Riverside High School is home to three very special young people: Alan, Mary and Natalie.

These three students all give up several hours each week to help out other people. Mary loves animals and plans to be a vet. Every Saturday morning, while other teens are playing sports, studying or sleeping, Mary is helping out at an animal hospital. But volunteering brings its own reward, according to Mary. "Sure, I work hard, "she says, "but I'm also learning a lot about animals”.

Natalie likes reading. She taught herself to read at the age of four. She works as the volunteerat an After School Reading Center, helping young people to read. "Volunteering is great, "says

Natalie,"because you can do things that you love to do and help others at the same time. Alan wants to be a professional singer. Most weekends, he works at a charity hospital. Volunteers don't receive any money. For Alan, the reward comes in bringing happiness to others. Alan says,” everyone should do some kind of volunteer work. It makes me learn n to appreciate what have and cherish the little things in life. Then the world would be a better place.

Now, Mary, Alan and Natalie have a plan to join in a volunteer abroad program. They want toexperience volunteer vacations while they're traveling overseas. IVHQ, the world's leading volunteer travel organization with over 10 years’ experience in providing impactful and affordable volunteer abroad programs, can connect thousands of travelers with meaningful volunteer opportunities abroad. Are you considering volunteering abroad in 2019? Take a quiz to help you find out the perfect volunteer abroad opportunity and make 2019 your best year!

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Cars make our life more convenient． But they can also be a problem， especially fossil fuel（化石燃料）cars， which are a major cause of air pollution．

To improve the environment， many countries are d    39    electric vehicles（EVs， 电动车）． Among them， China is taking a leading role and has created the world's largest EV m    40    ， according to the Wall Street Journal．

Last year， over 40percent of the 753，000EVs sold worldwide were sold in China， more than twice as many as the number sold in the United States， according to the International Energy Agency．

Chinese drivers are already big fans of ECs． Chinese auto companies（汽车公司）i    41    BYD and BAIC（北汽集团）were among the top in the world in EV sales．

"Charging an electric car is cheaper than filling up a fossil fuel car with gas，"said a customer， who bought an electric car from BAIC this year．

However， there are still some problems． It is h    42    to find charging piles（充电桩）． The cars can't go far before they need to be recharged．

S    43    of these problems are being solved， In 2014， China had 31，000charging piles， according to Xinhua News Agency． Now China has the world's largest EV charging network， with more than 167，000charging piles altogether， according to the Economic Daily．

China is trying to make EVs p    44    to reduce pressure（压力）on its environment． The government promised to s    45    increasing carbon dioxide（二氧化碳）．"As China goes， so will the world's auto industry，"the Wall Street Journal said．

Jim and Danny first met when they were 6 years old. They became best friends, spending their summers together in a seaside In those early years, they went hiking almost the whole to sail before they were 10. The year they turned 11, their parents sent them both to the same boys’ camp in New Hampshire. There they began to love the overnight trips.

When they were 15,they spent a summer in Quebec, camping in an old tent. The year after graduating from college, they drove to Central America and rode a train through jungles,.

After that , they went their separate ways. Jim took a job as a teacher at a school. Danny became a journalist and lived in Boston . They sent each other Christmas cards, but found it n difficult to stay in touch.Their careers took them in different directions, giving them different experiences .

The years went by. They aged. They both turned 60. And then, miles apart, they both woke upone morning and knew it was time to retire. Both of them realized it was time to leave the jobsthat had kept each of them excited for 35 years.

It was time to begin a new chapter of life.

Danny had heard about a research project in Argentina. A team or scientists was searching for the planet’ s oldest dinosaur fossils(化石). And the team wanted some volunteer.

Danny called his friends of 55 years . He told him about this project . Then, he asked him whether he would consider going on such a trip. The answer was :Yes !

A few months later, just retired, they were setting up a tent at the foot of the Andes. Every day for the next two weeks, they hiked across the desert, searching for the fossils of ancient animals.

Late at night,lying in their sleeping bags,they looked up at the cold black sky. They talked about the time they had camped in the past.

As Jim and Danny had back then, they started to laugh. They couldn’t stop. The years between them fell away. Circles reconnected. They were boys again.