The central problem of economics is to satisfy the people's and nation's wants.

The problem we faced with is that our resources, here identified as money are __50__. The only way we can solve the problem is to make choices. After looking at our resources, we must examine our list of __51__ and identify the things we need immediately, those we can postpone, and __52__ we cannot afford. As individuals, we face the central problem involved in economics---deciding how to allocate(分配) our limited resources to provide __53__ with greatest satisfaction of our wants.
    Nations face the same problem. As a country's population __54__, the need for more goods and services grows correspondingly. Resources necessary to production may increase, but there are __55__ enough resources to satisfy the total desires of a nation. Whether the budget meeting is taking place in the family living room, in the conference room of the corporation __56__ of directors, or in the chamber of the House of Representatives in Washington, the basic problem still exists. We need to find __57__ of allocating limited resources in order to satisfy unlimited wants.
    A short time ago, economists divided goods into two categories, free and economic. The former, like air and water, were in __58__ abundance(丰富) that economists had no concern for them. After all, economics is the __59__ of scarcity and what to do about it. Today many of these "free goods" are __60__ very expensive to use. Population has made clean air and water expensive for producers extra cost, and __61__ taxpayers who pay for the government's involvement in cleaning the environment.
    In the 1990s, almost all goods are __62__. Only by effort and money __63__ obtained in the from people wish.

Meeting needs of people and the demands from resource available __64__ the basic activity of production. In trying to meet unlimited wants from limited economic goods, production leads to new problems in economics.
　　

Like many of my generation, I have a weakness for hero worship. At some point, however, we all begin to question our heroes and our need for them. This leads us to ask: What is a hero?

Despite immense differences in cultures, heroes around the world generally share a number of characteristics that instruct and inspire people.

A hero does something worth talking about. A hero has a story of adventure to tell and community who will listen. But a hero goes beyond mere fame.

Heroes serve powers or principles larger than themselves. Like high-voltage transformers, heroes take the energy of higher powers and step it down so that it can be used by ordinary people.

The hero lives a life worthy of imitation. Those who imitate a genuine hero experience life with new depth, enthusiasm, and meaning. A sure test for would-be heroes is what or whom do they serve? What are they willing to live and die for? If the answer or evidence suggests they serve only their own fame, they may be famous persons but not heroes. Madonna and Michael Jackson are famous, but who would claim that their fans find life more abundant?

Heroes are catalysts (催化剂) for change. They have a vision from the mountaintop. They have the skill and the charm to move the masses. They create new possibilities. Without Gandhi, India might still be part of the British Empire. Without Rosa Parks and Martin Luther King, Jr., we might still have segregated (隔离的) buses, restaurants, and parks. It may be possible for large-scale change to occur without leaders with magnetic personalities, but the pace of change would be slow, the vision uncertain, and the committee meetings endless.

1.Although heroes may come from different cultures, they __________.

A．generally possess certain inspiring characteristics

B．probably share some weaknesses of ordinary people

C．are often influenced by previous generations

D．all unknowingly attract a large number of fans

2. According to the passage, heroes are compared to high-voltage transformers in that _______.

A．they have a vision from the mountaintop

B．they have warm feelings and emotions

C．they can serve as concrete examples of noble principles

D．they can make people feel stronger and more confident

3.Madonna and Michael Jackson are not considered heroes because __________.

A．they are popular only among certain groups of people

B．their performances do not improve their fans morally

C．their primary concern is their own financial interests

D．they are not clear about the principles they should follow

4.The author concludes that historical changes would __________.

A．be delayed without leaders with inspiring personal qualities

B．not happen without heroes making the necessary sacrifices

C．take place if there were heroes to lead the people

D．produce leaders with attractive personalities

The USA makes a lot of excuses in an attempt to make war on Iran , however, Its __________ purpose lies in the abundant oil there.

A. logical            B. fundamental            C. accurate        D. commonly

I have no idea of what is in fashion nowadays, so my choice might be quite ??? ____?? .

A. abundant????????????? B. arbitrary????????????? C. considerate????????????? D. aggressive

请阅读下列旅游景点的信息，并按照要求匹配信息。请在答题卡上将对应题号的相应选项字母涂黑。

A．Leigongshan Nature Reserve

Located 15 kilometers east of Kaili, Guizhou Province, Leigongshan is the most fascinating scenic area of the Miaoling Mountains. It gained its reputation as a National Nature Reserve because of its abundance of overlapping(与…重叠) mountain ridges, flourishing verdant plants, valuable and rare animals, and historical war remains.

B．Wuyi Mountain

The Wuyi mountain is situated in the middle of the Wuyi mountain range, The Nine Twist Stream, a meading brook running nine kilometers through the mountain, has been designated as a key national scenic spot. A great many scholars and poets like Zhuxi, Luyou and Xinqiji visited and lectured here. As a result, a valuable cultural heritage has been preserved.

C．Hengshan Mountain (South Mountain)

There are five scared mountains in China, among which Hengshan Mountain in Hunan is

the most famous for its natural scenery. It has 72 peaks and extends 150 kilometers, with 800 miles in circumference. The mountain consists of 72 peaks. It runs 150 kilometers in extend, and possess the reputation of Buddhism(佛教） and Taoist（道教） culture of China.

D．Mountain Tai xkb1

Mountain Tai is the first mountain in the five high mountains. It lies in the middle of Shan dong province.There are four natural remarkable spectacles. They are sunrise, sunset glow, cloudy sea and yellow river. The pines and cypresses on the mountain still stand firmly. Their branches and leaves heap up a lot of snow, which shine brightly under the sunshine.

E. Luoxiao Mountain

Luoxiao Mountain lies on the border between Hunan Province and Jiangxi Province. It is where China's revolution started. High peaks and thick forests contribute to make the mountain quite steep. Luoxiao Mountain is rich in natural resources with a forest coverage rate of 64%. More than 3,800 different plants grow here, including over 30 rare tree species and over 20 rare animals species.

F. Mt.Huangshan

Mt.Huangshan is bound to be one of the most visited tourist destinations in the 21st Century. Old residences, archways, clan temples, ancient bridges and pagodas(宝塔) are abundant. Mt.Huangshan is famous for the uniquely shaped pines, the fantastic rock peaks, the sea of clouds and the hot springs. The mystic clouds drift in and out, changing the scenery from minute to minute.

请阅读下面5个人的特点，然后将他们与想去的旅游景点匹配起来。

1.Peter intends to go to a famous mountain for a holiday. As he is into Chinese classical literature and works, he is sure to consider something like that when he chooses a mountain to visit.

2.Jacky is from Australia. He has never been to a really high mountain before. So he is eager to visit a famous Chinese mountain. Jacky particularly enjoys the beautiful scenery on the top of a mountain in the early morning watching the sun rising.

3.Susan is a university student in LA. She has just got a holiday, but as she is doing a research on how religion or ancient Chinese doctrines（宗教教义） have influenced Chinese people, she will not lose any chance for her research.

4.Smith, a German exchange student, extremely adores Chairman Mao Zedong. He is told that if he visits the mountain he can feel the beginning of Chairman Mao Zedong’s revolutionary cause, otherwise he will feel regretful in his later life if he misses it.

5.George is a photographer from a Canadian journal. He likes to take pictures of remarkable scenery, especially the lightning in a thunder storm and the change of clouds. It is said that he can make it in a well-known mountain.