慢速英语:Where Do We Come From?

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短语讲解：

1. Would you like to know where your ancestors came from?

come from 来自某处; 出生于
例句：Where will all this innovation come from?
这些创新来自哪里？

2. At such times, people from groups that were separated earlier came together and had children.

come together 聚会，相见
例句：The parallels seem to come together in the distance. 
平行线在远处看上去似交合在一起。 

3. The scientists say the new method may be important not only for learning about ancestors, but also for health reasons.

not only...but(also) 不但…而且…
例句：I can not only swim but also skate.
我不但会游泳，而且会滑冰。

4. They say that knowing one’s genetic code may show what conditions and sicknesses may be likely to affect a person.

be likely to 可能
例句：Remain at a price or be likely to rise.
停在一个价位上或有可能上升。

5. In turn, those children pass the information on to their children.

in turn 依次;  轮流地; 相应地; 转而
例句：Let us consider each of these points in turn.
那就让我们依次分析一下这几点。