滬教牛津版初中英語七年級上冊全套單元測試題【含答案】

1、 PAGE 11 PAGE 11/44滬教牛津版初中英語七年級上冊全套單元測試題【含答案】Unit1Makingfriends檢測題(本檢測題滿分：100一、單項(xiàng)選擇（每小題 1 分，共 10 分）Lilyis Englishgirl.Andsheis friendlygirl.A.a；anB.a；aC.an；aD. an；anIliveinaflatclose XiliLake.A.fromB.toC.inD.onAnnagoesswimming her mother everySunday.A.andB.forC.withD.soJasonsfavourite are English an

2、dmaths.A.hobbiesB.subjectsC.mountainsD.riversTom fromCanada.HeisfromtheUS.A.isnotB.notisC.noisD. isnois your newbike?It is black and red.A.HowmuchB.Howoldisyourpetdog?Its ten months old.A.HowlongB. Howmanyare youlate?Because I got up late. Sorry.A.WhyB.WhatHeisin .A. Class two, Grade sevenC. Three C

3、lass, Seven Gradedoyougotoschool?By school bus.A.HowB.WhattimeC.WhatcolourD. WhatdayC.HowoldD. HowyoungC.WhenD.WhichB. class 3, grade 7D. Class Two, Grade SevenC.WhyD.Which三、完形填空（每小題 2 分，共 30 分）Vanillaismybestfriend.Sheisalovelygirlwithtwobig,beautifuleyes.Butshealwayshidesthem 21 a pair of blackgla

4、sses.Oneday,however,I 22 endedourfriendship.Irememberthatdayclearly.Wewere 23 intheclassroom.The teacherwasgivingusourresultsofaChineseexam.Ihaddonebadly.Ifeltso 24 thatIwouldnttalkto anyone.Atlunchtime,Ievenstayedintheclassroomalone.Suddenly,Ihearda 25 .ItwasVanilla.“Youlookveryunhappyshesai. Whasw

5、rongIlookedatherforawhile,butsaid26.IknewVanillahadgotagoodmark(分?jǐn)?shù)）intheexam.Ithoughtshewas 27 me.Isatsilently,butVanillagoaway,she 28 askingme questions:“Isitbecauseoftheexam?Doyouwantmetotellyoutheright 29 ?”Ilookedawayfromher.When Ilookedupagain,Vanillahadgone.Andsohadmyexampaper!Ididntknow 30 to

6、do.Ilookedformypaper everywhere,but couldnt findit.Intheafternoon,Vanillacameuptomydeskand 31 memyexampaperback.Ilookedatitandgotabig32 .Vanillahadwrittentherightanswersnexttoeveryoneofmymistakes.How 33 shewas!Myfaceturned red.Iwantedtohugher,butIonlyheldherhandsandsaid,“Thankyou.”Thatafternoon, 34

7、VanillaandIwere onthewayhome,Ifeltquitehappyandthankedheragain.Weare 35 bestfriends.21.A.behindB.belowC.amongD.near22.A.slowly 23.A.singing 24.A.happy 25.A.voice 26.A.everything 27.A.knocking at 28.A.forgot 29.A.answers 30.A.that 31.A.gave 32.A.pain 33.A.kind 34.A.whether 35.A.stillB.quickly B.sitti

8、ng B.sad B.sound B.something B.shouting at B.kept B.exams B.who B.turned B.interest B.brave B.when B.yetC.nearly C.dancing C.funny C.noise C.anything C.laughing at C.practiced C.results C.which C.carried C.surprise C.healthy C.after C.alsoD.happily D.playing D.excited D.cry D.nothing D.pointing at D

9、.remembered D.notes D.what D.moved D.fun D.careless D.unless D.ever四、閱讀理解（每小題2分，共16分）AIts two weeks before Christmas in England and Mrs Smith is very busy. She buys a lot of Christmas cards to sendtoherfriendsandtoherhusbands friends.Sheputsthemonthetableintheroom.Then,whenherhusband comes home from

