Zachariah Fike has an unusual hobby. He finds old military（军队的）medals for sale in antique stores and on the Internet.But unlike most collectors, Zac tracks down the medals’ rightful owners, and returns them.

His effort to reunite families with lost medals began with a Christmas gift from his mother, a Purple Heart with the name Corrado A. G. Piccoli, found in an antique shop. Zac knows the meaning of a Purple Heart-he earned one himself in a war as a soldier. So when his mother gave him the medal, he knew right away what he had to do.

Through the Internet, Zac tracked down Corrado’s sister Adeline Rockko. But when he finally reached her, the woman flooded him with questions: "Who are you？What antique shop？" However, when she hung up, she regretted the way she had handled the call. So she called Zac back and apologized. Soon she drove to meet Zac in Watertown, N.Y. "At that point, I knew she meant business, " Zac says. "To drive eight hours to come to see me."

The Piccolis grew up the children of Italian immigrants in Watertown. Corrado, a translator for the Army during WWII, was killed in action in Europe.

Before hearing from Zac, Adeline hadn’t realized the medal was missing. Like many military medals, the one Zac’s mother had found was a family treasure." This medal was very precious to my parents. Only on special occasions（场合）would they take it out and let us hold it in our hands," Adeline says.

As a child, Adeline couldn't understand why the medal was so significant. “But as I grew older,” Adeline says, "and missed my brother more and more, I realized that was the only thing we had left." Corrado Piccoli’s Purple Heart medal now hangs at the Italian American Civic Association in Watertown.

Zac recently returned another lost medal to a family in Alabama. Since he first reunited Corrado’s medal, Zac says his record is now 5 for 5.

21.Where did Zac get a Purple Heart medal for himself？

A. In the army.

B. In an antique shop.

C. From his mother.

D. From Adeline Rockko.

22.What did Zac realize when Adeline drove to meet him？

A. She was very impolite.

B. She was serious about the medal.

C. She suspected his honesty.

D. She came from a wealthy family.

23. What made Adeline treasure the Purple Heart?

A. Her parents’ advice.

B. Her knowledge of antiques.

C. Her childhood dream.

D. Her memory of her brother.

Money with no strings attached. It’s not something you see every day. But at Union Station in Los Angeles last month, a board went up with dollar bills attached to it with pins and a sign that read, "Give What You Can, Take What You Need."

People quickly caught on. And while many took dollars, many others pinned their own cash to the board. “People of all ages, races, and socio-economic（社会经济的）backgrounds gave and took, ”said Tyler Bridges of The Toolbox, which created the project. "We even had a bride in her wedding dress come up to the board and take a few dollars." Most of the bills on the board were singles, but a few people left fives, tens and even twenties. The video clip（片段）shows one man who had found a $ 20 bill pinning it to the board.

“What I can say for the folks that gave the most, is that they were full of smiles,” Bridges said. “There’s a certain feeling that giving can do for you and that was apparent in those that gave the most." Most people who took dollars took only a few, but Bridges said a very small number took as much as they could.

While the clip might look like part of a new ad campaign, Bridges said the only goal was to show generosity and sympathy. He added that he hopes people in other cities might try similar projects and post their own videos on the Internet.

“After all, everyone has bad days and good days," he said. “Some days you need a helping hand and some days you can be the one giving the helping hand.”

24. What does the expression "money with no strings attached" in paragraph 1 mean?
A. Money spent without hesitation.       

B. Money not legally made.

C. Money offered without conditions.   

D. Money not tied together.

25. What did Bridges want to show by mentioning the bride? A. Women tended to be more sociable.

B. The activity attracted various people.

C. Economic problems were getting worse. D. Young couples needed financial assistance.

26. Why did Bridges carry out the project?

A. To do a test on people’s morals.        

B. To raise money for his company.

C. To earn himself a good reputation.      

D. To promote kindness and sympathy.

California has lost half its big trees since the 1930s, according to a study to be published Tuesday and climate change seems to be a major factor（因素）.

The number of trees larger than two feet across has declined by 50 percent on more than 46, 000 square miles of California forests, the new study finds. No area was spared or unaffected, from the foggy northern coast to the Sierra Nevada Mountains to the San Gabriels above Los Angeles. In the Sierra high country, the number of big trees has fallen by more than 55 percent; in parts of southern California the decline was nearly 75 percent.

Many factors contributed to the decline, said Patrick Mclntyre, an ecologist who was the lead author of the study. Woodcutters targeted big trees. Housing development pushed into the woods. Aggressive wildfire control has left California forests crowded with small trees that compete with big trees for resources（资源）.

But in comparing a study of California forests done in the 1920s and 1930s with another one between 2001 and 2010, Mclntyre and his colleagues documented a widespread death of big trees that was evident even in wildlands protected from woodcutting or development.

The loss of big trees was greatest in areas where trees had suffered the greatest water shortage. The researchers figured out water stress with a computer model that calculated how much water trees were getting in comparison with how much they needed, taking into account such things as rainfall, air temperature, dampness of soil, and the timing of snowmelt（融雪）.

