before going outside in the morning, many of us check a window thermometer阅读理解答案

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1、Beforegoingoutsideinthemorning,manyofuscheckawindowthermometer阅读理解答案　　根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余项。（说明：E请填涂AB；F填涂CD；G填涂ABC）　　Beforegoingoutsideinthemorning,manyofuscheckawindowthermometer(温度计)forthetemperature.Thishelpsusdecidewhattowear.　　34.Wewantourfoodtobeacert

2、aincoldnessintherefrigerator.Wewantitacertainhotnessintheoven.Ifwedon’tfeelwell,weuseathermometertoseeifwehaveafever.Wekeepourroomsacertainwarmthinthewinterandacertaincoolnessinthesummer.　　Notallthethermometersusethesamesystemtomeasuretemperature.WeuseasystemcalledtheFahrenhe

3、itscale.ButmostothercountriesusetheCentigradescale.Bothsystemsusethefreezingandboilingpointsofwaterastheirguide.35.　　Themostcommonkindofthermometerismadewithmercuryinsideaclearglasstube.Asmercury(oranyotherliquid)becomeshot,itexpands.Asitgetscolder,itcontracts.Thatiswhyonhotd

4、aysthemercurylineis　　　　highintheglasstube.36.　　First,takeaclearglassjuicebottlethathasacap;fillthebottlewithcoloredwater.Tapaholeinthecenterofthecapusingahammerandthicknail.Putthecaponthejar.Thenstickaplasticstrawthroughthenailhole.　　37.　　Finally,placeawhitecardontheoutsideof

5、thebottleandbehindthestraw.Nowyoucanseethewaterlevereasily.　　38.Asthetemperaturegoesdown,thewaterwillcontract,andtheleverinthestrawwillcomedown.Perhapsyouwillwanttokeeparecordofthewaterleverinthestraweachmorningforaweek.　　A.Nowthatyouknowthisruleyoucanmakeathermometerofyourow

6、nthatwillwork.　　B.Peopleusethermometerswhicharemadebythemselveswhentravellingaroundtheworld.　　C.Weuseanddependonthermometerstomeasure　　　　thetemperatureofmanyotherthingsinourdailylives.　　D.Thewaterwillriseinthestraw.Asthetemperatureoftheairgoesup,thewaterwillexpandandriseevenh

7、igher.　　E.Thermometersmeasuretemperature,byusingmaterialsthatchangeinthesamewaywhentheyareheatedorcooled.　　F.Takewax(youmayuseanoldcandleifyouhaveone)andmeltsomeofitrightwherethestrawisstruckintothecaptosealthemtogether.　　G.Theylabeltheseindifferentways.OntheFahrenheitscalewa

8、terfreezesat32degreesandboilsat212degrees.OntheCelsiusscalewaterfree