8A Unit 7 Seasons grammar（共24张PPT）.ppt
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Unit 7 Grammar 1
动词与句子结构
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Children can eat ice cream.
The autumn leaves turns brown.
The snowy season will begin.
不及物动词（vi）
及物动词（vt）
系动词（link-v）
一个陈述句通常由主语与谓语动词开头。我们把谓语动词分为三类：及物动词（vt）、不及物动词（vi）、系动词（link-v）
句子的基本成分是主语（S）、谓语动词（V）和宾语（O）
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The leaves  fall.
The temperature  drops.
The snowy season will begin.

 Intransitive verbs不及物动词（vi）后不接宾语。
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He is eating ice cream.
Farmers harvest crops.
White snow covers the whole earth.

 transitive verbs及物动词（vt）后接宾语，该动词告诉我们主语对宾语做了什么。
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The flowers are beautiful.
Autumn leaves turn brown.
The weather becomes cool.

 linking verbs
 linking verbs 系动词（Link-v）后接形容词或名词短语，连接主语和修饰主语的形容词或名词短语。
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说出下列划线部分是及物动词（vt）、不及物动词（vi）、还是系动词（link-v）
My sister works.
Lucy is reading a book.
My father bought me a mew bike.
The students keep healthy by cycling at weekends.
Where does the boy live?
The fish tastes delicious.
I am a member of the reading club.
 link -v
 link -