英语翻译By the end of 100 million years,plants had 8 their roots,and some had got tree-like forms since 9 was very important in gaining sunlight 翻译整句.tree-like怎么理解呢?

英语翻译By the end of 100 million years,plants had 8 their roots,and some had got tree-like forms since 9 was very important in gaining sunlight 翻译整句.tree-like怎么理解呢?
英语翻译
By the end of 100 million years,plants had 8 their roots,and
some had got tree-like forms since 9 was very
important in gaining sunlight
翻译整句.tree-like怎么理解呢?

英语翻译By the end of 100 million years,plants had 8 their roots,and some had got tree-like forms since 9 was very important in gaining sunlight 翻译整句.tree-like怎么理解呢?
By the end of 100 million years,plants had 8（evolved) their roots,and
some had got tree-like forms since 9(it) was very
important in gaining
sunlight
这是讲的植物的进化,所需填的两个空按照逻辑意义帮你补全了
在一百万年后,植物已经将其根部进化,一些具有了象数一般的形态,因为它对于获取羊倌非常重要.

一个合成词，意思是“像树一样的”，结合后面的forms（形式，形态）。
整体意思是：
100万年前的尾声，植物已经有了树根，有一些还发展出了像树一样的形态，因为———对植物获取阳光至关重要。
这应该是一个完形填空吧，8和9两处各需要填一个词...

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一个合成词，意思是“像树一样的”，结合后面的forms（形式，形态）。
整体意思是：
100万年前的尾声，植物已经有了树根，有一些还发展出了像树一样的形态，因为———对植物获取阳光至关重要。
这应该是一个完形填空吧，8和9两处各需要填一个词

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年底的100000000年中，有8根，和
一些有树状形式自9很
重要的取得阳光