(shù)按基數(shù)詞個(gè)個(gè)單獨(dú)念。如讀作ninepointsixfive。讀作twohundr

9、edandeighteenpointthreenine。V .日期1949年1949讀作nineteenforty-nine6月23日J(rèn)une23rd讀作June(the)twenty-third或thetwenty-thirdofJune2006年10月October2006讀作October,twothousandandsix1600年5月2日May2nd,2005讀作thesecondofMay,sixteenhundredVI .鐘點(diǎn)半小時(shí)用half,一刻鐘用aquarter,半小時(shí)以內(nèi)用past,超過半小時(shí)用to。08:00eighto'clock或eight09:15nin

10、efifteen或aquarterpast/afternine02:30twothirty或halfpast/aftertwo05:45fiveforty-five或aquartertosix14:15fourteenfifteen=p.m.23:05twenty-threeohfive24:00twenty-fourhundredhours=midnightVII .編號(hào)1 .單純的編號(hào)，可在基數(shù)詞前加number,簡寫為No.。如第二。2 .序號(hào)與事物名詞連用時(shí)分三種情況(from:小序號(hào)可用“the+序數(shù)詞+名詞”或“名詞+基數(shù)詞”。如第一次課可以說theFirstLesson或Less

11、onOne。(2)大序號(hào)通常只用“名詞+數(shù)詞”。如808號(hào)房間Room808;168路公共汽車Bus;南京路1490號(hào)1490NanjingRoad;電話號(hào)碼(用基數(shù)詞逐個(gè)念，0念字母O)。(3)用“a/the+number+基數(shù)詞+名詞”。如abus一輛三路公共汽車，thebus那輛三路公共汽車。VIII.約數(shù)1.用tens/dozens/scores/hundreds/thousands/millionsof表示“幾十、幾百、上千、成千上萬”等。如：Theboyboughtdozensofpencils.那個(gè)男孩買了幾十支鉛筆。Thousandsofpeoplediedintheearth

12、quake.數(shù)以千計(jì)的人死于地震。注意：(1)dozen,score,hundred,thousand,million等表示確切數(shù)量時(shí)，不用復(fù)數(shù)。如fivedozeneggs五打雞蛋，threehundredpeople五百個(gè)人。但score用法略有不同，與數(shù)詞連用時(shí)，也力口of。如twoscoreofeggs(40個(gè)蛋)。(2)有時(shí)單數(shù)形式的dozen,score,hundred,million等前面有數(shù)詞，后面也有of,此時(shí)的of表示的是部分與整體的關(guān)系，其后一定是them,us之類的人稱代詞或者有the,these,your之類的限定詞。如Iwanttobuythreedozenofth

13、eeggs.(我想買其中的三打蛋)(from用lessthan,under,below,almost,nearly,upto等來表示小于或接近某數(shù)目。如nearlytwohours將近兩個(gè)小時(shí)。3. 用morethan,beyond,ormore,over,above等來表示超過或多于某個(gè)數(shù)目。如morethan100years一百多年。4. 用or,orso,about,around,some,moreorless等表示在某一數(shù)目左右。如about50pens大約五十支鋼筆，amonthorso大約一個(gè)月。5.用to,fromto,betweenand表示介于兩數(shù)詞。如：Hissalaryr

14、osefrom100dollarsamonthto120dollarsamonth.他的工資從每月100美元升到了每月120美元。IX.年代表示在某個(gè)世紀(jì)的幾十年代，用“inthe+逢十的基數(shù)詞的復(fù)數(shù)”。基數(shù)詞的復(fù)數(shù)若用阿拉伯?dāng)?shù)字表示，可直接加s,也可加's。如“在20世紀(jì)80年代”是inthe1980's或inthe1980s,讀作inthenineteeneighties。注意：不要漏掉the。X.年齡1 .表示某人幾歲的確切年齡，用“基數(shù)詞+years01d”或“基數(shù)詞+ofage”或者“attheageof+基數(shù)詞”，也可直接用基數(shù)詞。如：HebegantostudyE

15、nglishat(theageof)seventy.他70歲開始學(xué)英語。She'sseventyyearsold.=She'sseventyyearsofage.她70歲了。2 .表示某人幾十多歲這樣的約略年齡，用"inone's+逢十的基數(shù)詞的復(fù)數(shù)(如tens,twenties,thirties等)”來表達(dá)。如：HewenttoAmericainhisthirties.他30多歲時(shí)去了美國。XI.算式2+8=10Twopluseightis/equalsten.Twoandeightare/equalten.Ifyouaddtwoandeight,youwi

