英语情态动词用法中的题目-I'm afraid I'll be too busy to go with you.-Well,I'll keep a seat for you in case you( )change your mind.答案是填should表意愿,为什么不能用will.

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英语情态动词用法中的题目-I'm afraid I'll be too busy to go with you.-Well,I'll keep a seat for you in case you( )change your mind.答案是填should表意愿,为什么不能用will.

英语情态动词用法中的题目-I'm afraid I'll be too busy to go with you.-Well,I'll keep a seat for you in case you( )change your mind.答案是填should表意愿,为什么不能用will.
英语情态动词用法中的题目
-I'm afraid I'll be too busy to go with you.
-Well,I'll keep a seat for you in case you( )change your mind.
答案是填should表意愿,为什么不能用will.

英语情态动词用法中的题目-I'm afraid I'll be too busy to go with you.-Well,I'll keep a seat for you in case you( )change your mind.答案是填should表意愿,为什么不能用will.
in case 万一,以防.后接虚拟语气,用should,will 不能这样用.

will意思为“将要”
should的意思如下:
■表示“应该,应当”
He should work harder. 他应该更加努力。
You should help your mother with the housework. 你应该帮你母亲做家务。
Crime should be punished. 犯罪应受惩罚。
Should I wear ...

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will意思为“将要”
should的意思如下:
■表示“应该,应当”
He should work harder. 他应该更加努力。
You should help your mother with the housework. 你应该帮你母亲做家务。
Crime should be punished. 犯罪应受惩罚。
Should I wear a coat?我要穿大衣吗?
■表示“可能,该(=will probably) ”
He should arrive soon他可能很快就到了。
The train should have already left. 火车大概已经走了。
■表示“万一”
If it should rain tomorrow, don’t expect me. 万一明天下雨,就不要等我了。
■表示“竟然”
It’s strange that he should be late. 真奇怪,他竟会迟到。
■表示粗暴地拒绝一项建议、要求或指示
—What time does the film start? 电影什么时候开始?
—How should I know? 我怎么知道?
—Ann’s very unhappy. 安非常不高兴。
—Why should I care? 这管我什么事?
—Could your wife help us in the office tomorrow? 你妻子明天能到办公室来帮帮我们吗?
—Why should she? She doesn’t work for you. 她为什么就该去? 她又不是为你们工作的。
■should加完成式:should have done表示“本应该做某事,但事实上却没有做”;shouldn’t have done表示“本不该做某事,但事实上却做了”。如:
You should have got up earlier. 你本应该早点起的。
You shouldn’t have told him about it. 你本不该把这件事告诉他的。

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