1. should 助动词：应该
2. would like/should like
（1）两个短语均指“想要…”，与want同义，但would(should)like的语气较want婉转或客气。
（2）would like 可用于各种人称；而should like则主要用于第一人称。例如：
He would（不用should）like to be a doctor. 他希望当大夫。
We would（不用should）like to hear your views about it. 我们想听听你对这个问题的看法。
（3）在疑问句中常用would like,而不用should like。例如：
What would you like for breakfast? 你早饭想吃什么？
（4）这两个短语常常简略为’d like,后面可接名词、代词或动词不定式，不接动名词。例如：
Would you like to leave a message? 你要不要留话？
误：Would you like leaving a message?
（5）在省略回答中，would like to 中的to 不可省略，只省略to后面的词语（但be 除外）。例如：
①—Would you like to join us tonigh?
—Oh, I’d like to (join you),but I have a friend to see off at the station.
②—Would you like to be a singer?
—Yes,I’d like to be (a singer).
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