作者：Claudia De León 3 年以前
139
Modals
Modals are versatile tools in the English language, used to convey a range of meanings and intentions. They are commonly employed to give advice, such as "should" and "ought to," suggesting an action that is beneficial or recommended.
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Modals to express certainty Kathy will do well on the test. (The speaker feel sure) to express likelihood The teacher told me I would get a better grade in the test. (past prediction) The coach told our team will win the game. (present/future prediction). To express willingness I’ll have breakfast, please. to express prohibition You must not tell anyone my secret. To express logical asumption You must be happy. To express a strong advice You must study to improve your grade. To express obligation All applicants must/have to take the entrance exam. To express ability She can swim. She couldn't swim yesterday (past ability). She is able to swim. To express possibility Why wasn't Marie here. She may/might/could have been sick. (happen in the past) He could/may/might be sick. (50% of possibilities) Sam can't be hungry. (It is imposible) He can arrive on time. (It is possible). To express Lack of necessity We do not need /have to go to class. to give advice I should study for the test. I ought to study for the test to make requests Would you pass me the salt? To express habits He used to be a Boy Scout. State which is not a habit in the present anymore. My father would read me a story before bed time (past habits)
