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Many children may be fond of animals, but few ever think of making the study of animals their career(Ö°Òµ).Even fewer will be   1    by the whole world,   2    the title of United Nations Messenger(ʹÕß) of Peace.

But one woman has    3    all that. She has lived with chimpanzees in the African forest for more than 20 years and made great    4   .This woman is Jane Goodall. She was born in London, England, in 1934.Goodall¡¯s lifelong    5    in animals began at an early age. By the age of 10 or 11,Goodall    6    going to Africa to live with animals. This was quite a strange dream in those days, as young    7    didn¡¯t think of having such ¡°wild¡± actions. But she was   8    by her mother. She told her that if she really wanted something, she should work hard, take advantage of   9   and never give up looking for a way.

When a close friend invited Goodall to Kenya in 1957,she readily   10   .Within a few months of her arrival she met the famous anthropologist(ÈËÀàѧ¼Ò) Dr. Louis Leakey, who soon decided that Goodall was the    11    person he was looking for to begin a    12    of wild chimpanzees on the shore of Lake Tanganyika in Tanzania.

In July 1960, Goodall arrived at Gombe National Park in Tanzania. At the beginning, studying the chimpanzees was not    13   for her. The animals fled from her   14   , so it took months for her to get close to them. With a strong   15   , she searched the forest every day, trying not to get too close to the chimpanzees too   16   . Gradually the chimpanzees became used to her presence.

She discovered many things of chimpanzees during her first years at Gombe National Park. In October 1960,she observed a chimpanzee making and using   17    to fish for termites (°×ÒÏ).This discovery threw    18    on the popular idea at the time that Man was the world¡¯s only toolmaker. The longer Goodall¡¯s research continues, the more it becomes obvious that chimpanzees are very   19    to humans.

Since the mid-1980s, Goodall has been lecturing around the world to raise people¡¯s sense about environmental    20   . ¡°Let¡¯s live in the new age with hope, respect for all living things, understanding and love,¡± she said.

1.A. recognized¡¡¡¡  ¡¡¡¡¡¡¡¡¡¡¡¡  B. known¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C. accepted¡¡¡¡¡¡¡¡   D. admitted

2.A.receiving¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   B. giving¡¡¡¡¡¡¡¡¡¡¡¡    C. enjoying¡¡¡¡¡¡¡¡    D. having

3.A.done¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. proved¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C. achieved¡¡¡¡¡¡¡¡    D. realized

4.A.discoveries¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    B. decisions¡¡¡¡¡¡¡¡   C. choices¡¡¡¡¡¡¡¡¡¡¡¡ D. findings

5.A.study¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   B. interest¡¡¡¡¡¡¡¡¡¡¡¡  C. sense¡¡¡¡¡¡¡¡        D. dream

6.A.was fond of ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. tired of¡¡¡¡¡¡¡¡¡¡¡¡  C. insisted on ¡¡¡¡¡¡¡¡¡¡¡¡  D. dreamed of

7.A.boys¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. girls¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C. men¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  D. women

8.A.encouraged¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    B. prevented¡¡¡¡¡¡¡¡  C. advised¡¡¡¡¡¡¡¡¡¡¡¡ D. forced

9.A.knowledge¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. youth¡¡¡¡¡¡¡¡¡¡¡¡    C. hope¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. chances

10.A.accepted¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  B. refused¡¡¡¡¡¡¡¡¡¡¡¡  C. hesitated¡¡¡¡¡¡¡¡    D. considered

11.A.only¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. last¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   C. special¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. first

12.A.project¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. study¡¡¡¡¡¡¡¡¡¡¡¡    C. center¡¡¡¡¡¡¡¡¡¡¡¡   D. career

13.A.hard¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   B. interesting¡¡¡¡¡¡¡¡  C. easy¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  D. convenient

14.A.in surprise¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    B. in a hurry¡¡¡¡¡¡¡¡  C. as expected¡¡¡¡¡¡¡¡¡¡¡¡  D. in fear

15.A.will¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. body¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C. desire¡¡¡¡¡¡¡¡¡¡¡¡    D. mind

16.A.far¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  B. near¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C. soon¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. much

17.A.nets¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. tools¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C. holes¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. spoon

18.A.doubt¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  B. light¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C. questions¡¡¡¡¡¡¡¡   D. beliefs

