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例如：Lily go to school every day. go-goes.
Do You Have a Soccer Ball?
Frank Brown:
I don’t have a soccer ball, and my brother Alan does.
We go to the same schools and we love soccer.
We play it at school with our friends. It’s relaxed.
After play soccer we go home.
Gina Smith:
Yes, I do. I have two soccer balls, three volleyball,
four basketballs and five baseballs and bats. Me love sports,
but I don’t play them—I only watch it on TV.
Wang Wei:
No, I doesn’t. Soccer is difficult. I like ping-pong.
It’s easy for me. I have an ping-pong ball and two
ping-pong bats. After class, I plays ping-pong with my classmates.
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
