Grammar Structures for Unit 1 Book IIIModal verbs（情态动词）教师寄语：Just put one foot in front of the other and God will do the rest.may / might, can / could, will / would, shall / should, must / can的用法。1. may 与might的用法情态动词用法例句may与might表示允许、许可。否定答语一般要用mustnt，表示“禁止、阻止”之意。- May I watch TV after supper?- Yes, you may. / No, you mustnt.在表示请求、允许时, might比 may的语气更委婉一些。在日常口语中，用can征询对方意见更为常见。-Might I use your telephone?- Yes, please.- May / Can I go home now?
