B
It is natural that children are curious about the world around them. For example, they want to know how their hearts beat. They want to know why the ocean water tastes salty.
　　As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their mothers. They become interested in the physical world around them: the plants, the animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、职业) in science.
　　Scientists spend their lives trying to find out about the world．Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry .
　　These scientists have already discovered a lot about our world．For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.
　　Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty” scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.
　　We know a lot about our world, but there are still many answers that we do not have, and we are curious.
45．According to the passage, which of the following statements is true?
　  A．People are curious in the same way.
　  B．People in different countries are interested in different things.
　  C．Men and women are curious about different things.
　  D．People of different ages are interested in different things
46．Scientists who work with the biological sciences study____.
A．the earth , the oceans and the sky          B．man-made things
C．plants and animals                               D．ocean water
47．When you run, your muscles need ____.
A．more nutrition and oxygen    B．more signals    C．more salt   D．water
48．A rock cracks _____.
A．in wet regions                                     B．in dry regions
C．at very high or very low temperatures               D．when salty water falls in

Taking good notes is a time-saving skill that will help you to become

a better student in several ways 1.Second, your notes are excellent materials to refer to when you are studying for a test. Third, note-taking offers variety to your study time and helps you to hold your interest.

　　You will want to take notes during classroom discussions and while

reading a textbook or doing research for a report. 2.Whenever or however you take notes, keep in mind that note-taking is a selective process . 3.

　　The following methods may work best for you.

　　●Read the text quickly to find the main facts and ideas in it.

　　●Carefully read the text and watch for words that can show main points  and supporting facts.

　　● Write your notes in your own words.

　　 ●4.

　　 ● Note any questions or ideas you may have about what was said or written.

　　As you take notes, you may want to use your own shorthand(速记). When you do, be sure that you understand your symbols and that you use them

all the time. 5.

A. Use words, not complete sentences.

B. There are three practical note-taking methods.

C. You must write your notes on separate paper.

D. Otherwise, you may not be able to read your notes later.

E. you will also want to develop your own method for taking notes.

F. That means you must first decide what is important enough to include  in your notes. 

G. First, the simple act of writing something down makes it easier for you to understand and remember it.

第二节（共5小题；每小题2分，满分10分）

　　根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

　　Are you truly hapy? Do you ever know what it means to be happy and what it takes to achieve happiness? 71 The following are a few tips that I follow to create happiness in my life.

　　*Make a plan for attaining goals that you lelieve will make you happy.Your moods will very likely increase if you are going after something you value.

　　*Surround yourself with happy people.It is easy to begin to think negatively(消极地) when you are surrounde by people who think that way. 72

　　*When something goes wrong,try to figure out a solution instead of being absorbed in self pity. Truly happy people don't allow setbacks to affect their mood because they know that with a little thought they can turn the circumstances back to their favor.

　　* 73 There few minutes will give you tthe opportunity to focus on the positive things in your life and will lead you to continuous happiness.

　　* 74 Whether you treat yourself to lunch,take a long,relaxing bath or simply spend a few extra minutes on your appearance ,you will be subconsiciously(下意识地) putting yourself in a better mood.

　　*Finding the humor in situations can also lead to happiness. Find way to make light of a situation that would otherwise make you happy.

　　*Keeping healthy is another way to achieve happiness. 75

E.Spend a few minutes each day thinking about the things that make you happy.

F.There are some tips in life that lead to happiness.

G.It's also important to take some time each day to do something nice for yourself.

No country in the world has more daily newspapers than the USA. There are almost 2,000 of them, as compared with 180 in Japan, 164 in Argentina and 111 in Britain. The quality of some American papers is extremely high and their views are quoted all over the world. Famous dailies like the Washington Post or the New York Times have a powerful influence all over the country. However, they are not national newspapers in the sense that The Times is in Britain or Le Monde is in France, since each American city has its own daily newspaper. The best of these present detailed description of national and international news, but many tend to limit themselves to state or city news.

　Like the press in most other countries, American newspapers range from the “sensational” which feature crime and gossip(闲谈), to the “serious”, which focus on factual news and the analysis of world events. But with few exceptions, American newspapers try to entertain as well as give information, for they have to compete with the attraction of television.

 Just as American newspapers satisfy all tastes, so do they also try to attract readers of all political parties. A few newspapers support extremist(极端主义的) groups on the far right and on the far left, but most daily newspapers try to attract middle-of-the-road Americans who are moderate(中立的). Many of these papers print columns by well-known journalists of different political and social views, in order to present a balanced picture.

As in other countries, American newspapers can be either responsible or irresponsible, but it is generally accepted that the American press serves its country well and that it has more than once courageously exposed political scandals(丑闻) or crimes, for instance, the Watergate Affair(水门事件). The Newspapers drew the attention of the public to the horrors of the Vietnam War.

There are fewer national newspapers in          .

　　A. Britain than in the USA.    B. France than in Britain

　　C. the USA than in Britain or France

　　D. France than in the USA or Britain

Most American newspapers try hard to entertain their readers because

                   .　　

       A. they have to keep up a good relation with them

　　B. they have to compete with television

　　C. they have to write about crime and gossip

　　D. they have to give factual news in an interesting way

Many American newspapers attract readers of different political preference by          .

　　A. supporting extremist groups from time to time

　　B. inviting middle-of-the-road Americans to write articles for them

　　C. avoiding carrying articles about extremists

　　D. printing articles representing different political viewpoints

The passage is mainly about             .

　　A. the characteristics of American newspapers

　　B. the development of American newspapers

　　C. the functions of American newspapers

　　D. the advantages and disadvantages of American newspapers

No country in the world has more daily newspapers than the USA. There are almost 2,000 of them, as compared with 180 in Japan, 164 in Argentina and 111 in Britain. The quality of some American papers is extremely high and their views are quoted all over the world. Famous dailies like the Washington Post or the New York Times have a powerful influence all over the country. However, they are not national newspapers in the sense that The Times is in Britain or Le Monde is in France, since each American city has its own daily newspaper. The best of these present detailed description of national and international news, but many tend to limit themselves to state or city news.

　Like the press in most other countries, American newspapers range from the “sensational” which feature crime and gossip(闲谈), to the “serious”, which focus on factual news and the analysis of world events. But with few exceptions, American newspapers try to entertain as well as give information, for they have to compete with the attraction of television.

Just as American newspapers satisfy all tastes, so do they also try to attract readers of all political parties. A few newspapers support extremist(极端主义的) groups on the far right and on the far left, but most daily newspapers try to attract middle-of-the-road Americans who are moderate(中立的). Many of these papers print columns by well-known journalists of different political and social views, in order to present a balanced picture.

As in other countries, American newspapers can be either responsible or irresponsible, but it is generally accepted that the American press serves its country well and that it has more than once courageously exposed political scandals(丑闻) or crimes, for instance, the Watergate Affair(水门事件). The Newspapers drew the attention of the public to the horrors of the Vietnam War.

1.There are fewer national newspapers in          .

　　A. Britain than in the USA.    B. France than in Britain

　　C. the USA than in Britain or France

　　D. France than in the USA or Britain

2.Most American newspapers try hard to entertain their readers because

.　　

3.Many American newspapers attract readers of different political preference by          .

4.The passage is mainly about             .