托福阅读长难句

The column is designed so that a single pollination will fertilize hundreds of thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze.

【子句拆分】

状语从句1： A single pollination will fertilize hundreds of thousands, and in some cases millions, of seeds, so microscopic and light.
状语从句2： They are easily carried by the breeze.
主句：The column is designed.

【成分划分】

连接词： so that
状语从句1： A single pollination[主语] will fertilize[谓语] hundreds of thousands, and in some cases millions, of seeds[宾语], so microscopic and light.[定语]
翻译： 一次授粉能够产生数十万，有时候是上百万的种子，这些种子又小又轻。

连接词： and
并列状语从句2：They[主语] are easily carried[谓语] by the breeze.[状语]
翻译： 微风就能把它们带走。

主句： The column[主语] is designed[谓语].
翻译： 雌蕊柱头（经过）设计。

【全句翻译】

雌蕊柱头的设计使一次授粉能够产生数十万，有时候是上百万的种子，这些种子又小又轻，微风就能把它们带走。

知识点梳理

目的状语从句小结

1. 常见的目的状语从句连接词有： so that, in order that, in case, for fear和 that, 目的状语中常还有情态动词，如， might/may 或者 can/could。
   如：She burned the letters so that her husband would never read them.
   翻译： 她把信都烧了，这样一来她丈夫就永远看不到了。

2. 用 so that 引导： so that 的意思是“以便”。so that 有时可省so 或 that，即单独用 so 或 that 来引导目的状语从句。
   如： We'll sit nearer the front so we can hear better.
   翻译： 我们坐的靠前一点，因此，我们听得清楚一点。

3. 由于目的都是未来的行为，所以从句中一般用表示未来可能性时态。
   如： I prepare some cakes so that they would have something after sports.
   翻译： 我准备了些蛋糕，这些他们在运动完就有东西吃了。