《Language in use》Help PPT课件
Summary
祈使句结构如下：
肯定：(Please) + do sth.
否定：(Please) + Don’t do sth.
DO，可以放在动词前，为加强语气用。
如：Do come in, please!
Do listen to me, please!
Do open the door, please!
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一、我们已经学习的表推测的情态动词有：
must/can/could/may/might
二、表推测的三种句式：
1. 在肯定句中一般用must，can/could，may/might，程度逐渐减弱。
e.g. He must/may/might know the answer to this question.
e.g. You have worked all this week. You must be tired.
2. 在否定句中用can’t/couldn’t (不可能)，may not/ might not(可能不)。
e.g. It can’t /couldn’t be the headmaster. He has gone to America.
e.g. He may not/might not know the scientist.
3. 在疑问句中，一般只使用can/could。
e.g. Could he have finished the task?
e.g. Can he be at home now?
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Language practice
That could be harmful!
Betty, you must know!
Stay away from windows and heavy furniture.
Do not stand near street lights or under power lines.
1 Complete the sentences with could, must or mustn’t.
1.It is dangerous. You ________keep out!
2.These stairs are not safe. You _______use them.
3.The rocks are falling down. You ______get hit.
4.The river is too deep. You ________swim in it.
5.Betty _______know what to do , because she did some basic medical training.
2 Underline the correct words to complete the first aid instructions.
1 Get / Do not get medical help immediately.
2 Ask / Do not ask them where the pain is.
3 Lift / Do not lift them because you may drop them.
4 Keep / Do not keep them warm.
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Now read the report again and check (√) the true sentences.
1 There are problems everywhere because of rain.
2 The government is warning people about an earthquake.
3 Some roads in the mountains have a lot of rocks on them.
4 People are trying to clear the rocks off the roads.
5 There is no problem with power.
1 What is the best title for this passage?
a) 2004 Asian tsunami.
b) A girl saves tourists from tsunami.
c) Underwater earthquakes
2 What did Tilly notice?
a) Water coming to the beach.
b) People watching the water.
c) Bubbles in the water.
3 What does her teacher think of Tilly?
a) She is lucky.
b) She does not do silly things.
c) She is a clever student.
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Language points
1.A ten-year-old girl saved about one hundred other tourists in 2004 by warning them that a tsunami, a huge ocean wave, was on its way across the sea.
1) A ten-year-old girl “一个十岁的女孩”
基数词 + year (注意单数) + old 用作形容词 表示“多大年龄的……”
e.g. She has a eight- year- old brother.
2) warn sb. that…意为“提醒/警告某人注意… 如：I was going for a swim in the sea. The people in the hotel warned me that it may rain
In a few minutes.
我要去海里游泳，宾馆里的人提醒我可能过会要下雨。
3) on its way 在路上，在途中
She did a bit of shopping on the way home.
她在回家的路上买点东西。
2. Tilly’s teacher was very proud of her…
be proud of sb. 为某人感到自豪
e.g. I just want you to be proud of me, honey.
我只是想让你为我自豪,亲爱的。
If he becomes a doctor when he grows up, his parents will be proud of him.
如果他长大后成了医生,他的父母会以他为荣的。
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Exercises
1. --Is this Lan Qiang’s boxing glove?
--Yes, it _______ be his. This is his name on the back.
2. You’d better take an umbrella. It _________ rain this afternoon.
3. It’s the library! So you ____ know shouting is not allowed here.
4. --Have you decided where to spend your summer holiday?
--Not yet. We ____ go to Qingdao.
5. --Is Jessica giving us a speech this evening?
--No, it ______ be her. She has been to Japan.
6. --What will the weather be like tomorrow?
--It _____ be rainy, cloudy or sunny. Who knows?
7. You _____ be tired after playing sports for a long time without a rest.
8. --Can I tell Peter about the news?
--No, I don’t want anyone else to know it.
You _______ keep it to yourself.
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Homework
Talk with your classmates about the knowledge of how to survive or protect yourself in an accident. Then try to make a role play.
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