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There are many trains in the world. There are trains to carry people and trains to carry animals or carry things. There are fast (快) trains and slow (慢) ones. Some trains go through hills. In big cities (城市), you can find trains under the ground and in the streets. They carry people in and out of the city.
Can a train run over water? Yes, it can. There are many bridges (桥) over the rivers. The trains can easily run over the water. But it is not easy to have bridges over the rivers.
The trains have dinning rooms for people. You may eat something in them on the way if you are hungry. Trains are useful to men, women and children. Many children have toy trains. They can have fun with trains.
1．This text (文章) is about ________. ( )| A．the trains | B．the bridges | C．the cities |
| A．Only under the ground. | B．In the streets. | C．Both under the ground and in the streets. |
| A．streets | B．boats | C．bridges |
| A．to have dinner in | B．to play with | C．to carry things |
| A．Animals like to take trains | B．Some trains can go through hills. | C．Trains can go anywhere. |
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
