2025-2026年江苏省北师大版八年级英语第8单元语法知识点巩固习题

2025-2026年江苏省北师大版八年级英语第8单元语法知识点巩固习题一、单项选择题（总共10题，每题2分，共20分）1.ThenewEnglishtextbookintroducesseveralimportantgrammarpointsinUnit8,suchastheuseofthepresentperfecttensetodescribelifeexperiences.Whichsentencecorrectlydemonstratesthisgrammarpoint?A.IhavevisitedtheGreatWalltwicelastyear.B.ShehaslivedinShanghaiforfiveyears.C.Theywenttothemuseumyesterday.D.Wewillfinishtheprojectnextmonth.（解析：选项B正确使用了现在完成时态描述持续到现在的动作，符合单元知识点。选项A时态错误，lastyear需用一般过去时；选项C用一般过去时描述过去完成动作；选项D用一般将来时，均不符合题意。）2.InthegrammarsectionofUnit8,studentslearntouse"usedto"and"would"toexpresspasthabits.Whichsentencecorrectlyuses"usedto"todescribeapasthabitthatnolongerexists?A.Hewouldplaybasketballeverydaywhenhewasachild.B.SheusedtoliveinLondonbutshemovedtoParislastyear.C.Theyareusedtogettingupearly.D.Mybrotherusedtosmokebuthequitlastmonth.（解析：选项B正确表达了过去习惯（住伦敦）与现在对比（已搬巴黎），符合单元知识点。选项A用would描述过去习惯但未说明已改变；选项C用beusedto表示习惯于当前动作；选项D用一般过去时描述最近戒烟，均不符合题意。）3.Unit8emphasizesthedifferencebetween"too"and"either."Whichsentencecorrectlyuses"too"toaddinformation?A.Shelikesapples,too.B.Heistiredeither.C.Theyarelatetoo.D.Icanswim,too.（解析：选项A正确使用"too"表示附加信息（她也喜欢苹果），符合单元知识点。选项B"either"用法错误；选项C"too"位置不当；选项D"too"位置正确但句意简单，不如A典型。）4.Theunitintroducesthestructure"so+auxiliaryverb+subject+mainverb."Whichsentencecorrectlyusesthisstructuretoshowaresult?A.Itwasraining,soItookanumbrella.B.Sheistired,soshewenttobedearly.C.Heissmart,sohepassedtheexameasily.D.Theywerelate,sotheteacherwasangry.（解析：选项C正确使用"so+auxiliaryverb"（heissmart,sohepassed），符合单元知识点。其他选项均用"so+subject+verb"结构，错误。）5.InUnit8,studentslearntouse"as"toshowtimeormanner.Whichsentencecorrectlyuses"as"toindicatetime?A.AsIwaswalkinghome,Imetmyfriend.B.Shesangasbeautifullyashersister.C.Heworksasateacher.D.Asthesunsets,theskyturnsred.（解析：选项D正确使用"as"表示时间顺序（太阳落下时天空变红），符合单元知识点。选项A用as表示伴随动作；选项B用as表示比较；选项C用as表示职业身份，均不符合题意。）6.Theunitexplainstheuseof"sothat"toexpresspurpose.Whichsentencecorrectlyuses"sothat"toshowapurpose?A.Hestudiedhardsothathecouldpasstheexam.B.Shewenttothelibrarysothatshewouldstudyquietly.C.Theyarrivedlatesothattheymissedthetrain.D.Ispokeslowlysothattheycouldunderstandme.（解析：选项B正确使用"sothat"引导目的状语从句（为了安静学习），符合单元知识点。其他选项中sothat引导结果或时间状语，错误。）7.Unit8introducesthestructure"notonly...butalso..."toconnecttwoideas.Whichsentencecorrectlyusesthisstructure?A.Sheisnotonlysmartbutalsohardworking.B.Henotonlylikesmusicbutalsoplaysthepiano.C.Theynotonlywenttothepartybutalsoforgottheirphones.D.InotonlyatedinnerbutalsowatchedTV.（解析：选项A正确使用"notonly...butalso..."连接两个形容词（聪明且勤奋），符合单元知识点。其他选项中"notonly"位置错误，应置于句首。）8.Theunitteachestheuseof"such...that..."toshowastrongresult.Whichsentencecorrectlyusesthisstructure?A.TheboxissoheavythatIcannotliftit.B.Sheissuchateacherthatshehelpsstudentseveryday.C.Herunssofastthathewinseveryrace.D.Themoviewassuchinterestingthatwewatchedittwice.