10、 work, she says to him, “These are the Christmas cards for your friends. Could you please write the cards and I cooksupper?”MrSmithdoesntsayanythingandwalksintohisstudyroom,afterawhile,hecomeswithaboxfullof Christmascards.Heputsthemonthetableandsays,“Theyarefromlastyear.I忘記）tosendthem.”WhatdoesMrsSm

11、ithbuybeforeChristmas?A. Many presents.C. Lots of Christmas cards.WhydoesMrsSmithbuyChristmascards?A. She wants to give them to her husband.C. She wants to give them to her friends.WhatdoesMrsSmithwantherhusbandtodo?Shewantshimtobuysomemorecards.C. She wants him to cook supper.A lot offlowers.D. Lot

12、s of nice food.B. She likes them very much.D. She wants to sell them.B. She wants him to send the cards.D.ShewantshimtowritetheBItisaverycommonthingforapersontohaveagoodfriend.MygoodfriendisDiana.Sheisarichandproud girl.Sheoftenthinksthatsheistoogoodforanyone,sonobodywantstobeherfriend.Onedayaftersc

13、hool,IwaswaitingforDianawhenViviencameuptome.Shegavemeabiscuit.Iacceptedit.We talkedandjoked,andfromthenon,IbegantospendmoretimewithVivienthanwithDiana.Ifeltalittleuneasy.Afterafewdays,IwenttoseeDianaforsomesnackswhenViviencameandsatwithme.Sheofferedmeasandwich.ShealsoofferedonetoDiana,butDianarefus

14、edit.Shewalkedaway.IwasangrywithDianaforbeingso rude andthoughtless.“Never mind,”Vivien said,“Im used to it.”Afterschool,ItriedtocatchupwithDiana.Whilewalkinghome,Itriedtocorrectherattitude,butshewouldnotlisten to me.She said,“Go and join your dear Vivien.I know you make new friends and forget the o

15、ld ones.”Forthenextfewweeks,wedidnottalktoeachother.Then,oneday,DianacametoVivienandme,sayin, mreallysorryaboutwhatIaspoiled寵壞的girl,butIalsoneedgoodfriendsjustlikeyou.Wouldyouplease forgive原諒me?”VivienandIlookedateachotherandsmiled.Fromthenon,Diana,VivienandIhavebeenbest friends.Thewriterwasangrywit

16、hDiana .becauseshewastoogoodforanyonewhen Diana refused Vivienssandwichthoughsheaskedthewritertoforgiveso Diana walkedawayAccordingtothepassage,itisclearthat .DianaandthewriterhadbeengoodfriendsDiana didnt likesandwichesVivien didnt want to make new friends atallthewriterforgotheroldfriendsaftersheh

17、adnewonesViviens saying “Im used to it.”showsthat .someonerefusedtogiveherthingsVivienusedtoberudetoothersshe liked to berefusedsomepeoplewererudetoherbeforeDianaaskedVivienandthewritertoforgiveherbecause .they didnt spend much time withhersherealizedshewaswrongVivien and the writer didnt talk toher

18、shewasarichandproudgirlThereadingismainlyabout .themistakeamongthethreefriendstwobestfriendsataschoolthree friends at aschoolthetroublebetweenDianaandVivien五、 用所給單詞的適當(dāng)形式完成句子（每小題 1 分，共 10 分）Sheisa(German)girl.Alltheteachersarevery( friend).Dont copy. You must do thehomeworkby( you).Iwanttomake(friend

19、)withyou.Itisa( girl )blog.Ihavetwo( old )sisters.Im good at( play )basketball.Id like(drink)acupoftea.Hisdreamis(be)aboss.Myhobbyis( read )books.六、書面表達(dá)（共 24 分）假如你叫李華，你的朋友田甜將去英國。請你將她的基本情況介紹給你英國的朋友 Rita,希望她們能成為朋友，并希望 Rita 能夠去機(jī)場接她。請根據(jù)以下要點(diǎn)給Rita 寫一封信。提示：1.介紹田甜的年齡、外貌、性格以及愛好。2.田甜將去英國GeorgeSpencerSchool學(xué)習(xí)一

