情态动词、词语缩略-5.26
情态动词：can，could, may, might, shall, should, will, would, must, ought to, dare, need表示情感、态度#表示礼貌的请求：can /（be able to） //能够must /（have to） //必须should /（ought to） //应该need、dare 既能够做情态动词，也能够做实义动词#情态动词还能够表示推测fail //失败；不及格test //考试best //最好的slowly //缓慢地loud //大声地wet //湿的stay up late //熬夜certainly //当然performance //演出still //仍然really //真实的eavlier //早的had better //最好
must be //对现在进行推测
must have done //对过去进行推测
might as well do.haven't ——have not
aren't —— are not
doesn't —— does not
you're ——you are
shan't —— shall not
won't —— will not
didn't —— did not
when'll —— when will
what've —— waht have
he's —— he is
he's —— he has //现在完成时
wasn't —— was not
can't —— cannot
weren't —— were not
当疑问词做主语时，就不用加助动词，直接照抄后面部分