Verbal
阅读:四道题都是机经
1,第一篇就是美国公司应该用什么指标来平价公司的performance——RIO还是MAKET SHARE
前面的机经已经说得很清楚了,题目让我很疯。
考了两道主旨题,第一道说文章的内容是什么,第二个问作者的写作目的是什么,两道题的选项分成类似,分别有两个时表示如下意思的,一,平价两种指标,并指出他们的适用环境,二,批评一个指标,并推荐另一个……让我很犹豫……
2,第二篇是兰花那道题
就是前两天一个同学贴出来那一篇改写的,再给大家贴出来
Orchids date to time of the dinos
Ancient orchid pollen found attached to a bee trapped in amber suggests the "supermodels of the plant world" were blooming at the time of the dinosaurs.
The discovery indicates that orchids arose between 76 and 84 million years ago, making them far older than experts had previously thought.
Experts used the fossil pollen grains to estimate the ages of major branches of orchids living today.
Details of the research by a team in the US are published in Nature journal.
Despite being the most diverse plant group on Earth, orchids are rare finds in the fossil record.
The authors of the Nature paper describe a mass of orchid pollen found stuck to the body of an extinct bee that lived 15-20 million years ago.
The remains of the bee were trapped and preserved in amber from the Dominican Republic.
Common ancestor
Dating the fossil allowed lead researcher Santiago Ramirez to calibrate a "molecular clock" which uses mutations, or changes, in the plants' DNA to estimate the time of divergence between living organisms.
By building a "family tree" of orchids, the scientists could move back in time to see when the species first appeared, as well as where and how it spread.
They found that the most recent common ancestor of all modern-day orchids lived in the twilight of the dinosaurs, during the Late Cretaceous period.
"It is the first identifiable fossil orchid ever found," Mr Ramirez said.
"And it is the first case in which an insect-orchid interaction has been observed in the fossil record."
The new orchid species, identified from the morphology of the pollen, has been dubbed Meliorchis caribea.
The age of the first orchids has proven a controversial topic. Previous estimates have ranged from 26 to 110 million years ago.
The Orchidaceae family is the largest in the plant kingdom, numbering at least 25,000 species.
By building a "family tree" of orchids, the scientists could move back in time to see when the species first appeared, as well as where and how it spread.
They found that the most recent common ancestor of all modern-day orchids lived in the twilight of the dinosaurs, during the Late Cretaceous period.
"It is the first identifiable fossil orchid ever found," Mr Ramirez said.
"And it is the first case in which an insect-orchid interaction has been observed in the fossil record."
The new orchid species, identified from the morphology of the pollen, has been dubbed Meliorchis caribea.
The age of the first orchids has proven a controversial topic. Previous estimates have ranged from 26 to 110 million years ago.
The Orchidaceae family is the largest in the plant kingdom, numbering at least 25,000 species.
改写后的文章有三段,第一段说新发现的兰花花粉化石也许可以证明兰花的历史比人们想象中长得多,第二段说兰花历史的长短长久以来就是一个争论不休的问题,有些人认为它的历史比较短,是因为什么什么(不难,但是不记得了),认为兰花历史长的人是因为兰花现在分布很广泛,品种非常多样化。第三段说这个兰花的化石也许可以证明…………(不记得了,但是这句话有考题)。然后就是这种兰花花粉化石非常稀有,因为它存在的年代地球的温度和湿度不适合它开花……题目也不难,但是非常绕,有两道题是这样的,一个问说,文章中引用了一些证据,这些证据可以说明兰花的历史非常长,认为这些证据确实可信的人会有如下那个想法;二, 有些人认识兰花的历史很短,并且用什么什么说明,但有些人不同意,并用下面的哪一个反驳?狂晕啊,这两道题都在问一件事,就是觉得兰花历史长的人怎么想…… |