我把下面这段英文一个句子一个句子写下来了,方便找出每个句子的语法.就是所有的语法.例如从句啊什么的.

我把下面这段英文一个句子一个句子写下来了,方便找出每个句子的语法.就是所有的语法.例如从句啊什么的.
My favorite example of unexpected utility is dinosaur paleontology.
What could be more useless than studying these extinct giants?Recent work on the mysterious extinction of the dinosaurs has built a credible case that their demise was caused by the impact of an asteroid or comet.
Although this explanation remains controversial among expects in the field ,the inquiry has sparked the realization that a future impact by a near-earth asteroid could kill millions of people ,destroy civilization ,or even drive our species to extinction.
Active research is now focused on this threat and on technological means to avoid it.
It is thus entirely possible that the “useless” study of dinosaurs

My favorite example of unexpected utility is dinosaur paleontology.
我最喜欢的意外的学科例子就是恐龙生物学.
1.unexpected 这里是动词过去式做定语,表示“意外的”.用一个完整的定语从句来表达就是...utility that is unexpected...
What could be more useless than studying these extinct giants?Recent work on the mysterious extinction of the dinosaurs has built a credible case that their demise was caused by the impact of an asteroid or comet.
2.more...than..,.比较级,表示“比...更...”,单音节单词可以直接用比较级,比如clearer,smaller,bigger等；3.has/have done （句子里的"has built"）是现在完成时态,强调已经完成的动作对现在的影响；4.a credible case that...that这里引导了一个同位语从句,that后面整个句子都是解释说明这个"case"的.
Although this explanation remains controversial among expects in the field ,the inquiry has sparked the realization that a future impact by a near-earth asteroid could kill millions of people ,destroy civilization ,or even drive our species to extinction.
尽管这种解释依然在这个领域的学者之间很有争议,这个调查却点亮了一个意识——未来来自近地行星的碰撞可能会杀死数百万人,摧毁文明,或者甚至使得人类灭绝.
5....could kill...这里用could表示假设的情况下,是虚拟语气,意为“可能”.后面的Kill,destroy,or drive...三个动词由or连接表并列.drive...to...表示“导致...发生...”,原文指“导致人类灭绝”
Active research is now focused on this threat and on technological means to avoid it.
积极的研究开始（被）专注于这个威胁和技术手段以便避免它（灭绝）.
6.is focused on 表被动,意为“（被）专注于”.这里的and表示并列.
It is thus entirely possible that the “useless” study of dinosaurs
（这句子没写完吧.）
7.it is ...that...这里it做形式主语,真正的主语是that后面的句子.这里这么用表示强调,也为句子美观.“that the useless study of dinosaurs is thus entirely possible”这样排版显得头重脚轻不好看.
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