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A crow (乌鸦) wanted to drink some water but can't find any. He looks here and there. Then he cries out, "I can see a jar (罐子)and there is some water in it." He tries but fails to get the water. "How can I?" He thinks it over. " I can put my beak (鸟嘴) quite close to it. but still cannot drink the water. What can I do? I want to drink."
He looks here and there, and then he knows what to do. He picks up a small stone (石头)with his beak and drops it into the jar. "Soon the water will be high and I can drink it," says the crow.
Guess what? The water in the jar turns (变得) to be high enough to drink. The clever crow drinks the water finally.
(1)What is the crow looking for?
A. A jar B. Some water C. Some food
(2)Why can't he drink the water right now? Because
A. the water is in the jar.
B. he doesn't want to drink it.
C. the water isn't high enough for him to drink.
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
