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Today is Sunday. Mrs. Black doesn’t go to work. She is in the park with her children. What are they doing? Look! Jack is skipping. He is very happy. Mark forgets (忘记) to take his kite. He feels bored. Angle is collecting leaves. What about Mrs. Black? She is taking pictures of her children. Oh, it’s 11:40. It’s time to have lunch. Mrs. Black and her children are going back home.
1．Tomorrow is Saturday.2．Mrs. Black and her children are in the park in the morning.
3．Jack feels bored.
4．Mark is flying his kite.
5．The children will have lunch at home.
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
