123Some Australian Aborigines still live in a similar way to their ancestors ， while others live in cities ， towns and the country in the same way as their fellow Australians
(SB U3)Ⅲ一些澳大利亚土著人依然以同他们祖先相似的方式生活，而其他一些土著人却以同其他澳大利亚人同样的方式生活在城镇和乡村
4 while 用法小结： (1)while 用作连词，意为“只要”，相当于 as long as ，引导条件状语从句
While there is life there is hope
留得青山在，不怕没柴烧
(2)while 可表示对比关系
You like sports while I would rather read
你爱体育运动，而我爱看书
5 (3)while 表示让步，相当于 though 或although
While they are my neighbours ， I do not know them well
尽管他们是我的邻居，我却并不很了解他们
(4)while 引导时间状语从句
需要指出的是主句的谓语动词须用持续性动词
Never get on or off the bus while it is moving
汽车在行驶时不要上下车
We thought there were 35 students in the dining hall, ______ ， in fact, there were 40
while B
whetherC
what D
which7Awhile 用于两种情况的对比，意为“然而”
