省浏阳一中2014-2015学年高一英语下学期第三次阶段性测试试卷(常用版)

省浏阳一中2014-2015学年高一英语下学期第三次阶段性测试试卷（常用版）(可以直接使用，可编辑完整版资料，欢迎下载）

湖南省浏阳一中2021-2021学年高一下学期第三次阶段性测试试卷（英语）省浏阳一中2014-2015学年高一英语下学期第三次阶段性测试试卷（常用版）(可以直接使用，可编辑完整版资料，欢迎下载）总分：150分时间：90分钟第一部分听力技能（共两节,满分30分）做听力技能时，请先在试卷上作答。听力技能结束前，你将有两分钟的时间将第1至15小题的答案转涂到答题卡上。将第16至20小题的答案转写到答题卡上。第一节听力理解（共15小题；每小题1.5分，满分22.5分）听下面6段对话，每段对话后有两个或两个以上小题，从题中所给的A.B.C选项中选出最佳选项，并标在试卷的相应位置。听每段对话前，你将有时间阅读各个小题。每小题5秒钟；听完后将给出5秒钟的作答时间。每段对话读两遍。Conversation11.Howdoesthemanlook?A.Tall.B.Strong.C.Outofshape.2.Whatwillthewomandotonight?A.Gotothegym.B.Gotothecinema.C.Dohomework.Conversation23.Whathappenedtothewomanyesterday?A.Shewaslate.B.Shewassick.C.Shewashurt.4.Howwillthewomangohome?A.Bycar.B.Bybus.C.OnfootConversation35.Whatkindofmusicdoesthemanlikebest?A.Classicalmusic.B.Rock.C.Jazz.6.Whocanplaytheviolin?A.Thewoman.B.Theman’swife.C.Theman.Conversation4.7.Whatwasthewomandoing?A.WatchingTV.B.Readingapaper.C.SurfingtheInternet.8.Whatdoweknowabouttheaccidentdescribedbythewoman?A.Itwasmadeupbythewoman.B.Amanwasseriouslyinjured.C.Ithappenedyesterday.9.Whatdoesthewomando?A.Awriter.B.Anactor.C.Apublisher.Conversation510.Whatdoweknowaboutthewoman’ssister?A.Sheworksinacompany.B.Shestudiesabroad.C.Sheisaboss.11.Whatwillthewomandothissummer?A.LearnEnglish.B.TeachChinese.C.GotoWeihai.12.WhywillthemangotoLondon?A.Tostudy.B.Tovisithisparents.C.Totravel.Conversation613.Whendoestheconversationtakeplace?A.OnNewYear’sDay.B.OnMother’sDay.C.DuringChristmas.14.Howdoesthewomanfeel?A.Helpless.B.Terrible.C.Nervous.15.Wherearethespeakers?A.InJapan.B.InChina.C.InAmerica.第二节笔录要点（共5小题；每小题1.5分，满分7.5分）听下面一段材料，将第16至20小题的信息补充完整。每小题不超过三个单词。听材料前，你将有时间阅读各个小题。每小题5秒钟；听完后，各小题将给出15秒钟的作答时间。本段材料读两遍。Jenny’sflatLocationOnCai’eStreet,nearherschoolPositionOnthe16._________floorofaseven-floorbuildingRoomsAsittingroom,abedroom,abathroomanda17._________Equipment(设施)Abed,asofa,adeskandsome18.___________Squaremeter（平方米）19.______________20.________800yuanpermonth第二部分知识运用（共两节，满分30分）第一节单項填空（共10小题；每小题1.5分，满分15分）从A.B.C.D选项中，选出可以填入空白处的最佳选项。并在答题卡上将该项涂黑。(

)21._____astudy,peoplewhooftenstayuptoolatearemorelikelytodieofheartdisease.A.WiththehelpofB.BecauseofC.AccordingtoD.Asaresult(

