EPISODE · Dec 9, 2022 · 4 MIN
Odie的英语课 930 Grammar | Modals of obligation 10
from Odie的英语课
ought to应该,应当Ought to 和 should 意思非常相近,ought to 比 should 更加正式,should 更常用。Ought 没有任何变形:I ought to phone my parents.我应该给我父母打电话。He ought to phone his parents.他应该给他父母打电话。We ought to eat lots of fruit and vegetables every day.我们应该每天吃很多水果和蔬菜。否定形式是 ought not to / oughtn't to,但是 ought to 的否定形式不常用,通常还是用 shouldn't / should not。比如,你不应该那样跟你父亲说话。You shouldn't speak to your father like that.比说 You oughtn't to speak....要更好。疑问句把 ought 放到主语前面:Ought she to call the police?她应该报警吗?同样,ought to 的疑问句非常正式,所以不常用,通常还是用 should。关于obligation(有必要做某事),我们学了很多表达,不用都记住,最主要知道 must(主观的必须)和 have to(客观的必须),以及相应的否定形式。
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Odie的英语课 930 Grammar | Modals of obligation 10
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