黄大年，著名地球物理学家，生前担任吉林大学地球探测科学与技术学院教授、博士生导师，他刻苦钻研、勇于创新，取得了一系列重大科技成果，填补了多项国内技术空白。黄大年经常工作到夜里两三点，没有休过寒暑假，每次出差开会都把行程安排得满满的，以节省更多时间用于科研和教学。患病前，黄大年3次累倒在工作岗位上。治病期间，每天在病房中也会与团队师生研究项目。他说:“我只想为国家做更多的事！”

    刘长城，从1992年开始运用所学专业法律知识为上百位职工讨回公道，筹集资金为群众铺路架桥，帮助全镇130多户贫困家庭排忧解难。2008年12月，成立长城爱心大本营，先后组织志愿者开展公益帮扶活动240余次，帮助683名困难群众解决实际困难，还发起了“轮椅上的画家梦”、“轮椅上的电商梦”等助残项目，使1200余名无助、孤独、甚至厌世的残障人士走出家庭，融入社会，摆脱贫困，自立自强。

阅读材料后结合所学知识回答，黄大年、刘长城的事迹对你今后的人生有哪些启示？

盐酸是实验室重要的化学试剂，请回答下列问题：

    Do you know that over ten million American kids go to camp every summer ?____ Back then, hot city summers made people feel bad and even unhealthy for children, so escaping to the country for a few weeks became popular. Today, kids have different reasons for making camp a part of their lives.

To meet new people

    Camp is a great way to make new friends and learn about different places and cultures. Michiko, 13, put it like this, “I loved camp. I met this girl named Manny who lives in New York and she is cool.____We taught each other words.”

    To challenge (挑战) yourself

    ____Activities like trying new sports, learning new games, or pushing yourself to achieve something need a lot of courage. Arabella, 13, told us, “I went to summer camp and I passed my swimming test! I can hardly swim, so it was a big progress.____”

    To experience nature

    There's a great big natural world out there, and going to camp helps you learn how beautiful and important it really is.____Getting out into the woods or mountains can give you a better understanding of the world.

A. Not all the things that kids do at camp are easy.

B. She speaks Spanish and I speak Japanese.

C. I felt great afterwards.

D. It's also a great way to learn about teamwork.

E. Summer camp has been a U.S. tradition for over 150 years.

F. Going to camp is all about having a good time.

G. Without trees, soil, water, and wildlife, the Earth couldn't survive.