外研版（2024）七年级下册（2024）Understanding ideas教学演示ppt课件

这是一份外研版（2024）七年级下册（2024）Understanding ideas教学演示ppt课件，共23页。PPT课件主要包含了Be quiet，Dont run，句子特征，祈使句的结构，Try，Read，Join，Enjoy，Share，Explore等内容，欢迎下载使用。
Learning Objectives
Learn t make psitive cmmands and use them crrectly in real life.Knw hw Chinese and Western public signs/manners differ.Chse the best way t speak in different public places.Wrk in grups t find grammar rules and learn independently.
Lk at the vedie
If yu were the principal,yu will say...
Yu can say what?
We ften see these signs in varius 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Dn’t +动词原形
Nw find mre sentences with these structures in the reading passage.
Just picture yurself watching a funny film n that island.
S, next time, invite yur friends t enjy live music tgether.
(1)通常没有主语(主语是yu，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dn't。
用于表达命令、请求、劝告、警告、禁止等的句子叫祈使句。
Wh is the writer talking t? Why des the writer use sentences like these?
祈使句的肯定形式:1.动词原形 D型宾语)+其他. Please have a seat here.请这边坐。2.Be型Be+表语+其他 Be a gd child!要做个好孩子。3.Let型Let +宾语+动词原形+其他. Let me help yu.让我来帮你。
祈使句的否定形式:1.动词原形 Be型
在句首加dn't(若句首有please,则在please后加dn’t)
2.Let型：①Dn’t + let +宾语+动词原形+其他.②Let+宾语+nt+动词原形+其他
3.用n开头,表示禁止的祈使句。N smking!禁止吸烟!N fishing!禁止垂钓!N phts! 禁止拍照!
Dn't miss ut
1 . — Jack, ________ (nt play) ftball in the street. It’s very dangerus.— Srry, Ms. me, please. I’ll shw yu the way.(fllw)3 . ________ (nt kill) the wild animals.4 . Dn’t ________ (frget) t turn ff the lights when yu leave the rm.5 . Please ________ quiet in class, ur teacher is teaching. (be)
1 . 请大声点儿。我听不见你说话。________ ________ please. I can’t hear yu.2. 请帮我加热一下米饭。Please ________ ________ the rice fr me.3 . 等等我，我就来。________ ________ me, I’m cming.4 . 上学别迟到。 ________ ________ ________ ________ schl.5 . 禁止游泳！________ swimming!
Speak luder
heat up
Wait fr
Dn't be late fr
1 . Yu mustn’t talk alud in public.________ ________ alud in public.2 . Yu’d better nt stand under the tree in the rainy day.（改为同义句）________ ________ under the tree in the rainy day.3 . N phts here. (改为同义句)________ ________ phts here.4 . Shall we g t the supermarket t buy sme vegetables?（保持句义不变）________ ________ t the supermarket t buy sme vegetables.5 . Be careful! Here cmes the bus! (同义句改写)_________ _________! Here cmes the bus!6 . If yu are careless, yu wn’t get gd marks in the cming final exams. (同义句)________ ________, r yu wn’t get gd marks in the cming final exams.
Dn’t talk
Dn’t stand
Dn’t take
Let’s g
Lk ut
Be carful