Question

【题目】阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

This week, Chinese and international pollution management professionals are gathering in Beijing for a series of events as part of a Pollution Management and Environmental Health Business Week 【1】 (host) by the Ministry of Environmental Protection and Beijing Environmental Protection to share their experience in air quality management. These events are particularly time as the cost from air pollution is becoming 【2】 (increase) apparent across the world, especially for low and middle-income countries.

Over the past five years, the Chinese government has been focusing on addressing PM2.5, 【3】 is the most 【4】 (criticize) pollutant for public health. In 2012, the government issued stricter standards for ambient PM2.5 concentration, which went into 【5】 (affect) in January 2016 and are comparable to standards 【6】 (define) by the World Health Organization. The thirteenth Five-Year Plan (2016-2020) has set 【7】 target of reducing PM2.5 concentration 【8】 18 percent. This is the first time PM2.5 targets 【9】 (include) in a five-year plan. China is establishing the most extensive air monitoring system in the world, 【10】 (cover) 338 cities nationwide.

Answer 1

【答案】

【1】hosted

【2】increasingly

【3】which

【4】critical

【5】effect

【6】defined

【7】the

【8】by

【9】have been included

【10】covering

【解析】

【文章大意】本文介绍了中国和国际污染管理的专业人士聚集在北京分享他们在空气质量管理的经验，并讲述了近几年中国致力于治理空气中的污染物PM2.5的情况。

【1】hosted 考查非谓语动词。句意：作为由环保部和北京环保局共同举办的污染治理和环境保护周的一部分，host主办和前面名词是被动关系，故填hosted。

【2】increasingly 考查副词。本句符合：be+ adv. + adj.结构，句意：治理空气污染的成本越来越明显，即副词修饰形容词，故填increasingly。

【3】which 考查定语从句。 句意：中国政府一直致力于处理PM2.5，这是对于公众健康来说最该受批评的污染物。根据逗号后面是从句，先行词是PM2.5，从句中少主语，只能用which，意为：这，故填which。

【4】critical 考查形容词。句意：这是对于公众健康来说最该受批评的污染物。根据形容词修饰名词，criticize＂批评＂为动词，其形容词为：critical批评的，谴责的。故填critical。

【5】effect 考查名词。句意：这于2016年开始生效。go into effect为固定短语，意为＂(法律、决议等)被实施；生效＂，故填effect。

【6】defined 考查非谓语动词。句意：这可与世界卫生组织界定的标准相媲美。根据句意和句中所少的成分，确定此空作定语，又因define与standards之间为被动关系，所以要用过去分词形式，故填defined。

【7】the 考查冠词。句意：第十三个五年计划已经确立了要把PM 2.5降低18%的目标，根据句意可知这里是特指，故填the。

【8】by 考查介词。句意：第十三个五年计划已经确立了要把PM 2.5降低18%的目标，表示降低的程度要用介词by。故填by。

【9】have been included 考查动词时态和语态。固定句型：This is the first time...后面的从句要用现在完成时，又因PM 2.5与include之间为被动关系，因此要用现在完成时的被动语态形式，故填have been included

【10】covering 考查非谓语动词。逗号前是一个简单句，因此此空应该是非谓语，由句意＂中国已经确立了在世界上最广泛的检测系统，涉及全国338个城市＂确定这里为主动关系，要用现在分词形式。故填covering。