[填空题]"Homogocene" is the word used by natural scientists to describe the ______ we are living in.

[单项选择]

Science and Scientist

The word science is heard so often in modern times that almost everybody has some notion of its meaning. On the other hand, its definition is difficult for many people. The meaning of the term is confusing, but everyone should understand its meaning and objectives. Just to make the explanation as simple as possible, suppose science is defined as classified knowledge (facts).
Even in the true sciences distinguishing fact from fiction is not always easy. For this reason great care should be taken to distinguish between beliefs and truths. There is no danger as long as a clear difference is made between temporary and proved explanations. For example, hypotheses (假设) and theories are attempts to explain natural phenomena. From these positions the scientist continues to experiment and observe until they are proved or discredited (使不相信). The exact status of any explanation should be clearly labeled to avoid confus
A. the study of unrelated subjects
B. an attempt to explain natural phenomena
C. the study of unrelated fields
D. classified knowledge

[单项选择]When he was alive, the old scientist used to say that knowledge （　）from practice and he gained his experience by doing a lot of practical work.
A. was coming
B. had come
C. comes
D. would come

[填空题]During the 19th century, natural gas was used on a local scale because of the difficult situation in___________.

[单项选择]The word bird used to mean "young bird"; today it means "any kind of bird". This is called ______ in terms of semantic change.
A. broadening B. narrowing C. meaning shift D. class shift

[单项选择]
The word market is used in a number of ways. There is a stock market and an automobile market, a retail market for furniture and a wholesale market for furniture. One person may be going to the market: another may plan to market a product. What, then is a market A market may be defined as a place where buyers and sellers meet, goods or services are offered for sale. and transfers of ownership occur. A market may also be defined as the demand made by a certain group of potential buyers for a good or service. For instance, there is a farm market for petroleum products. The terms market and demand are often used interchangeably; they may also be used jointly as market demand.
These definitions are not sufficiently precise to be useful to us here. For business purposes we define a market as people or organizations with wants (needs) to satisfy, money to spend, and the willingness to spend it. Thus in the market demand for
A. Right
B. Wrong
C. Not mentioned

[单项选择]Which word is not used by Norberg-Hodge to describe the Ladakhi people
A. open
B. happy
C. self-protected
D. humble

[单项选择]

What Is Market

The word market is used in a number of ways. There is a stock market and an automobile market,a retail market for furniture and a wholesale market for furniture. One person may be going to the market:another may plan to market a product. What,then is a market A market may be defined as a place where buyers and sellers meet, goods or services are offered for sale. and transfers of ownership occur. A market may also be defined as the demand made by a certain group of potential buyers for a good or service. For instance,there is a farm market for petroleum products. The terms market and demand are often used interchangeably; they may also be used jointly as market demand.
These definitions are not sufficiently precise to be useful to us here. For business purposes we define a market as people or organizations with wants (needs) to satisfy,money to spend, and the willingness to spend it. Thus in the market demand for
A. Right
B. Wrong
C. Not mentioned

[填空题]