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At school, we have lots of rules. Rules tell us what to do and what not to do. Rules help us keep safe. We should follow (遵守) the rules at school. We should be quiet in the classroom. Don’t yell or run in the classroom. We should not hit or fight with each other. We should play balls outside on the playground.
At school, the teachers help us follow the rules. Following the rules makes the school a nice place.
1．Rules tell us ______. ( )| A．what to do | B．what not to do | C．A&B |
| A．be quiet | B．run | C．yell |
| A．The rules | B．The schools | C．The teachers |
| A．be quiet | B．follow the rules | C．yell or run |
| A．bad | B．nice | C．easy |
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
