問句 肯定回答 否定回答
Need you…? Yes， I must. No，I needn't
Must you…? /don't have to.
典型例題
1)——Could I borrow your dictionary?
——Yes， of course， you____.
A. might
B. will
C. can
D. should
答案C。could表示委婉的語氣，并不為時(shí)態(tài)。答語中of course，表示肯定的語氣，允許某人做某事時(shí)，用can和may來表達(dá)，不能用could或might復(fù)習(xí)：will 與you連用，用來提出要求或下命令。should與you 連用，用來提出勸告。
2)——Shall I tell John about it?
——No， you ___. I've told him already.
A. needn't
B. wouldn't
C. mustn't
D. shouldn't
答案A。needn't 不必，不用。wouldn't 將不，不會(huì)的。mustn't 禁止、不能。shouldn't不應(yīng)該。本題為不需要，不必的意思，應(yīng)用needn't。
3)——Don't forget to come to my birthday party tomorrow.
——______.
A. I don't
B. I won't
C. I can't
D. I haven't
答案B。will既可當(dāng)作情態(tài)動(dòng)詞，表請(qǐng)求、建議、也可作為實(shí)義動(dòng)詞表“意愿、意志、決心”，本題表示決心，選B。
Need you…? Yes， I must. No，I needn't
Must you…? /don't have to.
典型例題
1)——Could I borrow your dictionary?
——Yes， of course， you____.
A. might
B. will
C. can
D. should
答案C。could表示委婉的語氣，并不為時(shí)態(tài)。答語中of course，表示肯定的語氣，允許某人做某事時(shí)，用can和may來表達(dá)，不能用could或might復(fù)習(xí)：will 與you連用，用來提出要求或下命令。should與you 連用，用來提出勸告。
2)——Shall I tell John about it?
——No， you ___. I've told him already.
A. needn't
B. wouldn't
C. mustn't
D. shouldn't
答案A。needn't 不必，不用。wouldn't 將不，不會(huì)的。mustn't 禁止、不能。shouldn't不應(yīng)該。本題為不需要，不必的意思，應(yīng)用needn't。
3)——Don't forget to come to my birthday party tomorrow.
——______.
A. I don't
B. I won't
C. I can't
D. I haven't
答案B。will既可當(dāng)作情態(tài)動(dòng)詞，表請(qǐng)求、建議、也可作為實(shí)義動(dòng)詞表“意愿、意志、決心”，本題表示決心，選B。