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九年级上册英语《Unit 4 Growing up Grammar_ Using before, after, when and while & Using since, till and until ＆ Using as soon as and whenever 》获奖说课课件ppt
e.g. I can read books whenever I want to.
the moment 一…就…
More about basketball
Simon is writing about David’s love for basketball. Help Simon complete his sentences with as soon as or whenever.
David often goes to play basketball
_______________ school is over.
2. He watches the NBA ____________
there is a game on TV.
as soon as
whenever
3. ________________ he talks about
basketball, he gets excited.
4. ________________ he learnt that the
NBA players would come to China, he
tried his best to get a ticket.
Whenever
As soon as
一、before, after, when, while, till, until, as soon as, whenever引导的时间状语从句中，如果主从句都指将来发生的动作，主句用一般将来时，从句用一般现在时。
e.g. She won’t go home until she
finishes her work.
二、since+过去式（自从……），常与主句为现在完成时连用。
e.g. John has worked in this factory
since 1998.
三、while（当……时）引导的时间状语
从句通常要用进行时。