)22．SheunderstoodwhatIwastalkingabout，________itwasthefirsttimewehadspokentogether.A.whether B.eventhoughC.asthough D.Since(

)23.Ifyou________go，atleastwaituntilthestormisover.A.canB.mayC.mustD.will(

)24.Thatwhitebuildingwhichis________isourteachingbuilding,surroundedbymanygreentrees.A.twenty-meter-high

B.twenty–meterhighC.twentymeterhigh

D.twentymetershigh(

)25.Theroad______anditwillbefinishedbytheendofnextyear.A.isbuiltB.isbeingbuiltC.hasbeenbuiltD.wasbuilt(

)26.Asmanyasfivecoursesareprovided,andyouarefreetochoose______suitsyoubest.A.whateverB.whicheverC.wheneverD.wherever(

)27.Mydreamhousewouldhaveagarden____Icouldhavepartieswithmyfriendsinit.A.sothatB.aslongasC.asifD.evenif(

)28.ExplorerRobertBallard_______fortheTitanicformorethan20yearsbeforehefoundit.A.hadsearchedB.hassearchedC.searchedD.wouldsearch(

)29.Theydidn’tagreetosellthehouse____windowfacestoalakeatalowprice,______wasdisappointing.A.whose;whichB.whose;thatC.which;whichD.that;that(

)30.Ifweworkwithastrongwill,wecanovercomeanydifficulty,________greatitis.A.whicheverB.wheneverC.howeverD.whatever第二部分完形填空（共10小题，每小题1.5分。满分15分）读下面短文，掌握其大意，然后从第31至第40小题所给的A、R、C.D选项中，选出最佳选项，并在答题卡上将该选项涂黑。WhydoIwanttogotocollege?Noonehaseveraskedme__31_aquestion.ButmanytimesIhaveaskedmyself.Ihave__32__awholevarietyofreasons.__33__importantreasonisthatIwanttobeabetterman.Manythingsmakehumanbeingsdifferent__34__orbetterthanorevensuperiortoanimals.Oneofthemostimportantthingsis__35__.IfIfailtoreceivehighereducation,myeducation__36__.AsIwanttobeafully__37__man,Imustgetawell-roundededucation,whichgoodcollegesanduniversitiesaresupposedto__38__.Iknowonecangeteducatedinmanyways,butcollegesanduniversitiesare__39__thebestplacestoteachmehowtoeducatemyself.OnlywhenIamwell-educated,willIbeabetterhumanbeingandbeableto__40__fitintosociety.31.A.quiteB.so C.such D.another32.A.comeupwith B.agreedwithC.beenfedupwithD.gotonwellwith33.A.MostB.Themost C.More D.Much34.A.to B.aroundC.between D.from35.A.education B.weather C.temperature D.science36.A.finished B.don’tfinish C.willnotfinish D.hasfinished37.A.develops B.developed C.developing D.develop38.A.improve B.graduate C.hear D.provide39.A.between B.among C.inside D.outside40.A.good B.wellC.better D.best第三部分阅读技能（共两节，满分40分）第一节阅读理解（共10小题，每小题3分。满分30分）读下列短文，从每题所给的A、R、C.D选项中，选出最佳选项，并在答题卡上将该选项涂黑。ACantreestalk?Yes,butnotinwords.Scientistshavereasonstobelievethattreesdocommunicate(交际)witheachother.Notlongago,researcherslearnedsomesurprisingthings.Firstawillowtreeattackedinthewoodsbycaterpillars(毛毛虫)changedthechemistryofitsleavesandmadethemtastesoterriblethattheygottiredoftheleavesandstoppedeatingthem.Thenevenmoreastonishing,thetreesentoutaspecialsmell---asignal(信号)causingitsneighborstochangethechemistryoftheirownleavesandmakethemlesstasty.Communication,ofcourse,doesn’tneedtobeinwords.Wecantalktoeachotherbysmiling,raisingourshouldersandmovingourhands.Weknowthatbirdsandanimalsuseawholevocabularyofsongs,sounds,andmovements.Beesdancetheirsignals,flyingincertainpatternsthattellotherbeeswheretofindnectar(花蜜)forhoney.Sowhyshouldn’ttreeshavewaysofsendingmessage?41.Itcanbeconcludedfromthepassagethatcaterpillarsdonotfeedonleavesthat______.A.arelyingonthegroundB.haveanunpleasanttasteC.beesdon’tlikeD.haveanunfamiliarshape42.Thewillowtreedescribedinthepassageprotecteditselfby______.A.growingmorebranchesB.communicatingwithbirdsandbeesC.changingthechemistryofitsleavesD.shakingcaterpillarsoff43.Accordingtothepassage,thewillowtreewasabletocommunicatewithothertreesby______.A.wavingitsbranchesB.givingoffaspecialsmellC.droppingitsleavesD.changingthecolourofitstrunk44.Accordingtothispassage,beescommunicateby______.A.makingspecialmovementB.touchingoneanotherC.smellingoneanotherD.makingunusualsound45.Theauthorbelievesthattheincidentdescribedinthepassage______.A.cannotbetakenseriouslyB.shouldnolongerbepermittedC.mustbecheckedmorethoroughlyD.seemscompletelyreasonableBAyoungfatherwasvisitinganoldneighbor.Theywerestandingintheoldman'sgarden，andtalkingaboutchildren．Theyoungmansaid，“Howstrictshouldparentsbewiththeirchildren？”

