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Unit 9重要词汇讲解
why
[经典例句]
Why do you like biology? 你为什么喜欢生物?
[启发点拨]
why是疑问副词,意为“为什么”,用于询问原因,答语一般由because引导。如:
—Why does she like koalas? 她为什么喜欢树袋熊?
—Because they are very cute. 因为它们很可爱。
busy
[经典例句]
Today I’m very busy. 今天我很忙。
[启发点拨]
●busy用作形容词,意为“忙碌的;繁忙的”,可作定语修饰名词,也可以作表语,位于系动词之后。如:
What a busy day it is! 好繁忙的一天啊!
Are you busy now, Mom? 妈妈,您现在忙吗?
●与busy有关的常用表达有be busy with sth. 和be busy doing sth.,二者都表示“忙于做某事”之意。如:
Mary is busy with her homework.
= Mary is busy doing her homework. 玛丽正忙着做作业。
any
[经典例句]
Do you have any sisters? 你有姐姐吗?
[启发点拨]
any用作代词,意为“任何一个(一些)”,常用于否定句或疑问句中。如:
There aren’t any chairs in the room. 房间里没有椅子。
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