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Jim Green has been in China for 2 years. He has been to many interesting places by high-speed railway. Last week, he went to Shanghai with his family. They booked (订购) tickets on the Internet. Though many people liked travelling by plane, 1. the Greens thought travelling by high-speed railway was safer, cheaper and more convenient.
The cars (车厢) of high-speed railway were clean and tidy.2. 车厢里人不多。The Greens talked with other passengers, read books and saw films on the computer. They watched beautiful views out of the window along the way.
Before lunch, the Greens walked around. 3. Then they went to the dining car to have some delicious food. They bought some drinks and snacks from the steward (乘务员). Jim thought the journey of high-speed railway was like a moving party. He didn’t feel bored at all.
4. 四个小时后，他们抵达了上海。This train ride seemed short, but their memory of this pleasant journey would last (持续) long.
5. High-speed railway has become the first choice of transportation for many people. It is a new symbol of China’s rise as a great power in the world.
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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