20、年，并將乘飛機(jī)于8月1日下午4點(diǎn)到達(dá)倫敦希羅機(jī)場（HeathrowAirport）。注意：1.詞數(shù) 80 左右。2.信的開頭和結(jié)尾已為你寫好，不計入總詞數(shù)。June 26th, 2007Dear Rita,Howiseverythinggoing?Idliketointroducemybestfriend,TianTian,you. Will you pleasekindenoughtomeetherattheairport?Manythanks.Best wishes.Yours,LiHua參考答案：參考答案：CEnglish 是以元音音素開頭的單詞，故其前用an，friendly 是以輔音

21、音素開頭的單詞，故其前用a。Bclose是固定短語，意為“靠近”。C句意：安娜每周日都和她媽媽一起去游泳。由句意可知，此處用表示“和一起”的介詞故選with。BEnglishmathsB。Abefrombenot。C由答語“它是黑紅相間的”可知問句問的是顏色，提問顏色用whatcolour。C10個月大”可知問句問的是年齡，提問年齡用howold。Abecausewhy提問。D表示“幾年級幾班”時，各單詞的首字母都應(yīng)大寫，且年級和班級放在數(shù)字前面。A由答語“乘校車”可知問句問的是方式，故用how提問。A句意為“但是她總是把它們藏在一副黑眼鏡后面?！薄霸谥蟆庇媒樵~behind。C由下文可知此處

22、是“我差點(diǎn)兒結(jié)束了我們的友誼”。故用nearly。B由后句“老師正給我們語文考試的成績。我考得很差?！笨芍揪鋺?yīng)理解為“我們坐在教室里”。B由上句“我考得很差?！笨芍拔矣X得很傷心”。故用sad。AVanillavoice。D本句用了轉(zhuǎn)折連詞but,那么句子應(yīng)意為“我看了她一會,但什么也沒說。”表示否定的“什么沒”用nothing。C上文中提到我考得不,而Vanilla成績,所以此處應(yīng)為“我認(rèn)為她在嘲笑我”?！俺靶Α庇胊t。B上句是“她沒有走開”。那么應(yīng)該是“繼續(xù)詢問”?！袄^續(xù)做某事”用keepdoingsth.B。A此處由句意“是因?yàn)榭荚噯?？你想讓我告訴你正確答案嗎？”可知用answers。

23、D+動詞不定式”作賓語。此處意為“我不知道該做什么”，“什么”用what。A上文中提到試卷不見此處說Vanilla出現(xiàn)在我的桌旁把試卷還給了我”?！鞍堰€給用give.back。故選 A。C由后句“Vanilla已經(jīng)把正確答案寫在每一處我做錯了的題旁邊”。由此可知“我看著試卷并且常吃驚”。故用surprise。A由上句“Vanilla已經(jīng)把正確答案寫在每一處我做錯了的題旁邊”。可知是多么友好“好”用kind。B,Vanillawhen。Astill。C由文中ShebuysalotofChristmascardstosendtoherandtoherhusbands可知C。C由文中Shebuysa

24、lotofChristmascardstosendtoherfriendsandtoherhusbands可知C。DCouldyoupleasewritethecardsandIcookD。Balso offered one to Diana, but Dianarefused Diana拒絕了VivienB。ADiana是好朋友。D由“NevermindD。B由最后一Diana說的那些話reallysorryaboutwhatIdid.aspoiledgirl,butI also goodfriendsjustlike可知Diana已經(jīng)意識到自己的錯誤，故B。CC。German45.frie

25、ndly46.yourself47.friends48.girls49.elder50.playingdrink52.tobe53.readingOne possible version:Dear Rita,Howiseverythinggoing?Idliketointroducemybestfriend,TianTian,toyou.Sheis16yearsold.Sheisalovelygirlwitharoundfaceandbigeyes.Sheisverykindandeasytogetalongwith.Shelikesreadingandmusic,andshe isespec

