Language points

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1.Future historians will be in a unique position when they come to record the history of our own times.

in a unique position: 处于无以伦比，独一无二的情况

come to: start, begin

2.They will hardly know which facts to select from the great mass of evidence that steadily accumulates. .

背诵句型

select from 从......中进行选择(同类中)

choose挑选（凭个人意愿）

1)有三种情况choose和 select不能互换：

1．当在两者中选一个时只能用choose, 即choose between新概念英语免费下载

Ex

We have to choose between leaving early and paying for taxi.

2．choose可带 wh从句

Ex

I'll let you choose where we should go to eat.

3．choose to do 只能用choose.

Ex

What invariably happens is that a great number of things choose to go wrong at precisely the same moment.（L33 ）

He has deliberately chosen to lead the life he leads and is fully aware of the consequences. (L27)

2)select比choose更正式， 即在许多同类的人或物当中根据客观标准对这两个加以比较，鉴别，认真地挑选出最好的、最喜欢的、最有用的。

Ex

She selected a dictionary from the library.