第二部分：阅读理解(共25小题;每小题2分，满分50分)

阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项，并在答题卡上将该项涂黑。

A

One day last June. Clifford Luther served a burger and fries to a man passing through his  Saskatchewan diner.  Two days later,  the man returned and wrote him a check for  $ 10 .000.   " I thought.  they' re good burgers and fries, but they're not that good, " Luther told CTV News.

The tipper was Bob Erb of British Columbia, who won Canada's  $ 25 million Lotto Max jackpot ( 头奖)  in November 2012 and has been giving money to people in need.  He's donated  to food banks. senior groups, and local fire departments, and helped 20 people in Terrace, his  hometown ,  get necessary dental care they couldn ' t afford.

While making burgers that first afternoon , Luther told Erb that his 25 - year - old daughter  had just been diagnosed with cancer in Vancouver, two provinces and about 1,000 miles away.  "It struck a chord. I lost a son four years ago and know the worries a parent has, " says Erb. "I  decided on the way home I' d Leave him some money so he could go and see his daughter. "

A few days later, Erb was on his way back to British Columbia after delivering his father' s  ashes to a family cemetery plot in Saskatchewan. He stopped at the diner for another burger. which Luther offered to buy him because Erb had tipped him well just a few days before. Erb said  " no way"  and,  while the burger was grilling. he asked the diner owner for a pen.  then scrawled out the check and left it on the counter.  "Luther looked at the check and couldn't say anything.He just held his arms out. "  Erb says.

Erh .60,  still works construction part-time and hasn't thought  twice about parting with  the $ 7 million he ' s given to family .  friends,  and the community.

" If you have enough to feed yourself,  you help others out . "  he says.

46. Clifford Luther DIDN'T think that he received the money ________.

A. because his business was in trouble

B. for his excellent service to the man

C. because his burgers and fries were tasty

D. for the good management of his diner

47. On his first visit to the diner, Erb _____ .

A.  wrote Luther a check for  $ l0 .000

B.  learned about Luther's sad story

C.  didn't give Luther a tip

D. got a burger free of charge

48. What can we learn from the underlined sentence in Paragraph 3

A. Erb was careless with his money.

B. Luther was very thankful to Erb.

C.  Luther didn't need the money at all.

D. Erb had the similar experience.

49. Erb wrote Luther a check to ______.

A. help Luther to get a dental care

B. pay for his burgers and fries

C. help Luther go and see hia daughter

D. help him expand his business

50. What can we learn about Erb from the text?

A. He was generous and helpful.

B. He once lived a miserable life.

C. He got the money by hard work.

D. He had used up all his money.

B

If you bought some candy months ago but never ate it. how can you tell whether it's still edible (可以吃的) ? The easiest way is to check the " expiration date (保质期) "  printed on the wrapper.  If that date has already passed ,  you're likely to throw the candy away.  But is that really necessary?

According to a report, tons of food is wasted each year.  largely because people don't fully understand what expiration dates ,  o "use-by dates" ,  actually mean.

Food dating was introduced in the 1970s, because consumers wanted more information about the things that they were eating. When they first showed up. use - by dates were only supposed to indicate freshness because producers wanted their products to be tasted in their best conditions. However,  most customers mistakenly believed that use - by dates indicated how safe the food was , and they still largely do.  But the truth is that these dates aren't related to the risk of food poisoning or food - borne illness. according to Time News.

Eggs ,  for example,  can still be eaten three to five weeks after purchase, even though the use by date is much earlier. When their use - by dates pass, strawberry juice may lose its red color and biscuits may lose their crunch  ( 松脆的口感) but they are not harmful.

To stop consumers from misinterpreting  the date and reduce the waste, scientists are calling for a standard explanation to be printed following the use - by dates.

But this won't be a mistake that is easy to correct. since people have believed it for so long Another problem is that the quality levels of different foods change differently -some are still edible long after their use - by date while others are not.

As a result, food industry officials are now thinking of changing the use - by date to a date indicating when food is most likely to spoil.

51. Every year, tons of food is thrown away because______.

A. it is not safe to eat

B. it has passed use - by dates

C. the use - by dates are wrongly printed

D. it is no longer fresh

52. According to the text, use - by dates was first introduced to_____.

A. reduce the waste of food

B. show whether the food was fresh

C. remind people to eat the food earlier

D. indicate the risk of food poisoning

53. The author gives examples in Paragraph 4 to explain that______.

A. eggs can be kept longer than their use - by dates

B. strawberry juice is harmful if it loses its color

C. biscuits will go bad if their use - by dates pass

D.  some food is still edible after its use - by date

54. What does the underlined word "misinterpreting in Paragraph 5 mean?

A. making use of                       B. paying no attention to

C. understanding wrongly                  D. having no idea of

55. Which of the following is true according to Paragraph 6?

A. It is hard to set a standard for food quality.

B. The food dating should be stopped.

C. Food industry is responsible for the food waste.

D.  It's easy for people to accept the new standard.

C

A new study has found that African elephants appear to use darkness to avoid being seen or heard when raiding(搜索) farmland for food.  The study Also showed that elephants carry out their food raids based on the appearance of the moon , or lunar cycle.  Researchers believe the animals are doing this during the cover of darkness to avoid contact with human beings.

A report on the study appeared in the African Journal of Ecology.  Rachel Grant teaches animal behavior at Anglia Ruskin University in England. She says elephants are cathemeral, meaning they are active both day and night. But she says, their raids on crops almost always take place at night. This suggests that the animals go near villages when they sense that their huge bodies are more difficult to see

Ms. Grant added that an elephant's knowledge of the higher risk of being discovered on moonlit nights could explain its behavior during the lunar cycle.

The study was carried out in and around Mikumi National Park in Tanzania. The park has one of the largest populations of wild elephants in Africa. It is about 300 kilometers west of Dar es Salaam .

The researchers chose five villages near the wildlife area and counted how many times elephants raided crops.  They found that few of elephant " raid nights"  took place during a full moon. The amount of crop damage. also fell considerably during such periods.

Rachel Grant says some elephants have what she calls " an internally  arising biological rhythm( 生物节律) " or they may be basing their decision - making on local conditions.  In her words, "Many animals change their behavior according to varying light levels and the realizing  risk of raiding foods. " She says this rhythm is likely to be a partly evolved, partly learned response.

Ms. Grant says the behavior probably is found in elephant populations in countries other than Tanzania. She adds that information from the study could be used to protect farms from elephant damage.

56. What is the text mainly about?

A. A new finding about elephant behavior.

B. The relationship between animals and humans.

C. Wild elephants living in Tanzania.

D. A wildlife protection program in Africa.