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1．根据图片内容选择正确的答句。
(1) Is it the Dragon Boat Festival today?
A. Yes, it is. B. No, it isn’t.
(2) Is it Teachers’ Day today?
A. Yes, it is. B. No, it isn’t.
(3) Is the boy washing the dishes?
A. Yes, he is. B. No, he isn’t
(4) Are there any potatoes in the fridge?
A. Yes, there are. B. No, there aren’t
(5) Where are they?
A. In the bathroom. B. In the kitchen.
2．根据图片任意提出一个问题。
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
