黑龙江省鹤岗市第一中学2018-2019学年高一英语12月月考试题

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1、黑龙江省鹤岗市第一中学2018-2019学年高一英语12月月考试题第一部分：阅读理解（共两节，40分）第一节（共15小题；每小题2分，共30分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。AItiseasiertofloatintheoceanthanitistofloatinaswimmingpool.Doyouknowwhy?Oceanwaterisfullofsalt—andsaltwatercanholdupmoreweightthanfreshw

2、ater.Seeforyourself!YouWillNeed:●3cupsofwarmwater●Measuringcup(量杯)●Wide-mouthedjar●Salt●Spoon ●Raw(生的)potatoYouWillDo:1.Pour1.5cupsofwarmwaterintothejar.2.Add1/3cupofsalt.3.Stir(搅拌)untilthesaltispletelydissolved.4.Addanother1.5cupsofwater.Pouritslowlyov

3、erthebackofthespoonintothejarsothatthetwoliquidswillnotmixtogether. 5. Gently placethepotatointothejar.Donotdropit.WhatWillHappen:Thepotatowillsink—butonlyhalfway!Why?Saltwaterisheavierthanfreshwater,soitwillstayonthebottom.Thefreshwaterwillremainontop.

4、Thepotatoisheavierthanthefreshwater,butitislighterthanthesaltwater.Thatiswhythepotatowillsinkhalfwaydown.1.Intheexperiment,whatshouldyoudorightafteryoupourthewateroverthespoon?A．Addthesalttothewater.                B．Stirthesaltintothewater.C．Placethepo

5、tatointhejar.                D．Pourwarmwaterintothejar.2.InStep4oftheexperiment,whydoyoupourthewateroverthespoon“slowly”?A．Itiseasiertoseewhatyouaredoing.B．Itpushesthefreshwatertothebottom.C．Itwillkeepthewaterfromingout.D．Itwillkeeptheliquidsfrommixingt

6、ogether.3.Inwhichstepoftheexperimentdoyouaddthesalt?A．Step1           B．Step2           C．Step3           D．Step4BCandogsandcatsgetalongwellinthesamehome?Peoplewhoarethinkingaboutgettingadogasafriendfortheircatareworriedthattheywillfight.Arecentresearch

7、hasfoundthatifthecatistakenbackhomebeforethedog,andiftheyareintroducedwhenstillyoung(lessthan6monthsforcats,ayearfordogs),itishighlyprobablethatthetwopetswillgetalong swimmingly.Intwo-thirdsofthehomescatsanddogshaveagoodrelationship. However,itwasn’tall

8、sweetnessandlight.Therewasareportedcoldnessbetweenthecatanddogin25%ofthehomes,whileaggression(侵略，好斗)andfightingwerefoundin10%ofthehomes.Onereasonforthisisprobablythatsomeoftheirbodylanguagesarejustdifferent.Forexample,whenacattur