it特殊用法专项练习题及详细答案解析

it特殊用法专项练习题及详细答案解析本次试题聚焦it核心特殊用法，涵盖形式主语、形式宾语、强调句型、指代天气/时间/距离、固定句型、替代上文名词等高频考点，题型全面，适配日常练习、单元检测及高考基础复习，解析侧重知识点落地，贴合常规解题思路。一、单项选择题（共20题，每题3分，共60分）从A、B、C、D四个选项中选出最佳答案1.______israiningheavilyoutside,sowecan’tgooutforawalk.A.ThatB.ItC.ThisD.Weather2.Ithink______necessaryforustofinishhomeworkontimeeveryday.A.itB.thatC.thisD.one3.______wasyesterdaythatImetmyoldfriendinthestreet.A.ItB.ThatC.ThisD.There4.—Howfarisitfromyourhometoschool?—______isabouttwokilometers.A.ThisB.ThatC.ItD.Theroad5.______takesmehalfanhourtoreadEnglisheverymorning.A.ThatB.ItC.ThisD.Which6.Shefound______veryeasytolearnswimmingwell.A.thisB.thatC.itD.one7.______isnousecryingoverspiltmilk.A.ItB.ThatC.ThisD.There8.Ihate______whenpeopletalkloudlyinpublicplaces.A.thatB.itC.thisD.one9.______wasinthisparkthatwehadourclassmeetinglastweek.A.ThereB.ThatC.ItD.This10.Ifeel______mydutytohelpothersinneed.A.thatB.thisC.itD.one11.______isfiveyearssincewegraduatedfrommiddleschool.A.ItB.ThatC.ThisD.There12.Theteachermade______clearthateveryonemustfollowtheschoolrules.A.thatB.itC.thisD.one13.—Whattimeis______?—It’snineo’clock.A.thisB.thatC.itD.time14.______isimpossibleforustofinishtheworkinonehour.A.ThatB.ThisC.ItD.There15.Ilikethispenbetterthan______youboughtlastweek.A.itB.oneC.thatD.this16.______happenedthatIwasoutwhenyoucalledme.A.ItB.ThatC.ThisD.There17.Wethink______apitythatwemissedthewonderfulshow.A.thatB.thisC.itD.one18.______isfinetoday.Let’sgohiking.A.TheweatherB.ItC.ThisD.That19.Itwasnotuntilmidnight______hefinishedhishomework.A.thatB.whenC.whileD.as20.Itake______forgrantedthatparentsalwayscareaboutus.A.thatB.itC.thisD.one二、用it的正确用法完成句子（每空1分，共20分）1.（天气晴朗）______issunnyandwarmtoday.2.（距离很远）______isalongwayfromheretotheairport.3.做运动对我们有益。______isgoodforustodosports.4.我发现学好英语很重要。Ifind______veryimportanttolearnEnglishwell.5.众所周知，地球是圆的。______isknowntoallthattheearthisround.6.没过多久我们就再次见面了。______wasnotlongbeforewemetagain.7.正是小明帮助了我。______wasXiaoMingwhohelpedme.8.我认为没必要等待。Ithink______noneedtowait.9.今天是周五。______isFridaytoday.10.他很有可能会赢得比赛。______islikelythathewillwinthegame.三、句型转换（每空2分，共20分）1.Tolearntoswimisuseful.（用it作形式主语改写）____________usefultolearntoswim.2.Ifoundthathewashonest.（用it作形式宾语改写）Ifound____________.3.Hedidn’tgotobeduntilhisfathercameback.（改为强调句）____________untilhisfathercameback______hewenttobed.4.Readinginthesunisbadforyoureyes.（用it作形式主语改写）____________badforyoureyes____________inthesun.参考答案及详细解析一、单项选择题答案+解析1.答案：B解析：it可独立指代天气、气候，为固定用法，that/this无此用法，weather不能直接作主语前置使用。2.答案：A解析：固定结构it+adj.+forsb.todosth.，it作形式宾语，真正宾语是后面的不定式，其余代词不适用该结构。3.答案：A解析：强调句型固定结构Itis/was+被强调部分+that/who...，本句强调时间状语yesterday，必须用it开头。4.答案：C解析：it专门用于指代距离、路程，是固定用法。5.答案：B解析：固定句型Ittakessb.sometimetodosth.（做某事花费某人多长时间），it为形式主语。6.答案：C解析：固定结构findit+adj.+todosth.，it作形式宾语，替代后面的不定式宾语。7.答案：A解析：固定谚语句型Itisnousedoingsth.（做某事没用），为固定搭配，不可替换代词。8.答案：B解析：部分动词（hate/like/dislike/appreciate）后需先接it作形式宾语，再接从句，属于特殊固定用法。9.答案：C解析：强调句型，强调地点状语inthispark，遵循Itwas+地点+that...结构。10.答案：C解析：固定结构feelit+n.+todosth.，it作形式宾语，真正宾语是后面的不定式。11.答案：A解析：固定句型Itis+时间段+since从句（自从……以来多久了），it指代时间。12.答案：B解析：固定结构makeitclearthat从句（明确……），it作形式宾语，替代后面的宾语从句。13.答案：C解析：it专门用于指代具体时间，为日常固定用法。14.答案：C解析：固定结构Itis+adj.+forsb.todosth.，it作形式主语，真正主语是不定式。15.答案：C解析：it指代上文同一事物，that指代上文同类不同物的单数名词（特指），one指代同类泛指。此处指代thepen，特指对方买的那支，用that。16.答案：A解析：固定句型Ithappenedthat从句（碰巧……），为固定搭配。17.答案：C解析：固定结构thinkitapitythat从句（认为……很遗憾），it作形式宾语。18.答案：B解析：英语习惯用it指代天气，而非直接用theweather作主语，是固定表达习惯。19.答案：A解析：not...until...的强调句型为Itwasnotuntil...that...，固定句式搭配。20.答案：B解析：固定短语takeitforgrantedthat从句（理所当然认为……），it为形式宾语，固定不可替换。二、完成句子答案1.It2.It3.It4.it5.It6.It7.It8.it9.It10.It三、句型转换答案1.It;is解析：用it作形式主语，替代后置的真正主语tolearntoswim。2.it;honest解析：简化宾语从句，用it作形式宾语，形容词honest作宾语补足语。3.It;was;that解析：not...until...句型的强调句固定结构。4.It;is;to;read解析：it作形式主语，真正主语为后置的动名词/不定式，此处用不定式更贴合常规考点。核心考点总结（易错点梳理）1.形式主语：It+形容词/名词+todo/doing/从句，替代过长的真正主语，避