The twentieth century saw greater changes than any century before : changes for the better , changes for the worse ; changes that brought a lot of benefits to human beings , changes that put man in danger . Many things caused the changes , but , in my opinion , the most important was the progress in science .

Scientific research in physics and biology has vastly broadened our views . It has given us a deeper knowledge of the structure of matter and of the universe ; it has brought us a better understanding of the nature of life and of its continuous development . Technology in the application of science has made big advances that have benefited us in nearly every part of life .

The continuation of such activitites in the twenty-first century will result in even greater advantages to human beings : in pure science―a wider and deeper knowledge in all fields of learning ; in applied science―a more reasonable sharing of material benefits , and better protection of the environment .

Sadly , however , there is another side to the picture . The creativity of science has been employed in doing damage to mankind . The application of science and technology to the development and production of weapons of mass destruction has created a real danger to the continued existence of the human race on this planet . We have seen this happen in the case of nuclear weapons . Although their actual use has so far occurred only in the Second World War , the number of nuclear weapons that were produced and made ready for use was so large that if the weapons had actually been used , the result could have been the ruin of the human race , as well as of many kinds of animals .

William Shakespeare said , “ The web of our life is of a mingled yarn(纱线), good and ill together .” The above brief review of the application of only one part of human activities—science seems to prove what Shakespeare said . But does it have to be so ? Must the ill always go together with the good ? Are we biologically programmed for war ?

1. Which of the following best shows the stucture of the passage ?

 

        

        

 

 

（①=Paragraph1 , ②= Paragraph 2，③= Paragraph 3，④= Paragraph 4，⑤= Paragraph 5）

2. From the fourth paragraph , we can infer that __________.

A. a great many nuclear weapons were actually used for war

B. a large number of nuclear weapons should have been used for war

C. the author is doubtful about the ruin of human beings by nuclear weapons

D. the author is anxious about the huge number of unclear weapons on the earth

3. The underlined word “ mingled ” in the last paragraph most probably means__________.

A. simple         B. mixed           C. sad             D. happy

4. What do you think the author is most likely to suggest if he continues to write ?

A. Further application of science to war .

B. More reading of William Shakespeare .

C. Proper use of science in the new century .

D. Effective ways to separate the good from the ill .

 

    Wal-Mart is not just the world's largest retailer （零售商）. It's the world's largest company, which sells in three months what number-two retailer Home Depot sells in a year.

    Wal-Mart exercises its power for just one purpose: to bring the lowest possible prices to its customers. At Wal-Mart, that goal is never reached. The retailer has a clear policy for suppliers: On basic products that don't change, the price Wal-Mart will pay, and will charge shoppers, must drop year after year. But what almost no one outside the world of Wal-Mart and none of its 21,000 suppliers know is the high cost of those low prices. To survive in the face of its pricing demands, makers of everything from bikes to jeans have had to close US plants in favor of obtaining products from abroad.

    Indeed, the real story of Wal-Mart, the story that never gets told, is the story of the pressure the biggest retailer constantly applies to its suppliers in the name of bringing us "every day low prices".

    The giant retailer' s low prices often come with a high cost. Wal-Mart' s pressure can crush the companies it does business with and force them to send jobs overseas. Are we shopping our way straight to the unemployment line? Of course, US companies have been moving jobs offshore for decades, long before Wal-Mart was a retailing power. But there is no question that the chain is helping accelerate the loss of American jobs to low-wage countries such as Thailand.

    People ask, "How can it be bad for things to come into the US cheaply?" Sure, it's great to have bargains. But you can' t buy anything if you' re not employed.

    There is no question that Wal-Mart's drive to squeeze out cost has benefited consumers. By now, it is accepted wisdom that Wal-Mart makes the companies it does business with more efficient and focused. Wal-Mart itself is known for continuous improvement in its ability to handle, move, and track goods. It is legendary （传奇） for forcing its suppliers to redesign everything from their packaging to their computer systems. It is also legendary for quite straightforwardly telling them what it will pay for their goods.

1. How do suppliers meet the requirements of Wal-Mart?

A. To sell even more goods in three months.

B. To cut down the employment rate sharply.

C. To charge shoppers at a much higher price.

D. To run the business in a well-organized way.

2. Wal-Mart's low price policy results in ____.

A. more high-paying jobs

B. better designed packages

C. bigger profit of its partners

D. more jobless American workers

3. What can we infer from the passage?

A. Still more quality goods will be provided.

B. The food you get at Wal-Mart costs least.

C. The value of Mal-Mart is over assessed.

D. Wal-Mart is a very demanding company.

4.What's the best title for the passage?

A. The Fortune Wal-Mart Makes

B. The Wal-Mart you don't Know

C. The Biggest Retailer—Wal-Mart

D. The Money Saving Tip in Wal-Mart

 

 

In the continuous high temperature weather, it is not to fit to gather.

That is      we cancel the discussion

A．Why

B．Because

C．How

D．When

 

There are two kinds of physical activity which require special training. The first demands exact careful movements of the muscles. This kind of activity must be strictly controlled because even a slight movement in the wrong direction will lead a mistake. To type quickly, for example, a person needs training; the slightest movement of a finger in the wrong direction may cause a spelling mistake. A dancer who has to dance on the point of her shoes or turn around on one foot must be trained for a long period of time before she can sense her own center and balance herself. You may have seen a girl walking on a rope across an empty space, which, too, requires a lot of practice.
The second kind of physical activity needs greater strength or extra effort. Most of us get tired if we try to run half a mile without stopping, but a specially-trained person can do this without much effort. Three years ago, some scientists carried out experiments, which produced meaningful and unexpected results. They wanted to find out whether a certain amount of physical exercise would injure those suffering from heart problems. They selected some male patients and trained them in continuous bicycle riding. They were surprised to find that the harmful effect of given amount of physical effort was actually less on the hearts of these trained patients than on those of the patients who were not similarly trained. This is important because it shows that regular physical exercise enables us to make better use of the oxygen we breathe in and that this training, in fact, reduces the amount of work our hearts do. Many tasks which are hard for untrained people are not hard at all for trained people.
【小题1】The first kind of physical activity must be strictly controlled because _________.

A．a mistake in the wrong direction is dangerous to the fingers

B．a wrong movement in a direction will cause no mistakes

C．a movement in the wrong direction will cause a mistake

D．a slight movement of a finger will lead to a mistake

【小题2】What must a dancer do before she can balance herself?

A．She must dance on the point of her shoes.

B．She must receive long-time training.

C．She must turn around on one foot.

D．She must perform again and again.

【小题3】The experiments done by some scientists showed that ________.

A．some male patients were asked to ride bicycles regularly in the experiments

B．the physical exercise had more harmful effect on the hearts of the untrained patients

C．the physical exercise was harmless to the male patients with heart trouble

D．the physical exercise could be helpful for the patients to take in more oxygen

【小题4】What would be the best title for this text?

A．Training Our Bodies	B．Physical Activities
C．Movement Training	D．Extra Body Effort

We must work hard and make _______ continuous progress so that we can make _______great contribution to our country in the future.

A．/ ; a

B．the ; a

C．a ; a

D．/ : /