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。

    A survey has shown that what you do on a plane can be determined by which nationality is listed on your passport.

    According to the results of an international passenger survey, Australians are the biggest drinkers on board with 36 percent choosing to down the hatch, compared to 35 percent of Americans and 33 percent of Brits.

    The Airline Passenger Experience Association(APEX) spoke to around 1,500 people, aged 18 and older, who have travelled by plane at least once during the last three months and were living in the United States, United Kingdom, Germany, Japan, China, Singapore, Australia and Brazil.

The results found Chinese travelers are most likely to nod off once the seat-belt sign switches off. They are also the first to take out their credit card for some in-flight shopping and the biggest fans of gaming. Americans on the other hand like to use their time in the air more productively—- when not drinking—- choosing to work while flying at 35,000 feet.

Meanwhile, Brits and Germans are the best at making chat with random strangers—-spending 50 percent more time than any other nationality. Comparatively, Brazilians conduct their conversations online via email, messaging apps or social media.

    Despite plane food having a bad reputation, seven out of ten interviewees said they were happy to eat up on the selection of in-flight snacks and meals. In-flight magazines were also popular with four out of five passengers.

    The international flyers did however express their desire for better in-flight entertainment. “The industry has greatly improved the comfort, entertainment and onboard service, and passengers are accepting those improvements” said Russell Lemieux, APEX executive director. “At the same time, passengers are demanding more from their air travel experiences which will drive more improvements touching all aspects of the journey. ” he added. 

    Every day when Glen Oliver orders his morning coffee at the drive-through window of a local cafe, he insists on paying for the order of the person behind him. He also asks the restaurant workers to tell the customer to have a great day, in case they're not already having one.

    Oliver has never made a big deal out of his own generous actions until a letter was published by a news website in November. He found out that he had not just bought someone his breakfast —he had saved a life.

    According to the website, someone had written a letter stating that on July 18th, he was planning on committing suicide. The writer said that while he was at the drive-through window, he was planning on going home, writing a note and ending his life. When he went to pay for his coffee and muffin, however, the cashier told him that the man in the SUV in front of him had picked up the tab and told him to have a great day.

    “I wondered why someone would buy coffee for a stranger for no reason,” said the writer. “Why me? Why today? If I were a religious man, I would take this as a sign. This random act of kindness was directed at me on this day for a purpose.”

    When the writer arrived home, he couldn't hold back his tears and started to think about the simple good deed that had affected him so deeply. “I decided at that moment to change my plans for the day and do something nice for someone. I ended up helping a neighbor take groceries out of her car and into the house.”

    The writer says that in the months following that fateful event, he does at least one kind thing for others every day. “To the nice man in the SUV, thank you from the bottom of my heart. Please know your kind gesture has truly saved a life,” he said. “On July 18, 2017, I had the greatest day.”

    The morning after an evening flight with my then three-year-old daughter, I couldn't wait to get her to school. I was tired from the anger, and her inability to communicate because of her slowed language development.

    As I accompanied her into the car, I felt desperate. Nothing was right with our world. She had been born around the same time the nation was witnessing the birth of another Great Recession(经济萧条). My job and my house had been victims. Then this happened. My child's language delay was identified, but doctors struggled to properly diagnosis her. I felt like we both needed to be rescued.

    I returned that afternoon as disenchanted with the little girl I loved as when I left.

Walking slowly toward the school's playground gate, I found her preschool teacher racing to greet me.

    “You should have seen her today!” His breathy words were supported by excitement.  I didn't interrupt. “See that climber.” He pointed to a piece of wooden playground equipment that looked like a rock wall. I nodded. “Well, every day since she started school. She's tired and failed to make it to the top.” He took a breath. “And today she made it.

    He expressed his joy just like he'd witnessed her conquering (征服) Mount Everest “She cheered and celebrated! I wish I'd recorded it.” His words comforted me. My daughter had conquered her mountain. As she ran toward me, I recognized something I hadn't before. I saw her perseverance. I saw her strength. I saw a hero.

    Everyday greatness celebrates ordinary people who do unusual things in big and small ways, showing courage, kindness, love and selflessness. We encourage you to click these brief accounts and invite you to share your own story in our community.

