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人教版七年级下册英语第四单元知识点梳理Unit4Don’teatinclass.短语整理•(be)ontime准时•listento…听……•goout外出（娱乐）•dothedishes清洗餐具•make(one’s)bed铺床•bestrict(withsb)（对某人）要求严格•followtherules遵守规则•inclass在课上•belatefor做……迟到•haveto不得不•havefun玩得开心•makerules制定规则•bequite安静•practicetheguitar练习吉他•onschoolnights在上学日的晚上•keep…short保持简短用法讲解•(be)ontime准时oontime准时（“late迟到”的反义词）：Wefinishedthemeetingontime.ointime及时（刚好/正好赶上）：Wegottothestopjustintimetocatchthebus.•listento…听……olistentomusic;listentotheradioolistenv.听：有意识地听▪Iheardthemchattinginthatroom,butIdidn’tlistentowhattheyweresaying.ohearv.听：指声音进入耳朵里，不一定是有意识地听▪Canyouhearme?•dothedishes清洗餐具othedishesn.（待清洗的）餐具odothelaundry洗衣服osweepthefloor扫地omopthefloor拖地odothecooking做饭•make(one’s)bed铺床oRemembertomakeyourbed!•bestrict(withsb)（对某人）要求严格oTheteacherisstrictwithus.•followtherules遵守规则o=obeytheruleso=observetherulesoWemustfollowtherulesintheschool.•inclass在课上oYoushouldn’teatinclass.上课时不能吃东西。ointheclass在班上：Sheisthebeststudentintheclass.oIntheclassroom在教室里：Thestudentsareintheclassroom.•belatefor做……迟到oDon’tbelateforschool.上学别迟到•haveto不得不oWehavetoleavetheroombecauseitwillbeusedforanactivity.ohaveto客观需要，不是主观上的必须omust主观上的必须•havefun玩得开心o-I’mgoingtohaveadaytriptomorrow.-Havefun!ohavefundoingsth:YouwillhavefunlearningEnglish.•makerules制定规则o=setrules•bequite安静oBequite!安静！oSheisquite.她很安静。•practicetheguitar练习吉他oSheusuallypracticetheguitarinthemorning.opracticethepiano练钢琴•onschoolnights在上学日的晚上oIcan’tgoshoppingonschoolnights.•keep…short保持简短oForthisquestion,youdon’tneedtowritealongparagraph.Justkeepitshort.对于这个问题，你们不用写一大段话来回答，保持简短就好。重点句子•OK,sowemustbeontime.对的，所以我们必须守时。•Don’tleavethedirtydishesinthekitchen!别把脏碗留在厨房里！•Afterdinner,Ican’trelaxeither.晚饭后我也不能放松。•Therearealotofthingsyoucando.有许多你可以做的事情。经典句型•Don’t…oDon’truninthehallways.oDon’teatinclass.•CanI/we…?o-Canwewearahatinclass?-No,wecan’t./Yes,wecan.•Doesshehaveto…?o-Doesshehavetowearauniformatschool?-No,shedoesn’t./Yes,shedoes.•-Whataretherules?-Wehaveto…•Whatdoyouhavetodo?语法知识•祈使句o用法：一般用来表示请求、命令、劝说、号召、警告等。o使用时通常省略第二人称主语you▪Don’tbelateforschool.o肯定式：以动词原形开头否定式：在动词原形前+don’t▪肯定式：Giveittome.▪否定式：Don’tlistentomusicinclass.•情态动词cano表示许可、能力或请求▪Wecanlistentomusicinthehallways.（许可）▪Shecanplaythepiano.（能力）▪CanIreadthatbook?（请求）•haveto和mustohaveto▪不得不，必须▪一般指别人强加的义务，强调客观需要，而不是主观的必须▪可用于不同时态：hadto▪有人称和数的变化：hehasto/Ihaveto/theyhaveto▪Wehavetodohomeworkeveryday.omust▪必须▪表示说话人的主观看法▪语气强烈▪一般只表示现在，无人称和数的变化▪Wemustleavenow.