情態助動詞 should 的用法

表示責任、義務(應該,應當)

You should eat less and walk more.

你應該少吃和多走路。

I should have written to her but I haven't had time.

我本應該給她寫信,可是我沒有時間。

表示可能性,有『將』、『會』、『該』的意思

She should be here by now.

她這時候應該到了。

You should find this dictionary helpful.

你會發現這本字典很有用。

should 的否定是 shouldn't

Sandy: You shouldn’t get up so late. "The early bird gets the worm," remember?
Jerry: Yeah, but the early worm gets eaten!

Sandy: 你不應這麼晚起床。「早起的鳥兒有虫吃」,記得嗎?
Jerry: 是喔,可是早起的虫兒被鳥吃啊!

Why shouldn't David buy the iPhone if he can afford it?

如果David買得起iPhone ,他怎麽不買呢?

shouldn't 經常用於why之後,詢問原因。

Grammar



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