1.
— What’s in the ________?
— There ________ four ________.
— Are they all big?
— No. One egg is big, ________ are small.
2.
— How many ________ are there?
— Three.
— ________ are they?
— They’re in the _______.
— What can they do?
— They can ________.
3.
— It’s windy today. Where are the children?
— They are in the _________.
— What are they doing?
— They are flying the ________.
— Are they happy?
— ________, they are.
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