Since the 1930s, Mclntyre said, the biggest factors driving up water stress in the state have been rising temperatures, which cause trees to lose more water to the air, and earlier snowmelt, which reduces the water supply available to trees during the dry season.

27. What is the second paragraph mainly about?

A. The seriousness of big-tree loss in California.

B. The increasing variety of California big trees.

C. The distribution of big trees in California forests.

D. The influence of farming on big trees in California.

28. Which of the following is well-intentioned but may be bad for big trees?

A. Ecological studies of forests.

B. Banning woodcutting.

C. Limiting housing development.

D. Fire control measures.

29. What is a major cause of the water shortage according to Mclntyre?

A. Inadequate snowmelt.      B. A longer dry season.

C. A warmer climate.         D. Dampness of the air.

30. What can be a suitable title for the text?

A. California's Forests: Where Have All the Big Trees Gone?

B. Cutting of Big Trees to Be Prohibited in California Soon

C. Why Are the Big Trees Important to California Forests?

D. Patrick Mclntyre: Grow More Big Trees in California

Rock music consists of many different styles. Even though there is a common spirit among all music groups, they make very different music.    31    At that time the Beatles entered the world of music from Liverpool.

After they were given an invitation to appear live on BBC, the Beatles quickly became famous in Britain with nationwide tours. By mid-1963, the Beatles had been extremely popular in England.    32    They held large concerts and performed at clubs. They became the hottest thing on the pop music scene in England. They began as a modestly successful musician group and ended the year as show business legends（传说）. John Lennon and Paul McCartney were named composers of the year.

   33    They were not sure how the Americans would react to the new type of music. Beatlemania hit New York on February 7, 1964. Hundreds of fans jammed the airport to greet them.    34    The concert was broadcast live and attracted the largest one night audience in the history of television up to that time. The Beatles were described as a British invasion（入侵）by local and nationwide newspapers at that time. Their victory in America was still remembered as a major turning point in the history of rock and roll. Thanks to the Beatles, a lot of opportunities were opened up to new faces on the market.    35    

A. They decided on a tour to the United States in 1964.

B. Even their hairstyles became major trends at that time.

C. Rock music developed in the 1950s and the early 1960s.

D. However, their songs changed the lives of generations to come.

E. Many rock bands were able to follow in the footsteps of the Beatles.

F. They appeared in the films A Hard Day's Night（1964）and Help！（1965）.

G. They performed their first concert in America at CBS television's 53rd street studio.

There are lots of ways to raise awareness for a cause. Usually, the    36    the idea is, the more it gets noticed. And that’s precisely why one    37    Frenchman has caught our attention.

Baptiste Dubanchet is biking across Europe，surviving    38    on discarded（丢弃）food. The three-month, 1 900-mile journey from Paris to Warsaw is Dubanchet’s    39    of raising awareness of food waste in Europe and throughout the world.

As you can    40   , the trip is no piece of cake. While restaurants    41    tons of food each year, much of it remains inaccessible because of    42    garbage containers, health regulations, or business policies. Only about one in ten places    43    him food that would otherwise be discarded.

For legal    44   , most restaurants have a policy against    45    food waste. "Some people have even    46    their jobs by giving me food," Dubanchet said.

What's    47    interesting is the attitude various cities have toward Dubanchet’s cause. Berlin has been the    48    while the most difficult was the Czech town of Pilsen. There, he had to    49    at some    50    different stores or restaurants before finding food. The 50 is all the more serious when you consider the    51    exercise required to bike from France to Poland.

"I have to get food    52    because after all the biking I am tired and I need the     53   ,"

Dubanchet explained. "Is my    54    full or empty? That is the most important thing, not what I am eating."

He aims to    55    his journey by mid-July. With any luck, he’ll turn a few more heads in the process.

36. A. cleverer         B. older                C. stranger         D. simpler

37.A. garbage-eating    B. sports-loving        C. food-wasting     D. law-breaking

38. A. secretly         B. finally         C. entirely         D. probably

39. A. purpose          B. way              C. opinion          D. dream

40. A. observe          B. imagine          C. suggest          D. remember

41. A. store            B. cook                 C. shop for             D. throw away

42. A. locked           B. damaged          C. connected            D. abandoned

43. A. bought           B. offered          C. ordered          D. sold

44. A. reasons     B. rights               C. fees             D. aids

45. A. begging for     B. giving away      C. hiding           D. causing

46. A. did          B. kept             C. accepted         D. risked

47. A. hardly           B. usually         C. particularly         D. merely

48. A. easiest          B. nearest              C. biggest          D. richest

49. A. work         B. shout                C. ask              D. jump

50. A. competition     B. conversation     C. conflict         D. challenge

51. A. adequate         B. rewarding            C. demanding        D. suitable

52. A. again            B. alone                C. later                D. fast

53. A. spirit           B. energy               C. time             D. effort

54. A. stomach      B. hand             C. pocket               D. basket

55. A. arrange          B. restart              C. report               D. finish