外研版（2024）新教材七年级英语下册Unit 4 第2课时 Grammar 同步课件.pptx

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,2025/4/21,#,Unit 4,Grammar,初中英语,/,外研版,/,七年级下册,The art of having fun,目录,Lead in,Presentation,Exercise,Home work,Learning Objectives,Learn to make positive commands and use them correctly in real life.,Know how Chinese and Western public signs/manners differ.,Choose the best way to speak in different public places.,Work in groups to find grammar rules and learn independently.,Learning Objectives,第 一 部 分,Lead in,Look at the vedieo,If you were the principal,you will say.,If you were the principal,you will say.,Look at the vedieo,Be quiet!,You can say what?,Dont run!,第 一 部 分,Prensentation,We often see these signs in various settings.,We often see these signs in various settings.,Summarize the grammatical features,两个句子都是动词开头,第一句开头使用动词原形,第二个句子使用,Dont+,动词原形,Now find more sentences with these structures in the reading passage.,Just picture yourself watching a funny film on that island.,So,next time,invite your friends to enjoy live music together.,句子,特征,(1),通常没有主语,(,主语是,you,，被省略了,),。

2),以动词原形开头，无时态变化3),主要用于表示请求、建议或者劝告等4),否定形式通常是在动词原形前加,dont,Summarize the grammatical features,用于表达命令、请求、劝告、警告、禁止等的句子叫祈使句Who is the writer talking to?,Why does the writer use,sentences like these?,祈使句的结构,祈使句的肯定形式,:,1.,动词原形,Do,型宾语,)+,其他,.,Please have a seat here.,请这边坐2.Be,型,Be+,表语,+,其他,Be a good child!,要做个好孩子3.Let,型,Let+,宾语,+,动词原形,+,其他,.Let me help you.,让我来帮你祈使句的否定形式,:,1.,动词原形,Be,型,在句首加,dont(,若句首有,please,则在,please,后加,dont),2.Let,型：,Dont+let+,宾语,+,动词原形,+,其他,.,Let+,宾语,+not+,动词原形,+,其他,3.,用,no,开头,表示禁止的祈使句。

No smoking!,禁止吸烟,!,No fishing!,禁止垂钓,!,No photos!,禁止拍照,!,Dont worry,Try,Read,Join,Enjoy,Share,Explore,Make,Dont miss out,call,第 三 部 分,Exercise,1.Jack,_,(not play)football in the street.Its very dangerous.,Sorry,Ms.Green.,2._ me,please.Ill show you the way.(follow),3._(not kill)the wild animals.,4.Dont _(forget)to turn off the lights when you leave the room.,5.Please _ quiet in class,our teacher is teaching.(be),dont play,Follow,Dont kill,forget,be,1.,请大声点儿我听不见你说话please.I cant hear you.,2.,请帮我加热一下米饭。

Please _ _ the rice for me.,3.,等等我，我就来 _ me,Im coming.,4.,上学别迟到 _ _ _ school.,5.,禁止游泳！,_ swimming!,Speak louder,heat up,Wait for,Dont be late for,No,1.You mustnt talk aloud in public.,_,_,aloud in public.,2.Youd better not stand under the tree in the rainy day.,（改为同义句）,_ _ under the tree in the rainy day.,3.No photos here.(,改为同义句,),_ _ photos here.,4.Shall we go to the supermarket to buy some vegetables?,（保持句义不变）,_ _ to the supermarket to buy some vegetables.,5.Be careful!Here comes the bus!(,同义句改写,),_ _!Here comes the bus!,6.If you are careless,you wont get good marks in the coming final exams.(,同义句,),_ _,or you wont get good marks in the coming final exams.,Dont talk,Dont stand,Dont take,Lets go,Look out,Be carful,第 四 部 分,Homework,Keep your,room clean,用祈使句为自己的房间制定一套规则，并做成海报。

Never write,on the walls,Dont leave your shock on the floor,Useful sentences,Dont stay up late,。