Five million people visit Grand Canyon in the US every year. For the purpose of helping project Grand Canyon for your fellow visitors and future generations, please follow the guidelines below.

Camping

To protect the park, camping is allowed only within permitted campgrounds. Permits are required for overnight camping at the North Rim. Advance booking can be received by mail. Please write: Information Center, P. O. Box 129, Grand Canyon, AZ 86023

Fires

Because of the extreme fire danger, campfires are not allowed except at Mather and Desert View campgrounds. Collection of firewood is not allowed either.

Hiking(远足)

Please stay on permitted paths. If you don’t do so, you may destroy desert plants. Pack out what you pack in, so you leave no signs of your visit. It is important to keep in mind that you are in a national park where wildlife exists.

Weather

The weather at Grand Canyon can change very quickly. With so much rock, lightning(闪电)causes a particular danger during sudden summer storms. These storms also frequently bring floods inside valleys, a danger to hikers. Watch the skies and check daily weather reports.

Wildlife

Do not feed park wildlife. There have been a few cases at Grand Canyon National Park where deer were purposely shot because they ate plastic bags that left them sick and weak. Hungry deer can be a danger and have kicked and bitten visitors at Grand Canyon. Some other animals will also beg and bite. For your own safety and the well-being of the animals, please do not feed wildlife, no matter how gentle they may appear.

1. What can you do first if you want to go camping?

A．Know the permitted paths.                B．Book campgrounds in advance.

C．Make sure not to make a fire.              D．Stop at Mather and Desert View.

2. What do the underlined words “pack out what you pack in” in Paragraph 4 probably mean?

A．keep everything out of campgrounds        B．take away everything you bring in

C．carry all the necessary food               D．look after your personal belongings

3. Why were some deer killed on purpose at Grand Canyon?

A．They ate wrong things and became very ill.

B．They were a danger to other gentle animals.

C．They begged food from visitors.

D．They kicked and bit visitors.

4. What is the main purpose of the text?

A．To provide travel information.              B．To report some recent news.

C．To teach tourists hiking skills.               D．To introduce the wildlife.

 

Humankind has tried to improve its standard of living since the very beginning of civili­zation. Back then, as well as today, providing food and security was the basic task for a per­son. However, nowadays the range of required goods has expanded significantly. People feel the need for not only some primary things, such as a piece of bread and a roof over their heads, but also for various facilities and luxuries. Providing humanity with these things is connected to the use of natural resources, which requires energy. In turn, the common sources of energy we use today cause pollution, so economic growth is almost unavoidably as­sociated with environmental damage.
Economic growth is the increase in numbers of goods and services produced over time by an economy, and it is calculated in terms of real Gross Domestic Product (GDP). Before growth is calculated, inflation (通货膨胀)is adjusted in order to take into account its mis­leading effect on the price of goods and services. Economic growth can also be explained as the increase in expected output, which results from an increase in actual output, or total de­mand.
There are certain aspects of economic growth which affect the environment. The first of these is the fact that in order to produce more goods and products, at a faster rate, the con­struction of large industrial plants is required. These plants produce a lot of waste, leading to the pollution of water and the atmosphere, which may cause negative long term health effects to nearby populations of animals, or people. They also lead to global warming.
Industrial manufacturing leads to the constantly increasing energy consumption. The traditional energy sources, which are commonly used nowadays, are considered to be the greatest polluters to the environment. There also exist so-called eco-friendly sources of energy. They are sometimes preferred but replacing the traditional sources with them also requires time, during which people have to make some sacrifices to support these undertak­ings.
In order to produce economically practical energy, a sometimes significant transforma­tion of the natural site is often inevitable. This is expensive and, has harmful effects on the environment. Application of wind energy would block airflows’ natural speed which is the reason for their decrease in strength, after crossing the windmill. Consequently, the pres­sure balance that is brought about by this current will be affected, and it is important to re­member that the environment and weather conditions are directly affected by atmospheric pressure.
For these reasons, bringing about economic growth without any resulting environmental damage, whatsoever, is impossible.
【小题1】What does the passage mainly talk about?

A． Pollution caused by plant construction.

B． Effects of windmills on the environment.

C． Economic growth and human civilization.

D． Economic growth and environmental damage.

【小题2】What does the underlined word “They” in the third paragraph refer to?

A．Goods and products	B．The industrial plants
C． Water and atmosphere	D．Negative health effects

【小题3】According to the passage, the author holds the opinion that ______.

A． economic growth should be calculated in terms of GDP

B． use of natural resources causes no damage to the environment

C． industrial manufacturing may cause damage to the environment

D． a windmill is a perfect way to produce economically practical energy

【小题4】Which of the following shows the structure of the passage?

My interest in Chinese food started years a90, when l was a young reporter for the Washington Post. Our office wasn’t far from Chinatown, where I found some very good Chinese restaurants．

The first time I ever ate Chinese food I loved it. I noticed the fresh taste of the meat and vegetables. When I learned more about the food, I began to understand why it has this special feature.

Many years ago, China had an energy crisis because it lost much of its wood due to over population and poor management of its forests. This loss was very bad for the country, of course, but it turned out to be very good for the food. Wood became very expensive and hard to get，so the Chinese had to either find a substitute for their valuable wood，or learn how to use it better. There weren’t any substitutes so people found ways to economize.

In order to economize in cookin9, they had to use very little wood. So they started cutting their meat and vegetables into small pieces before they put them in the hot oil．That way，the food cooked faster and they saved their fuel. The food prepared in this way kept its fresh flavor一and it's this flavor that attracts people from other countries to the art of Chinese cooking.

