外研版（三起）英语四年级下册《Did you fall off your bike?》PPT课件3
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《Did you fall off your bike?》PPT课件3
动词过去式的变法口诀：
Yesterday，表过去，要用一般过去式；
规则动词加 ed；有 e 直接加上 d；
Talk, talk, talked;
Listen, listen, listened;
Watch, watch, watched;
Phone, phone, phoned.
不规则的特殊记，are 变 were；
am/is 变 was； do/does 变 did。
... ... ...
chant
ed， ed 小尾巴，
动词后面跟着它，
如果动作已发生，
千万不要忘了它。
Listen and think:
1.Who went for a bike ride?
Daming and Sam.
2.Who fell off his bike ?
Sam.
... ... ...
Let's chant:
fall off跌落a变e ，
fell off 就是过去式
fell off his bike
buy 购买花钱去，
买完bought 成过去
bought a watermelon
the watermelon fell off
... ... ...
1.What happened to your head,Daming?
2.Oh, Sam and I went for a bike ride yesterday .
3.And then we were hungry and thirsty.
4.Then Sam fell off his bike!
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