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野樱桃李是世界上濒临灭绝的野生果木,它具有喜光、喜温凉、喜潮湿的生长习性,在我国仅分布于新疆伊犁,下图示意野樱桃李等野生果木的分布。1993年专门从事樱桃李开发的甲饮料公司在该区域成立,至2010年该公司的樱桃李饮料已成为新疆三大品牌饮料之一。2014年甲公司决定进一步拓展市场,扩大生产规模。与此同时,野樱桃李生长地生态环境在不断恶化。出于生态保护的考虑,公司尝试在伊犁河谷仿生试种野樱桃李,但因冬季河谷气温较低,导致野樱桃李大量死亡。原料危机已经成为制约甲公司发展的瓶颈。

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    Every year many young people leave school for a few weeks or months and enjoy an unusual type of educational program. They learn new skills by living in a different country and doing unusual jobs. There are several organizations. They help students to find the experience they are looking for. The table below shows a few possibilities for students.

Country

Job

Time

Description

India

Teaching young children

One month

·Teaching music and dance

·Helping children learn how to communicate

Ghana

Health care work

Two months

·Seeing how doctors work in a less developed country

·Helping care for patients

Thailand

Saving elephants

Three weeks

·Cleaning elephants

·Helping train elephants

New Zealand

Teaching Chinese

Six weeks

·Helping adults learn Chinese

·Spreading Chinese culture

    One interesting possibility is helping elephants in Thailand. Most people think of elephants as animals in zoos. In fact, many elephants in Thailand are no longer kept in cages. Now, hundreds of them are homeless. They don't have owners to care for them. Although they may look well, they are often in poor health and don't have enough to eat.

    One center in Thailand cares for these elephants. It gives them a safe and natural living space. When they are at the center, they stay in a building but are free to walk around. Students come from all over the world to help here. The student helpers work with the elephant keepers. These keepers train the students in caring for the elephants. In the morning, they go to the forest together and lead the elephants to the center. They clean them and give them food. In the afternoon. They take the animals back into the forest for the night. Helping at the center is interesting and the young people learn a lot.