Theoldmanpointedtoastring（绳子）betweenabigstrongtreeandathinyoungone．“Pleaseuntie（解开）thatstring，”hesaid．Theyoungmanuntiedit，andtheyoungtreebent（弯）overtooneside．“Nowtieitagain，please，”saidtheoldman，“butfirstpullthestringtightsothattheyoungtreeisstraightagain．”

Theyoungmandidso.Thentheoldmansaid,“There,itisthesamewithchildren.Youmustbestrictwiththem,butsometimesyoumustuntiethestringtoknowhowtheyaregettingon.Iftheyarenotyetabletostandalone,youmusttiethestringtightagain.Butwhenyoufindthattheyarereadytostandalone,youcantakethestringaway.”

46.Thestoryisabout＿＿＿＿．

A.howtotakecareofyoungtrees

B.howstrictparentsshouldbewiththeirchildren

C.howtheyoungfathershouldgetonwithhisoldneighbor

D.howtotieanduntiethestring

47.Theyoungmanuntiedthestring＿＿＿＿．

A.inordertothrowitaway

B.sothatbothofthetreeswouldgrowstraight

C.onlytofindthatthethinneronebentovertooneside

D.inordertolettheoldmanteachhim

48.Accordingtowhattheoldmansaid,whencanthestringbetakenaway？＿＿＿＿＿＿．

A.Whentheoldmanhasleft

B.Afteryouhaveuntiedit

C.Whentheyoungmanhasuntieditnexttime

D.Whentheyoungtreegrowsstrongenough

49.Atlasttheoldmantoldtheyoungman＿＿＿＿＿＿．

A.thatheshouldbestrictwithhischildreniftheycouldnotyetstandalone

B.thatheshouldalwaysbestrictwithhischildren

C.thatheshouldbehardonthem

D.thatheshouldtiehischildrenuntiltheyarereadytostandalone

50.Inthestorytherelation（关系）ofthebigstrongtreetothethinoneislikethatof＿＿.