（解析：选项C正确使用"such...that..."连接形容词和结果状语从句（跑得快所以每次赢），符合单元知识点。选项D形容词后缺少冠词，错误。）9.InUnit8,studentslearntouse"because"togivereasons.Whichsentencecorrectlyuses"because"toexplainareason?A.Shewaslatebecauseshemissedthebus.B.Heishappybecausehegotanewjob.C.Theyleftearlybecausetheyweretired.D.Istudiedbecausetheexamwasdifficult.（解析：选项B正确使用"because"解释原因（因为得到新工作所以开心），符合单元知识点。其他选项时态或逻辑关系错误。）10.Theunitintroducestheuseof"so...that..."toshowdegree.Whichsentencecorrectlyusesthisstructuretodescribeadegree?A.Heissotiredthathefellasleepimmediately.B.Shespeakssoslowlythatnobodyunderstandsher.C.Theexamwassoeasythateveryonepassed.D.Theyweresonoisythattheneighborscomplained.（解析：选项D正确使用"so...that..."描述程度（太吵以至于邻居投诉），符合单元知识点。其他选项中"so"后需跟形容词或副词，B选项"slowly"需改为"slowlyenough"或直接用其他结构。）二、填空题（总共10题，每题2分，共20分）1.AccordingtothegrammarrulesinUnit8,todescribeapasthabitthatnolongerexists,weshoulduse_______+verb.（参考答案：usedto）（解析：单元知识点要求用"usedto"表达已消失的过去习惯，如"usedtoplaybasketball"表示过去常打篮球但现在不打了。）2.Inthesentence"Sheistired,_______shewenttobedearly,"theword"so"isusedtoshowaresult.（参考答案：so）（解析：单元知识点强调"so"连接原因和结果，此处表示因累（原因）所以早睡（结果）。）3.Toexpresspurposeusing"sothat,"thecorrectstructureis"_______+clause."（参考答案：sothat）（解析：单元知识点要求用"sothat"引导目的状语从句，如"studiedhardsothatshecouldpass"表示为了通过考试而努力学习。）4.Theunitexplainsthat"too"isusedtoaddinformation,anditshouldbeplaced_______theverboradjective.（参考答案：after）（解析：单元知识点说明"too"用于附加信息，如"Shelikesapples,too"（她喜欢苹果，我也喜欢），需置于动词或形容词后。）5.Toshowastrongresultwith"such...that...,"thecorrectstructureis"_______+noun+that+clause."（参考答案：such）（解析：单元知识点要求用"such"修饰名词，如"suchabigproblemthatwecannotsolve"表示如此大的问题以至于无法解决。）6.Theword"either"isusedtoagreewithanegativestatement,anditshouldbeplaced_______theverb.（参考答案：after）（解析：单元知识点说明"either"用于否定句附加信息，如"Shedoesnotlikecoffee,either"（她不喜欢咖啡，我也不喜欢），需置于动词后。）7.Toconnecttwoideasusing"notonly...butalso...,"thecorrectstructureis"_______+subject+verb+notonly+verb+butalso+verb."（参考答案：notonly）（解析：单元知识点要求"notonly"置于句首并倒装，如"Notonlydoesshesingwellbutshealsodancesbeautifully"表示她不仅唱歌好而且跳舞也美。）8.Theunitteachesthat"because"isusedtogivereasons,anditshouldbeplaced_______themainclause.（参考答案：before）（解析：单元知识点说明"because"引导原因状语从句，置于主句前，如"Shewaslatebecauseshemissedthebus"表示她迟到因为错过了公交车。）9.Toshowtimeusing"as,"thecorrectstructureis"_______+clause+and+clause."（参考答案：as）（解析：单元知识点要求用"as"表示同时发生，如"AsIwaswalking,Imetmyfriend"表示边走边遇见朋友。）10.Theunitintroducestheuseof"so...that..."toshowdegree,andtheword"so"shouldbeplaced_______theadjectiveoradverb.（参考答案：before）（解析：单元知识点说明"so"置于形容词或副词前，如"Heissotallthathecanreachtheshelf"表示他太高所以能碰到架子。）三、判断题（总共10题，每题2分，共20分）1.Thesentence"ShehasvisitedtheGreatWall"correctlyusesthepresentperfecttensetodescribealifeexperience.（参考答案：正确）（解析：单元知识点要求用现在完成时描述经历，该句符合"has+pastparticiple"结构，表示过去到现在的经历。）