作业帮请各位英语高手帮忙分析一下这个句子,主语谓语是什么,还有动名词不是不可以作谓语么Drinking water containing excessive enamel of teeth to become brittle and to chip off,leaving a stained or mottled effect 这个句
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/02 23:40:28
请各位英语高手帮忙分析一下这个句子,主语谓语是什么,还有动名词不是不可以作谓语么Drinking water containing excessive enamel of teeth to become brittle and to chip off,leaving a stained or mottled effect 这个句
请各位英语高手帮忙分析一下这个句子,主语谓语是什么,还有动名词不是不可以作谓语么
Drinking water containing excessive enamel of teeth to become brittle and to chip off,leaving a stained or mottled effect 这个句子有错么,leaving不是不可以做谓语么,主语是什么?to do 不是也不可以作谓语么?
请各位英语高手帮忙分析一下这个句子,主语谓语是什么,还有动名词不是不可以作谓语么Drinking water containing excessive enamel of teeth to become brittle and to chip off,leaving a stained or mottled effect 这个句
楼上,不定式是可以做主语的 你说错了 !
这个句子是错的,
楼主的句子根本就没抄完整,楼主啊,我是说怎么看不懂（也不知道一楼的怎么改的出来）!这是一个2005年八月的托福题.
原句是：
Drinking water containing excessive amounts of fluorides causes the enamel of teeth to become brittle and to chip off,leaving a stained or mottled effect.
Drinking water 是主语；containing excessive amounts of fluorides 是现在分词做后置定语,修饰water；causes做谓语；enamel of teeth是宾语；to become brittle and to chip off是不定式做宾语补足语,用了平行结构；leaving a stained or mottled effect是现在分词做结果状语
楼上，不定式可做主语，它只是不可以做谓语罢了，不要误人子弟谢谢，个人愚见整个句子无谓语动词....
主语：drinking water
to do为不定式不可作主语
改：Drinking water containing excessive enamel of teeth becomes brittle and chips off,leaving a stained or mottled effect