Question

【题目】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Earth Day is a yearly event celebrated on April 22. Various activities【1】( hold ) worldwide to show support for environmental protection. Here is a brief history of【2】event.

In the 1960s, Americans were becoming aware of the effects of pollution【3】the environment. In 1969, Senator (参议员) Gaylord Nelson,【4】( consider )one of the leaders of the modern environmental movement, developed the idea of Earth Day. His idea really raised【5】(aware )about the environment. On April 22, 1970, over 20 million people turned up for the first Earth Day. They believed it was important【6】( keep ) the planet safe.

In 1990, Earth Day went global, with 200 million people in over 140 nations 【7】( participate ). In 2000, Earth Day focused on clean energy and involved hundreds of millions of people in 184 countries and 5000 environmental【8】( group ). Activities ranged from a traveling to a gathering of hundreds of thousands of people at the National Mall in Washington, D. C. Today, the holiday is a global celebration【9】is sometimes extended (延长) into Earth Week, a full seven days of events focusing on green living. In 2018, more than 1 billion people were involved in Earth Day activities, making it one of the【10】(large)events in the world.

Answer 1

【答案】

【1】are held

【2】the

【3】on/upon

【4】considered

【5】awareness

【6】to keep

【7】participating

【8】groups

【9】that/which

【10】largest

【解析】

本文是一篇说明文，介绍了地球日的历史与发展。

【1】考查时态语态。句意：世界各地都举办各种活动来支持环境保护。陈述的是客观事实，Various activities与 hold之间是被动关系，所以用一般现在时的被动语态，主语为Various activities，谓语动词用复数形式，故填are held。

【2】考查定冠词。句意：以下是这一事件的简要历史。此处特指Earth Day，应该用定冠词，故填the。

【3】考查介词。句意：20世纪60年代，美国人开始意识到污染对环境的影响。effects on/upon是固定搭配，表示“对……的影响”，故填on/upon。

【4】考查非谓语动词。句意：1969年，被认为是现代环境运动领袖之一的盖洛德纳尔逊参议员提出了地球日的概念。Gaylord Nelson与consider之间是逻辑上的动宾关系，表示被动，用过去分词作后置定语，故填considered。

【5】考查名词。句意：他的想法确实提高了人们对环境的认识。作动词raised的宾语用名词，故填awareness。

【6】考查非谓语动词。句意：他们认为保护地球安全很重要。分析句子结构可知，it为形式主语，用不定式作真正的主语，故填to keep。

【7】考查非谓语动词。句意：1990年，地球日走向全球，140多个国家的2亿人参与其中。此处为“with+宾语+宾补”的复合结构，people in over 140 nations与participate之间是逻辑上的主谓关系，表示主动，用现在分词作宾语补足语，故填participating。

【8】考查名词复数。句意：2000年，地球日以清洁能源为主题，涉及184个国家和5000个环境组织的数亿人。5000修饰可数名词复数，故填groups。

【9】考查定语从句。句意：如今，这个节日是一个全球性的庆祝活动，有时会延长为地球周。

此处为定语从句，关系词指代先行词a global celebration并在从句中作主语，故填that/which。

【10】考查形容词最高级。句意：2018年，超过10亿人参与了地球日活动，使之成为世界上规模最大的活动之一。one of后的名词通常用形容词最高级修饰，故填largest。