19.A.close¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   B. similar¡¡¡¡¡¡¡¡¡¡¡¡   C. friendly¡¡¡¡¡¡¡¡¡¡¡¡ D. helpful

20.A.improvement¡¡¡¡¡¡¡¡¡¡¡¡    B. protection¡¡¡¡¡¡¡¡  C. pollution¡¡¡¡¡¡¡¡    D. destruction

 

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¡¡¡¡Tourism probably started in Roman times£®Rich Romans visited friends and family who were working in another part of the Roman empire£®But when the empire broke down, this kind of tourism stopped£®

¡¡I¡¡n the early 17th century, the idea of the ¡°Grand Tour¡± was born£®Rich young English people sailed across the English Channel(Ó¢¼ªÀûº£Ï¿)£®They visited the most beautiful and important European cities of the time, including Paris in France, and Rome and Venice(ÍþÄá˹)in Italy£®Their tours lasted for two to four years, and the tourists stayed a few weeks or months in each city£®The ¡°Grand Tour¡± was an important part of young people¡¯s education£­but only for the rich£®

¡¡¡¡In the 18th century, tourism began to change£®For example, people in the UK started to visit some towns, such as Bath to ¡°take the waters¡±£®They believed that the water there was good for their health£®So large and expensive hotels were built in these towns£®

¡¡¡¡In the 19th century, travel became much more popular and faster£®When the first railways were built in the 1820s, it was easier for people to travel between towns, so they started to go for holidays by the sea£®And some started to have holidays in the countryside as cities became larger, noisier and dirtier£®

¡¡¡¡Traveling by sea also became faster and safer when the first steamships were built£®People began to travel more to far away countries£®

¡¡¡¡The 20th century saw cars become more and more popular among ordinary people£®Planes were made larger, so ticket prices dropped and more people used them£®

¡¡¡¡Thus tourism grew£®In 1949, Russian journalist Vladimir Raitz started a company called Horizon Holidays£®The company organizes everything£­plane tickets, hotel rooms, even food£­and tourists pay for it all before they leave home£®The package tour and modern tourist industry was born£®

¡¡¡¡The first travel agency in China was set up as early as 1949£®But tourism did not take off until 1978£®In 2002, the industry was worth 500 billion yuan and became an important part of China¡¯s social development£®

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Before the 20th century the horse supplied day to day transportation(ÔËÊä) in the USA.

Trains were used for long distance transportation.

Today the car is the most   1   sort of transportation in all of the   2  .It has completely taken the place of the horse as a   3  of  everyday transportation. The Americans use their cars for nearly 90   4   all their   5  .Most Americans are   6   to buy cars. The average(ƽ¾ù)   7   of a car was 2050 in 1950,2740 in 1960 and up to 4750 in 1975. During this period, American carmakers   8   improving their products. As a   9  ,the income of the average family   10   from 1950 to 1970   11   than the price of cars.  12  ,buying a new car takes a smaller part of a family¡¯s   13   income today. In 1951, it   14   8.1 months of an average family¡¯s income to buy a new car. In 1962,a new car   15   6.43 months of a family¡¯s income. By 1975,it   16   took 4.75 months¡¯ income.  17  ,the 1975 cars were technically   18   than those of the previous(ÏÈÇ°µÄ)   19  .

That¡¯s why cars are so   20   in the USA.

1.A.useful¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B.valuable¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C.cheap¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    D.popular

2.A.United States ¡¡¡¡¡¡¡¡ B.world ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.year¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  D.continent

3.A.development¡¡¡¡¡¡¡¡   B.journey¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.sign¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  D.means

4.A.percent¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   B.years¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  ¡¡¡¡   C.miles¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D.dollars

5.A.trips¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   B.lives¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.buissness¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  D.time

6.A.permitted¡¡¡¡¡¡¡¡¡¡¡¡    B.encouraged¡¡¡¡¡¡¡¡¡¡¡¡    C.anxious¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D.able

7.A.value¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  B.cost¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.price¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D.money

8.A.suggested¡¡¡¡¡¡¡¡¡¡¡¡   B.enjoyed ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    C.made up¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    D.started

9.A.tool¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    B.result¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    C.drive¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D.producer

10.A.reduced¡¡¡¡¡¡¡¡¡¡¡¡    B.increased¡¡¡¡ ¡¡¡¡¡¡¡¡¡¡¡¡  C.received¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    D.needed

