Many people argue that working can be a valuable experience for the young. However, working more than about 15 hours a week is 1 for teens because it reduces their involvement with school, and 2 a materialistic and expensive lifestyle.

    Schoolwork and the benefits of extracurricular activities tend to be 3 when teens work long hours. As more and more teens have filled the many part-time jobs, teachers have faced increasing 4. They must both keep the attention of 5 pupils and give homework to students who simply don't have time to do it.6, educators have noticed less involvement in the extracurricular activities that many consider a 7 influence on young people. School bands and athletic teams are 8 players, and sports events are 9 attended by working students. Those teens who try to do it all may find themselves 10.

    Another 11 of too much work is that it may promote materialism and an unrealistic lifestyle. Some parents say that working helps teach teens the 12 of a dollar.13 that can be true. It's also true that some teens work to help their family or to save for college.14, surveys have shown that a lot of working, teens use their earnings to buy luxuries. These young people won't spend 15 —they can just about have it all. In many cases, they are getting used to a lifestyle they won't be able to 16 several years down the road, when they no longer have parents 17 car insurance, food, and so on. At that point, they won't have enough money to pay for necessities as well as luxuries.

    Teenagers can 18 the benefits of work while avoiding its drawbacks, simply by 19 their work hours during the school year. As is often the case, a moderate (适度的) approach will be the most healthy and 20.

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一位探险者在游记中写到：蒙特港区，这里多岛屿、半岛和海湾，徜徉在峡湾．可在海上看到排列成龙的高大雄伟山峰群，山顶峰尖锐如剃刀。从蒙特港到埃斯克尔，沿途雪峰与火山映照，冰川同密林交错。在向特雷利乌前进途中，自然景观与先前存在极大差异，气候条件恶劣．尘暴不断……图7示意该次探险区域与路线。