如何看出一个句子的主语,如The boy suffering from a strange muscle disease

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/24 02:27:13

如何看出一个句子的主语,如The boy suffering from a strange muscle disease is trying to live a
（连）normal life 中哪个是主语,怎么分辨,能举几个例子吗

拆分法整句看主语是boy ,看完句子你可能感觉是主谓结构,但是其实是主系表结构.原因是suffering 的形式决定不是谓语形式.所以suffering from a strange muscle disease 是修饰限定boy的,boy前面的the 是特指某个的意思,就是特指那个遭受奇怪肌肉疾病的男孩.简化句子是你分清楚主语的关键,整句话简化就是boy is trying to live 后面a normal life 也是修饰live的,你体会下就知道了.例子我手头没有,方法就是简化,看好是主系表还是主谓结构就行,句中有叫你困惑的谓语或者其他结构你分析下就能找到主语了.主语最难找的一般是上下文联系的省略主语的句子,你碰见了多积累就行了,实在不行也别深究,没必要掌握一般的应试绝对够了
再问：为何英语中生病之类的都为主动呢，为什么一定要用ing 不能用ed形式
再答：为何英语中生病之类的都为主动呢，为什么一定要用ing 不能用ed形式？不明白你在问什么，就这个句子用ing形式是因为suffer是个延续性动词表示那个男孩过去到现在一直都在遭受疾病困扰，ed形式就是已经结束了一般是不延续性的动词。这里不能用ed形式。

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