VOA慢速英语:Mapping the Way to a Better Soybean

family科，是物种分类体系中的一个，其他的分别是：

域(Domain),界(Kingdom),门(Phylum),纲(Class),目(Order),科(Family),属(Genus)和种(Species);

有时细分为亚门(Subphylum),总纲(Superclass),亚纲(Subclass),总科(Superfamily),亚科(Subfamily),亚属(Subgenus);

2.It will make it easier to search for what each gene is responsible for.

be responsible for为...负责,形成...的原因

例句：She was only partly responsible for the accident.
      这次事故她只有几分责任。

3. This is fairly unusual for plants, he says, and extremely unusual for animals.

fairly是程度副词：

程度副词用于表示程度，常见的有 fairly, pretty, rather, quite, very, much, too, greatly, almost, nearly, half, highly, awfully, deeply, partly, perfectly, really 等。

程度副词的用法注意点：

(1) 程度副词主要用于修饰形容词和副词，有的还可修饰比较级(如much, rather 等)和最高级(如quite, much, almost 等)：

Houses are much more expensive these days. 如今的房价贵多了。

This is quite [much] the most expensive radio here. 这是这里最贵的收音机。

【注】quite 有时也修饰比较级，但只用于quite better(身体康复)这一表达。

(2) 有的程度副词(如quite, rather, almost等)可修饰动词，但有的(如fairly, pretty, very等)则不能修饰动词：

I quite agree with you. 我完全同意你的意见。(不用fairly, pretty, very)

We rather like the film. 我们很喜欢这部电影。(不用fairly, pretty, very)

(3) 个别的程度副词(主要是quite和rather)还可修饰名词(注意词序)：

It’s quite [rather] a good idea./It’s a quite [rather] good idea. 那可真是个好主意。

若此结构中没有形容词，则 quite 和 rather 则只能放在冠词之前：

It was quite [rather] a success. 那事相当成功。