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Hello, everyone! I'm Sarah. I will tell you some things about rules. There are many kinds of rules. Do you know about the class rules? For example, don't be late. Listen to teachers carefully (仔细地). Don't fight with classmates. Study hard. It's very important to know the traffic (交通) rules. For example, don't ride a bicycle in the centre of a street. Stop when the light is red. When the light is green, you can go. Rules are very important in everyday life. It can help you in many places.
1．Are there any kinds of rules?2．Can you be late for class?
3．Can you ride a bicycle in the centre of a street?
4．What will you do when the light is red?
5．What class rules do you know from the passage (短文)? (答两条即可)
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
