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教案备课库《八年数学假期检测试题》真题及答案
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ChinesepeopleoftenwatchboatandmakingzongzionDragonBoatFestival.
Turnatthefirstcrossingandtherestaurantisonyourleft. A.toright B.theright C.right D.righting
WeusuallyraiseournationalonMondaysontheplaygroundofourschool.
AfricacomefromAfricatheyspeakEnglish.
Weshouldsaveelephantsanddon'tbuythingsivory. A.madefrom B.madeof C.madein D.madeby
IhavealotofhomeworktodosoIambusy. A.afew B.alittlebit C.abitof D.kind
Icanseefourboystudentandfivemanteacherhere.
—Couldyoujusttellhimtocallmeback? —. A.That'sright B.Goodidea C.Noproblem D.Ok
函数y=中自变量x的取值范围是.
Canyoutakeamessageme? A.to B.with C.for D.on
Whatadogit’ssmallandlovely.
Thereisn'taDragonBoatFestivalintheUSsoit'slikenightforZhuHuiandhishostfamilyA.anyother B.theother C.other D.others
【定义表述】我们约定在平面直角坐标系中经过某点且平行于坐标轴或平行于两坐标轴夹角平分线的直线.叫该角的特征线.例如点P24的特征线有x=2y=4y=x+2y=-x+6.【定义理解】直接写出点Paba≠b所有的特征线.【定义应用】如图在平面直角坐标系中有正方形OABC点B在第一象限AC分别在x轴和y轴上抛物线y=x-m2+n经过BC两点顶点P在正方形OABC内部点P有一条特征线是x=3.1求此抛物线对应的函数表达式.2点Q在与一三象限角平分线平行的点P的特征线上当AQ+BQ的值最小时求这个最小值.3点M是AB边上除点A外的任意一点连结OM将△OAM沿OM折叠点A落在点A'的位置当点A'在平行于坐标轴的P点的特征线上时将抛物线y=x-m2+n向下平移使其顶点落在OM上求平移距离.
分别写出下列各问题中的函数关系式某市民用电费标准为每度0.50元求电费y元关于用电度数x的函数关系式.
Thereisabankthepolicestationtherestaurant. A.betweenand B.acrossfrom C.nextto D.infrom
Lisalikesreadingbooksintheandshecanalsoborrowsomebooksfromit.
Iforgotbuythebooklastweek.Iamaforgetboy.
foodisreallyterrificIenjoyedmyselfinlastyear.Thai
Treesarereallyimportanttotheourenvironmentwemuststop. A.cutthemdown B.tocutthemdown C.cuttingthemdown D.cuttingdownthem
Elephantsaregreatdangerbecausepeoplecutdownmanytreessoelephantsarelosingtheirhomes.A.in B.at C.on D.for
ThelandscapeoftheGreatWallislikea.ItisreallyaplaceofinterestinChina.
ThegiraffearereallyscaryIdon’tlikethem.
ManyChangchunsenjoyinOuyaShoppingMallthat'soneofthebiggestintheworld.shop
Whatanimaldoyouthinkisscaryintheworld?Tigers.
Therearetwobiginourcitywecanseemanyanimalsthere.
Ilovewatchingthemonkeysaround. A.climbed B.climbing C.toclimb D.climb
Don’tkillelephantsforit'sverycruelandweshouldstopbuyingthingsmadeofit.
将长为20m的绳子围成一个矩形设矩形的一边为xm面积为ym2用x的代数式表示y为.
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