26、iallygoodatplayingthepiano.Herfavouritesubjectsarephysicsandchemistry.NowsheisgoingtoGeorgeSpencerSchoolinEnglandtostudyforoneyear.Ihopeyoucanbegoodfriends.Sheis arrivingatHeathrowAirportat4pmonAug.1st.Willyoupleasebekindenoughtomeetherattheairport?Manythanks. Bestwishes.Yours, Li HuaUnit2Dailylife檢

27、測題(時間：60 分鐘；滿分：100 分)一、單項(xiàng)選擇（1 10 分）Myhomeisnearmyschool,soIamA.alwaysB.sometimeslate.C. oftenD.seldomWhendoesyourmorningbreakstart?9:50.A.ToB.AtC.InD.AboutClassesbeginat8:00amandat 3:30pm.A.overB.endC.endsD.overIt is 7:00 am now!I think its timefor you school.A.forB.togotoC.goD. gotodoyoulikeEnglish

28、best? Because I want to visit England in the future.A. WhenB. WhyC. HowD. What21. WhatSamafterclass?He takes part in the school band practice.A.is;doB.does;doC. do;doD.does；doesTomisgoodatplaying.A.pianoB.apianoC.pianosD. thepianoWewillhaveaschooltripnextweek. .A.HaveagoodtimeB. WewillC. Im happy to

29、 hear itD. Dont forget itDo youhavetime me?Ihavesomethingimportanttotellyou.A.talkingtoB.totalktoC.talktoD. talkwithIts too late now. I think theshop is .A.openB.closedC.opensD.close三、完形填空（每小題 2 分，共 20 分）Paris(巴)hasabeautifulname,theCityof26.Doyouknow27itmeans?Manybeautifulbuildings arelightedat28.T

30、hestreetsarevery29.Whenyou30in Paris, you neednt turn31headlights(車燈) even after dark.Parisisfullof充滿)lifealldayandallnight.Butthisisnotthe 32 reason原因foritsbeautifulname. Forhundredsofyears,Parishasbeenthecentreofscienceandart. 33 scientistsandartistshavecometo 34 here. For this reason, people 35 i

31、t the City of Lights.A.FlowersB.CarsC.LightsD.RiversA.whatB.howC.whereD.whenA.noonB.nightC.dayD.eveningA.blackB.darkC.noisyD.brightA.walkB.goC.driveD.liveA. offB.downC.outD.onA.onlyB.otherC.anyD.anotherA.NoB.FewC.ManyD. AfewA.studyB.driveC.playD. havedinnerA.makeB.callC.buildD.find四、閱讀理解 （每小題 2 分，共

32、20 分）AMr.Greenonceworkedinabigcompany.Hewasquitebusysothathecouldntdoanyreading.Sohegaveup hisjobandopenedabookshopinthecenterofthetown.Itwasntbigbutallthebookswereniceandmostpeople likedtobuysomethere.Whentheshopwasclosed,hecouldreadathome.Heknewalotandmanylearnedpeople weregladtomakefriendswithhim

33、.ItwasSundayanditwascoldoutside.Mr.Greenwasverybusy.Atnineintheeveningallthebuyersleftbuta womanwasstillthere.Shewasdressedupandseemedtobewaitingforsomebodythere.Standingbytheshelves,she lookedoverthebooksoneafteranother,andmadetheminaterriblemess.Mr.Greencameuptoherandasked, “Excuse me, madam. What

34、 can I do foryou?”“Your books are not interesting at all,” said the woman, “I want a delicious one.”“Thats easy,” Mr. Green smiled. He brought out a cookbook and said, “Here you are, madam.”WhydidMr.Greenchangehisjob?He didnt likereading.Hewastoobusytoreadbooks.Helikedthelifeinthecenterofthetown.Hew

