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Last Sunday, we went to Renmin Park for a picnic. It was sunny. We had lunch at about eleven o’clock. The food was very good. But we didn’t have anything to drink. Daming had some money. So she went to buy some drinks. We waited for a long time, but he wasn’t back. Tongtong looked for him. Daming was sitting under the tree. He hurt (伤) his foot, but his injury (伤势) was not serious (严重的).
1．Last Sunday, we went to 318 Park for a picnic.2．It was sunny.
3．The drink was very good.
4．Daming had some drinks.
5．Daming was sitting under the tree. He hurt his foot.
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
