This pair of wheels help you move fast. Just wear them on your feet. Ready, go! They move as fast as you can run. When fully charged (充满电), they can run for about 30 minutes. Do you want a pair? ……

滑雪靴可以当跑鞋？How fast can you run 100 meters? Think about running the race in ski boots6! Andre Ortolf is 21 and he is from Germany. He can finish it in 17.65 seconds. That’s fast! ……

Fast and smallAcheetah(印度豹) can run 76 kilometers per hour. Asnail(蜗牛) needs 20 hours to go 1 kilometer. ……

姜汁娃娃逃跑记
: Come back here, little ginger man. Ginger Man: Run, run, you can’t catch me; I’m the Ginger Man. (A boy sees him.)Boy: I’ll catch him. Come back here, little ginger man! Ginger Man: Run, run, you can ……

Choose the answer ：1. I was surprised that she could run ____ I could. A. as faster as B. so fast than C. as fast as D. as fast as possible2. Write _____ and try not to make any mistakes ……

, and the rain falls directly on you, Bocci suggests that you should run and hide as fast as possible. ..., as fast as you can – not always, but in general,” Bocci told BBC News. “If you’re really thin ……

who run fast usually have strong leg muscles. 5. Which skills can help us run fast? Circle the right words. 5. Which skills can help us run fast? Circle the right words. Make your feet ……

run fast.u For example, you can control how long each of your steps is, how your feet hit the ground... an important role when you run fast.u For example, you can control how long each of your steps ……

fast. B. How your brain can help you run fast. C. What running can do for your breathing... Usain Bolt run a 100-meter race?1. How fast can Usain Bolt run a 100-meter race?A. 37.57 ……

runs faster than most people ride a bike. Why can some people run fast while others are slow? Muscles... hour. He runs faster than most people ride a bike. Why can some people run fast while others are slow ……

The two-legged robot called Cassie can run 100 meters in 24.73 seconds.  VCGThe two-legged robot called Cassie can run 100 meters in 24.73 seconds.  VCGUsain Bolt holds the world record ……

A: Can you run all the way around the park?B: No problem! It's as easy as pie.As easy as pie: 太容易了！ ……

Come onA: Come on, you can do it!B: Yes, I will run that race. Come on: 来吧（别犹豫了）！ ……

and couldn't run again. We like Liu Xiang because he can run so fast. If he couldn't run, what... of courage (勇气). He made a hard choice. We should respect him for that. Just get fit so you can run ……

人类百米速度极限在哪里？人类百米速度极限在哪里？How fast can humans run? What is the limit of our speed?           PAGE 6How fast can humans run? What is the limit of our speed?       ……