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Mrs. Brown’s Old Grandpa
Mrs. Brown’s old grandpa was 80 years old. He lives with Mrs. Brown and her husband. Every morning he went for a walk in the park and came home at twelve for lunch.
But one morning a police car stopped outside Mrs. Brown’s house at twelve o’clock, and two policemen helped her grandpa to get out. One of them said that the poor old man could not find his way home, so they took him home by car. Mrs. Brown thanked the policemen, and they left. “But, Grandpa” she said to him, “You have been going to the park every day for twenty years. How can’t you find the way?”
The old man smiled and said, “I can find the way, I am just tired. I don’t want to walk home.”
1．Mrs. Brown was 80 years old.2．Grandpa got home at 12 o’clock for lunch every day.
3．Grandpa could not find the way home.
4．A policeman took Grandpa home by car.
5．Grandpa has been going to the park for twenty years.
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
