2018-2019学年高一英语上学期12月月考试题(含解析) (I)

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1、xx-2019学年高一英语上学期12月月考试题(含解析)(I)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。Itiseasiertofloatintheoceanthanitistofloatinaswimmingpool.Doyouknowwhy?Oceanwaterisfullofsalt—andsaltwatercanholdupmoreweightthanfreshwater.Seeforyourself!YouWillNeed:●3

2、cupsofwarmwater●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.Pouritslowlyoverthebackofthespoonintothejarsothatthetwoliquidswillnotmixtogether

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

4、aydown.1.Intheexperiment,whatshouldyoudorightafteryoupourthewateroverthespoon?A.Addthesalttothewater.B.Stirthesaltintothewater.C.Placethepotatointhejar.D.Pourwarmwaterintothejar.2.InStep4oftheexperiment,whydoyoupourthewateroverthespoon“slowly”?A.Itiseasiertoseewhatyouaredoing.B.Itpus

5、hesthefreshwatertothebottom.C.Itwillkeepthewaterfromingout.D.Itwillkeeptheliquidsfrommixingtogether.3.Inwhichstepoftheexperimentdoyouaddthesalt?A.Step1B.Step2C.Step3D.Step4【答案】1.C2.D3.B【解析】本文介绍了一个证明盐水的浮力比淡水的浮力大的实验。【1题详解】C细节理解题。根据YouWillDo:中的5 Gently placethepotatointothejar.Donotdrop

6、it.可知，在实验中，当你把水倒在勺子上后，你应该把土豆放入坛子中。故选C.【2题详解】D细节理解题。根据Addanother1.5cupsofwater.Pouritslowlyoverthebackofthespoonintothejarsothatthetwoliquidwillnotmixtogether中的sothatthetwoliquidwillnotmixtogether指这两种液体不要混在一起。故选D.【3题详解】B细节理解题。根据YouWillDo:中的2Add1/3cupofsalt.可知，要在第2步时加盐。故选B。BCandogsandc

7、atsgetalongwellinthesamehome?Peoplewhoarethinkingaboutgettingadogasafriendfortheircatareworriedthattheywillfight.Arecentresearchhasfoundthatifthecatistakenbackhomebeforethedog,andiftheyareintroducedwhenstillyoung(lessthan6monthsforcats,ayearfordogs),itishighlyprobablethatthetwopetswi

8、llgetalong s