牛津译林版七年级英语上册Unit3易错题专项练习

牛津译林版七年级英语上册Unit3易错题专项练习引言Unit3作为七年级英语上册的重要单元，主要围绕“认识新朋友”、“介绍他人”以及“谈论物品”等日常交际话题展开，核心句型包括"Thisis...","Thatis...","Theseare...","Thoseare..."以及询问物品归属的"Whose...isthis/arethese?"等。在实际运用中，同学们往往会在名词单复数、指示代词的搭配、物主代词的区分以及be动词的正确使用等方面出现混淆。本专项练习旨在梳理这些易错点，通过典型例题的剖析与针对性训练，帮助同学们夯实基础，提升运用能力。一、核心易错点梳理与分析1.1指示代词与be动词的搭配*易错点：this/that与is搭配，these/those与are搭配，在转换或回答时易混淆。*例：误：Thisaremybooks.正：Thesearemybooks.*例：误：What'sthose?正：Whatarethose?1.2名词的单复数形式*易错点：可数名词单数变复数的规则（如加-s,-es）及不规则变化（如man-men,child-children）掌握不牢固；不可数名词误用复数形式。*例：误：Ihavetwoapple.正：Ihavetwoapples.*例：误：Therearemanyinformations.正：Thereismuchinformation.(information为不可数名词)1.3物主代词的用法*易错点：形容词性物主代词(my,your,his,her,its,our,their)后需接名词，而名词性物主代词(mine,yours,his,hers,its,ours,theirs)后不接名词，二者易混用。*例：误：Thisisminebook.正：Thisismybook./Thisbookismine.*例：误：Isthispenyour?正：Isthispenyours?1.4"Whose"引导的特殊疑问句及其回答*易错点：对"Whose...?"的回答方式不熟悉，或遗漏名词所有格('s)。*例：问：Whosecoatisthis?误答：It'sMary.正答：It'sMary's./It'shers.1.5日常交际用语的恰当使用*易错点：在介绍、打招呼、告别、感谢等场景下，选用的交际用语不符合习惯。*例：误：Howdoyoudo?Fine,thankyou.正：Howdoyoudo?(回应同样是Howdoyoudo?)二、易错题专项练习I.单项选择(Choosethebestanswer)1.—______isthatgirl?—Sheismysister.A.WhatB.WhoC.WhoseD.How2.Thisis______Englishbook.______bookisred.A.a;AB.an;TheC.the;AnD.an;An3.—Aretheseyourpencils?—No,______aren't.Theyare______.A.they;hersB.these;herC.those;she'sD.they;her4.—Whoseglovesare______?—Theyaremy______.A.this;motherB.that;mother'sC.these;mother'sD.those;mothersA.it'sB.itsC.itD.their6.—Isthis______ruler?—Yes,itis.Thank______.A.you;yourB.your;youC.yours;youD.your;yours7.These______myfriends.______namesareLucyandLily.A.are;TheyB.is;TheirC.are;TheirD.is;They8.—Whatare______overthere?—Theyare______.A.these;appleB.those;applesC.this;applesD.that;appleII.用所给单词的适当形式填空(Fillintheblankswiththeproperformsofthegivenwords)1.Thisisnotmypencil.It's______(she).2.Arethose______(you)books?No,theyare______(he).3.Myfatherhastwo______(watch).4.—Whose______(dress)arethese?—Theyaremymother's.5.Lookatthe______(child).Theyareplayinggames.III.句型转换(Sentencetransformation)1.Thisismyeraser.(改为一般疑问句，并作否定回答)__________________eraser?No,____________.2.Thosearetheirbags.(对划线部分提问)____________those?3.Thisishernewbike.(改为同义句)Thisnewbike____________.4.Isthatyourpencilcase?(改为复数句)____________your____________?从方框中选择合适的句子补全对话(有一项多余)A.Nicetomeetyoutoo.B.What'syourname?C.Isthisyourpen?D.Thankyou.E.Howareyou?F.Goodmorning.A:Goodmorning!B:1.______A:MynameisLiMing.2.______B:I'mWangTao.A:Nicetomeetyou,WangTao.B:3.______A:4.______B:I'mfine,thanks.Andyou?A:I'mfinetoo.5.______B:Yes,itis.Thankyou.三、参考答案与解析I.单项选择1.B解析：对人提问用Who。What问事物，Whose问归属，How问方式或状态。2.B解析：English以元音音素开头，用an；第二次提到同一本书，用定冠词the。3.A解析：Arethese...?的否定回答用No,theyaren't.第二空后无名词，用名词性物主代词hers。4.C解析：gloves是复数，用these/those；“妈妈的”用名词所有格mother's。5.B解析：its是形容词性物主代词，意为“它的”。it's是itis的缩写。6.B解析：第一空后有名词ruler，用形容词性物主代词your；Thankyou.是固定表达。7.C解析：These是复数，be动词用are；第二空后有名词names，用形容词性物主代词Their。8.B解析：overthere表示“在那边”，指较远的事物，用those；theyare后接复数名词apples。II.用所给单词的适当形式填空1.hers解析：后面没有名词，用名词性物主代词hers。2.your;his解析：第一空后有名词books，用形容词性物主代词your；第二空后无名词，用名词性物主代词his。3.watches解析：two后接可数名词复数，watch的复数加es。4.dresses解析：arethese表明主语是复数，dress的复数加es。5.children解析：Theyare表明主语是复数，child的复数是children。III.句型转换1.Isthisyour;itisn't解析：含有be动词的陈述句变一般疑问句，将be动词提前，my改为your。否定回答用No,itisn't.(this/that用it代替)2.Whosebagsare解析：对“their”（物主）提问用Whose，后接名词bags，再把are提前。3.ishers解析：“这是她的新自行车”等同于“这辆新自行车是她的”，用名词性物主代词hers。4.Arethose;pencilcases解析：Isthat...?的复数是Arethose...?pencilcase的复数是pencilcases。IV.情景交际1.F解析：上句是Goodmorning!，回应也用Goodmorning!2.B解析：下句回答I'mWangTao.，可知此处问名字。3.A解析：上句是Nicetomeetyou.，回应是Nicetomeetyoutoo.4.E解析：下句回答I'mfine,thanks.，可知此处问Howareyou?5.C解析：下句回答Yes,itis.，可知此处是一般疑问句，C项“这是你的钢笔吗？”符合。总结与建议通过以上练习，我们可以看出Unit3的易错点主要集中在基础语