how many gorillas would there have to be in order for the species to be considered safe中的两个to be是什么语法结构,

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how many gorillas would there have to be in order for the species to be considered safe中的两个to be是什么语法结构,

how many gorillas would there have to be in order for the species to be considered safe中的两个to be是什么语法结构,
how many gorillas would there have to be in order for the species to be considered safe
中的两个to be是什么语法结构,

how many gorillas would there have to be in order for the species to be considered safe中的两个to be是什么语法结构,
1.第一个to be.由于使用了动词have,句型there is 就变成了there have to be.
2.第二个to be.是句型for sb.to do sth.如：It is necessary for us to learn English well.只不过你句子中的to do 用了它的被动形式to be done.
翻译：必须有多少大猩猩才能确保这种生物被认为不会绝种（是安全的）.

这个to be是连接了前面的would there have 大致意思是 ”会需要有“
可以理解成：
需要 要有多少个gorillas 它们的species(宗族?)才能算是 属于安全状态

你好。
1 是there to be 结构。 will have to be 是复合谓语结构。
2 in order for the species to be considered safe---------是目的状语结构，翻译是为了让这个物种被认为是安全的/ 不处在危险之中。

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