1.This text is mainly about________.

A. what caused Chinese food to taste fresh

B. how Chinese food is cooked in the US

C. when the author started to make Chinese food

D. why most foreigners like cooking Chinese food

2.The author mentioned the energy crisis to show________.

A. it is important to protect the forests

B. it is necessary to find substitutes for wood

C. why the Chinese changed their way of cooking

D. what problems a big population is causing China today

3.It can be inferred from the text that before the energy crisis Chinese food________.

A. was cooked in rather large pieces

B. was cooked in water but not oil

C. didn’t taste good

D. didn’t look fresh

 

 

第三节：完形填空（共15小题；每小题1分；满分15分）

阅读下面短文，掌握其大意，然后从31—45各题所给的四个选项中，选出最佳选项，并在答题卷上将该项涂黑。

Creativity is the key to a brighter future, say education and business experts. Here is how schools and parents can encourage this important skill in children.

If Dick Drew had listened to his boss in 1925, we   36   not have a product that we now think of as of great importance: a new type of   37   . Drew worked for the Minnesota Mining Company. At work he developed a kind of material strong enough to hold things together.   38  his boss told him not to think more about the idea. Finally, using his own time, Drew improved the tape, which now is used everywhere by many people. And his   39   company learned from its mistake. Now it encourages people to spend 15 percent of their work time just thinking about and developing new   40  .

Creativity is not something one is just born with, nor is it   41   a character of high intelligence. The fact that a person is highly intelligent does not   42   that he uses it creatively. Creativity is the matter of using the resources one has to produce new ideas that are good for something.   43   , schools have not tried to encourage creativity. With strong attention to test results and the development of reading, writing and mathematical skills, many educators   44  creativity for correct answers. The result is that children can give back information but cannot recognize ways to use it in new   45  . They may know the rules correctly, but they are   46   to use them to work out practical problems.

It is important to give children   47  . From the earliest age, children should be allowed to make decisions and understand their results. Even if it’s choosing between two food items for lunch, parents should let their children decide how to use their time or spend their money, but not help them too much if they make the   48   decision. The child may have a hard time, but that is all right. This is ___49___the most important character of creative people is a very strong  ___50     to find a way out of trouble.

36．A．should            B．might                  C．will         D．must

37．A．machine         B．walkman        C．tape       D．ruler

38．A．But             B．So               C．And        D．Though

39．A．new           B．former            C．own       D．formal

40．A．tapes         B．thought          C．ideas     D．feelings

41．A．usually            B．really             C．possibly      D．necessarily

42．A．mean         B．introduce       C．conclude    D．produce

43．A．Fortunately        B．Unfortunately    C．Anxiously   D．Generally

44．A．give up           B．take up           C．use up        D．keep up

45．A．conditions     B．surroundings     C．situations  D．environments

46．A．sure           B．ready         C．able       D．unable

47．A．choices           B．chances         C．time       D．money

48．A．present          B．hard           C．wrong         D．right

49．A．why            B．how           C．what      D．because

50．A．desire            B．inspire            C．influence    D．attitude

 

Why do some people flush when they drink alcohol? This effect is a common reaction to alcohol among East Asians. It affects about 36 percent of Japanese, Chinese and Koreans.

For many, even a small amount of alcohol can cause unpleasant effects. Most commonly, their face, neck and sometimes their whole body turn red. People might also feel uncomfortable and sick to their stomach. They might experience a burning sensation, increased heart rate, shortness of breath and headaches.

The cause is a genetic difference that they are born with called an ALDH2 deficiency (缺乏). It prevents their bodies from treating alcohol the way other people do. But the effects might be more serious than just a red face. Researchers warn of a link between this condition and an increased risk of cancer of the esophagus (食道) from drinking alcohol.

The more alcohol people with this deficiency drink, the greater their risk is. In Japan and South Korea, for example, many people have the deficiency but still drink heavily. Researchers found that these drinkers develop a form of esophageal cancer six to ten times more often than those without the deficiency.

Esophageal cancer is one of the deadliest cancers. It can be treated when found early, but once it grows the chances of survival drop sharply. The researchers estimate that at least five hundred forty million people have the deficiency, about eight percent of the world’s population.

Philip Brooks is a researcher at the National Institute in the United States. He says it is important to educate people about the link between the alcohol flushing effect and esophageal cancer. He says doctors should ask East Asian patients about their experiences with facial flushing after drinking alcohol. Those with a history of it should be advised to limit their alcohol use. They should also be warned that cigarette smoking works with the alcohol in a way that further increases the risk of esophageal cancer.

1.The underlined word “flush” in Paragraph 1 probably means “_________”.

A．walk unsteadily                         B．turn red in the face

C．appear unpleasant                      D．talk more than usual

2.The second paragraph is mainly about _________.

A．the cause of the effects of alcohol

B．Asians and alcohol

C．the advantages of drinking alcohol

D．unpleasant effects caused by alcohol

3.We can infer from the passage that _________.

A．about 36 percent of Japanese, Chinese and Koreans are heavy drinkers

B．the ALDH2 deficiency may be passed on from generation to generation

C．unpleasant effects occur only when people with this deficiency drink a lot

D．only some East Asians have the ALDH2 deficiency

4.Esophageal cancer is one of the deadliest cancers because _________.

A．it can’t be treated at all

B．it is hard to be discovered early

C．it is hard to cure once it has developed

D．people are usually addicted to alcohol