公开课人教版七年级下册unit4祈使句PPT教学文稿.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,*,*,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,*,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,*,*,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,*,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,*,Imperative Sentence,Free talk,What can,we,do at school,or in the classroom?,What cant,we,do?,How,t,o,be a good student?,Don,t eat,in class.,Don,t arrive,late for class,Don,t sleep,in class.,Don,t draw,on the wall.,Don,t talk.,Don,t play,sports in the,classroom.,Don,t fight.,Don,t listen,to music in,class.,school rules,Dont.,Review,祈使句是表示请求、命令、建议或劝告等的句子。,一,.,祈使句的概念,Imperative Sentence,二,.,祈使句的特点,We clean the classroom every day,.,He usually goes to the library on weekends.,2.,谓语动词一律用原形。,1.,主语通常为,you,但常省略。,3.,句末根据语气的强弱用感叹号或句号。,Dont arrive late for class.,Sit down,please!,Ms.Chen says,Clean the blackboard.,Stand up!,Sit down,please!,Please open the door.,Turn to Page 21.,Listen to me carefully.,Game:I say,you do,Read and observe(,观察,),Clean,the blackboard.,Stand up!,Listen to me carefully.,Turn to Page 21.,Sit down,please!,Please open the door.,Dont be late for class.,Dont eat in the classroom.,Dont run in the hallways.,Dont fight.,Dont sleep in class.,Dont wear a hat in class.,positive,negative,Draw the conclusion(,得出结论,),祈使句的结构如下：,(Please)+Do sth.,(Please)+,Dont,do sth,.,肯定：,否定,：,注意：,有时可在祈使句的句首或句尾加上,please,，使语气显得客气、有礼貌。,如果在句尾加,please,，应该用逗号与前句隔开。,e.g.Go this way,please,.,请这边走。,Please,go this way.,三,.,祈使句的形式,1.,祈使句的肯定式,(1).,以行为动词原形开头，简称,Do,型,。,e.g.,Come,here.,(2).,以动词,be,开头，简称,Be,型,。,e.g.,Be,quiet,please.,Be,kind to your classmates.,(3).,以,Let,开头，简称,Let,型,。,e.g.,Lets,go!,Lets,play basketball after school.,“,三姐妹,”,Turn right!,Turn left!,Be quiet.,Go upstairs,！,Go downstairs!,signs,2.,祈使句的否定式,(1).,Do,型和,Be,型的否定式是在句首加,dont,。,e.g.,Dont,sit here.,不要坐在这儿。,Dont,be late.,别迟到。,(2).,以,let,开头的祈使句,，其否定式有两种：,一种是,直接在句首加,dont,，,另一种是“,let +,宾语,+not+,动词原形,+(,其他,)”,。,e.g.,Dont let,him go.,不要让他走。,Lets,not go,there.,咱们别去那儿。,“,三兄弟,”,注意：,(3)“No+,名词,/,动词,-ing,形式”表示禁止或规劝，常用于公共场所,。,e.g.,No,photos!,禁止拍照！,No,swimming,！禁止游泳！,Guessing Game,Dont park your car.,Dont smoke!,No parking!,No smoking!,Guessing Game,Dont take photos!,Dont swim here!,No photos!,No swimming!,Library Rules,Dont talk.,_,_,_,Write the rules for the school library.,Dont listen to music.,Dont eat or drink.,Dont take photos.,方法指导：,1.,由图示可知都是一些禁止类的祈使句。,2.,可知应用祈使句的否定形式。,Task 1:,If you are the headteacher,(,班主任,),discuss and make rules for our class.,See which group can say the most,class,rules.,Rules of Class 11,_,_,_,_,_,.,PK,Task 2,Report,Rules of Cass 11,_,_,_,_,_,.,Dont be late for class.,Dont eat or drink in the classroom.,Dont run in the hallways.,Wear school uniforms on school days.,Clean the classroom every day.,祈使句的用法,主语是,you,常省去，动词原形开头记。,否定形式要注意，句首要把,dont,加。,要讲客气用,please,，,句首、句末没关系。,Summary,Be a good student.,祈使句句式,肯定形式,否定形式,Do,型,：动词原形,+,其他,Open the door.,Dont open the door.,Let,型,：,let+,宾语,+,动词原形,+,其他,Lets go there.,1.Dont lets go there.,2.Lets not go there.,Be,型,：,Be+,表语,Be quiet,！,Dont be late for class.,No,型：,No+,名词,动名词,No photos!,No smoking!,Homework,Try to write down,at least five,sentences about,your family rules.,1.Dont,waste,(浪费)water.,7.Don,t,read in bed,.,2.,Make the bed,every day.,3.Wash your hands before meals.,4.,Turn off,the,lights,before you leave the room.,5.Don,t read or eat,at the same time,.,6.Dont talk loudly,on the phone,.,My Family Rules,