35、antedtowriteacookbookhimself.Mostpeoplelikedtobuybooksintheshopbecause .thebookshopwasinthecenterofthetownallthebookswerenicecookbooksit was verylargethebookstherewereallgoodforpeopleWhich isWRONG?Mr.Greenlikedtolendhisbookstothelearnedpersons.WhenMr.Greencamebackhomefromthebookshop,heoftendidsomere

36、ading.ManylearnedpeoplelikedtomakefriendswithMr.Green.AtnineonthatSundayeveningallthebuyersleftthebookshopexceptawoman.From the story we know that “l(fā)earned people” .people who arefreepeople who are studyinghardpeoplewhohavemuchknowledgepeoplewhohavemuchmoneyWhats the most suitable ending of thestory

37、?Mr.Greenwouldmakefriendswiththewoman.Mr.Greenwouldteachthewomanhowtocookdeliciousfood.Thewomanleftthebookshopwithoutbuyinganybooks.Thewomanboughtmanybooksinordertobealearnedperson.BAndyplaysbasketballforthechildrensbasketballclub.Heusuallygetsupataround5:30andrunsinhisschool from5:40to6:40.Afterrun

38、ning，hehasbreakfastat7oclock.Forbreakfast，heeatssomeeggsandvegetables.At around8：00，heplaysbasketballwithhisfriends.Theyplaybasketballforaroundfourhours.Atabouthavelunch.Forhaslotsofandfruit.At3oclockinthegoestothe childrensbasketballclub.Heisneverlatefortheclub.ThenAndyhasdinneratabout7:00.Afterdin

39、ner，hewatches basketballgamesonTV.Andyusuallygoestobedat10:30.WhendoesAndyusuallyruninhisschool?A.Inthemorning.B.Intheafternoon.WhatdoesAndyhaveforbreakfast?Vegetables andmeat.Fruit andeggs.Eggs andvegetables.Howlong （多久）doAndyandhisfriendsplaybasketball?A.Aroundfourhours.B.Aroundthreehours.What doe

40、s “He is never late for the club.”mean?Heisusuallylatefortheclub.Healwaysgoestotheclubontime.Hegoestotheclubat3:00.WhatdoesAndydoafterdinner?Hegoestobedat10:30.He playsbasketball.HewatchesbasketballgamesonTV.五、句型轉(zhuǎn)換（每小題 1 分，共 5 分）C. In the evening.Around twohours.WegotoShanghaitoseeourgrandparentstwi

41、ceaweek.)Whatdoyouthinkofyournewschool?)every,except,Igo,Saturday,school,day,to)Shewithherbestfriendoftenfliesakiteinthe)ShealwaysgoestotheSwimmingClubonTuesday)六、動詞填空（每小題 1 分，共 10 分）The Twins dont know how (play) football.Heoften(go)toschoolonfooteveryday.Ialways(go)totheparkonSundays.Hespendstwoho

42、urs (do)hishomeworkeveryday.Ioftenpractise (play)volleyball,soIcanplayitverywell.IfyouwanttowatchTV,youshould (finish)yourhomeworkfirst.There (be)somegoodnewsaboutourfootballteam.Id like (go) to the cinema because there is a newfilm.Wearealllookingforwardto (meet)you.Simonisbusy 做)hishomeworknow.七、翻

43、譯句子 （每小題 1 分，共 5 分）她經(jīng)常給她的朋友發(fā)電子郵件。因?yàn)槲夷軓闹蝎@取許多有關(guān)世界的信息。沒有時間在網(wǎng)上和朋友們聊天。我們的老師總是對我們很友好。, 就應(yīng)該多閱讀。八、書面表達(dá)（15 分）外籍教師 Richard 想了解一下你所在班級學(xué)生的到校方式。假如你是李華，請以“The way I go to school” 為題，寫一篇英語短文，向 Richard 介紹自己到校的方式。提示：（1）How do you go to school？（2）Why do you prefer to go in that way？要求短文須包括所有提示內(nèi)容并圍繞你所選擇的某種交通方式寫出二至三個理由

