外研版九年級英語下冊《Language in use》Education PPT課件下載，共40頁。
Language practice
1. You must be careful of falling stones.
2. You mustn’t walk too close to the edge of the hill path because you might fall and hurt yourselves.
3. You should always wear proper clothes.
4. Bears might think our rubbish is food.
5. — Can we go rock climbing?
— No, you can’t.
6. You mustn’t go off on your own.
7. You may need some water.
8. We should hang the food in a tree tonight.
9. They can smell food from a long way away.
10. Bears might think our rubbish is food.
11. No one can run faster in the forest than a bear.
12. You mustn’t make any sudden moves or make a sound. And above all, you mustn’t run.
Modal verbs
1. 表示能力
表示一個人能做某事時，常用can或could。
eg My five-year-old daughter can draw a beautiful picture in five minutes.
我五歲的女兒能在五分鐘之內(nèi)畫出一幅漂亮的圖畫。
As soon as Mike could read, he read books about robots.
邁克剛能看懂書，就看關(guān)于機(jī)器人的書。
2. 表示可能性
如果要表達(dá)“可能，可能性”，可以用may/ might或 can/could。
eg Jane may be at home. Jane可能在家。
I might talk to him.
我可能會跟他說說。
You can go to Beijing by train.
你可以坐火車去北京。
3. 表示許可或征求對方許可
如果表達(dá)允許某人做某事，或征求對方的許可，可以用can/could/may/might。
eg You can / may start your work now.
你現(xiàn)在可以開始工作了。
Could / May I come a little later tomorrow? I don’t feel myself.
我明天可以晚到一會嗎? 我覺得不太舒服。
4. 表示請求對方做某事
如果要請求對方做某事，可以用下列表達(dá)方式：
Will / Would / Could you (please) …?
Would you mind …?
eg Would you please help me with this suitcase?
你可以幫我拿這個手提箱嗎？
Would you mind turning down the music?
你能把聲音關(guān)小點兒嗎？
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關(guān)鍵詞：Language in use PPT課件免費下載，Education PPT下載，.PPTX格式；
