'On the Origin of Species' Celebrated and Debated 150 Years Later

1.evolve v.进展,进化,展开

例句:Hygiene has evolved into preventive medicine.
      卫生学已逐步发展成为预防医学。

2.trait n.特色,品质,特性,一笔,少许

例句:Jim's two most pleasing traits are generosity and energy.
      吉姆最讨人喜欢的特徵是豪爽和充满活力。

3.similarity n.相似,相似性

例句:They were drawn to each other by similarity of interests.
      他们因兴趣相似而走到一块。

4.concept n.概念,观念,思想

例句:The most basic concept in accounting is that of the entity.
      会计最基本的概念就是主体。
 
5.endeavor n.努力,尽力,竭力,力图,试图

例句:We make every endeavor to satisfy our customers.
      我们尽全力使顾客满意。

6.bridge vt.架桥于,跨越

7.insight n.洞察力,见识

例句:Good teachers have insight into the problems of students.
      好的教师能洞察学生的问题。

1.Over long periods of time, these small changes result in the creation of new species.

result in导致,引起

例句:Failure of crops often results in famine.
      歉收常引起饥荒。
 
2.The idea that species change was not new even in Darwin's time. The idea dates back to ancient Greece.

date back to始于,可以追溯到…

例句:The castle dates back to the 14th century.
      该城堡建于14世纪。

3.Yet it was the work of naturalist Alfred Russel Wallace that pushed Darwin to finally release his theory.

it强调句型

在英语中,我们常用It is/was… who/that结构来突出强调句子的某一成分(一般是句子中主语,宾语或状语)。在这个句型中,it没有词汇意义,只是引出被强调的成分。如果被强调的成分是表示人的词,用who或that来连接都可以。如果是其它成分,则一律用that来连接。

E.g. It is my mother who/that cooks every day.

E.g. It was yesterday that Tom passed in the maths exam.

二、使用本句型的几个注意事项

1.被强调成分是主语,who/that之后的谓语动词应该在人称和数上与原句中的主语保持一致。

   e.g. It is I who am right.

e.g. It is he who is wrong.

e.g. It is the students who are lovely.

2.即使被强调成分是句子中的时间状语,地点状语,原因状语等,也不能用when,where, because,要用 that。

   E.g.  It was after the war was over that Einstein was able to come back to his research work again .

E.g. It was in front of the bank that the old lady was robbed.

E.g. It was because of the heavy rain that he came late.

3.如果被强调的成分有同位语,同位语也应提前。

It was from him,his chemistry teacher,that Paul learned to watch carefully in class.

4.被强调成分是作主语的代词,用主格,是作宾语的代词,用宾格

It was he that helped me yesterday. It was me that he helped yesterday.

5.被强调部分既包括人又包括物,用that不用who

lt was the things and people that they remembered that they were talking about.