44、，可適當(dāng)發(fā)揮。文中不得出現(xiàn)真實(shí)的人名、校名和地名。詞數(shù)：6080個。（短文開頭已給出，不計入總詞數(shù)）The way I go to schoolIm LiHua. 參考答案參考答案1115BACABDBat。Bend，主語為復(fù)數(shù)，此處用原形。BItstimetodosth.“到了做某事的時間了”，為固定句型。故選B。Bbecausewhy提問。BSamdoes放到主語之前，主語后用動詞原形?！白觥庇胐o表示。Dplay后跟西洋樂器名詞時，西洋樂器名詞前需加定冠詞the。A上句說“我們下周將有一次學(xué)校旅行”，故此處應(yīng)該表示祝愿對方玩得愉快，故選A。BhavetimetodoB項(xiàng)。B由前句“現(xiàn)在太

45、晚了”可知后句應(yīng)為“我想商店關(guān)門了”，故選closed“關(guān)閉的”。C通過后面的內(nèi)容及最后一句可知，此處是說“巴黎有一個美麗的名字燈之城”。Ameanswhat。Batnight“在晚上”，為固定短語。D根據(jù)前面的內(nèi)容可推知，大街上很亮，故選Dbright“明亮的”。Cheadlights(車燈)C。Dturnon“打開”，符合文意。A由后面的內(nèi)容可知，上面說的不是唯一的原因。Cmany。A科學(xué)家和藝術(shù)家來這里應(yīng)該是做研究，故選A。Bcall“稱作”，符合句意。B was quite busy so that he couldnt do any reading.”可知“他很忙以至于他不能B。DI

46、twasntbigbutallthebookswereniceandmostpeoplelikedtobuysomeD。AA。ClearnedpeopleC。C解析：由第三段內(nèi)容可推知這位女士最后什么書也沒買。4145ACABCHowoftendoyougotoShanghaitoseeyourgrandparents?Howdoyoulikeyournewschool?IgotoschooleverydayexceptSaturday.Doesshewithherbestfriendoftenflythekiteinthepark?She doesnt always go to the Sw

47、imming Club on Tuesdayafternoon.toplay52.goes53.go54.doing55.playing56.finish57.is58.togo59.meeting60.doingSheoftensendsemailtoherfriends.IlikewatchingTV,becauseIcangetlotsofinformationabouttheworldfromit.Mysisterisverybusyeveryday,andhasnotimechattingwithfriendsontheInternet.Ourteachersarealwaysfri

48、endlytous.Ifyouwanttoknowmoreabouttheworld,youshouldreadmore.One possible version：The way I go to schoolIm Li Hua. I go to school on foot. I have several reasons for that.First,myhomeistwokilometersawayfromschool.Ittakesmeabout20minutestogetthere.Second,walking toschoolisakindofexercise.Itsgoodformy

49、health.Third,itsprettysafetowalktoschoolbecausethereisalotof trafficontheroadatthistimeofday.SoIprefergoingtoschoolonfoot.Itsreallyagoodchoice.Unit3The Earth檢測題(時間：60 分鐘；滿分：100 分).單項(xiàng)選擇（每小題 1 分，共 10 分）Bennysawthree climbing thewalls.A.thiefsB.thiefC.thievesTom, what arethose?Theyare .thieveA.deersB.a

50、deerC.deerD.deeresThere abookandtwopensonthedesk.A.isB.areC.beD./Theboyisthirsty,andhewouldlike .A.acupofteaB.abowlofriceC.aboxofchocolateD.apieceofbreadMaths my favouritesubject.A.isB.amC.areD.beItsimportant us to studyhard.A.toB.forC.onD.withTherearemanyanimalsonEarth.Somelive theland.Somelive the

