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1、第32課閱讀理解孫老師特別提示：不是因?yàn)橛行┦虑殡y以做到，我們才失去自信，而是我們失去了自信，這些事情才難以做到！職稱(chēng)英語(yǔ)應(yīng)試技巧(內(nèi)部教材)白皮32頁(yè)閱讀理解解題順序1、抓中心，如果可能第一段多讀一點(diǎn)。2、讀題干并掃一下ABCD。3、分類(lèi)解題。4、不要把希望全部寄托在技巧上（找長(zhǎng)的像的），查字典能讀還是讀一下。職稱(chēng)英語(yǔ)應(yīng)試技巧(內(nèi)部教材)白皮32頁(yè)LifeintheUniverse宇宙注：該文中心在第一句橫線前后---宇宙中存在生命—生命可能與地球相似。Manyscientiststodayarecon
2、vinced深信的thatlifeexists存在elsewhereintheuniverse—lifeprobablymuchlikethatonourownplanet.Theyreasoninthefollowingway.Asfarasastronomers(天文學(xué)家)candetermine,theentireuniverseisbuiltofthesamematter.Theyhavenoreasontodoubtthatmatterobeysthesamelawsineverypartoft
3、heuniverse.Therefore,itisreasonabletoguessthatotherstars,withtheirownplanets,wereborninthesamewayasourownsolarsystem.Whatweknowoflifeonearthsuggeststhatlifewillarisewherevertheproperconditionsexits.Liferequirestherightamountandkindofatmosphere.Thiselimina
4、tesallthoseplanetsintheuniversethatarenotaboutthesamesizeandweightastheearth.Asmallerplanetwouldloseitsatmosphere;alargeronewouldholdtoomuchofit.Lifealsorequiresasteadysupplyofheatandlight.Thiseliminatesdoublestars,orstarsthatflareup(閃耀)suddenly.Onlysingl
5、estarsthataresteadysourcesofheatandlightlikeoursunwouldqualify.Finally,lifecouldevolveonlyiftheplanetisjusttherightdistancefromitssun.12Withaweakersunthanourown,theplanetwouldhavetobeclosertoit.Withastrongersun,itwouldhavetobefartheraway.Ifwesupposethatev
6、erystarintheuniversehasafamilyofplanets,thenhowmanyplanetsmightsupportlife?First,eliminatethosestarsthatarenotlikeoursun.Next,eliminatemostoftheirplanets;theyareeithertoofarfromortooclosetotheirsuns.Theneliminateallthoseplanetswhicharenotthesamesizeandwei
7、ghtastheearth.Finally,rememberthattheproperconditionsdonotnecessarilymeanthatlifeactuallydoesexistonaplanet.Itmaynothavebegunyet,oritmayhavealreadydiedout.Thisprocessofeliminationseemstoleaveveryfewplanetsonwhichearthlikelifemightbefound.However,eveniflif
8、ecouldexistononlyoneplanetinamillion,therearesomanybillionsofplanetsthatthiswouldstillleaveavastnumberonwhichlifecouldexist.36.AstronomersbelievethatmatterindifferentpartsoftheuniverseA.obeysdifferentlaws.B.Obeysone
