be动词和助动词do用法练习题

be动词和助动词do用法练习题在英语学习的基础阶段，be动词和助动词do的用法是构建句子的基石，也是初学者容易混淆的难点。准确掌握它们的用法，对于形成正确的语感、造出规范的句子至关重要。本文将通过一系列练习题，帮助你巩固这方面的知识，加深理解。一、be动词的用法回顾be动词（am,is,are,was,were）在句中主要有以下功能：1.系动词：后接名词、形容词、介词短语等作表语，构成“主系表”结构，表示主语的身份、性质、状态或位置。*例：Sheisastudent.(身份)*例：Theflowersarebeautiful.(性质)*例：Theywereintheparkyesterday.(位置/状态)2.助动词：用于构成进行时态（be+doing）和被动语态（be+done）。*例：Heisreadingabooknow.(现在进行时)*例：Theletterwaswrittenbyher.(一般过去时被动语态)二、助动词do的用法回顾助动词do(does,did)本身没有实际意义，主要用于构成以下情况：1.构成疑问句：用于除be动词、情态动词之外的实义动词的一般现在时和一般过去时的疑问句。*例：Doyoulikecoffee?(一般现在时)*例：Didhegotoschoolyesterday?(一般过去时)2.构成否定句：用于除be动词、情态动词之外的实义动词的一般现在时和一般过去时的否定句，后接not。*例：Idonot(don't)knowhisname.(一般现在时)*例：Shedidnot(didn't)finishherhomework.(一般过去时)3.强调谓语动词：用于肯定句中，加强语气，意为“确实，的确”。*例：Idolovemycountry.三、be动词与助动词do用法对比与常见误区*否定句与疑问句的构成：*当句子中已有be动词作谓语时，变否定句直接在be后加not；变疑问句直接将be提到主语前。*例：Heishappy.→Heisnothappy.→Ishehappy?*当句子中谓语是实义动词，且时态为一般现在时或一般过去时，变否定句和疑问句需借助助动词do/does/did。*例：Shelikesapples.→Shedoesnot(doesn't)likeapples.→Doesshelikeapples?*例：Theyplayedfootball.→Theydidnot(didn't)playfootball.→Didtheyplayfootball?*常见错误：误用be动词和助动词do。例如，将"Heisgotoschool."说成正确的"Hegoestoschool."或"Heisgoingtoschool."；或将"Doyouastudent?"说成正确的"Areyouastudent?"。四、练习题（一）用括号内所给词的适当形式填空(be动词或助动词do/does/did)1.She______ateacher.(be)2.They______playingbasketballnow.(be)3.______youlikeswimming?(do)4.He______notgotoworkyesterday.(do)5.Thisbook______veryinteresting.(be)6.______yourparentsathomelastnight?(be)7.She______herhomeworkeveryday.(do-提示：此处为实义动词“做”，注意时态)8.______theyusuallywatchTVintheevening?(do)9.Thechildren______inthegardentenminutesago.(be)10.I______believeyou.(do-提示：此处为强调)（二）将下列句子改为否定句1.Heisadoctor.2.Theyareplayinggames.3.Ilikeicecream.4.Shefinishedherhomeworkontime.5.Wegotoschoolbybus.（三）将下列句子改为一般疑问句，并作肯定和否定回答1.Tomisintheclassroom.2.Theywerehappy.3.Heplaysthepianoeveryweekend.4.Marywentshoppingyesterday.5.Idomyhouseworkeveryday.(提示：此处do为实义动词)（四）选择正确的词填空(is,am,are,do,does,did)1.______yourbrotherastudent?2.______youusuallygetupearly?3.How______youfeelingtoday?4.______hegototheparklastSunday?5.There______manybooksontheshelf.6.______theyhaveameetingyesterday?7.She______notlikespicyfood.8.I______readinganovelnow.9.______youknowhisaddress?10.They______veryexcitedaboutthetrip.五、练习题参考答案（一）用括号内所给词的适当形式填空1.is2.are3.Do4.did5.is6.Were7.does(此处为实义动词“做”，主语she为第三人称单数，一般现在时，故用does)**(原题此处若理解为助动词则不通，故按实义动词“做”来填，即Shedoesherhomeworkeveryday.她每天做作业。)*8.Do9.were10.do(强调)（二）将下列句子改为否定句1.Heisnot(isn't)adoctor.2.Theyarenot(aren't)playinggames.3.Idonot(don't)likeicecream.4.Shedidnot(didn't)finishherhomeworkontime.5.Wedonot(don't)gotoschoolbybus.（三）将下列句子改为一般疑问句，并作肯定和否定回答1.IsTomintheclassroom?*Yes,heis./No,heisn't.2.Weretheyhappy?*Yes,theywere./No,theyweren't.3.Doesheplaythepianoeveryweekend?*Yes,hedoes./No,hedoesn't.4.DidMarygoshoppingyesterday?*Yes,shedid./No,shedidn't.5.Doyoudoyourhouseworkeveryday?*Yes,Ido./No,Idon't.（四）选择正确的词填空1.Is2.Do3.are4.Did5.are6.Did7.