【新教材】人教版（2024）七年级下册英语Unit 4 语法精讲精练

第第页【新教材】人教版（2024）七年级下册英语Unit4语法精讲精练并列连词and/but/because一、三大连词核心用法详解1连词and含义：和、并且，用于并列递进、顺承两个相近/同类信息，前后句意同向、无转折。使用场景：①并列科目、物品、人物：Ihaveartandgeographytoday.②顺承补充观点：Englishisimportant,andmyEnglishteacherisreallynice.2连词but含义：但是，表转折，前后内容意思相反、形成对比。例句：Biologyisdifficultbutimportant.历史是我最喜欢的科目，但我姐姐不喜欢。3连词because含义：因为，用来引出动作、喜好的原因，回答why类问题。结构：主句+because+原因句子例句：IlikeChinesebecauseit’sfun.他不喜欢数学，因为对他来说很枯燥。填空总结（对应3a习题）Weuse“because”togiveareason.（表原因）Weuse“and”togiveanotheridea.（补充同类信息）Weuse“but”togivetwodifferentideas.（对比相反信息）二、句式结构注意事项and/but连接两个完整句子时，前面加逗号：It’sfun,andIloveit.It’shard,butuseful.because引导原因从句，可放主句后，也可放句首（句首时主句前加逗号）Ilikebiologybecauseit’sexciting.Becauseit’sexciting,Ilikebiology.易错：but和because不能同时出现在同一个句子里。易混对比表格连词功能逻辑关系例句and并且、和顺承、并列（同向）Ireadanddraw.but但是转折、对比（反向）It’shardbutfun.because因为解释原因Iloveartbecauseit’scolourful.专项分层训练专项一3a基础填空（填and/but/because）Weuse“____”togiveareason.Weuse“____”togiveanotheridea.Weuse“____”togivetwodifferentideas.专项二3b连线匹配（连词句式组合）Ihaveabicycle,—IliketolearnaboutIT—Shelikestolistentomusic—HeisgoodatEnglish,—Myfavouritesubjectisgeography—Idon’tlikedrawing,—A.andheoftenhelpsmewithmyEnglish.B.becauseIliketravelling.C.butIlikemyartteacheralot.D.anddrawpictures.E.butIoftenwalktoschool.F.becauseit’sfuntolearntousecomputers.专项三3c短文填空（and/but/because）IloveThursdayafternoons____wehaveafunclassthen.It’sbiologyclass,____it’sexciting!MissBakeristheteacher,____sheworkshardtomaketheclassinteresting.I’mnotgoodatscience,____Iliketheclassverymuch.Welearnaboutdifferentplants____animals.Sometimesit’sdifficulttorememberalltheinformation,____MissBakerhelpsme.She’smyfavouriteteacher____shemakeseveryoneintheclassfeelspecial.专项四单项选择()1.Ilikegeography____Icanknowdifferentplaces.A.andB.butC.because()2.PEistiring____itmakesmestrong.A.andB.butC.because()3.Ihavemaths____Chineseeverymorning.A.andB.butC.because()4.Hedoesn’tlikehistory____it’sboring.A.andB.butC.because()5.Englishiseasy,____manystudentsstilldon’tlikeit.A.andB.butC.because()6.Ireadbooks____drawpicturesinartclass.A.andB.butC.because()7.ShelikesIT____computersareinteresting.A.andB.butC.because()8.Mydeskmateisgoodatbiology,____heoftenhelpsme.A.andB.butC.because专项五选词填空（and/but/because）Ilovemusic____itbringsmehappiness.Mathsishard____usefulforourlife.Wehavemusic____artonWednesday.Hewalkstoschool____hehasnobike.Thestoryisshort____verywonderful.专项六句型合并（用and/but/because合并两句）Ilikeart.Itiscolourful.Historyisboring.Istilllearnitwell.IhavePE.IalsohavemusiconFriday.Shelovesgeography.Shelikestravelling.Hecan’tstandmaths.It’stoodifficult.专项七句子改错（划出错误连词并改正）IlikeEnglishbutbecauseit’sinteresting.____________PEishard,andIloveit.____________Hereadsbooksbutdrawspictureseveryday.____________Becauseartisfun,butIloveit.____________Idon’tlikesciencebecauseitisdifficult,butIstilltry