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A man is carrying a very big box. The box is full (装满) of big apples. He wants to put it on the back of his bike and take it home. Can he do that? No, I don’t think so. Why? Because the man is not strong, he is thin. And the box is too full and too heavy, it’ll be hard for him to carry. Oh look! What happens? He drops the box, and the apples are falling. What a poor man! But some people help him pick up (拾起) the apples into the box, and carry it on his bike. The man can take it home now, he’s happy.
1．There are so many apples in the big box.2．The man can carry the box because he’s strong.
3．The man wants to take the apples home by bike.
4．The apples are falling, some people pick up and eat the apples.
5．The man is happy because people help him.
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
