阅读理解。
When you arrive at the Shanghai Expo site, the first thing you will see is a huge red building in the ancient
Chinese dougong (斗拱) architectural (建筑的) style. Built according to the concept of "Oriental Crown", the
China Pavilion (展厅) is the largest national pavilion at the Expo.
Themed "Search of the East", the pavilion is divided into three sections. Footprint of the East on the top
floor shows the change of Chinese cities; a Journey of Wisdom on the second floor, China's four great
inventions-the compass, paper, printing and gunpowder are displayed; and Blossoming (盛开的) City on the
ground floor shows the scenery of future cities.
Take a lift, and you'll be taken to the 8,500-square-meter top floor. There, in a film by Lu Chuan, you'll see
how Chinese cities have changed, especially over the past 30 years. The 10-minute movie is shown in a 600-
seat theater.
The painting Along the River During Qingming Festival, is considered a national treasure. It describes life
in Bianjing, which is today's Kaifeng in Henan province. More than 1,000 years ago, it was the largest city in
the world. Multimedia technology makes more than 1,500 characters of the painting walk and move along a
100-meter-long wall.
Four families are chosen from Zhejiang province to show their daily lives. Films of the families and furniture
from the households are exhibited. At the pavilion, you'll get insight into the daily lives of these families at
different periods. The designers believe these will mirror the great changes Zhejiang has seen since China's
reform and opening-up policy in the late 1970s.
1. Which of the following statements is TRUE according to the article? [ ]
A. Visitors can see the China Pavilion built in a modern style.
B. The theme of the China Pavilion is "Oriental Crown".
C. Visitors can get to the top floor of the China Pavilion by lift.
D. The China Pavilion is designed by famous film director Lu Chuan.
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2. If a visitor wants to enjoy the scenery of future cities, he will go to _____. [ ]
A. the top floor
B. the second floor
C. the ground floor
D. a 600-seat theater
3. The painting Along the River During Qingming Festival in the China Pavilion is attractive and special
because _____. [ ]
A. it shows what life was like in Beijing, the capital of China.
B. it shows the development of Chinese cities.
C. it describes what happened in history.
D. Visitors can see more than 1,500 characters of the painting walking along a 100-meter-long wall with the
help of multimedia technology.
4. What's the main idea of the article? [ ]
A. A brief introduction to the China Pavilion.
B. The theme of the China Pavilion.
C. The films of the China Pavilion.
D. The structure of the China Pavilion.
时（T为交流的周期），原线圈中的电流瞬时值为0.03A．变压器的原、副线圈的匝数比为（ ）
：3