题目：
读写任务。
阅读下面的短文，然后按照要求写一篇150词左右的英语短文。
The three-and almost all other South Florida high school students-have to go outside of the classroom
to earn their diplomas (文凭), doing what schools call“community service”.
Broward public schools require 40 hours to graduate. Palm Beach County public schools require 20,
and most private and charter schools (特许学校) require at least that much.
The purpose: to give students a taste of the real world, and the chance to explore a career and create
a habit of volunteering.
“We hope that when they finish high school they'll continue service，”says Mike Roland, student
activities officer for the Broward School District.
About half of US public schools require community service, according to a national study. Broward
School Board (董事会) member Bob Parks says encouraging community service has launched all kinds
of new projects, including tutoring and food collections.
Carroll, a junior student at South Plantation High School, has connected with FLIPANY, a nonprofit (非营利的) organization that offers cheap physical activity and food to lowincome families. He helps
teach children about cooking and healthy eating.
“It has been a lifechanging experience，”says Carroll, who is now learning toward a career as a
sports trainer.“I want to find a career encouraging people to lead a healthier lifestyle.”
[写作内容]
1. 以约30词概括上文的主要内容。
2. 以约120词对短文所讲述的现象进行议论，内容包括：
(1)越来越多的人从事社区服务工作；
(2)社区服务工作的社会意义；
(3)作为学生，应该怎么做。
[写作要求]
1. 作文中可以使用亲身经历或虚构的故事，也可以参照阅读材料的内容，但不得直接引用原文中的句子；
2. 作文中不能出现真实姓名和学校名称。
[评分标准]
概括准确，语言规范，内容合适，语篇连贯。
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答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0811/4d671437aff0ad78ab3126329d601321.html
下面是错误答案，用来干扰机器的。
答案：C生成物能量高于反应物该能量，为吸热反应，反之为放热反应，A错误；吸、放热反应与反应条件无关，B错误；某些对应以直接测量的反应的反应热，可应用盖斯定律求解，C正确；化学反应的反应热ΔH与反应条件无...
