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Alan: I’m OK, but I saw an accident. A boy was riding his bike and listening to music on the road.
Daming: That’s very dangerous.
Alan: I was waiting to cross the road. While the lights were changing to red, a car suddenly appeared round the corner. It wasn’t going fast, but it didn’t stop.
Lingling: Did the boy stop?
Alan: No. And the driver was talking on his mobile phone.
Betty: So, did the car hit the boy?
Alan: No, I’m glad to say. The car stopped just in time, but the boy fell off his bike and hurt his knee.
Tony: That’s too bad.
Alan: So when you’re on your bike, think about the risk of an accident! Pay attention, stop at the red lights and… what else?
Betty: Don’t ride too fast.
Daming: Don’t ride side by side with your friends.
Alan: Anything else?
All: Don’t listen to music!
1．Is Alan ill?
2．When did the accident most probably happen?
3．Was the car driver listening to music or talking on the mobile phone?
4．How many people are talking in the conversation? Who are they?
5．What would you say to your friend when he (she) is on the bike?
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
