七年级英语下册Unit12Donteatinclass—SectionA2课件人教新目标版.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 12,Dont eat in class.,classroom,uniform,3a Fill in the blanks with the correct words.,uniform,classroom,sports shoes,sports shoes,Grammar,肯定祈使句,Sit down.,Come in.,Eat at home.,否定祈使句,Dont,sit down.,Dont,come in.,Dont,eat at home.,祈使句,是用来表示请求、命令、叮嘱、号召或者劝告等的句子,这类句子的主语常是第二人称,you,也就是听话者,因而,you,常省去了。祈使句的开头是,动词原形,。,Listen to music outside.,Dont,listen to music outside,.,Do your homework at school.,Dont,do your homework at school,.,如,:,Lookout!,小心！,Waithereforme!,在这等我！,Besuretocomehereontime!,务必准时来到这里！,祈使句的否定形式多以,donot,(,常缩写成,dont,),开头,再加上动词原形。,Dontarrivelateforschool.,上学别迟到。,Dontfight!,别打架！,Dontlookoutofthewindow.,不要向窗外看。,1.,情态动词,haveto,的用法,意思是“必须、不得不,”,它侧重于客观上的必要和外界的权威。,(1),结构,:,主语,haveto,动词原形其他,(,一般现在时,主语是第三人称单数时,用,hasto,;,句子是过去时,用,hadto,),如：,Explanation,We,haveto,wearsneakersforgymclass.,在体育课上,我们必须穿运动鞋。,Tom,hasto,practicetheguitarevery,day.,汤姆每天必须练习弹吉它。,I,hadto,getupat5:00amlastMonday.,上周一我不得不早上,5,点起床。,(2),否定形式,:,主语,donthaveto,动词原形其他,(,一般现在时,主语是第三人称单数时,用,doesnt have to;,句子是过去时,用,didnthaveto,),如,:,Nick,doesnthaveto,wearauniform.,尼克不必穿制服。,We,didnthaveto,doourhomework atonce.,我们不必马上完成作业。,(3),疑问句,:,Do(Does,或,Did),主语,haveto,动词原形其他如：,Do,you,haveto,stayathomeonweekends?,周末你必须呆在家里吗,?,Yes,Ido./No,Idont.,是的,我必须。,/,不,我不必。,Didhe,haveto,gotobedby11:00,last night?,昨晚他不得不,11,点前上床睡觉吗？,2.,情态动词,can,的用法,表示能力,“会,能”,Can,youplaytheguitar?,你会弹吉它吗？,Judy,can,speakalittleChinese.,朱蒂会说一点中文。,(2),表示允许、许可,“,可以,”,、“能”,(,在这一课中新学的词义,),I,can,danceandsing.,我能唱歌又能跳舞。We,can,eatoutside.,我们可以在外面吃东西。,Can,thestudentsruninthehallways?,学生们可以在走廊上跑吗？,CanIcomein?,我能进来吗？,注意,:,同样是情态动词,can,和,haveto,的用法是有区别的,和大部分情态动词一样,can,在否定句中,直接在,can,后加上,not,在疑问句中,把,can,放到主语前面,并且没有人称和数的变化。,3.,hear,listen,和,sound,都有,“听”,的意思,但三者是有区别的。,hear,“,听说”,侧重于,“听”,的内容。,Imsorryto,hear,thatyouareill.,听说你生病了,我很难过。,Listento,mecarefully.,认真听我说。,Thechildrenliketo,listento,music.,孩子们喜欢听音乐。,Inever,heard,suchaninterestingstory.,我从来没听过这么有趣的一个故事。,(2),listen,“,听”,侧重于,“听”,这一动作。,(3),sound,“,听起来”,它是系动词,后面接形容词等。,That,sounds,great.,那听起来真不错。,It,sounds,likefun.,听起来挺有趣。,4.,arrivelatefor,与,belatefor,意思相近,“,迟到”,Dontarrive/be latefor,school.,上学别迟到。,Iarrived/,was late for,the meeting yesterday.,我昨天开会迟到了。,5.,Notalking!,“,禁止交谈！”,no,后面加上名词或动名词,(doing),也表示不要做某事,与,dont+do,的用法相似。,Nowetumbrellas!,Dontputwetumbrellasher.,禁止放湿雨伞！,Nofood!/Donteatfoodhere!,禁止吃食物！,Nosmoking!/Dontsmokehere!,禁止吸烟！,late,dont,for school,arrive,2.music,listen to,in the classroom,dont,3.eat,cant,in the classroom,we,Dont arrive late for school.,Dont listen to music in the classroom.,We cant eat in the classroom.,Form sentences,Exercises,Test:A.Complete the sentences.,1._(,帮助,)me to do housework,please.,2.Please _(,擦,)the blackboard.,_(,不要关,)the door.,Help,clean,Dont shut,B:Put the following into English.,1.,请关上窗。,2.,请不要站在桌子。,3.,请课后打篮球。,Please close the window.,Please dont stand on the desk.,Please play basketball after class.,请按要求完成下列句子,每空一词,(,含缩写,),。,1.Throw the basketball like that.(,改为否定句,),_ _ the basketball like that.,2.We can go to a movie this weekend.,(,改为一般疑问句,),_ you _ to a movie this weekend?,Dont throw,Can,go,3.We cant listen to music in class.,(,改为祈使句,)_ _ to music in class.,4.Does your mother have to work on weekends?(,改为肯定句,),My mother _ _ work on weekends.,5.He has to wear,a hat,.(,对划线部分提问,),_ _ _ _ to wear?,What does he have,Dont listen,has to,