The Huangpu River is a must-see for most tourists. You enjoy the “museum of international【小题1】on the Bund” and the skyline of Lujiazui in Pudong. You can have a close look at the famous Shanghai Oriental TV Tower and the magnificent Jinmao Building. You can also see videos, sing songs or watch wonderful 【小题2】on the boat. Tea and coffee are【小题3】during the trip. The tour guide will tell you something about Shanghai’s today and yesterday both in Chinese and in English. We 【小题4】there different boat tours along the river everyday. You are sure to have a good time.

After nearly five years of construction (建设), the Beijing Daxing International Airport officially (正式地) o【小题1】 on Sep. 25. Seated in the southeast p【小题2】 of Beijing. it is the world's l【小题3】 integrated(综合性的) transportation hub(枢纽). The Guardian listed it as one of the "seven wonders of the modern world".

The airport’s size and traveler capacity(承载量) are b【小题4】 quite large. It has the world’s largest flight terminal(航站楼)in a single building. The building has an a【小题5】 of 700, 000 square meters —the size of 98 soccer f【小题6】. In the future, it will be able to handle more than 100 million passengers a year, China Daily reported.

Apart from its size, the airport is also getting attention for its use of new technologies that m【小题7】 it smarter and more efficient(有效率的).

For e【小题8】, the airport will use a robot-operated（机器人操作的）parking system. After drivers park their cars, robots will lift the cars and c【小题9】 them to an open parking space. When collecting their cars, drivers can use their parking tickets to get information on where to f【小题10】 their cars.

Have you ever visited Longmen Grottoes（龙门石窟）or Yungang Grottoes? Around 1, 800 years ago, Chinese artists 【小题1】（create）grotto statues（雕像）in mountains. Over the years, these statues have been through earthquakes, floods and wars. Now 【小题2】 the 21st century, however, they are facing much 【小题3】（big）problems. Too many tourists go to visit those grottoes every year and this 【小题4】（certain）does harm to the grotto statues. Do you know how?

According to a study, the CO₂ that visitors breathe out has made the air more acidic（酸性的）. Also, visitors bring in microorganisms（微生物）. Because of these, the grotto statues are in a 【小题5】（danger）situation.

Behaving（表现）badly can cause harm to the grotto statues as well. Too many visitors touch the grotto statues and cause 【小题6】（they）surfaces to change color.

When we visit the grottoes, we can often see a sign saying, “No Flash（闪光灯）!” or “No Photos!”. This is 【小题7】 the strong light can be bad for the statues, especially those with color. The light can make it easy for them to lose their color.

【小题8】（protect）those ancient cultural treasures, recently China has asked the workers who take care of those grottoes to control 【小题9】 number of visitors. And tourists are encouraged to book（预定）【小题10】（ticket）on the Internet and stay away from busy hours when visiting.