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【辨析】情態(tài)動(dòng)詞“ have to”與其他的情態(tài)動(dòng)詞如 “ can” “ may” “ must”和 “ should”不同。 1. 這 4個(gè)情態(tài)動(dòng)詞沒有人稱的變化 ,而 have to有 , 它的第三人稱單數(shù)為 “ has to” 。 He should/has to study 。 考點(diǎn)集訓(xùn) 03 2. 這 4個(gè)情態(tài)動(dòng)詞在一般疑問句中將它們放 在句 首 , 在否定句中直接在他們后邊加 not即可。而“ have to” 要加助動(dòng)詞 do , does或 did才可能完成其疑問句、否定句。 以 can為例 : Can he go with us? 他能和我們一起去嗎? He can’ t go with us. 他不能和我們一起去。 考點(diǎn)集訓(xùn) 03 1. Henry his homework this afternoon. A. have to do B. have to doing C. has to do D. has to doing 2. Jim play soccer with his friend this weekend, because he is very busy. A. can B. cans C. cann’t D. can’t 3. —Can you e to my party? — . A. Sure, I love B. Sure, I love to C. Sure, I’d love to D. Sure, I’d love 考點(diǎn)集訓(xùn) 03 C D C 4. —Would you like to play foot