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It’s Sports Day. Sam ran 800 metres. He’s tired now. David did the high jump. He was first. Now he’s happy. Jerry did the long jump. But it was difficult. He didn’t do well. He’s sad now. Mr Smith is the judge (裁判). He’s still busy now. He didn’t have breakfast in the morning. Now he’s very hungry. It’s getting hotter and hotter. Mr Smith’s pet dog is having a rest under a big tree. It feels cool. It’s so clever.
1. Sam a. happy
2. David b. tired
3. Jerry c. clever
4. Mr Smith d. sad
5. Dog e. hungry
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
