大學(xué)英語專業(yè)八級改錯試題突擊訓(xùn)練

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Mostpeoplewoulddescribewaterlikeacolorlessliquid.They__1__wouldknowthatinverycoldconditionsitbecomesasolidcallediceandthatwhenheatingonafireitbecomesavaporcalledsteam.__2__However,water,theywouldsay,isaliquid.Wehavelearnedthatwaterconsistsofmoleculescomposedwithtwoatomsofhydrogen__3__andoneatomofoxygen,whichwedescribebytheformulaH2O.

Thisisequallytrueofthesolidcallediceandthegascalledsteam.

Chemicallythereisnodifferencebetweenthegas,theliquid,andthesolid,allofwhichismadeupofmoleculeswiththeformulaH2O.__4__Thisistrueofotherchemicalsubstances;mostofthemcanexistasgasesorasliquidsorassolids.Wemaynormallythinkofironasasolid,butifwewillheatitinafurnace,itwillmeltandbecomea__5__liquid,andatveryhightemperaturesitwillbecomeagas.Nothingverypermanentoccurswhenagaschangesintoaliquidorasolid.

Everyoneknowsthatice,whichhasbeenmadebyfreezingwater,canbemeltedagainbywarmedandthatsteamcanbecondensed__6__onacoldsurfacetobecomeliquidwater.Infact,itisonlybecausewaterissoafamiliarsubstancethatdifferentnamesareusedfor__7__thesolid,liquidandgas.Mostsubstancesareonlyfamiliarwith__8__usinonestate,becausethetemperaturesrequiringtoturnthem__9__intogasesareveryhigh,orthetemperaturesnecessarytoturnthemintosolidsaresolow.Waterisanexceptioninthisrespect,whichisanotherreasonwhyitsthreestateshavegiventhreedifferentnames.__10__

參考答案及解析:

1.改like為asdescribesthassth是把……描述成……的意思。

2.改heating為heated在時間，條件，讓步等狀語從句中，當(dāng)從句主語和主句主語是一致的時候，可以將從句的主語和be的變化形式省略。

3.改with為ofbecomposedof意思為“包括，由……組成”

4.改ismadeup為aremadeupwhich指代上文中的thegas，theliquid，andthesolid，表示復(fù)數(shù)概念，所以要用are5.將第一個will去掉在時間條件狀語從句和條件狀語從句中要用現(xiàn)在時表示將來時。

6.by改為whenwhenwarm相當(dāng)于whenitiswarmed7.改so為such8.改with為to短語familiarto后面才能接“某人”familia