题目内容：

In some places around the world, summer heat can be cruel. But city planners in Dubai, a major city in the Middle Eastern country of the United Arab Emirates (UAE), have come up with their own solution to the summer temperatures, which there can increase to over 113 degrees Fahrenheit. Developers plan to build a 48-million-square-foot indoor building complex called the “Mall of the World”. The complex will be fully enclosed (封闭的) and completely climate-controlled.

This “indoor city” helps to draw visitors to the UAE even during the hot summer months. Sheikh Mohammed bin Rashid A1 Maktoum, the vice president of the UAE, explains, “Tourism is a key driver of economy, and we aim to make the UAE an attractive destination all year long.” Visitors will have access to the indoor city’s hotels, health-care centers, shops, entertainment, and more than 4 miles of enclosed streets. In addition, the developers plan to build the world’s largest indoor theme park. A retractable glass roof will cover the park. The roof will open up in the winter months, when the weather is cooler.

Plans for the mall also include a cultural center, with sections modeled on other cities around the globe. These include a theater district modeled on New  York’s Broadway, a shopping area which is like the popular Oxford Street in London, and a walkway that echoes (模仿) Barcelona’s busy street La Rambla.

Some people worry about the large amount of energy it will take to keep the building cool. Fossil fuels, such as coal, oil, or natural gas, are burnt to produce the electricity needed for air-conditioning. In addition, building the mall of the world won’t be cheap. It is estimated (估计) that the development will cost more than $6.8 billion over the next 10 years. But this isn’t Dubai’s first over-the-top building. It has the tallest building in the world, the biggest flower garden in the world, one of the largest aquariums on the planet, and a human-made island in the shape of a palm tree.

1.What is the purpose of building the “indoor city”?

A. To help develop the tourism.

B. To make local people feel cool.

C. To create a new form of economy.

D. To control the outside temperature.

2.What does the underlined word “retractable” in Paragraph 2 mean?

A. Being able to be recycled.

B. Being attractive to someone.

C. Being too hard to be broken.

D. Being able to be moved backwards.

3.According to the passage, which of the followings is true about the cultural center？

A. It helps people to understand culture shock.

B. It shows people the development of Dubai.

C. It provides chances for people to exchange views.

D. It makes people experience lives of different countries.

4.What may be the result of building the Mall of the World?

A. There will be no materials to be used soon.

B. The building will not be as cool as expected.

C. The environment will be damaged to some degree.

D. Dubai will become a poor country due to the high costs.