2026年重庆市苏教版八年级英语下册Unit6语法专项训练习题

2026年重庆市苏教版八年级英语下册Unit6语法专项训练习题一、单项选择题（总共10题，每题2分，共20分）1.Intheunit,welearnhowtousethepresentperfecttensetodescribeactionsthathavestartedinthepastandcontinuetothepresent.Whichsentencecorrectlyusesthistense?A.Shehaslivedinthiscitysinceshewasachild.B.Hewenttothelibraryyesterday.C.Theyareplayingbasketballnow.D.Iwillfinishmyhomeworktomorrow.解析：选项A正确使用了现在完成时，表示从过去开始并持续到现在的动作。选项B使用一般过去时，选项C使用现在进行时，选项D使用一般将来时，均不符合题意。现在完成时通常与since或for等时间状语连用，强调动作的持续性。2.Theunitemphasizestheuseof"for"and"since"toindicatethedurationofactionsinthepresentperfecttense.Whichsentencecorrectlyuses"for"?A.Shehastraveledaroundtheworldforthreeyears.B.Hehasbeenateachersince2010.C.TheyhavestudiedEnglishforfivehours.D.Ihavemethimfortwoweeks.解析：选项C正确使用了"for"表示动作持续的时间长度（五小时）。选项A和D的"for"用法不自然，通常不说"forthreeyears"或"fortwoweeks"来描述完成时态。选项B使用"since"表示时间起点，不符合题意。3.Intheunit,welearnaboutthedifferencebetweenthepresentperfectandthepastsimple.Whichsentenceshouldusethepresentperfectinsteadofthepastsimple?A.IvisitedLondonlastyear.B.Shehaswonthreeawards.C.Hefinishedthebookyesterday.D.Theywenttothepartylastnight.解析：选项B正确使用了现在完成时，强调过去的成就对现在的影响。选项A、C、D描述的是过去且已完成的动作，应使用一般过去时。现在完成时通常用于描述对现在有影响的过去经历。4.Theunitincludesgrammarexercisesonthestructureofthepresentperfecttense.Whichsentenceisgrammaticallycorrect?A.TheyhavebeentoParistwotimes.B.Shehasgonetoschoolfiveyears.C.Hehasworkedhereforalongtime.D.WehavestudiedEnglishlastmonth.解析：选项C正确，表示持续到现在的动作。选项A和D的"twotimes"和"lastmonth"与现在完成时不匹配。选项B缺少时间单位，应为"fiveyearsago"。5.Intheunit,welearnhowtousethepresentperfectwithadverbsoffrequency.Whichsentencecorrectlyusesanadverboffrequency?A.Shealwayshaseatenbreakfast.B.Heneverhasvisitedhisgrandparents.C.Theyoftenhavebeentothemuseum.D.Isometimeshavegonetothegym.解析：选项B正确，"never"与现在完成时连用表示从未发生的经历。选项A和D的"always"和"sometimes"与现在完成时不匹配，通常用于一般现在时。选项C的"often"可以，但B更符合现在完成时的典型用法。6.Theunitincludesasectiononusingthepresentperfectwith"ever"and"never."Whichsentencecorrectlyuses"ever"?A.Shehaseverseenthatmovie.B.HehasneverbeentoJapan.C.TheyhaveeverlivedinNewYork.D.IhaveneverstudiedFrench.解析：选项B正确，"never"用于否定句，表示从未发生的经历。选项A和C的"ever"用法不自然，通常用于疑问句或否定句。选项D正确，但B更符合现在完成时的典型用法。7.Intheunit,welearnabouttheuseofthepresentperfectwithpassivevoice.Whichsentenceiscorrect?A.Thisbookhasbeenwrittenbyhim.B.Shehaswrittenthisbook.C.Theyhavebeenwrittenbyus.D.Ithasbeenwrittenyesterday.解析：选项A正确，现在完成时的被动语态表示动作完成且对现在有影响。选项B是主动语态，选项C的主谓不一致，选项D的时间状语错误。8.Theunitincludesexercisesonusingthepresentperfectwithmodalverbs.Whichsentencecorrectlyusesamodalverb?A.Shecanhasfinishedherhomework.B.Hemusthavegonetothestore.C.Theymayhavebeenlate.D.Ishouldhaveeatenbreakfast.解析：选项B正确，"musthave"表示对过去动作的推测。选项A的"canhas"语法错误，选项C的"mayhave"可以，但B更符合现在完成时的推测用法。选项D使用一般过去时，不符合题意。9.Intheunit,welearnabouttheuseofthepresentperfectwith"just."Whichsentencecorrectlyuses"just"?A.Shehasjustwatchedamovie.B.Hejusthaseatendinner.C.Theyhavejustbeentothebeach.D.Ijusthavegonetobed.