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Mr. White lives in a tall building. He lives on the sixteeuth floor. Every day. he takes a lift(电梯) up and down.
One Saturday afternoon, he went shopping with his son and bought many things. They drove back and carried all the things up to the lift. Suddenly they saw a piece of(一张) paper on the wall. It said, “Dear sirs, there’s something wrong with the lift. Please use the stairs(楼梯) now.” The son took a bag and ran upstairs quickly. But Mr. White walked and walked.
At last they stood in frout of their door. They were very tired. Mr. White began to look for the keys, but he could not find them. Suddenly he shouted in a loud voice. “Oh, dear! I’ve left my keys in the car.”
1．Mr. White lives on the ______ floor. ( )| A．14th | B．15th | C．16th |
| A．Yes, he does. | B．No, he doesn’t. | C．I don’t know. |
| A．Yes, they did. | B．No, they didn’t. | C．Yes, they were. |
—Because ______.
| A．they wanted to exercise their body | B．they like walking upstairs | C．there was something wrong with the lift |
| A．At home. | B．In the car. | C．In his bag. |
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
