4 . It was a cold evening and my daughter and I were walking up Broadway. I didn't notice a guy sitting inside a cardboard box. But Nora did. She wasn't even four, but she _______ at my coat and said, “That man's cold. Daddy, _______ we take him home?”

I don't remember my reply. But I do remember a sudden _______ feeling inside me. I had always been delighted at how much my daughter noticed in her _______, whether it was _______ in flight or children playing. But now she was noticing _______ and beggary.

A few days later, I saw an article in the newspaper about volunteers who picked up a food package from a nearby school on a Sunday morning and _______ it to an elderly person. It was quick and easy. I _______ us up. Nora was _______ about it. She could understand the importance of food, so she could easily see how ________ our job was. When Sunday came, she was ready, but I had to ________ myself to leave the house to fetch the food package. On my way to the school, I fought an urge to ________. The Sunday paper and coffee were waiting for me at home. Why do this? ________, we phoned the elderly person we'd been appointed. She ________ us right over.

The building was in a bad state. Facing us was a silver-haired woman in an old dress. She took the package and asked us to come in. Nora ran inside. I unwillingly followed. ________ inside, I saw that the department belonged to someone poor. Our hostess showed us some photos. Nora played and when it came time to say goodbye, we three hugged, I walked home in tears.

Professionals call such a(n) ________ “a volunteer opportunity”. They are opportunities, I've come to see. Where else but as volunteers do you have the opportunity to do something ________ that’s good for others as well as for yourself? Nora and I regularly serve to needy people and ________ clothes for the homeless. Yet, as I’ve ________ her grow over these past four years, I still wonder-which of us has ________ more?

5 . Friendly Laughter

Most people can share a laugh with a total stranger. But there are subtle - and _______ -- differences in our laughs with friends.

Greg Bryant, a cognitive scientist at the University of California, Los Angeles, and his colleagues previously found that adults from 24 societies around the world can distinguish simultaneous "co-laughter" between friends from that between strangers. The findings suggested that his ability may be _______ used to help read social interactions. So the researchers wondered: Can babies distinguish such laughter, too?

Bryant and his fellow researcher Athena Vouloumanos, a developmental psychologist at New York University, played recording of co-laughter between _______ of either friends or strangers to 24 five-month-old infants in New York City. The babies listened _______ to the laughs shared between buddies - suggesting they could tell the two types apart, according to a study published in March in Scientific Reports.

The researchers then showed the babies short videos of two people acting either like friends or strangers and paired those with the _______ recordings. The babies stared for longer at clips paired with a mismatched recording - for example, if they saw friends _______ but heard strangers laughing.

"There's something about co-laughter that is giving _______ to even a five-month-old about the social relationship between the individuals," Bryant says. Exactly what components of laughter the infants are detecting remains to be seen, but prior work by Bryant's team provides _______. Laughs between friends tend to include greater variations in pitch and _______, for example.

Such characteristics also distinguish ________ laughs from fake ones. Many scientists think heartfelt laughter most likely ________ from play vocalizations, which are also produced by nonhuman primates, rodents and other mammals. Fake laughter probably emerged later in humans, ________ that ability to produce a wide range of speech sounds. The researchers suggest that we may be ________ to spontaneous（自发的）laughter during development because of its long evolutionary history.

It's really cool to see how early infants are distinguishing between different forms of laughter," says Adrienne Wood, a psychologist at the University of Virginia, who was not involved in the study. "Almost every ________ moment is a social interaction for babies. Therefore it ________ that they are becoming very much accustomed to their social worlds."

6 . Green Collar Section

What is ecotourism? According to the International Ecotourism Society, ecotourism can be defined as responsible travel to natural areas that conserves the environment and _______ the well-being of local people. That is to say, most ecotourism experiences are _______ at helping people to foster an appreciation of the environment, the conservation of wildlife, plants and resources, and respect and understanding of native _______.

Ecotourism is socially important because it provides a way for people to travel responsibly, and to learn about and respect the environment of these natural places. Ideally, ecotourism professionals organize and _______ an experience that demonstrates local environmental sustainability and cultural sensitivity for travelers.

At the university level, ecotourism programs are usually found in environmental science and recreation management departments. Students learn basic knowledge about different _______ of tourism (such as accommodation, transportation, business, organization, and hospitality) as well as conservational issues (such as _______ protection for wildlife and rational _______ of resources). And in more advanced programs, students will focus on nature-based education, such as and ecological issues. _______, it is also helpful, and sometimes _______, to be fluent in a foreign language, or students will not be able to hold a global insight. After graduation, it is also ________ for students to receive further career training programs, such as Group Dynamics for Ecotourism, Green Event Planning, Natural Resource Assessment and Planning, Intercultural Communications, Wilderness & Remote First Aid, etc, in order to become better adaptable to the updating job requirement.

As the threat to our planet ________ in many communities, their inhabitants are becoming more interested in the natural world around them and in ways to conserve the environment. Ecotourism is growing at three times the ________ of the tourism sector itself, and demanding more knowledgeable workers ________ to sustainability.

Jobs in ecotourism can be highly risky and adventurous, but also limited by season. Green travel employes generally work for private companies, government and public institutions, and nonprofits. Salaries in ecotourism ________ from field to field, but it helps to have a degree and some experience. Group leaders and travel guides are responsible for guiding tours through the ecosystems of various destinations ________ pointing out the benefits of green travel and a green lifestyle. Leaders and guides come from a wide range of backgrounds. Many will have experience in the tourism industry, while some will be scientists looking for positions in education.

