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My grandpa is more than 80 years old, but he looks like 60. He is very healthy. He often takes a walk in the park. He never loses his way(迷路). But one day, a policeman takes my grandpa home. When the policeman goes away, I ask my grandpa, “What’s going on today?” My grandpa smiles and says, “Nothing. I fly a kite with my friend this afternoon, and I am so tired and I can’t walk back home. So the police officer drive me home. He is so kind(善良)!”
1．My grandpa likes to take a walk in the park.2．My grandpa never loses his way.
3．One day, a policewoman takes my grandpa home.
4．My grandpa is catch(逮捕) by the police.
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
