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It is Sunday today. It’s warm and sunny. There are many people in the park. Li Ming’s family is in the park, too. Li Ming is riding a bike. Li Ming's mother is talking with her friends. Li Ming’s father is listening to music. Some old men are doing Tai Chi. Some boys are playing football. Some girls are drawing pictures under the tree. There are some birds in the tree. The birds are singing. There is a dog on the grass. It is running. What a nice day!
1．How’s the weather today?2．What’s Li Ming’s mother doing?
3．Where are the birds?
4．Who is playing football?
5．What’s the dog doing?
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
