I've often wondered if I might do more good as a travel agent rather than as a psychologist.It seems that I have been more dramatically affected by certain kinds of travel experiences than I ever have.

     My trip to Iceland is a fine example of that.The plan was to spend two days in a remote mountain hut in Iceland.I was working on a photograhic book about winter in Iceland and needed to capture images of this amazing region of high mountain peaks，smoky volcanoes，and lakes with floating icebergs.

     The moment after we arrived，the weather turned extreme making visibility impossible.It snowed so much and the wind blew so hard that we couldn't leave the tiny hut.We tried to call for help but the radio did not work.Day after day，we watched our supplies of food and fuel grow dangerously short.We got acute cabin fever(幽居病)and started going for walks and ski expeditions outside.Even when the weather finally broke，nobody came to get us even though it was three days beyond our scheduled pickup.By the time the rescue team came to pull us out，we had all given up hope.

     From then on，the world looks different to me，as does my life.It would have taken me years of psychotherapy to get to the same point.

Almost everyone has a story to tell，and interestingly，most of these experiences were not altogether pleasant at the time.In fact，it appears that the most constructive life­changing journeys were those that involved some sorts of awful and uncomfortable events that forced the person to develop new resources，increase confidence，and solve problems in new ways.

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。

    Here are some of the world's most impressive subways．

    Mary Krupa became friends with the grey squirrels during her first week at Penn State,after spotting them running around and idly（漫不经地）wondering what they would look like with tiny hats on their heads.Today, everyone at the university knows her as the "Squirrel Girl".

    Mary started bringing them food,and gradually they began to trust her.She managed to put a hat on a squirrel and take a picture.Thinking that her colleagues could do with something to lift up their spirits,she started posting similar Photos on Facebook.The response Was greatly positive,and before long Mary and her squirrels became an Internet sensation.

    Growing up in a neighborhood outside State College,Mary was always fond of birds and animals around her home,but she didn't interact with people very much.She was later diagnosed with Asperger's syndrome,but the squirrels changed that.The squirrels are actually a good way to break the ice,because I'll be sitting here patting a squirrel and other people will come over and well just start like feeding the squirrels together and chatting about them,"she said."I am a lot more outgoing.

    And in case you're wondering how Mary is able to get the squirrels to do what she wants for her photos,it has a lot to do with food.For example,whenever she wants them to hold or play with something,she puts peanut butter on the prop（道具）,and they'll grab it.But getting to that part took a while.In the beginning,she would throw peanuts up the trees on campus and invite the squirrels to come down and get them,but they hesitated to approach her.She had the patience to earn their trust,though.

    This year,Mary is graduating with a degree in English and wildlife sciences.She wants to be a science writer and educate people on how to preserve the environment.As for her furry friends,Mary plans to stay in the area and visit them as often as she can.

    The Z Hotel is in the heart of London's West End and has comfortable accommodation in a contemporary design.

    All rooms include handcrafted beds, 48-inch Samsung HD TVs with free Sky Sports and Movie channels, and free Wi-Fi. Each room also has under-bed storage for an overnight bag, and wall-mounted hanging space for clothing. The Z Hotel also offers wheelchair accessible rooms.

    Continental breakfast is served in The Z Cafe every morning, including smoked salmon, fresh bread, fresh fruit salad and bacon rolls. A selection of salads, sandwiches and hot dishes are on offer throughout the day.

    The hotel is a 5-minute walk from Prince of Wales Theatre and Chinatown London, Leicester Square, Piccadilly Circus and Trafalgar Square. Heathrow Airport can be reached directly from Piccadilly Circus Underground Station.

    This is our guests，favorite part of London, according to independent reviews. This area is also great for shopping, with popular brands nearby: Apple, H&M, Zara, Burberry and Chanel.

    The Z Hotel is rated for the best value in London! Guests are getting more for their money when compared to other hotels in this city. Come and stay with us!

    Most popular facilities:

◆ Luggage storage     ◆ Heating    ◆ Free Wi-Fi     ◆ Air conditioning

◆ 24-hour front desk     ◆ Daily maid service     ◆ Parking     ◆ Lift

Prices:

    Bees may soon need to add protein shakes to their diet. Pollen (花粉) normally provides their protein (蛋白质). But rising levels of carbon dioxide (CO₂) in the air have reduced the protein in pollen. That's what a new study finds.

    Scientists compared recently collected flowers from Canada goldenrod. Then they compared pollen in them to pollen in goldenrod reserved at a museum in Washington, DC. They found today's plants have less protein. Protein levels in pollen from the older flowers were 18 percent. Today's goldenrod pollen has only about 12 percent protein. That's about one-third less than 172 years ago. Over that same period, CO₂ levels have gone up by more than one-third. Back more than 170 years ago, they were about 280 parts per million in air. Today they are about 398 ppm.

    To test whether CO₂ changes had played a role in the falling protein levels, the researchers did some tests. They grew goldenrod for two years at CO₂ levels of up to 500 ppm. More CO₂ in the air led to lower levels of protein in the flowers' pollen.

    Joan Edwards, one of the researchers, says that this drop in pollen protein could affect a bee's diet and health. It would be like eating junk food, tasting good but offering less nutrition (营养).

    Honeybees need to eat lots of protein. They use it to feed their young. They also need it to keep their immune systems healthy, says Cédric Alaux, a bee biologist at the French agricultural research agency.

    Bee populations have been decreasing worldwide in recent years. A drop in their food quality might play a role, Edwards says. And that drop might affect crops too. "The health of the bee population is not just for the flowers and the bees and biodiversity." She worries it also could play a role in "human health and well-being."

Toronto Greeters Program

Thank you for your interest in the Toronto Greeters Program. Toronto Greeters offer free visits to Toronto's lively neighborhoods and districts so you can discover the real Toronto.

Request Volunteer Greeters

We have lined up a large number of energetic, knowledgeable volunteer Torontonians, who are ready, willing and able to show you their favorite parts of Toronto. Tell us when you'll be visiting, when you have two to four hours of free time and what neighborhood you would like to see. We'll match you up with a greeter who shares your area of interest and you'll be all set to go. Please give us at least one-week notice to make the match. It is also important to note that greeter visits cannot be arranged for the first day of arrival in the city - just in case you are unavoidably delayed on your arrival.

Multilingual Greeters

The City of Toronto is one of the most multi-cultural cities in the world and celebrates over 100 different cultures. Residents speak over 180 languages and our city motto is Diversity is Our Strength. Toronto Greeters offer visits in a variety of languages.

Visitor Feedback

"I would like to give you positive feedback on the program that you are managing and the people that keep it going. The stories and explanation that Martin told me about the city were really interesting! I confirm that Toronto (and Canada in general) is a great place to visit, with wonderful people. You have a very nice and welcoming spirit in your community! You have a magic all around the city that makes a foreigner feel at home."

-- Eric Dan, Mexico