What do people do with their old, out of date but still useful computers? Most people don’t know   61   to do with them. Many old computers are put away in homes. Many more   62   (throw) away as rubbish. 
  Finally, some companies are thinking of ways   63   (bring) down the number of old computers. Sony has agreed to help recycle old Sony products. Dell, Hewlett Packard and other   64  (company) now also take back some old computers. 

In some countries, laws have been passed, too. Computer companies have to pay for collecting and   65   (recycle) their used products. And 70% of computer waste must be recycled. The idea behind the laws   66  (be) that computer companies themselves should pay for the cost. That will encourage them to make computers   67   (easy) to repair and upgrade (升级). 
 Yet while many people are throwing away good computers, others cannot afford   68   at all. Hundreds of organizations are working to solve this problem. They collect and repair old computers. Some also teach others how to repair computers.   69   computers then go to schools, charities (慈善团体) and people who need them. Giving a used computer to one of these organizations can turn one person’s rubbish   70   someone elseˈs useful things and cut down waste, too.
​

__61__ the first day of school, Martha, a teacher, did something that can't __62__ (forget). With the __63__ (permit) of the principal, she took all of the desks out of the classroom. We walked in and found no desks. We asked where they were, only to be told we couldn't have desks until we told her __64__ we earned them. Since nobody could make the right answer, we had the __65__ (one) three periods with no desks. At the last period, Martha gathered us, saying "Throughout the day, no one has really understood how you earn your desks. Now I'm going to tell you. "

    Then she opened the door, and as she did so, 27 veterans (老兵), __66__(wear) their uniforms, walked in, each one carrying __67__ desk. They placed those desks in __68__ (row), and then they stood along the wall.

    Martha said, "You don't have to earn those desks. These guys did it for you. They put them out there for you, but it's up to you to sit here __69__ (responsible) to learn and to be good students and good citizens (公民) because they __70__ (pay) a price for you to have these desks, and don't ever forget it. "

__61__ the first day of school, Martha, a teacher, did something that can't __62__ (forget). With the __63__ (permit) of the principal, she took all of the desks out of the classroom. We walked in and found no desks. We asked where they were, only to be told we couldn't have desks until we told her __64__ we earned them. Since nobody could make the right answer, we had the __65__ (one) three periods with no desks. At the last period, Martha gathered us, saying "Throughout the day, no one has really understood how you earn your desks. Now I'm going to tell you. "

    Then she opened the door, and as she did so, 27 veterans (老兵), __66__(wear) their uniforms, walked in, each one carrying __67__ desk. They placed those desks in __68__ (row), and then they stood along the wall.

    Martha said, "You don't have to earn those desks. These guys did it for you. They put them out there for you, but it's up to you to sit here __69__ (responsible) to learn and to be good students and good citizens (公民) because they __70__ (pay) a price for you to have these desks, and don't ever forget it. "

阅读下列材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

  New books and old ones arrived at the British Museum a hundred years ag0，and more

people 61(come)to read them.The old reading rooms were 62(crowd).The air

was bad and readers got terrible headaches.The librarian，Panizzi，wanted poor students.as

63 as rich men·to be able to learn He got a free copy of every new book for the British

Museum.Soon，there were three rows 64 books on every shelf and hundreds of books on

the floor.Something cheerful happened Panizzi 65(he)designed the famous round

Reading Room，with a beautiful high roof and forty kilometers of 66(bookshelf).Some

of the equipment was unusual Cool air came up through small holes in the tables.Hot air in

tubes under the floor kept readers' feel warm When the new Reading Room opened,there

was a party with drinks 67 a large breakfast on the desks You can imagine 68 won-

derful the new Reading Room is!Since 69 , many famous men have written there.And

the readers can enjoy all kinds of books 70(comfortable)in the new Reading Room.

John Snow was a well--known physician in London in the 19^th century and wanted to help ordinary people  51  (expose) to cholera which was the deadly disease of its day.It was believed that cholera was commonly caused by the bacteria in the air or people absorbed this disease into their bodies with their meals.   52  (suspect) that the second theory was correct, he made further investigations and discovered that it was the water that was   53  (blame). Next, John Snow looked into the source of the water for these two streets  54   all the dead people had lived. Fortunately   55   he found that it came from the river polluted by the dirty water from London, he told the   56  (astonish) people in Broad Street immediately to remove the handle from the pump so that   57   could not be used. In another part of London, supporting evidence from two other   58  (die) that were linked to the Broad Street outbreak was found by him, too.

  59  this extra evidence, John Snow was able to announce with   60  (certain) that polluted water carried the virus. Finally “King Cholera” was defeated.

As an exchange student, Wei Hua studied in a British high school for one year. She was happy 51______ the school hours in Britain because school starts around 9 a.m and ends about 3.30 p.m.

On the first day, all the new students 52______(attend) an assembly in the school hall. Wei Hua sat next to a girl 53______ name was Diana. .During the assembly, the headmaster told the students that the best way to earn respect was to devote themselves 54______ study and achieve high 55______( grade). As there were different students in some classes, 56______was a struggle for Wei Hua to remember all the faces and names. Although the homework was not as heavy as57______ she used to get in her old school, it was a bit 58______(challenge) for her at first because all the homework was in English. Luckily, all her teachers gave her much59______(encourage). To improve her English, Wei Hua used English every day and spent an hour each day60______(read) English books in the library.

In a word, studying in Britain was a very enjoyable and exciting experience for Wei Hua.

One day, Bruce invited his friends to supper. He was cooking some delicious food in the kitchen. Suddenly, he     61     (find) that he had run out of salt. So Bruce called to his son，“Go to the village and buy some salt，but pay a fair price for it: neither too much     62    too little.”

His son looked surprised.  “I can understand why I shouldn’t pay too much, Father, but

    63     I can pay less, why not save a bit of money?”

“That would be a very     64     (reason) thing to do in a big city, but it could destroy a small village like ours,” Bruce said.

Bruce’s guests,     65     had heard their conversation, asked why they should not buy salt more cheaply if they could. Bruce replied，“The only reason     66     a man would sell salt at a lower price would be that he was very eager for money. And anyone who made use     67    this situation would be showing a lack of respect     68     the sweat and struggle of the man who worked very hard to produce it.”

“But such a small thing couldn’t possibly destroy a village.”

“In the beginning, there was only     69     very small amount of unfairness in the world，but everyone added a little，always    70     (think) that it was only small and not very important，and look what the world is like today.”

Great inventions change the way we live ,The first great invention was one that is still very important today—the wheel. This made  36  easy for men to carry heavy things and to travel long distances, for  37 （century）after that,there were few inventions that had as much effect as the wheel.Then in the early 1800’s, the world started to change  38   （great）. In the second half of the 19th century, many great inventions  39  （make）.  Among them were the camera, the electric light and the radio, all of  40  have become a big part of our life today. The first part of the 20th century saw many great inventions,  41  （include）the helicopter, movies with sound and the computer. It was also  42  time when a new world was made. Men began looking for ways to go into space. Russia and the US made the first step,  43  （follow）by Europe and Japan. China has also made great contributions to  44    （explore）outer space these years, but we still have a long way to go. New inventions are being made all the time. Who  45  （know）what the world will be like in the future?