a cat's ability to survive falls is based on fact.句型分析

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/05 11:39:24

a cat's ability to survive falls is based on fact.句型分析
a cat's ability to survive falls is based on fact.句型分析?
1.请问这句句子survive falls分别是什么词性,在句子中作什么成分,拯救下跌,survive 是动词,falls 是名词?
2.该句子包含从句吗?is是谓语动词,a cat's ability is based on fact.这个是句子主干吗?to survive falls是对ability的什么补充?作什么成分?

句意：一只猫的坠落存活能力是以事实为基础的.
这个句子就是个简单句,不包含从句.survive 是动词,falls是名词,意思是在坠落之后存活下来.to survive falls是ability的定语,相当于形容词,就是“……的能力”.
你说的主干是对的.
再问： to survive falls是ability的定语，相当于形容词，就是“……的能力”。
能再解释一下，我怎么判断to survive falls不定时作定语呢？看它跟在名词后面吗？
再答：定语就是用于修饰名词的，如定语从句就是跟在被修饰的名词之后的。不定式to do也是一样。
再问：你好，再问一下，为什么要用to 呢，而不直接说A cat's ability survive falls is based on fact.? ability 是指猫的能力，所有格吗？后面直接跟位于动词survive不可以吗？为什么要用连接词to ?
再答：这句话已经有is based做谓语了。survive falls也就是主语的后置定语，具体说明是什么能力。去掉不定式用原形，这个句子成什么结构了？哪个算谓语？必须是不定式，才是非谓语，作定语用。

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