七年级英语下册Unit4Don’teatinclass课件2新版人教新目标版.ppt

SectionB实践”,其后可跟名词、代词或动词-ing形式作宾语。Ipracticeplayingthepianoeveryday.我每天练习弹钢琴。(2)practice作名词,意为“练习;实践”,常用作不可数名词。Practicemakesperfect.熟能生巧。,1,2,3,4,5,1,2,3,4,5,2.beforedinner(教材P22)晚饭前解读(1)before介词,意为“在以前”,反义词为after,后接名词、代词或动词-ing形式,常作时间状语。Imustfinishmyhomeworkbefore9:00.我必须在9点以前写完家庭作业。Iliketolistentomusicbeforegoingtobed.我喜欢睡觉前听音乐。(2)作连词,意为“在以前”,引导时间状语从句。ItwassometimebeforeIrealizedthetruth.过了很长一段时间我才悟出真相。(3)作副词,意为“以前”,常用于现在完成时态中。Ihaveneverseenhimbefore.我以前从未见过他。,1,2,3,4,5,1,2,3,4,5,3.Parentsandschoolsaresometimesstrict,butremember,theymakerulestohelpus.(教材P23)父母和学校有时是严格的,但是记住,他们制定规则是为了帮助我们。解读strict形容词,意为“严格的;严厉的”。IsyourEnglishteacherstrict?你的英语老师严厉吗?一言辨异严于律“物”与严于待“人”的strictbestrictwith对要求严格,后接表示人的名词或代词;表示对某事要求严格,则用bestrictin。Mr.Smithisstrictwithusandheisalsostrictinhiswork.史密斯先生对我们很严格,他也对工作要求严格。,1,2,3,4,5,1,2,3,4,5,4.Ihavetokeepmyhairshort.(教材P24)我必须留短发。解读keep为动词,意为“保留;保存;保持”。keep+sth.+adj.“让某物保持某种状态”,属于“keep+宾语+宾语补足语”结构,其中宾语补足语常由形容词、副词或介词短语充当。Pleasekeepthewindowclosed.请让窗户关着。,1,2,3,4,5,拓展keep的常见用法:(1)“keep+形容词”,表示“保持某种状态”。Youneedtotakemoreexercisetokeephealthy.你需要多锻炼来保持健康。(2)keepsb.doingsth.让某人一直做某事Dontkeephimstanding.别让他一直站着。(3)keepondoingsth.坚持做某事Ifyoukeeponworkinghard,yourdreamcancometrueoneday.如果你坚持努力工作,你的梦想总有一天会实现的。,1,2,3,4,5,1,2,3,4,5,5.Ineverhavefun.(教材P24)我从未开心过。解读fun“愉快;开心,乐趣”,是不可数名词。havefun意思为“玩得开心”,相当于haveagoodtime和enjoyoneself。Swimmingisgreatfun.游泳很有乐趣。拓展延伸(1)havefun(in)doingsth.做某事很开心WehavefunlearningEnglish.我们学英语很开心。(2)fun形容词,意思为“有趣的;令人愉快的”。IlikeEnglishbecauseitsfun.我喜欢英语因为它有趣。,1,2,3,4,5,SectionB1ahcebgdf1b参考下一题答案1ca.gooutcantonschoolnightsh.seefriendscantonschooldaysc.dohishomeworkhaveto/mustafterclasse.practicetheguitarhaveto/mustbeforedinnerb.dothedisheshaveto/mustafterdinnerg.watchTVcantintheeveningd.helphismommakebreakfasthaveto/musteverymorningf.cleanhisroomhaveto/musteverySaturday,2bUnderlined:Getupnowandmakeyourbed;Dontleavethedirtydishesinthekitchen;cantbelate;dontbenoisy;donteatinclass;cantplaybasketballafterschool;mustdomyhomework;Icanplayonlyonweekends;readabookbeforeIcanwatchTV;havetogotobedbefore10:002c1.cant;can2.hasto/must3.hasto/must;can4.cant5.haveto/must3aCan,haveto/must,haveto/must,haveto/must,cant,haveto/must,cant,haveto/must,can,SelfCheck1arrivelate,benoisy,listento,isstrict,followtherules22.Listentotheteacher./Wemust/havetolistentotheteacher.3.Wemustnotbenoisyinthelibrary./Wecantbenoisyinthelibra