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Playing ping-pong is exercise.
Skipping is exercise .
拓 展 延 伸：
Swimming is exercise.
Skiing is exercise.
riding a bike brushing your teeth
watching TV combing your hair
running playing ping-pong
eating donuts walking to school
playing cards playing basketball
skipping doing my homework
singing reading the newspaper
drawing pictures playing soccer
What is exercise?
理解展示
minute 分钟
hour 小时
minutes ﹦1 hour
寻 疑 解 疑
—How much exercise do you need？
—You need about twenty minutes of exercise three times a week.
1.How often does Danny exercise？
2.How many minutes does he walk？
3. What does Mr.Wood think about Danny？
4.Does Danny understand?
Twice a day.
Fifty minutes.
He thinks Danny needs to get more exercise
.
No, he doesn’t.