7 . Each stage of life has different major demands mainly because our needs change. As children, a period of deep uncertainty and sensitivity,___ and   family   are   the   top   needs although we may not think of them in those terms. As teenagers, we are__the waters of adult life, preparing ourselves for the exciting unknown and as young adults, we search for a__. The drive to fulfill each stage is so strong that sometimes we have to hold the breath to___.

At each stage, although everyone may___in dreams, we will all try to   take hold of the means to achieve our particular dreams. Some will be driven with   almost   tunnel vision,   others take a(n)____attitude to getting there. Anyway,   without dreams it is   hard to direct   life. If   you   are   fortunate   enough   to   achieve   your   current   dreams,   you   can   move   forward   for___desires and prepare yourself for a new conquest.

For each period of life,   the   needs are   decided by that stage,   and as we grow older, whether we like it or not, we gain___, which, on the basis of former facts and information,   permits us to see a broader view if we are wise enough to take on board what is there. As we mature,   the sharpness of the___of youth, the black and white approach to life, will be tempered by what is possible, kind, just and fair.   Ageing helps us to grow if we allow it.   So often   we___that process, holding on tightly to   rooted beliefs   which do not do us   any favour, yet our needs change and in result we will___be different.

Physically,   even when we stay fit and able, the body cannot deliver in quite the   same way as youth. This comes as a(n)___to most of us who start life in the belief that we are unbeatable and will live forever. Again, coming to terms with this fact helps us to___anxiety, and finally realize the unexpected benefits which come along with___face and slowed body.   What was important when we were young can be seen now in a new light, and a different list of importance emerges. In the end, extreme age can be as demanding and sensitive as babyhood, so while ones need changes through life, it seems to come___.

8 . When I first met Begay at Los Ninos Elementary on “King and Queen Day”, she was wearing a smile ear-to-ear.

This morning, though, Begay was______. The parent she had been trying to_____was a no-show again. Begay______needed to talk to her. Her boy was smart, but now about a year behind. She______there were problems at home. He was always late and had already missed too much school.

By 8 a.m. , kids were arriving, and Begay’s______quickly became a beehive（蜂窝）of activity. Forty-five minutes_______, the little boy finally walked in, shoulders sunk, head_______. Rather than______him in front of the class, Begay welcomed him warmly. He was testing Begay’s long-held_______that no child is a lost cause, no matter how______he seems. “It’s the unspoken       _____teachers start out with,” Begay said.

During lunch I sat down with Begay’s students and asked them what they liked about her.

“ She never gets angry, “ said one girl. A boy______:” She’s funny and likes telling jokes.”

Before we left the______, the shy, quiet girl next to me______,” She teaches me when I don’t want to learn.”

Her_______stayed with me. When I_______it with Begay, I told her that I felt it was a very       _____thing for a child to say. She agreed.

“They never______that to me.” said Begay, “But that’s what I_______. I want them to enjoy school. I want them to feel like someone_______them.”

9 . Lazer loves running, and although he experiences a series of potentially fatal heart problems, he always cherishes a new finish line to inspire his _______.

By 2008, Lazer had undergone six heart _______, and the last one left him _______. In an attempt to feel_______, he decided to_______ his diet and, at the suggestion of a friend, started drinking more nutrient-packed juices._______, he began to feel good enough to _______ his sneakers and hit the_______again.

“After _______ the hospital, my goal was not to ________. I wanted to live my life as I desired, and that meant to ________ running and be in the best shape that I can,” he says. “I wasn’t going to be sedentary and sit on a sofa and ________ the remote. The big thing for me was that I wanted my own life. I was going to do everything I could to get my life back.”

To Lazer, that meant running, since it was such a big part of that life. ________, just months after that sixth surgery in 2008, he was back________ the starting line of the Las Vegas 26.2. And this past November, he crossed the finish line of his 18^th ________ race.

Lazer ________ running as one of the main reasons he’s lived well beyond that one-year prognosis he got back in 2004. “I believe I started running ________ knowing that if I didn’t, I wouldn’t be living too ________,” he says. “Running is a part of who I am—I am ________ to be the best that I possibly can be. It’s such a huge part of my life that my life seems out of order if I’m injured or I can’t run. It’s kind of my ________.”

10 . Life is filled with challenges. As we get older we ____ realize that those challenges are the very things that ____ us and make us who we are, it is the same with the challenges that come with____.

When we are faced with a challenge, we usually have two ____. We can try to beat it off, or we can decide that the thing___ the challenge isn’t worth the___ and call it quits.

Although there are certainly___ when calling it quits is the right thing to do, in most __ all that is needed is___ and communication.

When we are committed to something, it means that no matter how___ or how uncomfortable something is, we will always choose to____ it and work through instead of running away from it. Communication is making a ____ for discussion and talking about how you feel instead of just saying what the other person did wrong. ____ you can say to a friend, “I got my feelings hurt.”___ “You hurt my feelings,” you are going to be able to solve the problem much faster.

In dealing with many challenges that friendship will bring to you, try to see them for___ they are: small hurdles you need to jump or ____ on your way through life. Nothing is so big that it is ____ to get over, and hurt only ____ to make us stronger. It is all part of growing up, and it ____ to everyone, and some day you will ____ all of this and say, “Hard as it was, it made me who I am today. And that’s a good thing.”