16、llgetten.8-2=6Eightminustwois/equalssix.Twofromeightis/equalssix.Ifyousubtracttwofromeight,youwillgetsix2x8=16Twomultipliedbyeightis/equalssixteen.Twotimeseightis/equalssixteen.Ifyoumultiplytwobyeight,youwillgetsixteen.8+2=4Eightdividedbytwois/equalsfour.Eightovertwois/equalsfour.Ifyoudivideeightbyt

17、wo,youwillgetfour.數(shù)詞專項(xiàng)練習(xí)()1.ThePeople'sLiberationArmywasfounded.A.onAugust1,1927B.in1927,1AugustC.onAugust1st,1927D.inAugust1,1927()2.AboycansingtheEnglishsongverywell.A.ten-year-oldB.tenyearsoldC.ten-years-oldD.tenthyearsold()3.Anhourlater,ministerwassenttoseethe“magiccloth"wovenbythosetwo

18、men.A.twoB.thesecondC.thetwoD.second()4.Doyouthinkthereisanyroomforus?A.twoB.thetwoC.secondD.thesecond()5.Whichnumberiswrong?.A.NinetyB.NinteenC.NinthD.Nineteenth()6.Thenumber4,123isread.A.fourthousandonehundredandtwenty-threethousandandonehundredtwenty-threeC.fourthousandandahundredandtwenty-threeD

19、.fourthousandsahundredandtwenty-three()7.Theoldprofessorstillworkshardthoughheis.A.inhissixtyB.inhissixtiesC.insixtiesD.inthesixty()8.Thisclassroomisours.A.threetimesbigasB.asthreetimesbigasC.threetimesasbigasD.asbigthreetimesas()9.Thebasketballteamofourschoolranksinthematch.A.threeB.thirdC.thethree

20、D.thethird()10.Whichisthecarthathedrives?Its.A.fiftytwoB.thefifty-twocarsC.thecarfiftyfourD.thefifty-fourthcar()11.Whichofthefollowingiswrong?.A.Heisafifteen-year-oldboy.B.Heisattheageof15.C.Heisaboyof15.D.Heisfifteenyearold.()12.Ourschoolisnotverybig.Thereareonlystudents.A.ninehundredsofB.ninehundr

21、edC.ninehundredsD.ninehundredof()13.Howmanynewwordsarethereinlesson?ThereareonlyA.five;fifthB.fifth;fiveC.thefifth;thefiveD.thefifth;five()14.,Coca-ColabegantoenterChinasmarket.A.In1970sB.In1970sC.Inthe1970sD.Inthe1970s()15.Therewasnobusinthatsmalltown.Wehada.A.tenmileswalkB.ten-milewalkC.tenmileswa

22、lkD.tenthmilewalk()16.Whichroomdoyoulivein?.A.The201RoomB.Room201C.Room201stD.The201sRoom()17.Threehundredthousandonehundredandseventymeans.A.3,170B.3,117C.300,170D.30,170()18.OnMay,peopletraveledroundthecountry.A. the first, millions B.the first, millions of C. first, the millionth D.first,millions

23、()19.ofthemarediningatschool.A.TwelveB.TwelfthC.ThetwelveD.the12th()20.7:17isread.A.sevenandseventeenB.sevensevenC.sevenonesevenD.sevenseventeen()21.Fourtwoistwo.A.plusB.minusC.timesD.dividedby()22.Threefiveiseight.A.plusB.minusC.timesD.dividedby()23.Threesevenistwenty-one.A.plusB.minusC.timesD.divi

24、dedby()24.Forty-twosevenissix.A.plusB.minusC.timesD.dividedby()25.Therearedaysinayear.A.threehundredsixtyandfiveB.threehundredandsixty-fiveC.threehundredsandsixty-fiveD.threehundredsixty-five()26.Therearestudentsinthatschool.A.twothousandeight-sixB.twothousandeighty-sixC.twothousandandeighty-sixD.tw

25、othousandsandeighty-six()27.Ittookmetogetthere.A.twohoursandahalfB.twohoursandhalfC.twohourandahalfD.twohourandhalf()28.isaverytallboy.A.ThetwelveB.ThetwelvethC.ThetwelfethD.Thetwelfth()29.“Whatyearisit?”“Its.”A.nineteenhundredandninety-sevenB.nineteenandninety-sevenC.nineteenninetyandsevenD.ninetee

