题目内容
Land, unlike labor and capital, has a special feature: It is in strictly fixed supply in total. Be??cause of this, we say that its price is demand-determined. In other words, the price of land is determined completely by what families and firms are willing to pay for it. But not all the land is the same. Some land is more valuable than other land. The value of land to a potential user may depend upon the characteristics of the land itself or upon its location.
Consider the potential uses of a piece of land in a suburb of Kansas City, Allan wants to build a clothing store in that place. He estimates that he can earn economic profits of $ 10,000 per year there because of the land’s excellent location. Bella, another person interested in buying the comer, believes that she can earn $ 35,000 in economic profits if she builds a drug store there. Clearly, Bella will be more likely to get the land.
Because location is often the key to profits, ‘landowners are frequently able to squeeze their renters. One of the most popular locations in the Boston area, for example, is Harvard Square. There are dozens of restaurants in and around the square, and most of them are full most of the time. Despite this seeming success, most Harvard Square restaurant owners are not getting rich, because they must pay very high rents for the locations of their restaurants. A large part of the restaurant’s revenues goes to rent the land.
Although the supply of land is generally perfectly fixed, the supply of land in a given use may not be so. As the population of a city grows, housing developers find themselves willing to pay more and more for land. As land becomes more valuable for development, some farmers sell out, and the supply of land that can be used for development increases.
5. What’s the difference between land and other resources?
A. Land’s supply is strictly fixed. B. The prices of other resources are lower.
C. Land can’t be used up. D. Land is more useful.
6. Which of the following can’t determine the price of a piece of land?
A. Its location. B. Its purchasers’ purpose.
C. The total amount of its supply for general use. D. Its features.
7. Which of the following is wrong according to the passage?
A. The price of a piece of land is changeable.
B. The profit of a shop is often determined by its location.
C. Most Harvard Square restaurant owners would be getting rich, if they paid lower rents for the locations of their restaurants.
D. The supply of land for development might fall down.
8. Which of the following can be the best title of the passage?
A. The Use of Land B. The Natural Resources
C. The Land Market D. The Land Development
5-8 ADDC
解析:
5. A 细节题。由第一句it is in strictly fixed supply可知。
6. D 细节题。根据文章第一段最后一句排除A和C；根据第二段的例子比较排除B。
7. D 细节题。由最后一句可知。
8. C 主旨题。由第一段第—句Land，unlike labor and capital, has a special feature及全文对土地价格的讨论可知，答案选C。
The African elephant,the largest land animal remaining on earth,is of great importance to African ecosystem(生态系统).Unlike other animals,the African elephant is to a great extent the builder of its environment.As a big plant-eater,it largely shapes the forest-and-savanna(大草原) surroundings in which it lives,therefore setting the terms of existence for millions of other animals that live in its habitat(栖息地).
It is the elephant’s great desire for food that makes it a disturber of the environment and an important builder of its habitat.In its continuous search for the 300 pounds of plants it must have every day,it kills small trees and underbushes,and pulls branches off big trees.This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas.In these open spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.
Take the rain forests for example.In their natural state,the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor.By pulling down trees and eating plants,elephants make open spaces,allowing new plants to grow on the forest floor.In such situations,the forests become suitable for large hoofed plant-eaters to move around and for small plant-eaters to get their food as well.
What worries scientists now is that the African elephant has become an endangered species.If the elephant disappears,scientists say,many other animals will also disappear from vast areas of forest and savanna,greatly changing and worsening the whole ecosystem.
【小题1】What is the passage mainly about?
| A．Disappearance of African elephants. |
| B．Forests and savannas as habitats for African elephants. |
| C．The effect of African elephants’ search for food. |
| D．The eating habit of African elephants. |
| A．Fixing the time. |
| B．Worsening the state. |
| C．Improving the quality. |
| D．Deciding the conditions. |
| A．They result from the destruction of rain forests. |
| B．They provide food mainly for African elephants. |
| C．They are home to many endangered animals. |
| D．They are attractive to plant-eating animals of different kinds. |
| A．showing the effect and then explaining the causes |
| B．pointing out similarities and differences |
| C．describing the changes in spare order |
| D．giving examples |
Most people in the world like to enjoy nature. Travel is one of the most popular ways. Nowadays modern transportation can take people everywhere. But people who lived before the 1880s probably would not travel very far. They would not have time to travel far from their work. Anyone who travelled 36 would usually walk or ride a horse. But in Germany a man named Karl Benz had an idea that 37 the world in a dramatic way. In 1885, he made 38 . His car had three wheels, 39 most cars today. The car could only go 40 16 kilometres an hour.
At around the same time, the man 41 his first car in Detroit, America is called Henry Ford. Detroit is now still famous all over the world as the centre of American car-making.
Cars were very few and only 42 people could buy them. 43 , in England cars were thought to be 44 at that time, so for a few years someone 45 walk in front of every car 46 a red flag! This was to make sure that the car did not go too fast and hurt 47 .
In the 1910s, Henry Ford had 48 a better kind of car called the Model T Ford and he built a 49 where the cars could be made 50 . In this way the car could be made 51 and the cost was less and more and more people could 52 them. But there was still a problem 53 all the cars were black. That was because it was 54 to produce cars that were all the same color. Now, of course, you can buy cars in all 55 .
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