解析：选项A正确，"just"表示动作刚刚完成。选项B和D的语序错误，应为"hasjusteaten"或"justhavegone"。选项C正确，但A更符合现在完成时的典型用法。10.Theunitincludesasectiononusingthepresentperfectwith"yet."Whichsentencecorrectlyuses"yet"?A.Shehasnotfinishedherworkyet.B.Hehasfinishedhisworkyet.C.Theyhavenotbeentothepartyyet.D.Ihavegonetothepartyyet.解析：选项A正确，"yet"用于否定句，表示动作尚未完成。选项B和D的肯定句用法不自然，选项C正确，但A更符合现在完成时的典型用法。二、填空题（总共10题，每题2分，共20分）1.Theunitteachesushowtousethepresentperfecttensetodescribeactionsthat______startedinthepastandcontinuetothepresent.答案have解析：现在完成时表示从过去开始并持续到现在的动作，结构为"have/has+过去分词"。2.Weuse"for"toindicatethe______ofanactioninthepresentperfecttense.答案duration解析："for"后接时间长度，如"forthreeyears"。3.Thepresentperfecttenseisdifferentfromthepastsimplebecauseit______anaction'sconnectiontothepresent.答案shows解析：现在完成时强调过去动作对现在的影响，而一般过去时不涉及现在。4.Whenusingthepresentperfectwithadverbsoffrequency,weusuallyplacetheadverb______theauxiliaryverb"have/has."答案between解析：如"neverhasvisited"，"alwayshaseaten"。5.Thestructureofthepresentperfecttenseis______+pastparticiple.答案have/has解析：如"haslived"，"havetraveled"。6.Weuse"since"toindicatethe______ofanactioninthepresentperfecttense.答案startingpoint解析："since"后接具体时间点，如"since2010"。7.Thepresentperfectpassivevoiceisformedwith"be+pastparticiple."Intheunit,welearntouseittodescribeactionsthat______beencompleted.答案have答案been解析：如"Thisbookhasbeenwritten."8.Modalverbslike"must"and"may"areusedwiththepresentperfectto______pastactions.答案guess解析：如"musthavegone"，"mayhaveforgotten"。9."Just"isusedtoemphasizethatanaction______completedveryrecently.答案has解析：如"Shehasjustarrived."10."Yet"isusedinnegativesentencestoindicatethatanaction______nothappenedbynow.答案has解析：如"Shehasnotfinishedyet."三、判断题（总共10题，每题2分，共20分）1.Thepresentperfecttenseisusedtodescribeactionsthathappenedinthepastandarefinished.(×)解析：这是一般过去时的用法，现在完成时强调动作的持续性或对现在的影响。2.Wecanuse"for"and"since"interchangeablyinthepresentperfecttense.(×)解析："for"表示时间长度，"since"表示时间起点，不能互换。3.Thepresentperfecttensecanbeusedwithalladverbsoffrequency.(×)解析：一般现在时更常与频率副词连用，现在完成时较少。4.Thestructure"hasbeento"meansthepersoniscurrentlyintheplace.(×)解析："hasbeento"表示去过某地但已回来，"isin"表示现在在。5.Thepresentperfectpassivevoiceisusedtodescribeactionsthatstartedinthepastandcontinuetothepresent.(×)解析：这是现在完成时的主动语态，被动语态描述的是完成且对现在有影响。6.Weuse"musthave"toexpresscertaintyaboutpastactions.(×)解析："musthave"表示推测，"forsure"表示肯定。7."Just"canbeusedatthebeginningofasentenceinthepresentperfecttense.(√)解析：如"Justhashappened."（虽然不自然，但语法允许）。8."Yet"isusedinaffirmativesentencestoindicateprogress.(×)解析："yet"仅用于否定句，如"hasnotfinishedyet."9.Thepresentperfecttenseisusedtodescribefutureactions.(×)解析：这是一般将来时的用法，现在完成时不涉及未来。10.Thepresentperfecttenseismoreformalthanthepastsimple.(×)解析：两者正式程度相同，取决于语境。四、简答题（总共8题，每题2分，共16分）1.Explainthedifferencebetween"for"and"since"inthepresentperfecttense.