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Unit12祈使句:请求、命令、建议、劝告等请求:Bringmethatbook,please.命令:Don’teatinclass.建议:Let’sgotothezoo.劝告:Putonyourcoat,it’scoldoutside.3.Haveto与must(做题时可替换)haveto(have为v.所以需要助动词)HehastocleanmyroomHedoesn’thavetocleanmyroom.Doeshehavetocleanmyroom?Yes,hedoes./No,hedoesn’t.Must(为情态动词,用法同can/may)Imustcleanmyroom.Imustn’t/needn’tcleanmyroom.MustIcleanmyroom?Yes,youmust/No,youneednt.4.other与else1)other为形容词,后跟名词:otherthings/otherpeople2)else为副词,修饰动词或不定代词:somethingelse/anythingelse.常见句型:Whatotherthingscanyoudo?=Whatelsecanyoudo?注意:Whatotherscanyoudo?5.toomany太多,用来修饰可数名词。e.g.动物园里孩子太多了。Therearetoomanychildreninthezoo.toomuch修饰不可数名词,还可修饰动词。e.g.我们有太多家庭作业。wehavetoomuchhomework.他说太多了。Hetalkstoomuch.muchtoo太,修饰形容词。e.g.这块手表太贵了。Thewatchismuchtooexpensive.6.onschoolnights在上学期间的晚上,指某个具体的晚上,用on又如:onwinternights/onSundaynights/onacoldnighte.g.在星期天晚上我通常睡觉很晚。IusuallygotobedlateonSundaynights.7.beinbed睡觉,在床上,卧床e.g.他哥哥卧病在床。Herbrotherisillinbed.8.byteno’clock在十点以前(包括十点)e.g.他必须在十一点之前回去。Hehastogobackbyeleveno’clock.beforeteno’clock在十点以前(不包括十点)9.LaterIhavetogotheChildren’sPalacetolearnthepiano.1)later作副词,“以后,后来”Iwilltellyoulater.以后我再告诉你。2)theChildren’sPalace少年宫。注意节日前没有the.儿童节Children’sDay3)tolearnthepiano去学钢琴,表示目的,原因,结果等,对前文起补充说明的作用。e.g.他来这里看望他父母。Hecameheretovisithisparents.