1）whereas是一种正式口语，强调的是转折意义：

He is ill whereas I'm OK.

2）while一般用于普通口语，是一种非正式口语，表对比的意思，其强调的是动作过程的概念。

It's red on the top of the house while it's green underneath .

相关介绍

while的用法

1、当一个男人大笑着把啤酒倒在另一个人头上时，他们都在乐呵呵地看着。

2、The two ministers have yet to meet, but may do so while in New York

两位部长尚未会面，但可能会在纽约碰头。

3、Marianne was tempted to turn the large rooms into traditional French-style salons, while Howard was in favour of a typically English look

whereas的用法

1、Pensions are linked to inflation, whereas they should be linked to the cost of living

养老金与通货膨胀挂钩，然而它们其实应该和生活费用挂钩。

2、Whereas the population of working age increased by 1 million between 1981 and 1986, today it is barely growing.

1981年到1986年间适龄工作人口增长了100万，而现如今该人口数却几乎没有增长。

3、They want a house, whereas we would rather live in a flat.

他们想要一所房子，我们则宁愿住一套房间。