参考答案："For"isusedwithadurationoftime(e.g.,"forthreeyears"),while"since"isusedwithaspecificpointintime(e.g.,"since2010")."For"answers"howlong,"and"since"answers"when."解析：详细解释了两个时间状语的区别，并举例说明。2.Whyisthepresentperfecttenseusedinsteadofthepastsimple?参考答案：Thepresentperfectisusedtodescribeactionsthatstartedinthepastandcontinuetothepresent,orhaveaconnectiontothepresent.Thepastsimpleisusedforcompletedactionsinthepastwithnoconnectiontonow.解析：阐述了两种时态的适用场景区别。3.Howdoyouformthepresentperfectpassivevoice?参考答案：Thestructureis"be+pastparticiple."Forexample,"Thisbookhasbeenwritten."解析：提供了被动语态的构成方法并举例。4.Whatisthefunctionof"ever"and"never"inthepresentperfecttense?参考答案："Ever"isusedinquestionsandaffirmativesentences(e.g.,"HaveyoueverbeentoParis?"),while"never"isusedinnegativesentences(e.g.,"Shehasneverseenthatmovie.").解析：解释了两个副词的用法场景。5.Howdoyouusemodalverbswiththepresentperfecttense?参考答案：Modalverbslike"must,""may,"and"might"areusedwith"have/has+pastparticiple"toexpresscertaintyorpossibilityaboutpastactions(e.g.,"Hemusthaveleft.").解析：说明了情态动词与现在完成时的结合用法。6.Whyis"just"usedinthepresentperfecttense?参考答案："Just"emphasizesthatanactionhappenedveryrecently(e.g.,"Shehasjustarrived.").解析：解释了"just"的强调作用。7.Howdoyouuse"yet"inthepresentperfecttense?参考答案："Yet"isusedinnegativesentencestoindicatethatanactionhasnothappenedbynow(e.g.,"Haveyoufinishedyourhomeworkyet?").解析：说明了"yet"的否定用法。8.Whataresomecommonmistakeswhenusingthepresentperfecttense?参考答案：Commonmistakesincludeusingthepastsimpleinsteadofthepresentperfect,incorrectuseof"for"and"since,"andmixingupactiveandpassivevoice.解析：列举了常见错误并简要说明。五、应用题（总共8题，每题4分，共24分）1.Rewritethefollowingsentenceinthepresentperfecttense:"Shefinishedherhomeworkyesterday."参考答案："Shehasfinishedherhomework."解析：将一般过去时改为现在完成时，强调动作对现在的影响。2.Completethesentencewiththecorrectformofthepresentperfecttense:"I______toLondon."参考答案"havebeen"解析：表示过去的经历，使用现在完成时的主动语态。3.Changethefollowingsentencetothepresentperfectpassivevoice:"Theybuiltthishouselastyear."参考答案"Thishousehasbeenbuilt."解析：将主动语态改为被动语态，保持现在完成时。4.Fillintheblankwith"for"or"since":"Shehaslivedinthiscity______2015."参考答案"since"解析：表示时间起点，使用"since"。5.Correcttheerrorinthefollowingsentence:"Hehasneverwenttotheparty."参考答案"hasnevergone"解析：现在完成时与"never"连用时，动词用原形。6.Rewritethefollowingsentenceusing"just":"Sheatebreakfastanhourago."参考答案"Shehasjusteatenbreakfast."解析：强调动作刚刚完成，使用"just"。7.Completethesentencewiththecorrectmodalverb:"You______finishedyourwork,oryouwillbelate."参考答案"musthave"解析：表示对过去动作的推测，使用"musthave"。8.Fillintheblankwith"ever"or"never":"Haveyou______seenthatmoviebefore?"参考答案"ever"解析：疑问句中用"ever"，表示是否有过经历。【标准答案及解析】一、单项选择题1.A2.C3.B4.C5.B6.B7.A8.B9.A10.A二、填空题1.have2.duration3.shows4.between5.have/has6.startingpoint7.have,been8.guess9.has10.has三、判断题1.×2.×3.×4.×5.×6.×7.√8.×9.×10.×四、简答题1."For"isusedwithaduration(e.g.,"forthreeyears"),while"since"isusedwithastartingpoint(e.g.,"since2010").2.T