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如图，一艘轮船在A处测得灯塔C在北偏西15°的方向上，该轮船又从A处向正东方向行驶40海里到达B处，测得灯塔C在北偏西60°的方向上，则轮船在B处时与灯塔C之间的距离（即BC的长）为（ ）
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如下图所示一艘轮船以每小肘20海里的速度沿正北方向航行在A处测得灯塔C在北偏西30°方向轮船航行2小
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15分OneSundaymorninginAugustIwenttolocalmusicfestival.IleftitearlybecauseIhadanappointment1latethatday.Myfriendswalkedmetothebusstopandwaitedwithme2thebusarrived.IgotonthebusandfoundaseatnearthebackandthenInoticedaman3sitatthefront.He4pretendthatatigertoywasrealandgivingitavoice.Hemustbe5mentaldisabled. Behindhimwereotherpeopleto6hewastryingtotalkbutaftersomeminutes7walkedawayandsatnearmelookingannoyed Ididn'twanttobelaughedatfortalkingtohimbutIdidn'tlikeleavinghim8hisowneither. AfterawhileIrosefrommyseatandwalkedtothefrontofthebus.Isatnexttothemanandintroducedmyself.Wehad9amazingconversation.HegotoffthebusbeforemeandIfeltveryhappytherestofthewayhome. I'mgladImadeachoice.Itmade10ofusfeelgood. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
8分 AttentionTimHortons StainlessSteelTravelMugOwners LidRecall﹣15ozStainlessSteelTravelMug Afaultatthecuphasbeenrecognized.Thefaultmayresultinsomelidsliftingslightlyfromthebodyofthemugandcouldprobablycauseinjuryfromhotliquidleaking.Thereforewehavegivenanimmediatelidrecallnotice. ThisRecallnoticeisrelatedonlytoTimHortons15ozStainlessSteelTravelMugssoldbetweenOctober2002andJanuary2003.Thebottomofthemugisstampedwithdistributor's经销商nameThermoServ.Thereisnoprintingonthehandleofthemug. AtTimHortonswevalueourcustomers'safetyaboveanythingelse.SowhetheryourlidisleakingornotintheinterestofyoursafetywearerequestingthatyoubringyourmugtoyournearestTimHortonsexcludingEssoTimHortonswheretheywillexchangethelidforanewlidthatfitssafety.ThenewlidswillbeavailableFebruary12003pleasedonotuseyourmuguntilyouexchangethelid. Here'swhatyoudo *Pleasedonotuseyourmuguntilyouhaveexchangedthelidforanewone. *NewlidswillbeavailableFebruary12003. *ReturnyourtravelmugtoaTimHortonsstoreasofFebruary12003. *Yourlidwillheexchangedforanewlid. Ifyouprefertoreturntheentiremugbringitbackatanytimeforafullrepayment. Ifyouhaveanyquestionsregardingthisrecallpleasecontactusat TollFreeNumber1﹣888﹣601﹣1616 830am﹣500pmEasternStandardTime TimHortons 1.Thisadvertisementistryingto. A.introduceanewtypeofmugs B.persuadepeopletobuyanewlid C.informpeopleofexchangingalid D.warnagainstthedangerofusingthemug 2.Theadvertisementismainlyaimedatthosewho. A.oftentravelaround B.have15ozStainlessmugs C.wanttobuy15ozstainlessmugs D.aresellingthemugs 3.AccordingtotheadvertisementwhichofthefollowingstatementsisNOTtrue? A.Peopleshouldstopusingthemugimmediately. B.Peoplecangetthemoneybackiftheyreturnthemug. C.Peoplewithquestionscancallthecompanyfreeofcharge. D.PeoplecanreturnthelidbetweenOctober2002andJanuary2003. 4.FromthepassagewecanlearnthatTimHortons. A.isaclubfortravelers B.wantstomakemoremoney C.caresaboutthecustomers'safety D.isanorganizationhelpingcustomers
