一、根据句意，用括号中所给词的适当形式填空。
1. Trees are the (lung) of the earth and everyone should protect them.
2. (environment) experts tell us how to protect our planet.
3. Beautiful (package) can help to sell products well.
4. Planting more trees can slow the (process) of desertification (荒漠化).
5. People in the northwest of China collected rain and (reuse) it in the past.

1. lungs 2. Environmental 3. packaging 4. process 5. reused

【分析】本题为用所给词的适当形式填空，解题思路是：先分析每个空格在句中充当的成分（如主语、定语、谓语等），确定所需词性；再结合语境、语法规则（如名词单复数、动词时态、形容词修饰名词等）对所给词进行形式变化，得出答案。
【解析】1. 空格在“the + 名词”结构中，主语为复数名词trees，对应“肺”需用复数形式，故填lungs。
2. 空格修饰名词experts，需用形容词，environment的形容词形式为environmental，且位于句首首字母大写，故填Environmental。
3. 空格在句中作主语，需用名词形式，package表示“包装”时的名词形式为packaging，符合句意，故填packaging。
4. 空格在定冠词the后，需接名词，此处表示“荒漠化的进程”，用单数形式即可，故填process。
5. 空格与并列谓语collected时态一致（一般过去时），需用动词的过去式，reuse的过去式为reused，故填reused。
【答案】1. lungs 2. Environmental 3. packaging 4. process 5. reused
【知识点】词性转换、名词的数、动词时态
【点评】本题考查英语基础词汇的形式运用，涉及词性变化、句子成分分析及时态一致等知识点，是初中英语的基础题型，难度适中，能有效检验学生对核心词汇的掌握情况。
【难度系数】0.7

二、阅读理解。
Earth Hour is an amazing event that takes place near the end of March every year. It calls on people worldwide to turn off unnecessary lights for one hour.
The very first Earth Hour began in Sydney in 2007. Back then, more than 2.2 million people in the city joined by turning off their lights. This simple but powerful act was a way to show that they cared about climate change. As the years passed, it has grown into a big
global movement. At 8:30 p.m. local time on the last Saturday of March, thousands of cities, like Beijing, London, Rome and New York, took part in this meaningful event. Not only cities, but also famous buildings like the Empire State Building in New York and the Golden Gate Bridge in San Francisco went dark during Earth Hour.
Why do we do Earth Hour? It’s not just about saving a bit of electricity for one hour, but a way to raise people’s awareness. When we turn off those lights, we think about our planet’s future. We start to understand that even small actions can make a big difference. Earth Hour also reminds us of making changes in our daily life. Maybe we’ll choose to use less energy, recycle more, or walk instead of driving cars for short distances.
Now, we are facing serious environmental challenges. Earth Hour is a bright spot（点）for us. It brings people together, whether young or old, to say, “We care about our planet.” It also reminds us that we are all responsible for protecting the environment. So, every year, when Earth Hour comes, let’s turn off the
lights, think about our Earth, and make a promise to do better for the future. I believe we can create a greener and better future for ourselves and our children.
根据材料内容选择最佳答案
()1. Where was the first Earth Hour held?
A. In Beijing.
B. In London.
C. In Sydney.
D. In New York.
()2. What time did lights go off during the Earth Hour?
A. At 8:30 p.m. local time.
B. At sunset time.
C. At 7:30 a.m.
D. At midnight.
()3. What does the underlined word “awareness” mean in Paragraph 3?
A. The ability to move quickly.
B. The state of knowing about a situation or fact.
C. The feeling of being very tired.
D. The act of making something beautiful.
()4. Which of the following is NOT TRUE about Earth Hour?
A. It reminds people of taking action like recycling in daily life.
B. Earth Hour aims to raise the awareness about climate change.
C. Cities worldwide join in Earth Hour.
D. People turn off lights only to save electricity for one hour.
()5. What’s the purpose of the passage?
A. To introduce different world landmarks.
B. To tell the history of Sydney’s environmental efforts.
C. To explain what Earth Hour is and why it matters.
D. To describe how to save electricity at home.

1. C 2. A
3. B 结合语境，“地球一小时”活动的目的是让人们了解、意识到气候变化等环境问题，所以awareness是指“对某问题的了解和意识”。
4. D
5. C 文章介绍了“地球一小时”活动的时间、起源、参与情况，以及它对环保意识提升、推动日常环保行动等的意义，即解释了“地球一小时”是什么和其重要性。

【分析】
本题为英语阅读理解题，共5道小题，分别考查细节理解、词义猜测、细节判断、主旨大意。解题思路：先通读全文把握“地球一小时”的核心内容，再针对每道题的关键词回到原文定位信息；细节题直接匹配原文与选项；词义猜测题结合上下文语境推断；细节判断题逐一核对选项与原文表述；主旨题归纳全文核心，从而得出答案。
【解析】
1. 第1题：题干问首次地球一小时的举办地，原文第二段明确提到“The very first Earth Hour began in Sydney in 2007”，对应选项C。
2. 第2题：题干问地球一小时关灯时间，原文第二段指出“At 8:30 p.m. local time on the last Saturday of March”，对应选项A。
3. 第3题：划线词“awareness”所在句意为“地球一小时不只是省电，更是提升人们的……”，结合后文“思考地球未来”，可知是对环境问题的了解，对应选项B。
4. 第4题：题干选错误项，原文第三段说明地球一小时“不只是省电”，选项D“仅为省电一小时”与原文不符，对应选项D。
5. 第5题：文章介绍了地球一小时的起源、参与情况及环保意义，核心是解释“地球一小时是什么、为什么重要”，对应选项C。
【答案】
1.C 2.A 3.B 4.D 5.C
【知识点】
英语阅读理解（细节理解）、英语阅读理解（词义猜测）、英语阅读理解（主旨大意）
【点评】
本题为英语基础阅读理解题，主题贴近环保常识，考查学生快速定位原文、语境猜词、判断细节及归纳主旨的能力，整体难度较低。
【难度系数】
0.8