26、nninety-seven()30.“Whatsthedatetoday?”“Its.”A.TuesdayB.JuneFourthC.JunethefourD.Junethefourth()31.ThetrainfromShanghaiwillarrive.A.inquarterpastsixB.inaquarterpastsixC.atquarterpastsixD.ataquarterpastsix()32.Myfriendwasbornon.A.threeofJuly,1979B.thethirdofJuly,1979C.1979,JulythethirdD.1979,thethirdo

27、fJuly()33.islessthan.A.One-third;two-thirdsB.One-third;two-thirdC.First-three;first-threesD.One-third;one-three()34.Whichlessondidyoulearnyesterday?.A.LessonSevenB.LessonseventhC.The7LessonD.7Lesson()35.TherewillbeacomedyonTVatthisevening.A.sevenpastthirtyB.halfpastsevenC.seventhethirtyD.thirtytosev

28、en()36.Ittookmetofindoutthekeytothedrawer.A.oneandhalfhoursB.oneandahalfhoursC.oneandahalfhourD.oneandhalfhour()37.Imsotiredafterwalk.A.threehoursB.threehoursC.threehoursD.threehour()38.Therearestarsinthesky.A.millionofB.millionsofC.themillionD.amillionof()39.Thestreetiswide.A.twometersB.twometerC.t

29、hetwometerD.atwometer()40.Mostofthestarsaremuchbiggerthanthesun.Buttheyarelightyearsawayfromus.A.thousandB.thousandsC.thousandofD.thousandsof()41.ofthesurface(表面)oftheearthiscoveredwithwater.A.FirstthirdB.TwothirdsC.OnethreeD.Twothree()42.Therearepeopleinmyfamily.Weliveonthefloorinatallbuilding.A.fi

30、ve,sixB.fifth,sixthC.fifth,sixD.five,sixth()43.Thefloodhappened.A. in the summer of 1998B. in the summer of 1998sC. in 1998 of the summerD. in 1998s of the summer()44.-Howsoonwillyoufinishyourwork?-Inabout.A.oneandahalfmonthB.onemonthandahalfC.oneandhalfamonthD.amonthandhalf()45.Wewillhaveaholiday.W

31、hataboutgoingtoSuzhou?A.fivedaysB.fivedayC.five-dayD.five-days()46.Wearesurethecenturywillbringusmorehopes.A.twentieth-firstB.twentieth-oneC.twenty-oneD.twenty-first()47.Attheageof,hehadhisownlab.A.thirtyB.thirtiethC.thethirtiethD.thethirty()48.-Wouldyoulikesomefruit,madam?-Oh,yes.,please.A.5kiloban

32、anasB.5kilosofbananasC.5kiloofbananasD.5kilosofbanana()49.Thisbuildingisfora.A.familyofthreeB.threepeopleC.threepeoplesfamilyD.threepeople'sfamily()50.Lookatthetable.Tomwantstobuyahamburger,alargecokeandanice-cream.Howmuchwillhepay?Hamburger$Orangejuice$Hotdog$Coffee$Ice-cream$Water$Popcorn$Larg

33、ecoke$A.Threedollarsandsixtycents.B.Fivedollarsandthirty-fivecents.C.Fivedollarsandsixtycents.D.Twodollars.音標(biāo)語法詞匯閱讀綜合訓(xùn)練1. Fillintheblanksaccordingtothephonetictranscriptions.Lhibringy(»urnearf,Mary.2. IZ1iu：3O?li/getupatseven.3. Chinai料agreat/'kAntnAI. Theki“Ktlietwoyctil's111ter.54/wOd

34、'ra：d3(r)/stayatliomrundwatchW.II. Completethefollowingpassageswiththewordsorphrasesinthebox.Eachcanonlybeusedonce.(A)A.chairsB.amazingC.causeD.atleastE.dangerousHomeshouldbethesafestplaceofall,butcarelessnessmakesitoneofthemost6. Accidentscanhappenwhenpeopleusetablesand7asladdersandmisusekitche

35、nappliances.Manyhomeaccidentsinvolvefalls.Objectsthatareleftonfloorscanmakeothersfallover.Thekitchenisanotherplacewheremanyfallstakeplace.Cleaningupwateroffthefloorcanpreventmanyaccidents.Burnshappenmostlyathome,andmanyofthemhappeninthekitchen.Ahotovenisanobviousdangerthatcan8painfulburns.Cookingwit

