2．【答案】A

　　【解析】细节理解题。根据第二段第二句可知，许多商人、政治家、大学教授，特别是数百万的基层群众参与了这项活动。关键词especially以及millions of表明这类人是环境保护的主要支持者。故选A项。

　　3．【答案】D

　　【解析】推理判断题。根据第四段首句“Great improvement has been achieved.”及下文的描述可知，再循环工程的数量大幅增加；电灯、引擎技术等的进步有助于节省能源从而阻止污染。由此可以推断，美国人通过采取一系列的有效措施减少了污染。故选D项。

　　4．【答案】A

　　【解析】推理判断题。根据最后一段可知，25年前几乎没有关于环境的教育课程，而现在几乎每一所学校都有这样的课程，结合最后一句中的“Until we do that, nothing else will change！”可知，在环保问题上，教育尤其重要。

　　Ⅲ.语法填空

　　(2016安徽合肥168中学高三第二次段考)

　　A British teenager, Danny Bowman aged 19 years old, once1.__________ (spend) 10 hours a day taking selfies (自拍)．Now, he is receiving regular treatment to help him deal with his addiction.

　　His addiction started at age 15 and quickly out of control, leading him to attempt to kill himself due to 2.__________ (anxious) that he couldn't take the perfect selfie.3.__________ his worst, he would cut a class three times an hour to take a selfie, eventually 4.__________ (drop) out of school at age 16, at 5.__________point his health started to fall apart, because he would limit 6.__________to an apple and a bowl of rice a day in a bid to be thinner and improve his skin.He also didn't leave his houses for six months due to being unsatisfied with how he looked.7.__________ (worry), his mother had to seek help, which eventually led to him being treated.He is believed 8.__________ (be) Britain's first case.

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