A.theyoungfathertotheoldneighbor

B.parentstotheirchildrenC.theoldneighbortothechildrenoftheyoungfather

D.adultstotheirparents第二节回答问题（共5小题，每小题2分。满分10分）细读下面短文，根据所读内容回答第51至55小题，尽可能简要地回答问题，并将答案转写到答题卡上。ItwasMother’sDay,butMandywasunhappy,becauseshewasfarawayfromherparents.Inthemorning,MandycalledhermothertowishherahappyMother’sDay,andhermothertoldheraboutthebeautifullilacs(丁香）inthegarden.Laterthatday,whenMandytoldherhusbandaboutthelilacs,hesaid,“Iknowwherewecanfindsome.”Sotheydrovetherewiththeirchildren.Onahill,theysawmanybeautifullilacs.Mandyenjoyedthemalot.Carefully,shepickedsome.Ontheirwayhome,whentheywerepassinganoldcottage(村舍）,Mandysawanoldwomansittinginachair.Shehadnochildrenwithher.Theystoppedthecar.Mandywalkedtotheoldwoman,puttheflowersinherhandsandsmiledather.Theoldwomanthankedherandsmiledhappily,too.WhenMandycamebacktothecar,herchildrenasked,“Whoisthatoldgranny(奶奶）?Whydidyougiveherourflowers?”“Idon’tknowher,“Mandyreplied.“Butit’sMother’sDay,andshehasnochildren.Justthinkhowmuchthoseflowersmeantoher.”51.WhywasMandyunhappyonMother’sDay?52.HowdidMandy’sfamilygototheplacewithlilacs?53.Wheredidtheyfindmanybeautifullilacs?54.Didtheypassanoldcottageontheirwayhome? 55.WhydidMandygivetheflowerstotheoldwoman?第四部分写作技能（共三节,满分50分）第一节双向翻译（共8小题，每小题2.5分。满分20分）请根据上下文内容，将文中划线部分译成汉语或英语，并将答案转写到答题卡上。AJune20thofthisyearwastheDragonBoatFestival.(56).它是许多中国传统节日之一.Howdopeoplecelebrateit?Let’shavealook.Ontheday,peopleeatZongzitorememberQuYuan.Zongziisricedumplings.Thereareusuallydifferentthingsinsidezongzi.Inthenorth,zongziwithjujube(枣)ormashedredbean(红豆沙）isthemostpopular.Whileinthesouth,peoplelikezongziwithmeatoryolkbest.That’straditionalzongzi.(57)如今，我们有各种各样的粽子。Theyarefilledwiththingslikefruits,nuts,chocolateandevenice-cream.Also,zongzicomesindifferentshapes,fromsquaretorectangle(长方形）.Andalthoughsomepeoplestillcookzongziathome,manyothersbuythematthesupermarket.Dragonboatracesare,ofcourse,animportantpartofthefestival.Theseboatslooklikedragons.Theyraceinriversorlakes.Teamsrow(划）theirboatsasfastastheycantotrytowinfirstprize.(58).Adrummeroftenstandsatthefrontoftheboattoplaythedrum(鼓).BInancientChina,manypeoplebuiltwallsaroundtheirstatestoprotecttheirland.WhenQinShihuangbroughtChinatogetherin221BC.