1. ─Many passengers were hurt.
2. You’ll get used to it soon.
3. ─Cycling can help us save energy and it doesn’t cause air pollution.
─骑自行车有助于我们节省能源而且不会造成空气污染。
─I think so./I agree with you.
4. We should wear bicycle helmets when riding.
5. If we ride at night, we should have lights on the bicycle or wear light-colored clothes.
6. If we break the traffic rules, we may get a fine and even be in danger.
如果违反交通规则,我们可能会被罚款,甚至还会有危险。
7. ─Why don't we go to a traffic station to learn more traffic rules?
8. Bicycle riding can make the rider's hearts and lungs strong.