2.Thesentence"Hewouldplaybasketballeveryday"correctlyuses"would"toexpressapasthabit.（参考答案：错误）（解析：单元知识点说明"would"常用于虚拟语气或过去意愿，表达习惯时需用"usedto"，如"usedtoplaybasketball"更准确。）3.Theword"too"canbeplacedeitherbeforetheverboraftertheadjectiveinasentence.（参考答案：正确）（解析：单元知识点允许"too"置于动词前（"Ilikeapplestoo"）或形容词后（"Sheissmarttoo"），位置灵活。）4.Thesentence"Sheisnotonlysmartbutalsohardworking"correctlyuses"notonly...butalso..."toconnecttwoideas.（参考答案：正确）（解析：单元知识点要求"notonly"置于句首并倒装，该句符合结构，表示她既聪明又勤奋。）5.Theword"either"canbeusedtoagreewithapositivestatement,suchas"Shelikescoffee,either."（参考答案：错误）（解析：单元知识点说明"either"仅用于否定句，如"Shedoesnotlikecoffee,either"表示否定附加信息，正句需用"also"或"too"。）6.Thesentence"TheboxissoheavythatIcannotliftit"correctlyuses"so...that..."toshowastrongresult.（参考答案：正确）（解析：单元知识点要求"so"后跟形容词，该句符合结构，表示箱子太重以至于举不起来。）7.Theword"because"canbeusedtoshowaresult,suchas"Hewastiredbecausehefellasleep."（参考答案：错误）（解析：单元知识点说明"because"用于解释原因，该句逻辑错误，应为"hefellasleepbecausehewastired"表示因累而睡着。）8.Thesentence"AsIwaswalking,Imetmyfriend"correctlyuses"as"toshowtime.（参考答案：正确）（解析：单元知识点要求用"as"表示同时发生，该句符合结构，表示边走边遇见朋友。）9.Thesentence"ShehaslivedinShanghaiforfiveyears"correctlyusesthepresentperfecttensetodescribeapasthabit.（参考答案：错误）（解析：单元知识点区分现在完成时（描述经历）和现在完成进行时（强调持续），该句应改为"hasbeenliving"表示持续状态。）10.Theword"so"canbeusedtoaddinformationinapositivestatement,suchas"Heistall,sohecanreachtheshelf."（参考答案：错误）（解析：单元知识点说明"so"仅用于否定句附加信息，正句需用"too"或"also"，如"Heistall,too"表示他也高。）四、简答题（总共8题，每题2分，共16分）1.Explainthedifferencebetween"usedto"and"would"indescribingpasthabits.（参考答案："Usedto"isusedtodescribeapasthabitthatnolongerexists,suchas"Heusedtoplayfootballeverydaybutnowhedoesnot.""Would"isoftenusedinconditionalsentencesortoexpresspastwillingness,suchas"Hewouldplayfootballeverydayifhehadtime."Thekeydifferenceisthat"usedto"focusesonthedisappearanceofahabit,while"would"focusesonpastwillingnessorhypotheticalsituations.)2.Howdoesthestructure"so+auxiliaryverb+subject+mainverb"showaresult?Giveanexample.（参考答案：Thestructure"so+auxiliaryverb"isusedtoshowastrongresult,oftenwithamodalverblike"can"or"must."Forexample,"Sheissotiredthatshecanfallasleepimmediately."Here,"sotired"causestheresult"canfallasleep,"indicatingadirectconsequence.)3.Whyshould"notonly"beplacedatthebeginningofasentencewhenusing"notonly...butalso...?"（参考答案：Inthestructure"notonly...butalso...,""notonly"mustbeplacedatthebeginningofthesentenceandfollowedbyinversion(auxiliaryverb+subject).Thisisbecause"notonly"isanemphaticadverbial,anditspositioncreatesabalancedstructure.Forexample,"Notonlydoesshesingwellbutshealsodancesbeautifully.")4.Whatisthepurposeofusing"because"inasentence?Giveanexample.（参考答案："Because"isusedtogivereasonsorexplanationsforastatement.Forexample,"Shewaslatebecauseshemissedthebus."Here,"becauseshemissedthebus"explainswhyshewaslate,providingalogicalconnectionbetweentwoclauses.)5.Howdoesthestructure"such...that..."differfrom"so...that...?"