护方面所取得的成就.
1．According to Anderson,before 1970,Americans had little idea about_C__. A．the social movement B．recycling techniques C．environmental problems D．the importance of Earth Day
解析：细节理解题.根据第一段第二句可知在1970年以前,美国人对于环境问题知之甚少.let alone意为“更不必说”.
2．Where does the support for environmental protection mainly come from?_A__ A．The grass－roots level. B．The business circle. C．Government officials. D．University professors.
解析：细节理解题.根据第二段第二句中and especially millions of grass－roots Americans可知,对于环保的支持主要来自于基层民众.
3．What have Americans achieved in environmental protection?_D__ A．They have cut car emissions to the lowest. B．They have settled their environmental problems. C．They have lowered their CO levels in forty cities. D．They have reduced pollution through effective measures.
解析：推理判断题.根据第三、四两段的数据例证可推断出,美国人已经通过有效的措施降低了污染.根据第三段第一句可知A项过于绝对；根据第三段第三句可知B项与文章意思相悖；根据第三段第二句可知一氧化碳排放超标的城市由40个减少到了9个,故C项错误.
4．What is especially important for environmental protection according to the last paragraph?_A__ A．Education. C．Green living.
B．Planning. D．CO reduction.
解析：细节理解题.根据文章最后一段,特别是education programs for environment(环境教育培训)可知答案选A.
Ⅵ.短文改错导学号 49152093
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文.文中共有
10处语言错误,每句中最多有两处.错误涉及单词的增加、删除或修改.
增加：在缺词处加一个漏字符号(∧).并在其下面写出该加的词. 删除：把多余的词用斜线(﹨)划掉.
修改：在错的词下画一横线,并在该词下面写出修改后的词. 注意：1 每处错误及其修改均仅限一词； 2 只允许修改10处,多者(从第11处起)不记分.
Ten years ago, I had worked as a night guard in a factory. On a rainy night, all the lights of a factory went out all of a sudden. I rushed out and could see nothing. Lucky for me, the warning system was directly connected by the police station. Three or four minutes late, four police car arrived at the factory gate.They searched the factory carefully, tried to find something unusual. In the end,I told that the rain had brought about the short circuit,that caused the accident.
答案：
Ten years ago, I had worked as a night guard in a factory. On a rainy night, all the lights ofa factory went out all of a sudden. I rushed outand could see nothing.Lucky for me, the thebutLuckilywarning system was directly connectedby the police station. Three or four minuteslate, four
tolaterpolicecar arrived at the factory gate.They searched the factory carefully,tried to find something
carstryingunusual. In the end,I ∧told that the rain had brought about the short circuit, that caused the
waswhichaccident.
[高中英语]2017年春人教版英语必修五课时作业：Unit 1 section 3
