a. 助动词
i. 助动词 be,do,have
- 不具备词汇意义
- 必须和实意连用,帮助构成时态,语态,语气,否定,疑问等
- Be: am, is, are, was, were, been, being
- Do: does, did
- Have: has, had, having
ii. 助动词也可以做实意动词 分别做是,有,做等意义
b. 情态助动词 表可能,建议,愿望,必要,允许,能力,怀疑等等 can/could, may/might, shall/should, will/would, must, had better, be able to, be going to, ought to, be supposed to, have to, have got to
c. 陈述句的否定 直接加not 注意 am , may 没有缩写形式
d. 一般疑问句
i. 含有be动词或情态动词的提问 , 将be动词或情态动词移到句首
ii. 谓语动词是实意动词提问 根据实体借助助动词 do, does, did ,并提到句首
iii. 特殊疑问句
- 句式: 特殊疑问词+一般疑问句+? 特殊疑问词:who,what,which,when,where,why,how
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