(59).hehadallthesewallsjoinedup.Sincethattime,thewallshaveoftenbeenrepairedoraddedto,especiallyduringtheMingDynasty.Uptonow,infact,(60).长城是6300公里长andisoneofthegreatestwondersoftheworld.TheGreatWall,(61).whichrunsovermountains,throughvalleysandacrossdeserts,wasveryhardtobuild.Hundredsofthousandsofpeopleworkedonthewall.(62).许多人因此丧失了生命.Therefore,thewallwasnotonlyjustmadeofearthandstones,butofbloodandflesh.TheGreatWallrunsfromwesttoeastinthenorthofChina.Nowadays,(63).theGreatWalloffersalotoftouristsagoodplacetoenjoythebeautyofourcountry.第二节，阅读填空（共5小题，每小题2分。满分10分）细读下面短文，根据所读内容在文后64至第68小题的空格里填上适当的单词或短语，并将答案转写到答题卡上。注意：每空不超过三个单词。Playingsportsisalotoffun.Butgettinghurtbringspain.Rememberthesefourwaystopreventsportinjuriesinthegame.Wearprotectivegear(防护装备).Wearingprotectivegearhelpskeepyoufromgettinghurt.Helmetsarethemostcommonprotectivegear.Theyprotectyourheadwhileyou'replayingsomesportssuchasbaseballandskateboarding(滑板运动).Warmup.It'snotagoodideatostartplayingwithoutwarmingup.Youcantakeajog.ItisagoodwayofwarmingupInthisway,yougetyourselfreadytoplay.Warmingupyourmusclesandpracticingasporthelpkeepyousafe,too.Knowtherulesofthegame.Whenplayersknowtherulesofthegame,fewerinjurieshappen.Youandtheotherplayersknowwhattoexpectfromeachother.Forexample,youknowthatinsocceryoucan'thitaplayer’slegs.Don’tplaywhenyou'reinjured.Thisisreallyimportant.Ifyoulovesports.youmaywanttogetbackinthegame,evenafteraninjury.Butplayingwhenyou'rehurtisabadidea.Itcanleadtoanevenworseinjury.Nowyouknowhowtopreventsportsinjuries.Ifyoufollowtheserules,youcanstaysaferwhileyouareplayingsports.(64)._______toPreventSportInjuriesWearprotectivegear.(65)______arethemostcommonprotectivegeartoprotectyourheadwhenyouplaybasketball.(66) ______Takingajogisagoodwaytowarmupyourmusclesandhelpkeepyousafe.Knowtherulesofthegame.Ifyouknowtherulesofthegame,(67)happen.Don’tplaywhenyou'reinjured.Ifyouwanttogetbackinthegame,even(68),itcanleadtoanevenworseinjury.第三节情景作文(满分20分)假设你是李华，你们学校即将举行主题为“WhyshouldwelearnEnglish?”的演讲赛。请你根据所给要点写一篇演讲稿：提高学习语言的能力；有助于了解异国文化；能够结识更多的朋友。注意：1.词数：100左右；2．可以适当增加细节，以使行文连贯。