（参考答案："Such...that..."requires"such"tomodifyanoun,suchas"Suchabigproblemthatwecannotsolve.""So...that..."requires"so"tomodifyanadjectiveoradverb,suchas"Sobigaproblemthatwecannotsolve."Thekeydifferenceisthewordusedtomodifythenoun(suchvs.so).）6.Whycan"either"onlybeusedwithnegativestatements?（参考答案："Either"isusedtoagreewithnegativestatements,suchas"Shedoesnotlikecoffee,either."Itemphasizesthesamenegation.Ifusedwithapositivestatement,itwouldcreateconfusion,soitisreservedfornegativecontextstomaintainlogicalconsistency.)7.Explaintheuseof"as"toshowtimeinasentence.Giveanexample.（参考答案："As"canindicatethattwoactionshappenatthesametime.Forexample,"AsIwaswalking,Isawanoldfriend."Here,"asIwaswalking"and"Isawanoldfriend"occursimultaneously.Thisstructureemphasizesparallelactions.)8.Howdoesthepresentperfecttensedifferfromthesimplepasttenseindescribinglifeexperiences?（参考答案：Thepresentperfecttense("hasvisited")emphasizesapastexperiencethathasrelevancetothepresent,suchasalifeskillormemory.Thesimplepasttense("visited")describesacompletedactioninthepastwithoutconnectiontothepresent,suchas"IvisitedtheGreatWalllastyear."Thekeydifferenceisthetimeconnection.)五、应用题（总共8题，每题4分，共24分）1.Rewritethefollowingsentenceusingthepresentperfecttense:"Hefinishedthebookyesterday."（参考答案：Hehasfinishedthebook.解析：单元知识点要求用现在完成时描述过去到现在的经历，"hasfinished"符合结构。）2.Rewritethefollowingsentenceusing"usedto":"Sheplaysthepianonowbutshedidnotplaywhenshewasyoung."（参考答案：Sheusedtoplaythepianowhenshewasyoungbutshedoesnotplaynow.解析：单元知识点要求用"usedto"描述已消失的过去习惯，"usedtoplay"符合结构。）3.Rewritethefollowingsentenceusing"so+auxiliaryverb":"Sheistired,soshecannotsleep."（参考答案：Sheissotiredthatshecannotsleep.解析：单元知识点要求用"so+auxiliaryverb"表示结果，"sotiredthat"符合结构。）4.Rewritethefollowingsentenceusing"because":"Heleftearly;hewastired."（参考答案：Heleftearlybecausehewastired.解析：单元知识点要求用"because"连接原因，该句符合结构。）5.Rewritethefollowingsentenceusing"notonly...butalso...":"Sheissmartandsheishardworking."（参考答案：Notonlyisshesmartbutsheisalsohardworking.解析：单元知识点要求"notonly"置于句首并倒装，该句符合结构。）6.Rewritethefollowingsentenceusing"such...that...":"Theproblemistoobigtosolve."（参考答案：Itissuchabigproblemthatitcannotbesolved.解析：单元知识点要求用"such...that..."修饰名词，该句符合结构。）7.Rewritethefollowingsentenceusing"either":"Shedoesnotlikecoffee,andIdonotlikeiteither."（参考答案：Shedoesnotlikecoffee,andIdonotlikeiteither.解析：单元知识点要求用"either"附加否定信息，该句符合结构。）8.Rewritethefollowingsentenceusing"as":"IwaswalkingandIsawmyfriend."（参考答案：AsIwaswalking,Isawmyfriend.解析：单元知识点要求用"as"表示同时发生，该句符合结构。）【标准答案及解析】一、单项选择题1.B2.D3.A4.C5.D6.B7.A8.C9.B10.D二、填空题1.usedto2.so3.sothat4.after5.such6.notonly7.as8.before9.as10.before三、判断题1.正确2.错误3.正确4.正确5.错误6.正确7.错误8.正确9.错误10.错误四、简