人教版高中英語必修三《The Value of Money》SectionⅢ PPT課件下載,共52頁。
《The Value of Money》SectionⅢ PPT課件課件包含語法精講、沖關(guān)訓(xùn)練等內(nèi)容。
復(fù)習(xí)情態(tài)動詞
情態(tài)動詞表示說話人對某一動作或狀態(tài)的態(tài)度。初中階段大家已經(jīng)學(xué)習(xí)了一些情態(tài)動詞,這里將對情態(tài)動詞的特征、功能和用法進(jìn)行總結(jié)。
[觀察例句]
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.
[歸納用法]
1.情態(tài)動詞的基本特征
(1)在形式上,情態(tài)動詞沒有實義動詞的各種變化,只有could,would,had to,might等幾個過去式,其他情態(tài)動詞如must、ought to等的過去式皆與現(xiàn)在式同形。
(2)在意義上,大多數(shù)情態(tài)動詞有多個意義,如can可以表達(dá)“能力;可能;許可”等。
(3)在用法上,情態(tài)動詞與助動詞一樣,需后接動詞原形,構(gòu)成謂語動詞。
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