49.不定式作主語 1.不定式(短語)常可用作主語,如: To see is to believe. 眼見為實?! o act like that is fool... [查看全文]
48.不定式的句法作用 1.除了構成謂語外(如與情態(tài)動詞構成復合謂語),不定式還可在句中用作: 1)主語: To go or not to g... [查看全文]
47.情態(tài)動詞need 和dare 一.情態(tài)動詞need:need只有在疑問句和否定句中可用作情態(tài)動詞,表示需要: Need we answer this le... [查看全文]
46.情態(tài)動詞must 和ought 一.must主要用來表示: 1.必須,一定要: We must be careful. 我們必須小心?! ou must... [查看全文]
45.情態(tài)動詞may 和might 一. may可以用來表示 1.(可不)可以: May I ask you a question? 我能問你一個問題嗎? ... [查看全文]
44.情態(tài)動詞can和could I.情態(tài)動詞can可以用來: 1.表示能夠: Two eyes can see more than one. 兩只眼睛比一只眼... [查看全文]
43.助動詞would 1.would主要用構成過去將來時(可用于各個人稱): I knew you would agree. 我知道你會同意的?! tho... [查看全文]
42.助動詞should 1.should作助動詞主要用于過去將來時,用于第一人稱: I told him that I should see her on Friday.... [查看全文]
41.助動詞shall 和will I.助動詞shall: 1.shall主要用來構成將來時態(tài),用于第一人稱: We shall arrive tomorrow morni... [查看全文]
40.助動詞do 助動詞do可以用來: 1.構成疑問句: Does he know Chinese? 他懂漢語嗎? How do you like the wea... [查看全文]