Let students read the sentences they picked out, think over and discuss with a partner how each of these modal verbs is being used in the situations. If students have some difficulty, give them a hand.
3. Summing up: the use of can, could, may, might, will, would, shall, should, must and can’t.
情态动词 (Modal Verbs)
情态动词主要用来表示说话人的看法、意愿、态度等。从用法上来说, 它有如下几个特点:
1)情态动词本身都有一定的词义;
2)情态动词单独不能在句子中充当谓语;
3)情态动词没有人称和数的变化;
4)情态动词后接都不带to的不定式(除ought外), 即接动词原形。
常用情态动词的基本用法
1. can/could
1)表示脑力或体力上的能力
Nobody can stop the development of science.
谁也无法阻止科学的发展。
She can sing that song in English. 她能用英文唱那首歌。
He could hardly support his family before he found the new job.
他在找到那份新工作前几乎无法养家糊口。
I could not understand the lecture on the computer given by Mr. Smith.
我听不懂史密斯先生作的那个关于计算机的讲座。
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