51、water.A.under;onB.in;underC.on;underD. under;inWemuststop theanimals!A.killB.tokillC.killedD.killingDont rubbish into theriver!A.goB.throwC.pullD.pushForestsareveryimportant.Theyprovideus a lot ofthings.A.ofB.toC.withD.for.完形填空（每小題 1 分，共 10 分）Ifasnakebitesyou,takeaphotowithyourmobilephone!Itmaysavey

52、ourlife.Thisisthesurprisingof a Britishcook.OnedayHenryJacksonwasworkinginarestaurantkitchen.Hepickedupadishfromthetable,and22snakeappeared.andbithimonthehand.Afewdaysearlier,thesnakecametothe23fromAsiainaboxofbananas.Itclimbedoutoftheboxand24under thedish.“Iwenttotrytopickitupanditbitmeagain.Ithrew

53、it25thekitchen,anditlandedinthefridge.SoIclosed the door,” Mr Jackson said.Anyway,MrJacksonstayed26andhetookaphotoofthesnakewithhismobilephone.Soonhis27begantoacheandhewenttohospital.Thenhischestbegantohurt.Doctorscouldntsaywhatwaswrong28they didnt know what kind of snake it was.ThenMrJacksonremembe

54、redhismobilephonephoto.Thedoctors29ittoLondonZoo.Whentheythekindofsnake,theycouldgiveMrJacksontherightmedicine,andhelefthospitalthenextday.“Somyadviceisthis：Ifasnakebitesyou，pickupyourphone.Take30photofirstandthenshowthephototothedoctors,”suggestsMrJackson.“Oh,andifthesnakedoesntsmileforthephoto,wor

55、ry！”A.chanceB.adviceA.suddenlyB.nearlyA.gardenB.hospitalA.hungB.hidA.underB.intoA.coolB.noisyA.footB.legA.butB.thoughA.wroteB.sentA.hisB.her.閱讀理解（228分）C. excuseC. especiallyC.restaurantC.jumpedC.towardsC.pleasedC. handC. soC. solditsAbusinessD. fortunatelyD. schoolD. ranD.acrossD.afraidD. mouthD. be

56、causeD. taughtD. theirImaginethesituation.Youaredrivingaloneinadesertorona noideawhereyouare.Youpassedthelasthousetwohoursago.Then Itisnightanditiscold.Youhavenomobilephone.Whatdoyoudo? GPSwithyou.Thisinventionmaybeabletohelpyou.Itisadevice) (衛(wèi)星tofindtheusersposition (位置).Itcanfindyourpositiontowith

57、in cannotstartyourcar,butatleastyouwillknowwhereyouare.mountain. You yourcarbreaksdown. Well,nexttimetakea which uses satellites20 metres. A GPSGPS,whichmeansGlobalPositioningSystem,isasmallradioreceiver.Itlookslikeamobilephone.Youcan holditinyourhand,orputinyourpocket.Itissometimesputintoawatchorat

58、elephone.WealsofindGPSdevices incars,planes,orboats.Someofthesedeviceshaveelectronicmaps,soyouknowwhereyouare.Forexample,ina citytheycantellyouthenameofthestreet.TherearethreepartstotheGlobalPositioningSystem.Thefirstpartisthereceiver.Youcanholditinyourhand, orhaveitfixedintoyourcar,plane,etc.Thesec

59、ondpartisagroupofsatellitesorbitingtheEarth.Thereceiver contactsatleastfourofthesatellitesandcalculates計算itsposition.Thethirdpartofthesystemisanetworkof groundstations.Theyareallovertheworld.Theycontrolthesatellitesandmakesuretheyareworkingwell.SomepeoplethinkthatinthefuturetheGPSwillbeascommonasthe

60、mobile.Theyarebecomingcheaperand moreandmoreaccurate精確的）.TherearealsonewusesfortheGPS.Perhapstheywillbecomelikewatches. Everyonewillhaveoneandyouwillneverbelostagain.Accordingtothepassage,withthehelpoftheGPS,people .cantbelostinanewcitycant find their way in differentcountriescanlearnabouttheculture