來源:網(wǎng)絡(luò)資源 2023-06-13 21:14:28
情態(tài)動(dòng)詞
can(能,會), may(可以,可能,也許), must(必須,一定,應(yīng)該) have to(必須,不得不)
1. 肯定句結(jié)構(gòu):主語+can/may/must+動(dòng)詞原形+其它例如:I must go now.
2. 否定句結(jié)構(gòu): 在can/may/must后加not例如: You mustn’t talk aloud in the library.
3. 一般疑問句結(jié)構(gòu): 把can/may/must提在主語前例如:Must you go now? (Yes, I must. No, I needn’t.) May I open the window? (Yes, you may. No, you needn’t.)
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