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1、剑桥二级考前辅导 第二讲 情态动词,情态动词的用法：,can+动词原形 （表示：能够） He can play the guitar. Can you fly a kite? I could see some birds in the tree. can 的否定形式：can+ not = cant can 的过去式：could,must + 动词原型 表示：一定，必须做,You must do your homework after school. You must study hard.,英译汉：,I must go home. You must clean the bedroom. I m
2、ust read books. You must water flowers. He must do homework.,否定式： must not = mustnt 一定不能,You mustnt throw food at animals in the water. You mustnt stand and shout in the boat. You mustnt pick flowers in the park. You mustnt sit on the grass. You mustnt drop litter in the park.,练习题：,-Can you climb trees? -_ A. Yes, I cant B. Yes, I do C. No, I cant You mustnt _ in class. A. shouting B. shout C. shouts,翻译：,1、你不可以在教室里跑。 2、你不可以在图书馆说话。 3、你不可以在墙上画画儿。 4、你不可以在坐在草地上。 5、你不可以在河里钓鱼。,认识这些：,will not= wont shall not= shant must not= mustnt/neednt can not= cant,