Lesson 21 Exercise! 课件(共19张PPT)

课件19张PPT。Lesson20 ExerciseNew words:exercise /`eks?saiz/ n. 锻炼
riding /`raidi?/ v. 骑 (ride的进行式)
minute /`minit/ n.分钟
hour /`au?/ n.小时 同音词our我们的Riding a bike is exercise.
骑自行车是锻炼。Walking is exercise.
步行是锻炼这是一个动名词做主语的句子。动名词是非谓语动词的一种。起名词或动词的作用。动名词做主语时，谓语用第三人称单数形式。Playing ping-pong is exercise.
打乒乓球是锻炼。Running is exercise.
跑步是锻炼。
Exercise helps make your body healthy and strong.
锻炼有助于使你的身体健康和强壮。
这句话是一般现在时，主语exercise是不可数名词、所以谓语动词用的是第三人称单数形式；短语“help do sth”。意思是“有助于/帮助做某事”,help 后面跟不定式可以省略to; make在此意思是“使”，后面跟宾语，再跟形容词做宾语的补足语。
Playing sports helps make you strong.
做运动有助于使你强壮。②How many minutes does Danny exercise? 丹尼锻炼多少分钟？1 How often do you exercise, Danny?
你多久锻炼一次丹尼？
I walk to school in the morning, and I walk home aften school.
我早上步行去学校，我放学后步行回家。
2 That's twice a day. How many minutes do you walk?
那就是一天两次。你步行多少分钟？
About five minutes.
大约五分钟。
I think you need about an hour of exercise a day, Danny!
我认为你一天大约需要一个小时的锻炼，丹尼！
Okay! I'm going to watch more sports on TV !
好的！我打算在电视上看更多的运动节目！
No, Danny ! You have to play sports for exercise!
不，丹尼！你必须靠做运动来锻炼！知识点讲解："how many minutes"意为“多少分钟”，用来对时间进行提问。
How many minutes do you +动词原形（swim, run, walk…）（+其他）
How many mintes do you run?
Five minutes.③ Let's do it !Exercise helps make our bodies healthy and strong.
锻炼有助于我们的身体健康又强壮。
I run for 20 minutes every morning.
我每天早上跑20分钟。
Ping-pong is my favourite sport. I play ping-pong three times a week.
打乒乓球是我最喜欢的运动。我一周打三次乒乓球。
That's an hour and a half a week.
那是一周一个半小时。
I play basketball twice a week. That's two hours of exercise a week.
我一周打两次篮球。那是一周两个小时的锻炼。
How man minutes do I exercise a week?
我一周锻炼多少分钟？
Sixty minutes make an hour. I walk for 30 minutes every morning. Basketball is my favourite sport.
I play basketball twice a week. That‘ 40 minutes a week.
I dance five times a week. That's 150 minutes of exercise a week.How much exercise do you need?I need twenty minutes of exercise .How many minutes do you exercise?
______ minutes.How often do you exercise?
_____ times a week.ThreeFifteenLet's chant!Ride a bike, ride a bike,
Riding is exercise.
Walk to school,walk to school
Walking is exercise.
Play ping-pong,play basketball.
Playing sports is exercise. So much for today.