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在棱长为1的正方体ABCD﹣A1B1C1D1中M和N分别为A1B1和BB1的中点那么直线AM与CN所成角的余弦值是
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某一家族中的肥胖症不仅由第18号染色体上的Rr基因决定而且还与第2号染色体上的Mm基因有关R基因存在时不能形成黑皮素4受体m基因纯合时不能形成阿黑皮素原其机理如图1所示．图2是该家族系谱图其中Ⅰ﹣1是纯合体Ⅰ﹣2的基因型为mmRr下列有关叙述错误的是
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10分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除把多余的词用\划掉. 修改在错的词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改仅限一次. 2.只允许修改10处多者从第11处起不计分. IoftenquarrelaboutmymotheroverwhetherIcanwatchTVafterschool.Sheholdsviewthatseniorthreestudentshavetomakefullyuseofeveryminutetoworkhardattheirlessons. ItseemstomethatonceIamallowedtodothatI'llunabletocontrolmyselfandforgetallaboutmystudy.Shealsothinksitisbadformyeye.ButIreallycan'tacceptherideas.InmyopinionwatchTVcansetmymindatrestafteraday'shardworks.Besidesitisimportantforustoknowwhathadhappenedathomeandatabroad.Thusweshouldn'tbeforbiddentowatchTV.
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10分1Beingangrydoesn'treallysolvemuchbutwhatpeopledowhentheyfeelangryisimportant.Thegoalistocalmdownandtrytosolvewhatisbotheringyou.Thisishardforsomekidsandadultstoo.Insteadofcalmingdownsomekidsmightkeepgettingmoreandmoreupsetuntiltheyexplodelikeavolcano!2Theirangermightbesostrongthattheylosecontroloftheirtemper.Theymayactinwaysunacceptableandhurtful.Peoplemaysaythatsomeonehastroublecontrollingtheirtemper.3 Somekidsmightgetsoangrythattheyscreamattheirparentsbreaksomethingorevenworsehittheirbrothersorsisters.4Howeverit'snotOKforakidtodoanyofthosethings.Kidsdon'twanttoactinthiswaybutsometimesangryfeelingscanbehardtomanage.Sowhattodo? Wellthegoodnewsisthatkidsdon'tjusthavetokeepmakingthesamemistakesoverandoveragain.5Imagineyourtemperasapuppy小狗insideyouthatneedssometraining.Thepuppyisnotbad﹣itwillprobablyturnoutagreatdog.Itjustneedstolearnsomerulesbecauserightnowthatpuppyiscausingsomeproblemstoyou. A.Youcantrainyourtemper. B.Youdon'twanttocausetrouble. C.Kidsshouldbeallowedtoexpresstheirfeelingsevenangryones. D.Everybodygetsangrysometimes. E.Infacttheyusuallymeanthatakidbehavesbadlywhenfeelingangry. F.Insteadofthinkingofthepersonyou'reangrywiththinkofsomethingelse. G.Somekidsgetangrymoreoftenormoreeasilythansomeotherkids. 1. 2. 3. 4. 5.