36、hheatshouldbedonebyadults,or9withanadultaround.(B)A.withoutB.signsC.insteadofD.aswellasE.regularlyHousefiresarealsoaseriousproblem.Theyoftenstart10beingnoticed,soeveryhouseshouldhaveonesmokedetector(探測器)oneachfloor.Thedetectorscandetect,orsense,anysignofsmokeandwarnyouwithanalarm.Everyfamilymembersh

37、ouldknowwhattodowhenthereisafire.Onceagreedupon,thesesafetyrulesshouldbereviewedandpractisedtogether11.Thispracticewillcreateamuchsaferhome.Accidentsoftenhappeninpublicplaces12athome.Accidentstakeplaceintheseplacesfortwomainreasons.First,mostvisitorsareunfamiliarwiththeseplaces.Second,publicplacesar

38、eoftencrowded.Whileyouareintheseplaces,payattentionto13warningaboutanydangers.III. Completethesentenceswiththegivenwordsintheirproperforms.14. Asweallknow,Edisonwasoneofthegreatestintheworld.(science)15. Wemustkeepthebalanceof.(natural)16. Ofallthesubjects,Ilikebest.(chemical)17. Stayinginanair-cond

39、itionedroominsummermakesmefeel.(comfort)18.Teachersshouldbetoallthestudents.(patiently)19. Itistotalkloudlyinthereadingroom.(polite)20. Thedetectivestoryhasaending.Ilikeitverymuch.(drama)21. Allthestaffinthisbigcompanyhadexamlastweek.(medicine)IV.Completethefollowingsentencesasrequired.22. Cathyiske

40、enonplayingchess.(保持句意基本不變)Cathyisplayingchess.23. Mymotherseldomgoestoworkbycar.(改為反意疑問句)Mymotherseldomgoestoworkbycar,?24. Igotothecinemaonceamonth.(對劃線部分提問)doyougotothecinema?25. Itisveryimportanttopayattentiontoroadsafety.(改為感嘆句)itistopayattentiontoroadsafety!26. Thegovernmentwillwidenthisoldstr

41、eetnextyear.(改為被動(dòng)語態(tài))Thisoldstreetwillbythegovernmentnextyear.27. WhenwillMarygotravelling?Theprofessorwantedtoknow.(改為復(fù)合句)TheprofessorwantedtoknowMarygotravelling.28. paid,MissLi,inthatsupermarket,800yuan,anewcarpet,for(連詞成句)V.Choosethebestanswer.Mostpeoplehavedogsaspets.Butdoyouknowthatdogscanalsod

42、odifferentjobs?OnSeptember11,2001,terrorists(恐怖分子)attackedthe.andnearly3,000peopledied.Atthattimeover300dogsweretheretohelptofindandsavepeople.Theyareworkingdogs.TheU.S.armybegantousedogsduringWorldWarI.Now,about2,700dogsareworkinginAfghanistanandIraq,accordingtoDiscoveryNews.Thesefour-leggedsoldier

43、susetheirpowerfulsenseofsmelltofindbombs,drugsandenemies.Dogsare"man'sbestfriends”.Theycanhelpusworkbetter.Themostcommonjobsforworkingdogsareinsearchandrescue.Theycanfindlostpeopleorbodiesafterabigdisasterorinthewild.Guidedogscanhelpblindpeoplewalksafely.Thesedogscanunderstandsomewords.Guid

44、edogsarepopularintheU.S.andJapan.ManyguidedogsvisitedChinaduringtheBeijingOlympicGames.Therearealsodogsworkingwithdoctors.Theycanhelpautistic(自閉癥的)children.Thesechildrensometimesdon'ttalkandliketodothesamethingsagainandagain.AstudyfromCanadain2010showedthatdogscouldmakeautisticchildrenfeelrelaxe

45、dandsafe.Herdingdogsareimportanttosheepowners.Theykeepthesheepsafe.TheyarecommoninAustralia,NewZealandandsomepartsofChina.Nowadays,manypeoplehavethemaspets.Sodogsarenotonlyourpetsbutalsoourworkmatesnow.()29.WorkingdogsinAfghanistanandIraqhelpto.A. keeppeoplesafeB. findandsavepeopleC. findbombs,drugs

