B3u1 Grammar 情态动词 I ( Modal verbs)一
请找出下列句子中的情态动词
1) He can not come today
2) Could I borrow your bike
3) He may not come today
4) He said that I might use his telephone
5) I must write a letter to the headmaster
6) You don’t have to worry about that
7) Shall we start the meeting now
8) You should keep your promise
9) I will help you
10) Would you like to join the football club
There’s something I ought to tell you before you leave
概念:情态动词表说话人对某一动作或状态的态度
表示“可能、可以、必须、应当”等
情态动词+___________3
)人称和数的变化,但有些有过去式如:can, will 4
情态动词的“时态”的形式并不是区分时间的主要标志
不少情况下,情态动词的现在时形式和过去时形式(如 2、10)都可用来表示_____________、过去时间或将来时间
变为疑问句或否定句时不需要加助动词, 疑问句:情态动词移至主语__________(如 2,7,10) 否定句:一般在情态动词后加_________(如 1,3),除 don’t have to, ought not to二.情态动词的主要用法 1
can 和 could 用法Eg: 1) My grandma is over eig