2020-2021年七年级英语下册阅读理解试题集经典1.docx

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1、2020-2021年七年级英语下册阅读理解试题集经典1一、七年级英语下册阅读理解专项目练习（含答案解析）1．根据材料内容，选择正确答案。DLookupinthesky.Doyouseeanyclouds?Whatdotheylooklike?Somecloudsarefluffy（绒毛状的）andwhite,likecottonballs.Othersaredarkalmostblack,andmakeyouholdanumbrella.Atsunriseandsunset,cloudscanlookred,purple,oryellow---asi

2、ftheywerecoloredwithcrayons.Butwhatarecloudsanyway?Youcan'treachoutandtouchtheclouds,butyoucanmakeyourowninabottle.Youneed*anadulthelper*ahuge,emptyglassjar*ametalstrainer（过滤器）*hotwater*iceDotheseStep1.Haveyourhelperfillthejarwithhotwater,leaveittherefortwominutes,thenpouroutmo

3、stofthewater.Leavingjustaninchortwoatthebottomofthejar.Step2.It'syourturn,putthestraineroverthemouthofthejar,fillthestrainerwithice.Watchthejar.Whathappened?Acloudformedinthejar!Someofthehotwateratthebottomofthejarturnedintohotwatervapor（蒸汽）.Thewatervaporroseandmetwiththecoldai

4、rcomingofftheice.Whenthewatervaporcondensed,itformedacloud.Hotairrisesandcarrieswithitlotsofwatervapor,thehighertheairrises,themoreitcoolsdown.Soonthecoldaircan'tholdallthewatervaporsoitstartsturningintotinywaterdrops,andbecomesacloud.（1）Thistextmostlyabout.A.theweightofacloudC

5、.thecolourofclouds（2）WhatdoyouneedforStep1?B.whatmakesacloudD.whycloudsarefluffyA.Ajar.B.Astrainer.C.Ice.D.Crayons.（3）Themainpurposeofthelastparagraphistoshow.A.theimportanceoftheexperimentB.thereasonoftheexperimentC.theresultoftheexperimentD.thestepsoftheexperiment【答案】（1）B（2）

6、A（3）B【解析】【分析】1.文章第四行Youcan'treachoutandtouchtheclouds,butyoucanmakeyourowninabottle.你不能伸手去摸云,但是你可以用瓶子自己做。文章还提到了，需要的东西，以及步骤做法，最后还提到了andbecomesacloud.成为云。故选B。2.文章吧倒数第七行Step1.Haveyourhelperfillthejarwithhotwater,leaveittherefortwominutes,thenpouroutmostofthewater.Leavingjustaninch

7、ortwoatthebottomofthejar.step1.有你的帮手用热水把罐子装满,把它放在那里两分钟,然后倒出大部分水。在罐子底部只留下一两英寸。Ajar.一个罐子。Astrainer.一个过滤器。Ice.冰。Crayons.蜡笔。故选A。3.theimportanceoftheexperiment实验的重要性。thereasonoftheexperiment实验的原因。theresultoftheexperiment实验的结果。thestepsoftheexperiment实验的步骤。文章最后一段的大意：在罐子里形成的云!罐子

8、底部的一些热水变成了热水蒸汽（蒸汽）。水蒸气升上了冰,冷空气从冰上掉下来。水汽凝结后形成云。热空气上升并携带