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safety n.安全，平安
Let’s learn more.
truck n.
Drivers do not always notice bicycles.
notice n. 注意，理会；v.看到，注意到
Bicycle riders should have lights in the front and reflectors on the back of their bicycles.
reflector n.
in case of 如果，假使
In case of an accident, they should know how to give first aid.
injury n. (对躯体的)伤害，损伤
If the injury is serious, they must call 120 for help.
in a word 总之
=in short
In a word, the best way to be safe is to be careful.
1b
Read 1a and match the topic sentence with each paragraph. Then write a title for the passage in the box above.
Paragraph 1
Paragraph 2
Paragraph 3
Bicycle riding is good for health and the environment.
Bicycle riders must obey the safety rules.
Bicycles are very popular.
While-reading
Reading skills:
Skimming ( read it fast) the passage can help us find the topic of each paragraph.
Bicycles\ The bicycle
1c
Read again and answer the following questions.
1. What do people use bicycles for?
2. Why is bicycle riding good exercise?