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流利说 L6-U2 P2 Listening

流利说 L6-U2 P2 Listening

作者: sindy00 | 来源:发表于2020-04-20 08:26 被阅读0次

    Talking about Verbs1


    Now that you're studying English at a high level, you need to be able to talk about the language itself. 

    One of the biggest areas of confusion for students is the difference between the past tense and the present perfect.

    The past tense is indicated by use of the past tense marker, represented here by V sub d.

    Here are some examples of regular verbs and their past tense forms.

    So, as you can see, for regular verbs, the past tense form is indicated by the addition of an -ed at the end of the verb.

    However, some of the most common verbs in English are irregular, so it is important to learn them.

    Here are some examples.

    All together there are over 200 irregular verbs  in normal use.


    Break Defeat


    Many people think that the past tense form only indicates past time. 

    However , that is only one of the possible meanings.

    The past tense form is also use to express something that is unlikely or imaginary, from the speaker's point of view.

    Here is an example:" He wishes he had a car."

    The fact is that he doesn't have a car, so the use of " had " indicates that isn't real: it's imaginary.

    If ha had a car, he could drive us to school.

    Again, " he doesn't have a car, so he can't drive us to school."

    This condition expresses something that isn't a fact.

    it's a counter-factual condition, which means it goes against what we know or believe.


    If that flight left an hour later, instead of at 4 o'clock.


    Look at these two sentences.

    Both sentences are correct, but there is difference in meaning.

    In the top sentence, the condition that she waits is more likely from the speaker's point of view.

    In the  bottom sentence, the speaker thinks it's less likely that she's going to wait.


    Look at these two sentences. If she waits another week, she can save money... If she waited another week, she could save money because there's going to be a sale. Both sentences are correct, but there is a difference in meaning.

    If he had a car, he could drive us to school.

    There was a big sale last week, so we all went shopping.

    if that flight left a few minutes later, we could take the next shuttle bus.


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