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幼苗
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改否定句有两种最基本的情况:
(1)be动词,直接在其后加not
e.g.I am a student.(肯定句) →I am not a student.(否定句)
He is learning English.(肯定句) → He is not learning English (否定句)
(2)句子中没有be动词,而是实意动词,则借助助动词do/ does构成
e.g.She like reading.(肯定句) → She doesn’t like reading.(否定句)
I eat an apple every day.→ I don’t eat an apple every day.(否定句)
注:doesn’t = does not主语为三人称单数时使用 don’ = do not
1年前
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