11.A.more slowly¡¡¡¡¡¡¡¡  B.smaller¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.faster¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    D.less

12.A.However¡¡¡¡¡¡¡¡¡¡¡¡   B.For example¡¡¡¡¡¡¡¡¡¡¡¡   C.Instead¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  D.For this reason

13.A.low¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  B.high¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.monthly¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    D.total

14.A.needs¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   B.took¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.spent¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    D.saved

15.A.spent¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    B.paid¡¡¡¡  ¡¡¡¡¡¡¡¡¡¡¡¡    C.cost¡¡¡¡ ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D.took

16.A.might    ¡¡¡¡¡¡¡¡    B.really    ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.only¡¡¡¡ ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D.would

17.A.Otherwise  ¡¡¡¡¡¡¡¡ B.Besides¡¡¡¡¡¡¡¡¡¡¡¡   C.But¡¡¡¡  ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D.Finally

18.A.improved   ¡¡¡¡¡¡¡¡ B.better¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    C.lighter  ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    D.smaller

19.A.months¡¡¡¡ ¡¡¡¡    B.years    ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.cars¡¡¡¡ ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D.families

20.A.popular    ¡¡¡¡¡¡¡¡  B.expensive¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  C.cheap   ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  D.good

 

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Last evening I was watching the evening news on television. The news was about a prize for scientific  1   ;I forgot what it was. The announcer, whose name was Ralph Story, said something that caught my  2  .¡°All great discoveries,¡±he said,¡°are made by people between the ages of twenty-five and thirty.¡±  3   a little over thirty myself, I wanted to disagree with him.  4   wants to think that he is past the age of making any discovery. The next day I happened to be in the public library and spent several hours looking up the  5  of famous people and their discoveries. Ralph was right.

First I looked at some of the   6   discoveries. One of the earliest discoveries, the famous experiment that proved that bodies of different  7   fall at the same speed, was made by Galileo when he was 26. Madam Curie started her research that  8   to the Nobel Prize when she was 28. Einstein was 26 when he published his world-changing theory of relativity. Well,  9   of that. Yet I  10   if those¡°best years¡±were true in other  11   .

Then how about the field of   12   ? Surely it needs the wisdom of age to make a good leader. Perhaps it  13   ,but look when these people  14   their career. Winston Churchill was elected to the House of Commons at the age of 26. Abraham Lincoln  15   the life of a country lawyer and was elected to government. At what age? Twenty-six.

But why  16   best years some after thirty? After thirty, I  17   ,most people do not want to take risks or try   18   ways. Then I thought of people like Shakespeare and Picasso. The former was writing wonderful works at the ripe age of fifty, while the latter was  19   trying new ways of painting when he was ninety!

Perhaps there is still  20   for me.

1. A. invention¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. discovery

C. experiment¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. progress

2. A. mind¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. idea

C. attention¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    D. thought

3. A. As¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. Being

C. However¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. Beyond

4. A. Everybody¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. Somebody

C. Nobody¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. Whoever

5. A. names¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   B. ages

C. addresses¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   D. oldest

6. A. modern¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  B. scientific

C. last¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    D. oldest

7. A. heights ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. sizes

C. weights¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. things

8. A. led¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  ¡¡¡¡    B. meant

C. stuck¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡      D. referred

9. A. plenty¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   ¡¡¡¡    ¡¡¡¡   B. enough

C. much¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡     D. none

10. A. believed¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ¡¡¡¡    B. trusted

C. wondered¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡      D. asked

11.A. fields¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  ¡¡¡¡    B. countries

C. courses¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡      D. ages

12. A. agriculture¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  ¡¡¡¡    B. politics

C. industry¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡        D. society

13.A. is¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   ¡¡¡¡    B. will

C. has¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡  ¡¡¡¡    D. does

14. A. finished¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡      B. went

C. started¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   ¡¡¡¡      D. failed

15. A. devoted¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡       ¡¡¡¡   B. gave up

C. began¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡       D. led

16. A. don¡¯t¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ¡¡¡¡    B. the

C. can    ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡       D. not

17. A. say¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡       B. know

C. guess¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡        D. agree

18. A. other¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ¡¡¡¡    B. new

C. best¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡      D. their

19.A. always¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡    ¡¡¡¡    B. still

C. seldom¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡      D. enjoying

20. A. discovery¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   ¡¡¡¡    B. problem

C. wish¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡     D. hope

 

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