《The Value of Money》SectionⅢ PPT课件下载

人教版高中英语必修三《The Value of Money》SectionⅢ PPT课件下载，共52页。

《The Value of Money》SectionⅢ PPT课件课件包含语法精讲、冲关训练等内容。

复习情态动词

情态动词表示说话人对某一动作或状态的态度。初中阶段大家已经学习了一些情态动词，这里将对情态动词的特征、功能和用法进行总结。

[观察例句]

1．Oliver believes that with a million­pound bank note a man could live a month in London.

2．Young man，would you step inside a moment，please?

3．May we ask what you're doing in this country and what your plans are?

4．I can't say that I have any plans.

5．Anyway，I didn't dare to try again.

6．You mustn't worry about that.

7．If you'll excuse me，I ought to be on my way.

[归纳用法]

1．情态动词的基本特征

(1)在形式上，情态动词没有实义动词的各种变化，只有could，would，had to，might等几个过去式，其他情态动词如must、ought to等的过去式皆与现在式同形。

(2)在意义上，大多数情态动词有多个意义，如can可以表达“能力；可能；许可”等。

(3)在用法上，情态动词与助动词一样，需后接动词原形，构成谓语动词。

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