浏阳一中2021年上学期高一第三次阶段性测试试卷答案1-5BCBAC6-10:BBABA11-15:BCCBB16:second17.kitchen18.chairs19.60/Sixty20.Rent21-25CBCDB26-30BAAAC31-35CABDA36-40.CBDBC41-45BCBAD46-50BCDAB51.Becauseshewasfarawayfromherparents.52.Bycar.53.Onahill.54.Yes,theydid.55.BecauseitwasMother’sDay,andtheoldwomanhadnochildren.56.itisoneofmanytraditionalfestivals.57.Nowadays,wehaveallkindsofzongzi.58.一个鼓手经常立在船头击鼓。59.他命人把所有城墙连接起来。60.theGreatWallis6,300kilometerslong/inlength.61.它跨过高山，穿过峡谷，横过沙漠。62.Manypeoplelosttheirlivesbecauseofit/diedfromit.63.长城给游客欣赏祖国的美好风景提供了好去处。64.Ways/FourWays/How 65.Helmets 66.Warmup67.fewinjuries 68.afteraninjury第四节书面表达(满分20分)Dearfriends,Goodmorning.IamLiHua.Ifeelveryluckytohavesuchagoodchancetomakeashortspeechhere.Mytopictodayis“WhyshouldwelearnEnglish?”.Asisknowntousall,EnglishisaninternationallanguagesoitisverynecessaryforustolearnEnglish.Firstofall,learningEnglishcanhelpusexpressourselvesindifferentways.Welearnnewexpressionsandgrammar,whichmakesitpossibleforustolearnnewlanguageswellinthefuture.Second,learningEnglishopensthedoortoanotherculture.AfterwelearnEnglish,wewillbeabletoknowandunderstanditsculturewell.Lastbutnotleast,learningEnglishwellhelpsusmakemorefriendswithdifferentpeople,nomatterwhatcountrytheycomefrom.Besides,wecanalsocommunicatewithmorepeopleinEnglishontheInternet.Inaword,learningEnglishmeansalotforus.Weshouldworkhardandlearnitaswellaspossible.That’sall.Thankyou.2021～2021厦门双十中学下学期七年级数学试卷(满分：150分；考试时间：120分钟)一、选择题。(每小题4分，共32分)1．下列图形中表示∠1与∠2是对顶角的是()112111222ABCD2．在平面直角坐标系中，点A(2021，－2021)在()A．第一象限B．第二象限C．第三象限D．第四象限3．有下列各数，0.456，，3.14，0.80108，，0.3，0.101001…，，其中无理数有()A．1个B．2个C．3个D．4个4．下列命题是真命题的是()A．若a＜b，则a2＞b2B．若|x|＝|y|，则x＝yC．若a＞|b|，则a2＞b2D．若a＜1，则a＞5．如图是小刚的一张脸，他对妹妹说如果我用(0，2)表示左眼，用(2，2)表示右眼，那么嘴的位置可以表示成()A．(1，0)B．(－1，0)C．(－1，1)D．(1，－1)CDBACDBAE13425A．∠1＝∠2B．∠3＝∠4C．∠D＋∠BCD＝180°ECABDD．∠ECABD7．如图，直线AB∥CD，∠A＝70°，∠C＝40°，则∠E等于()A．30°B．40°C．60°D．70°8．一只跳蚤在第一象限及x轴、y轴上跳动，在第一秒钟，在从原点跳动到(0，1)，然后接着按中箭头所示方向跳动[即(0，0)→(0，1)→(1，1)→(1，0)→…]，且每秒跳动一个单位，那么第25秒时跳蚤所在位置的坐标是()A．(4，0)B．(5，0)C．(0，5)D．(5，5)二、填空题。(每小题4分，共32分)9．将点P向左平移2个单位长度，再向上平移1个单位长度得到P1(－1，3)，则点P坐标是。10．－的立方根的相反数是。11．如图所示，直线AC、CD被直线EF所截，若∠1＝∠2，则∠AEF＋∠CFE＝度。