Unit 12 Fire 课件

课件20张PPT。Module 4 firefireworkfiremenfire and heatput out fireno fireBe careful with fire.Fire can burn down a lot of trees.Fire can burn down houses.Fire can hurt people.Use “must” to show that you think something is probably true.
Use “might” or “could” to show that you think something is possibly true.
Use “can’t ” to show that you are almost sure something is not true.
情态动词表示推测的用法
情态动词must，might/could， can’t后接
动词原形，可以表示对现在情况的推测。 “肯定、一定” 100% “不可能” 0% “可能、也许” 20-80% Summary Who is he?
He can’t be __________.
不可能是/一定不是
He could/might be _____.
可能是/也许是
He must be __________.
肯定是/一定是GUESSING GAMES Who is she?
She can’t be __________.
不可能是/一定不是
She could/might be _____.
可能是/也许是
She must be __________.
肯定是/一定是GUESSING GAMES Who is he?
He can’t be __________.
不可能是/一定不是
He could/might be _____.
可能是/也许是
He must be __________.
肯定是/一定是GUESSING GAMESWe must ……
We mustn’t ……
What must/mustn’t we do ……?