2026年新教材人教版九年级上册英语Unit 3 Smart Learning易错知识点解析+配套练习题（含答案解析）

第第页2026年新教材人教版九年级上册英语Unit3SmartLearning易错知识点解析+配套练习题【单元话题】数字化学习、科学学习策略与高效思维方法【语法项目】that/if/whether引导的宾语从句；从句陈述语序规则；主从句时态呼应；suggest从句虚拟语气易错点1：宾语从句的语序错误（把疑问语序直接当作从句语序）【易错点】将一般疑问句或特殊疑问句的助动词/系动词前置语序直接套入宾语从句（如Idon'tknowwheredoeshelive）。【错因分析】宾语从句在复合句中充当宾语，属于名词性从句，其本质是一个陈述结构，必须严格采用“引导词+主语+谓语+其他”的陈述语序。无论主句是陈述句还是疑问句，从句内部语序必须始终为陈述语序。【正误对比】

【错例】Couldyoupleasetellmewhenwilltheonlinelecturebegin?→【正例】Couldyoupleasetellmewhentheonlinelecturewillbegin?

【错例】IwonderifisthistabletusefulforEnglishstudy.→【正例】IwonderifthistabletisusefulforEnglishstudy.【语法规则】从句无论主如何，语序必是陈述式；助动be词归原位，主语领先谓语跟。易错点2：that引导的宾语从句中that的用法与省略误区【易错点】误以为that在任何时候都可以省略，或误将what当作that来用。【错因分析】that引导陈述句充当宾语从句时，只起连接作用，在从句中不充当任何句子成分，也无实际意义，单句口语中常可省略。但若主句后跟有两个或两个以上并列的that宾语从句，第一个that可省，第二个及后续的that绝对不能省；此外，that从句前有插入语或介词短语隔离时，that也不可省。而what引导从句时，必须在从句中充当主语、宾语或表语。【正误对比】

【错例】Theteachertoldusweshouldpreviewlessonsandthatwemusttakenotes.(若第二处that漏掉则错)

【错例】Ibelievewhathewillsucceedinthefinalexam.→【正例】Ibelievethathewillsucceedinthefinalexam.【语法规则】that连接不当差，无义成分可省它；并列从句排后座，第二that莫漏下；what指代事与物，主宾表语不能缺。易错点3：if与whether引导宾语从句的选词边界与排他场景【易错点】在只能用whether的特殊语法位置上（如介词后、与ornot紧连、动词不定式前）误用if。【错因分析】if与whether均可引导“是否”含义的宾语从句。但有四种情况只能用whether，绝不可用if：①与ornot直接紧挨连用（whetherornot）；②介词后面作宾语（dependonwhether...）；③后面紧跟动词不定式（whethertodo...）；④引导主语从句、表语从句、同位语从句时。【正误对比】

【错例】Italldependsoniftheweatherwillclearuptomorrow.→【正例】Italldependsonwhethertheweatherwillclearuptomorrow.

【错例】Idon'tknowifornothewillattendtheseminar.→【正例】Idon'tknowwhetherornothewillattendtheseminar.【语法规则】是否若用whether/if，通常情况互替换；介词之后跟不定，紧靠ornot用whether灵。易错点4：主从句时态呼应原则及“客观真理”例外陷阱【易错点】主句是一般过去时，从句误用现在时态；或者从句表达客观真理/科学常识时，受主句过去时影响盲目变为过去时。【错因分析】主句为现在时态（一般现在、现在完成、一般将来），从句按实际需要自选时态；主句为过去时态（一般过去时等），从句必须退回对应的过去时态（一般过去、过去进行、过去完成、过去将来）。极其重要的例外：当从句陈述的是客观真理、科学定律、格言警句、永恒事实时，无论主句是什么时态，从句一律严格使用一般现在时。【正误对比】

【错例】Thephysicsteachertoldusthatsoundtraveledslowerthanlight.→【正例】Thephysicsteachertoldusthatsoundtravelsslowerthanlight.

【错例】HeaskedmeifIwillattendthestudygroupmeeting.→【正例】HeaskedmeifIwouldattendthestudygroupmeeting.【语法规则】主现从随由心意，主过从过时态移；客观真理不受限，一般现在表万机。易错点5：suggest后面接宾语从句的虚拟语气结构【易错点】误把suggest后面套用suggestsb.todosth.，或在suggestthat从句中随意使用过去时。【错因分析】suggest表示“建议”时，不可接sb.todo（表达“建议某人做某事”需用advisesb.todo）。其核心句型为suggestthatsb.(should)dosth.，从句谓语动词必须使用动词原形，should可以省略。注意：suggest表示“表明、暗示”时，从句使用陈述语气正常时态。【正误对比】

【错例】OurEnglishteachersuggestedustomakeflashcards.→【正例】OurEnglishteachersuggestedthatwe(should)makeflashcards./advisedustomakeflashcards.

【错例】HuaLuogengsuggestedthatstudentstooknotescarefully.→【正例】HuaLuogengsuggestedthatstudents(should)takenotescarefully.【语法规则】建议suggest莫接todo，从句should加原形；should省去只留动词根，句法严密方为真。易错点6：宾语从句与“疑问词+不定式”的互化规则与条件限制【易错点】在主从句主语不一致时盲目简化为“疑问词+不定式”，造成逻辑主语混乱；或误用whytodo。【错因分析】只有当宾语从句的主语与主句的主语或宾语保持一致时，从句才可以简化为“疑问词+不定式”。例如Idon'tknowwhatIshouldchoose.→Idon'tknowwhattochoose.但注意：why后面绝不能接不定式，不存在whytodo的形式。【正误对比】

【错例】Myteacheraskedmewhatshouldshedonext.→【正例】Myteacheraskedmewhatsheshoulddonext.

