求分析一句话的语法结构 谢谢Paragraph 3 supports the idea that Gause’s experiments were important because theyhelp establish that competition will remove all but one species from any given ecological niche.中的theyhelp establish tha

求分析一句话的语法结构 谢谢Paragraph 3 supports the idea that Gause’s experiments were important because theyhelp establish that competition will remove all but one species from any given ecological niche.中的theyhelp establish tha
求分析一句话的语法结构 谢谢
Paragraph 3 supports the idea that Gause’s experiments were important because theyhelp establish that competition will remove all but one species from any given ecological niche.
中的
theyhelp establish that competition will remove all but one species from any given ecological niche.
里的THAT 到底指代什么 这句话到底是啥从句 麻烦分析清晰点.有点凌乱.不知道自己卡哪儿了

求分析一句话的语法结构 谢谢Paragraph 3 supports the idea that Gause’s experiments were important because theyhelp establish that competition will remove all but one species from any given ecological niche.中的theyhelp establish tha
they （主语）help （谓语）establish （省to不定式作help的宾语）that （无意义的连词引导宾语从句,和establish一起构成不定式短语作help的宾语）competition will remove all but one species from any given ecological niche（宾语从句）、
卡在这里：
help to do sth = help do sth
如：
It helps （to) improve your English.
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they是主语
help是谓语 后面是 省略to的不定式短语 作宾语
help 是英语中 唯一后面 能跟 动词原形作宾语 的 动词 即 help do sth 帮助做某事
establish 是秃头不定式 后面 是 宾语从句 作不定式的宾语
that是连接词
competition是宾从中 的主语 will remove是宾从中...

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they是主语
help是谓语 后面是 省略to的不定式短语 作宾语
help 是英语中 唯一后面 能跟 动词原形作宾语 的 动词 即 help do sth 帮助做某事
establish 是秃头不定式 后面 是 宾语从句 作不定式的宾语
that是连接词
competition是宾从中 的主语 will remove是宾从中的谓语 all but one species是宾从中的宾语
from any given ecological niche是宾从中的状语.

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