【秒懂语法】情态动词表推测时的等级排行

一、在肯定句中表推测

把握很大，语气很肯定，用must。should和ought to不如must语气强，但比may强。且should和ought to意为“根据常理看，理应……”

• He must be the person we are looking for, for he is exactly like the one in the picture. 一定是
• He should/ought to be here on time; he started early enough. （根据常理推测）理应按时抵达

把握不是特别大，有犹疑，用may, might或could，其中，could, might比may弱。（might=弱弱地说一句）

• That car may be our taxi!可能是
• That car could/might be our taxi!可能是（但我蛮怀疑的）

二、在否定句中表推测

语气弱时，用should not（按理不会），或may/might not（可能不）；语气强时，用can't或couldn't，表示把握大（can't有斩钉截铁的意味）。

There shouldn't be any difficulty in getting you a passport.按理不难

Don't worry. Your father may not have been hurt in the accident.可能没受伤

You can't be hungry now. You just had a huge hamburger.不可能饿的

三、疑问句中表推测

疑问句中提问只用can和could！！！不要乱用！！！

• There is someone outside. Who can it be? 会是谁
• Could he be serious? 会是认真的吗
• Where can she have put it? 会放在哪了呢

关于情态动词表推测，详细讲解请戳

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