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求分析一句话的语法结构 谢谢

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/14 12:39:19
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
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.
很高兴为您解答,fightout为您答疑解惑
如果本题有什么不明白可以追问,
再问: 不是 THE competition或者 competitions 呢?有一个朋友说这个是主从。。。我其实也觉得应该是这么理解。。
再答: competition 是抽象名词:如: There is fierce competition between banks. 银行之间有着激烈的竞争。