Question

英语语法高分求助！！

1)
Supporters and critics of animal testing contimue to trade anecdotes of individual successes and failures, most published studies being so small they lack statistical credibility.
本句逗号后面的most published studies being so small they lack statistical credibility中they lack statistical credibility是什么成分？？？ LACK是动词的话，那么该句子就多谓语动词了啊。实在看不懂呢。

2）It is not necessary to be a placard-waving protestor to harbour doubts about the validity of animal testing.
这句该怎么翻译呢，it is not necessary to do 这个句型该怎么翻译呢？

Answer 1

most published studies being so small 这部分是独立主格结构作原因状语,相当于because most published studies are so small,所以they lack statistical credibility当然是句子了,lack是谓语动词.
it is not necessary to do sth的意思是:做某事不没有必要的.it 是形式主语,不定式to do sth是真正的主语.

Answer 2

其实是SO。。。that 省略了that的
most published studies being so small THAT they lack statistical credibility.
现在知道了吧

没必要做一个公开的抗议者来隐藏对动物实验合法性的怀疑

Answer 3

动物实验的支持者和批评者们继续个人成功和失败的贸易轶事。多数出版研究变得少了，他们缺乏统计信誉。
they lack statistical credibility一个从句，表原因的

成为一个挥舞标牌的示威者怀疑动物实验的有效性是没有必要的。
it is not necessary to do 先翻译后边做……是没有必要的。

Answer 4

1.small后面有个that,他省略了。活体动物实验的支持者和批判者转而继续交易个人成败,而大多公开的研究都太小,以至于缺少数据可靠性.

2.就翻译成 没必要....

我们没必要去做一个招摇的抗议者,去怀疑活体动物实验这一行为的正确性.