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Hello, I’m Peter. Look, this is my school. In the classroom, some girls are talking, a boy is asking his teacher a question.
On the playground, some boys are playing soccer, some girls are skipping rope. Some students are sitting under a big tree. Look! Two boys are running. All of them are happy.
1．This is Peter’s _______. ( )| A．home | B．school | C．building |
| A．writing | B．playing | C．talking |
| A．brother | B．mother | C．teacher |
| A．boys | B．girls | C．students |
| A．sad | B．happy | C．worried |
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