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30分 TheBlindBoy Ablindboysatonthestepsofabuildingwithahatbyhisfeet.Heheldupa1whichsaidIamblindpleasehelp.Therewereonlyafew2inthehat. Amanwaswalkingby.Hetookafewcoinsfromhis3anddroppedthemintothehat.He4tookthesignturneditaroundandwrotesomewords.He5thesign6everyonewhowalkedbywouldseethenewwords. Soonthehatbeganto7.Alotmorepeopleweregivingmoneytotheblindboy. Thatafternoonthemanwhohad8thesigncametosee9thingswere.Theboy10hisfootstepsandaskedWereyoutheonewhochangedmysignthismorning?Whatdidyouwrite? ThemansaidIonlywrotethetruth.Isaidwhatyousaidinadifferentway11.WhathehadwrittenwasTodayisan12dayandIcannotseeit. Doyouthinkthefirstsignandthesecondsignweresayingthesamething? 13bothsignstoldpeopletheboywasblind.Butthefirstsignsimplysaidtheboywasblind.Thesecondsigntoldpeopletheywereso14thattheywerenotblind. Shouldwebesurprisedthatthesecondsignwasmore15? Bethankfulforwhatyouhave.16lifegivesyoua100reasonstocryshowlifethatyouhave1000reasonsto17.Faceyourpastwithoutregret.18yourpresentwithconfidence自信.Prepareforthe19withoutfear.Keepthefaithand20thefear. 1.A.cover B.sign C.board D.note 2.A.cashes B.treasures C.pennies D.coins 3.A.pocket B.can C.backpack D.case 4.A.still B.then C.already D.yet 5.A.puton B.putout C.putoff D.putback 6.A.incase B.nowthat C.sothat D.asthough 7.A.mixup B.showup C.fillup D.makeup 8.A.changed B.prepared C.supported D.reached 9.A.what B.why C.where D.how 10.A.realized B.recognized C.found D.discovered 11.A.though B.but C.yet D.still 12.A.average B.successful C.harmonious D.beautiful 13.A.Afterall B.Inthelongterm C.Ofcourse D.Asamatteroffact 14.A.happy B.disappointed C.lucky D.strange 15.A.effective B.brave C.surprising D.scientific 16.A.Once B.When C.Until D.Because 17.A.smile B.exist C.survive D.prove 18.A.Lookinto B.Searchfor C.Dealwith D.Dependon 19.A.tomorrow B.adventure C.future D.sunrise 20.A.preserve B.charge C.skip D.drop
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8分Themanagerofasmallbuildingcompanywasverysurprisedtogetabillfortwowhitemicewhichoneofhisworkmenhadbought.Hesentfortheworkmanandaskedhimwhyhehadhadthebillsenttothecompany. Wellheworkmananswered.yourememberthehousewewererepairinginNebraskalastweekdon'tyou?Oneofthethingswehadtodotherewastoputinsomenewelectricalwires.Wellinoneplacewehadtopasssomewiresthroughapipethirtyfeetlongandaboutaninchacrosswhichwasbuiltintosolidstoneandhadfourbigbendsinit.NoneofuscouldthinkhowtodothisuntilIhadagoodidea.Iwenttoashopandboughttwowhitemice.Oneofthemwasmaleandtheotherfemale.ThenItiedathreadtothebodyofthemalemouseandputhimintothepipeatoneend.whileBillheldthefemalemouseattheotherendandpressedhergentlytomakehersqueak尖叫.Whenthemalemouseheardthefemalemouse'ssqueaksrushedalongthepipetohelpher.Isupposehewasagentlemaneventhoughhewasonlyamouse.Anywayasheranthroughthepipepulledthethreadbehindhim.Itwasthenquiteeasyforustotieoneendofthethreadtotheelectricalwiresandpullthemthroughthepipe. 1.Whywastheworkmansentfor? A.Becausehemighthavecheatedthemanager. B.Becausehehadbrokentheruleofthecompany. C.Becausethemanagerthoughthehadsenthimawrongbill. D.Becausethemanagerwantedtopraisehisgoodwork. 2.Whatdidtheworkmanbuythetwomicefor? A.Tohelpsolvesomeproblemsintheirwork. B.Toseewhethermicecouldgothroughsomebends. C.Totestthelovebetweenthetwomice. D.Tocheckhowtheirworkwenton. 3.Howdidthetwomicehelptheworkmanout? A.Thetwomicerantoeachotherinthepipe. B.Themalemouseranwiththethreadfromoneendtotheother. C.Theworkmandrovethemalemousetosavethefemalemouse. D.Thetwomiceranthroughthepipewiththewires. 4.Whatmaybethemostpossibleendingofthestory? A.Thetwomicewerekeptaspets. B.Boththeworkmanandthemiceweredrivenaway. C.Manyotherworkmenwilldothesame. D.Thebillwasacceptedbythemanager.
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