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Once a young man was traveling on a bike. He went far away. At noon he felt very hungry. He wanted very much to find a restaurant to have a meal there, but he didn’t know where to find one. Just then an old woman was coming. "Maybe she knows," he thought. So he came up to her and asked, “Hey, where is the restaurant?” “Sorry, I don’t know, young man.” The young man went away, then he heard the woman’s voice, "oh, young man, you just lost something.” The young man turned back and asked, “What did I lose?” “You lost your manners(礼节、礼貌). ”
1．The young man traveled on foot one day.2．He wanted to find a restaurant for dinner.
3．He asked the old woman for food.
4．The young man lost something important to communicate(交际) with others.
5．We guess the old woman was a lady with good manners.
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