46、andenemiesD. keeptheenvironmentclean()30.Themostcommonjobsforworkingdogsarein.A. helpingblindpeoplewalksafelyB. searchandrescueC. helpingautisticchildrenD. keepingsheepsafe()31.GuidedogsarepopularinA. ChinaandJapanB. CanadaandtheU.S.C. AustraliaandtheU.S.D. theU.S.andJapan()32.AlotofguidedogscametoC

47、hinainA.2001B.2007C.2008D.2010()33. The underlined words in Chinese.A.狩獵犬B.牧羊犬“herdingdogs"inParagraph8meanC.警犬D.玩具犬()34Thebesttitleforthispassageis.A.Four-leggedsoldiersB.GuidedogsarepopularC.DogsareourpetsD.PeopleanddogsmakeagreatteamVI. Choosethebestwordsorexpressionsandcompletethepassage.If

48、youwanttoknowwhattheweatherwillbe_35_tomorrow,youcanfindaforecastinthenewspaper,onTV,orontheInternet.Untilabout150yearsago,however,forecastsweremadebypeople_36_theirsurroundings.Theypaidattentiontothecloudsandthewind.Theynoticedwhatanimalsweredoingandhowplantsweregrowing.Today,forecastingtomorrowsor

49、_37_weeksweatheristhejobofmeteorologists(氣象學(xué)者),scientistswhostudytheweather.Modernweatherforecastingdependsoncollectingenormous(巨大的)amountsofinformationallaroundtheworld._38_inthe1840s,AmericanscientistJosephHenrygottheballrolling(開始某項(xiàng)活動(dòng))formodernforecasting.Hesetupanetworkofabout150volunteerweather

50、observersacrossthe.Eventually,600observers_39_temperature,airpressure,andotherconditionsintheirareaeveryday.TheysentthisinformationbytelegraphtotheSmithsonianInstitutioninWashington,whereHenryworked.There,hedisplayedthenationsweatherconditionsonalargemap.ThesuccessofHenrysvolunteers_40_thecreationof

51、todaysNationalWeatherService.()35.A.asB.likeC.forD.about( ) 36. A. observingC. gaining() 37. A. last) 38. A. Back B. OverB. discoveringD. learningB. first C. everyD. nextC. Away D. Past) 39. A. measured B. praised C. tested D. increased) 40. A. stood for B. seemed like C. led toD. turned intoVII. Re

52、adthepassageandfillintheblankswithproperwords.CellphonesandtheInternethaveimprovedourlivesinmanyw_41_.However,theyhavealsobroughtanumberofworryingproblemsthatneedtobenoticed.Manycaraccidentsarec_42_bycellphones.NowpeoplecanusecellphonestogetontheInternet,anditisveryconvenient.ButsomedriversgetontheI

53、nternetwhentheyaredriving.Drivingneedsdriversattention.Thesec_43_driversareadangertousallbylookingattheircellphonesandnotattheroad.ManyofthedangersoftheInternetarewellknown.Childrenwhov_44_websiteswithouttheirparentspermission(允許)sometimestalktostrangers,andputthemselvesingreatd_45_.Peoplewithblogss

54、ometimespostembarrassingphotographsofothersontheirwebsiteswithoutpermission.TherearealsopeoplewhousetheInternettogetotherpeoplesp_46_information.CellphoneandInternetsafetytips:Ifyouneedtouseacellphonewhiledriving,usea“hands-free”phone.Indifficultdrivingsituationssuchasrainorsnow,donotuseyourphoneata

55、ll.TellyourchildrennottotalkwithanyonetheydonotknowontheInternet.R_47_togiveoutanyimportantpersonalinformationontheInternet.VIII. Answerthequestions.Ellawasleft-handed.Whenshegotinthethirdgrade,hermarkswereextremelypoorbecauseherteacher,MissMennis,couldntunderstandEllasterriblehandwriting.MissMennis

56、forcedEllatowritewithherrighthand.SheevenstoodoverpoorlittleEllaandmadesurethatthepupilwasntusingherlefthand.WhenEllagotinthefourthgrade,shehadamuchyoungerteacher,MissKindred.Shegavepupilshandwritingexercises.Oneday,sheaskedEllatostayintheclassroomafterclass.EllathoughtMissKindredwasgoingtopunish（懲罰）herbecauseofherbadhandwriting.MissKindredaskedEllatowriteafewwordswithherrighthand.ThenshemadeEllawriteafewwordswithherlefthand.Ellalookedupatherwhenshefinishedwriting,andtheteacherhadawarmsmileonherface.MissKindredgaveEllaawritingexercisetot