DBCAGEF12．如图所示，AB∥CD，直线EF分别交AB、CD于E、F，EG平分∠BEF，FG平分∠DFE，∠FEG＝60DBCAGEF13．已知点P(a，a＋3)在直角坐标系的y轴上，则点P的坐标为。14．把命题“等角的补角相等”写成“如果…，那么…”的形式为：15．若实数y＝，则x2＋y2＝。16．如图，把一张长方形纸片ABCD沿EF折叠后ED与BC的交点为G，且D、C分别在M、N的位置上，若∠EFG＝55°，则∠1＝°。三、解答题。(共86分)17．(8分)(－2)3×－×(－)2－18．(8分)推理填空：如图，点D、E、F分别在AB、BC、AC上，且DE∥AC，EF∥AB，下面写出了证明“∠A＋∠B＋∠C＝80°”的过程，请补充完整。证明：∵DE∥AC，EF∥AB()∴∠1＝∠，∠3＝∠()∵AB∥EF(已知)∴∠2＝∠()∵DE∥AC(已知)∴∠4＝∠()∴∠2＝∠A(等量代换)∵∠1＋∠2＋∠3＝180°(平角定义)∴∠A＋∠B＋∠C＝180°(等量代换)19.(8分)已知在平面直角坐标系内有点P(x，y)，其中x、y满足|3x＋3|＋(x＋y)2＝0：(1)求点P的坐标；(2)点Q(x＋1，y－1)在坐标平面内的什么位置？说明你的理由？(3)点P先向平移个单位长度，再向平移个单位长度就能与点Q重合。20．(8分)已知实数a、b、c在数轴上的位置如图所示，化简：caOb|a|＋|a＋b|－－2caOb21．(8分)某中学在创建绿色和谐校园活动中要在一块三角形花圃里种植两种不同的花草，同时拟从A点修建一条花间小径到边BC。(1)若要使修建小路所使用的材料最少，请在图中画小路AD，你的理由是。(2)3月12日是植树节，图中树需进行平移，请将树根A移到F处，作出平移后的树。CCAB22．(10分)(1)在平面直角坐标系中画出下列各点：A(－2，－3)、D(0，2)(2)点B的坐标是，点C的坐标是；(3)点A到x轴的距离是个单位长度，点D到原点的距离是个单位长度；(4)顺次连接O、B、C、D，求四边形OBCD的面积。23．(10分)已知－2的整数部分是a，小数部分是b，求a2－b的值。24．(12分)如图所示，CD⊥AB于D，点F为BC上任意一点，FE⊥AB于E，且∠1＝∠2＝30°，∠3＝84°，求∠ACB的度数。AABCGDEF3124525．(14分)如图所示，已知AB∥DE，∠B＝60°，CM平分∠DCB，CM⊥CN，垂足为C，求∠NCE的度数。EECDANMB参考答案选择题（每空4分）：12345678ADCCADAB填空题（每空4分）：(1,2)10.211.180°12.30°13.(0,3)如果两个角是等角的补角，那么它们相等。416.110°解答题：解答：∠C=∠1，（两直线平行，同位角相等）∠3=∠B，（两直线平行，同位角相等）∠2=∠4，（两直线平行，内错角相等）∠4=∠A，（两直线平行，同位角相等）则由以上得∠2=∠A（等量代换）由∠1+∠2+∠3=180°代入以上得∠A+∠B+∠C=180°解答:∵x+1=-1+1=0，y-1=1-1=0，∴点Q的坐标为（0，0），在坐标平面内的原点位置；点P先向右平移1个单位长度，再向下平移1个单位长度就能与点Q重合。CACABCABCABECABD（1）点到直线的距离中，垂线段最短，故答案为垂线段最短；、（3）如图 解答：（1）A、D如图所示；（2）B（4，0），C（3，2）（3）点A到x的轴的距离是3个单位长度，点D到原点的距离是两个单位长度；故答案为：（4，0），（3，2），3，2；（4）四边形OBCD的面积=解答：∵，∴，∴的整数部分是5，∴的整数部分是3，小数部分是，ABCABCGDEF31245解答：∵CD⊥AB，EF⊥AB，∴EF∥CD，∴∠2=∠5=∠1=30°，∴DG∥BC，∴∠ACB=∠3=84°解答：∵AB∥DE，∠B=70°，ECDANMB∴∠DCB=180°-∠B=110°，ECDANMB∵CM平分∠DCB，∴∠BCM=∠DCB=×110°=55°，∵CM⊥CN，垂足为C，∴∠BCN=90°-∠BCM=90°-55°=35°，∴∠NCE=∠BCE-∠BCN=70°-35°=35°学校姓名学校姓名班级考号密封线内不要答题密封线内不要答题（时间：120分钟总分：100分）一、选择题（3×10分）1、若分式的值为，则的值为（）Ａ． Ｂ． Ｃ． Ｄ．或2、把分式中的x，y都扩大2倍，则分式的值（）A．不变B．扩大2倍C．扩大4倍D．缩小2倍3、计算+的结果是（）ABC1D-14、已知x>l，m=，n=，则m，n的大小关系为()A．m<nB．m=nC.m>nD不能确定5、.一件工作,甲独做a小时完成,乙独做b小时完成,则甲、乙两人合作完成需要()小时.A.B.C.D.第6题图6、函数y=ax+b与y=bx+a的图象在同一坐标系内的大致（）第6题图7、若时，则在下列函数①，②，③，④中，值随值的增大而增大的是（）A①②B②③C①③D②④8、某气球内充满了一定质量的气体，当温度不变时，气球内气体的气压（kPa）