Teen Volunteers

    The zoo supports future conservation by having the youth involved in voluntary jobs. We have popular summer year-round programs that are designed to be fun and educational while building job readiness skills and inspiring youth to appreciate, care for, and conserve nature.

    ◆Zoo Crew

    Volunteer on a team to restore wildlife habitat at Lake Merced and Mountain Lake in San Francisco.

    Ages11-14

    Program runs: September through June

    Hours: One Saturday per month, form 10 a. m. to 12 p. m.

    The Zoo Crew will hold a necessary training for all prospective volunteers in August at the Zoo.

    ◆Nature Trail

    Nature Trailers work in close proximity (接近) to the Zoo's ambassador animal collection, and teach guests about adaptations and conservation. Nature Trailers will learn to handle a few small mammals and reptiles.

    Ages 12-14 (must be 12 by Memorial Day)

    Program runs: Memorial Day to Labor Day

    Hours: 2 days per week, 10 a. m. to 4: 45 p. m.

    ◆Talk on the Wild Side

    Learn to handle amazing animals like livestock and arthropods (节肢动物) while giving informational talks to zoo visitors. Use biofact carts to educate the public.

    Ages 14-17

    Program runs: Memorial Day to Labor Day

    Hours: 2 days per week, 9: 30 a. m. to 4: 30 p. m.

    ◆Zoo Teacher Assistant

    Help kids explore the world of animals through zoo tours, crafts, games and assist Zoo Camp teachers with activities. Gain practical work experience with children.

    Ages14-17

    Program runs: mid-June through mid-August

    Hours: A daily half-day or full-day shift for a minimum of four weeks over the course of the summer.

    Going back to school can be an anxious time for many students. But one institution in Texas is doing its part to make sure middle schoolers are returning refreshed and inspired to learn.

    Through a process called the "bathroom inspiration project," teachers and administrators at Warren Middle School, spent their summer beautifying the school's restrooms by painting motivational murals (壁画) on each of the stalls (小隔间).Forming messages like "Your mistakes don't define you" and "Scatter (撒播) kindness," the brightly colored words are exactly what a young student needs to see when having a rough day-or any school day for that matter. And now that classes are officially in session, people are already noticing a positive impact.

    Since posting photos of upgrades to the school in July, Principal Joshua Garcia says that the alterations have aroused a great response.

    "Students have been talking about the murals from the moment the pictures had been posted. Some even took the time to find a reason to come up to the campus to see the murals," he says." I think what makes this small little action so valuable is that it has set the tone for our campus."

    And not only is that important to students, parents, and fellow staff, but it is also vital for the school's new principal, who is trying to gain the trust of the community during a time in which trust is so necessary for schools.

    "Being new to the campus, I think the parents were able to see how much I value their children and have their best interest at heart," Garcia continues. "I have had many parents tell me how they can just feel a difference in the campus climate and how much they are enjoying seeing their children wanting to come here. These murals have put trust back in the campus and its teachers, and by doing so we are able to build a culture in which our students want to be here and learn."

What makes preschoolers eat their vegetables? Raise their hand? Wait their turn? "Because I say so" is a comment that parents often repeat. But when it comes to getting kids to behave, a recent study by Duke University researchers suggests that the voice of adult authority isn't the only thing that matters. Around age three, fitting in with the group starts to count big too.

To understand what cause preschoolers to fall    in    line, the researchers conducted a test in a lab, where they invited 3.5-year-olds to help set up for a pretend tea party. Each of the 104 children was given a blue sticker (贴纸) to wear at the start of the study, and told that the people with that color sticker were part of the same team. Next the researchers watched as the children decided among different kinds of teas, snacks, cups and plates for the tea party, first on their own and then after listening to the choices of other team members.

Sometimes the other team members considered their choice as a matter of personal preference ("For my tea party today, I feel like using this snack.") Other times they presented it as a need shared by the whole group. ("For our tea parties today, we always use this kind of snack.")

After listening to the choices of others, most of the time the children stuck with their first choice. In other words, children who had said they felt like using, say, the cookie finally picked the cookie no matter what the other person said they were using. But 23% of the time the children changed their choice to accept someone else's. And when they did, they were more likely to go along with the other person when a choice was presented as a group need rather than just a personal preference. The finding held up even when the other person was another child, not an adult.