1.

Mike: Let’s ________ some pictures here.
Tim: _______ idea!
2.

Mike: What can you see over there?
Tim: I can see a _______ and some _______.
Mike: Can you draw _______ ?
Tim: Sure. It’s ________.
3.

Tim: This is the _______ and _______ are the _______.
Mike: Well done.
4.

Mike: Can you see the ________ on the river?
Tim: Yes.
Mike: Can you _______ it?
Tim: It’s ________ , but I can _______ .
Mike: Is this a boat?

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

