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3. enough也可以做代词,意思是“足够,充足”。

   e.g. We have enough to do to complete the project.

(二)too…to…

   too+形容词或副词+(for sb.)+to do 表示“太……以至于不能……”,不定式虽然是肯定形式,但与前面的搭配构成了否定的含义。

   e.g. The book is too difficult for you to read.

    She is too short to catch the apples on the tree.

   在too…to结构中,too前面用了never这个词,则动词不定式可以把否定变为肯定。

   e.g. It’s never too old to learn.

(三)修饰性副词。

   根据汉语意思,选择恰当的修饰性副词。

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2. 修饰形容词时,如果用于否定句,则否定句在否定enough的同时,也否定了其后的不定式。

   e.g. He is not careful enough to do the work.

    She is not old enough to go to school.

    enough如果修饰名词,用于否定句时,不定式没有被否定之意。

   e.g. There were not enough people to pick the apples.

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(一)enough

1. enough修饰形容词或副词时必须位于被修饰的词语之后。修饰名词时一般位于其前,也可位于其后。enough后面通常接不定式短语或介词for短语。

   e.g. The question is easy enough.

    Tom didn’t do his homework carefully enough.

    The water is cool enough to drink.

    We have enough tickets for all of you.

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5. Talk about personalities.

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4. Making contrast

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3. Giving reasons

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2. Modifying adverbs

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1. too…to…, not … enough to do

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复习第五单元

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  根据提示词,以“My school life”为题写一篇短文,要求语句通顺,字数80词左右。

  interesting, begin, every day, subject, outdoor activities, playground, borrow

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