英语：unit 13 safety rules part 3课件（北京课改版八年级上）

课件19张PPT。 Unit 13 Safety Rules
Part III Language In UseRevision Grammar Focus I Practice IGrammar Focus II and Practice IIGrammar Focus III and Practice IIISummary and ExercisesHomeworkvFor students who come to school on foot, they can_______________ when the light is green. They must _________________________ before they cross the road. vFor students who come to school by bike, they must ____________________. They should ___________ across the crosswalks and in school. cross the roadlook both right and leftstop for the red lightwalk the bikeBasic traffic rulers
For students who come to school by bus, they must _______________, _______________ and _____________________________. They mustn’t _________ at the bus stop. When the bus arrives, they must ____________first and __________________________. They must _______________ to get on the bus. On the bus, they must _____________ and mustn’t ________________________________________ .
You must obey the traffic rules.
You must stop for the red light.
You mustn’t put your head out of the bus windows.
You mustn’t play football on the roadway. Grammar Focus I
Read and understandWrite down what these signs mean.You mustn’t stop here.
You mustn’t swim here.You mustn’t smoke here.You mustn’t turn left.
You must stop here.
You must drive at 40 kilometers .
Look and use must or musn’t make sentences. come home after school, play computer games outsideYou must _________________________________.
You mustn’t _______________________________. come home after schoolplay computer games outside stay away , play with knifeYou must ________________________.
You mustn’t ______________________. stay away from knivesplay with knife be careful , open the doorYou must _________________________________.
You mustn’t _______________________________. be careful a strangeropen the door for a strangerYou must ___________________________________.
You mustn’t __________________________________. stay away from the tigers give food to the tigers near the cage 要求某人做某事时,可以用You must do sth. 或Remember to do sth. 例如:
你必须遵守交通规则。
记住在人行道上骑单脚滑行车。
You must obey the traffic rules.
Remember to ride your scooter on the sidewalk.
Grammar Focus II You must stay away from scissors.
Or
Remember to stay away from scissors. keep不允许某人做某事时,可以说You can’t do sth. 或 Don’t do sth. 。语气在强一点可以用 Never do sth.或者You mustn’t do sth. 例如:
你千万不要在河里游泳。
禁止在此处吸烟。
千万不要在迟到了。
千万不要把头、胳膊或叫伸出车窗外。
You mustn’t swim in the river.
You mustn’t smoke here.
Never be late again.
Never put your head, arms, or feet out of the bus windows. Grammar Focus III You mustn’t go near the open windows.
Or
Never go near the open windows. touch sth. Summary and Exercises1.情态动词may表示“可以”,含有may的一般疑问句表示 请求、许可时，它的否定句回答不能用may not， 而是can’t 或mustn’t。我可以用你的电脑吗？
可以。
不，不能用。May I use your computer？
Yes,you may.
No, you can’t./No, you mustn’t. 2.情态动词must表示“应该”“必须”。否定形式 must not（mustn’t),表示“不应该”“不允许”“不准”等。本单元mustn’t的主要用法是表示禁止和警告。在回答must的问句时，肯定回答是Yes, you must.否定回答是 No, you need not (needn’t). 表示“不必”,而不用mustn’t。我现在必须走吗？
是的,你必须走。
不，你不必走。Must I go now？
Yes,you must.
No, you needn’t.
Can I give food to the tigers?
Must I obey the traffic rules?
May we go boating in the lake?
Must we come back in the afternoon?No, you needn’t. But you must return before 7.
Yes, you must, or it will be dangerous.
I’m afraid you can’t. You mustn’t go near these animals.
Yes, you may. But you must wear the life jackets. ( )
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( )CBDAMatch the questions with the answers: Homework
Write a short paragraph on home safety, using must, remember to or never in your paragraph.Today , we will talk about children’s safety at home. When you are at home alone, you should be careful.
You must_____________________.
You mustn’t___________________.
Remember to _________________.
Never________________________.