【错例】Idon'tknowwhytodothat.→【正例】Idon'tknowwhyIshoulddothat.【语法规则】主语一致才可缩，疑问词引不定式；what/how/where后加todo，唯独why字不可缩。易错点7：宾语从句否定前移现象及其反义疑问句附加问句的失误【易错点】当主句是Idon'tthink/believe/supposethat...时，误将否定词放在从句中，或在反义疑问句中根据主句主语提问。【错因分析】在think,believe,suppose,expect,imagine等表示认知、信念的动词接that从句时，若从句要表达否定意义，通常将否定词not转移至主句谓语动词前，此为“否定前移”。当该类主从句转化为反义疑问句时，若主句主语是第一人称I/we，简短问句须与从句的主谓保持一致，并注意主句的否定已转移。【正误对比】

【错例】Ithinksmarttoolswillnotreplaceourteachers.(语感欠佳)→【正例】Idon'tthinksmarttoolswillreplaceourteachers.

【错例】Idon'tthinkshehasfinishedthetask,doI?→【正例】Idon'tthinkshehasfinishedthetask,hasshe?【语法规则】think/believe主句居，第一人称否定移；反义疑问看从句，注意主句已含否。

Unit3SmartLearning·配套练习一、用所给词的适当形式填空Couldyoutellme______(how/what)Icanimprovemyreadingspeedwiththissmartapp?Theeducationalexpertsuggestedthateverystudent______(review)thekeyconceptsbeforesleeping.Iamwondering______(if/whether)todownloadthedigitaldictionaryrightnow.Thegeographyteacherremindedusthattheearth______(travel)aroundthesunin365days.Itmostlydependson______(if/whether)youhavedevelopedself-disciplineinonlinelearning.Ibelieve______(that/what)digitaltoolsarehelpful,buttheycannotreplacediligentthinking.Ourheadmasterannouncedthatourschool______(set)upanAIinnovationlabthenextsemester.Idon'tknow______(why/how)tosolvethistechnicalproblem.Couldyouhelpme?Weweretoldthatlight______(move)muchfasterthansound.Idon'tthinkthatAItoolswillreplacehumanteachers,______(willthey/won'tthey)?二、按要求改写句子Doesthissmartplatformofferfreegrammarexercises?Canyoutellme?(合并为含有宾语从句的复合句)

Canyoutellme______thissmartplatform______freegrammarexercises?Whattimewilltheliveclassbegin?Iwanttoknow.(合并为含有宾语从句的复合句)

Iwanttoknow____________theliveclass____________.Shedidn'tknowhowshecouldusemindmapsinnote-taking.(将从句改为“疑问词+不定式”结构)

Shedidn'tknow__________________mindmapsinnote-taking.Ourteachersuggestedustomakeastudyplanforthenewterm.(修改为符合规范的复合句)

Ourteachersuggested______we____________astudyplanforthenewterm."Ihavefoundausefulwebsiteforvocabularymemory,"saidLiMing.(转述为间接引语)

LiMingsaidthathe____________ausefulwebsiteforvocabularymemory.三、单句改错（每句有一处错误）16.(诊断改错)Couldyoupleasetellmewheredoesourscienceclubmeetonweekends?→____________________17.(诊断改错)Thesuccessofsmartlearningdependsonifyoucanmanageyourscreentimewell.→____________________18.(诊断改错)Theteachersaidthatthesunroseintheeastandsetinthewest.→____________________19.(诊断改错)Idon'tknowwhytochoosethismethodinsteadofthatone.→____________________20.(诊断改错)Ireallywonderwhetherwilltheycometoourstudycornerontime?→____________________四、语篇语法填空阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。Inrecentyears,artificialintelligence1.______(change)thewaystudentslearn.Manyteenagersnowwonder2.______AItoolscanreallyhelpthemimprovetheirgrades.Lastmonth,ourschool3.______(introduce)asmartlearningplatform.Ourteachertoldusthattheplatform4.______(design)tomeettheneedsofeachstudent.Atfirst,someclassmatesdoubted5.______itwasusefulornot.However,afterusingitforthreeweeks,mostofusfound6.______wecouldreviewourweakpointsmuchmoreefficiently.Ourheadteachersuggestedthatwe7.______(use)itfornomorethanfortyminutesaday."Youshouldalwaysremember8.______therealpoweroflearningliesinyourownthinking,"shesaid.Ihavedecided9.______(combine)theplatformwithmyownstudyplan.NowIunderstand10.______importantitistolearnwisely.

参考答案与解析Unit3SmartLearning·一、用所给词的适当形式填空1.how(从句已有谓语improve和宾语speed，填连接副词how表方式)2.(should)review(suggestthatsb.(should)do虚拟语气结构)3.whether(紧跟不定式todownload只能用whether)4.travels(客观真理用一般现在时，主语单数填travels)5.whether(介词on后作宾语只能用whether)6.that(从句结构完整，that只起连接作用不充当成分)7.wouldset(主句announced为过去时，thenextsemester表示过去将来时)8.how(疑问词+不定式，why不可接不定式)9.moves(客观科学定律用一般现在时)10.willthey(否定前移，主句含don'tthink，反义疑问句针对从句且用肯定问句)二、按要求改写句子11.if/whether;offers(宾语从句用陈述语序，一般疑问句用if/whether引导，主语为第三人称单数，动词加s)12.whattime;willbegin(特殊疑问词whattime引导，后接陈述语序theliveclasswillbegin)13.howtouse(主从句主语一致时，简化为疑问词+不定式)14.that;(should)make(suggesttha