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John and Sarah are at the zoo. They are looking at the animals. The monkey is climbing the tree. It's very funny. The tiger is sleeping. The elephant is drinking water with its trunk. Where are the rabbits? Look! They're playing with each other under the tree. There is a bird singing in the tree. The animals are so cute!
1．John and Sarah are at the ________. ( )| A．park | B．farm | C．zoo |
| A．climbing | B．eating | C．sleeping |
| A．drinking milk | B．drinking water | C．playing with water |
| A．In the tree. | B．At home.  | C．Under the tree. |
| A．singing in the sky | B．flying in the sky | C．singing in the tree |
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
