Ⅳ. Read and complete the tasks.
A. Complete the passage with proper words or the proper form of the words given.
Forests cover about 30% of the earth's land surface, and they are also one of the planet's most powerful tools against climate change 1. they take in carbon dioxide and produce oxygen. But every year, large areas of forest are cut down or burned—this 2. (call) deforestation. The main causes include clearing land for farming, logging for wood, and building roads or cities.
Deforestation causes many serious problems. It destroys 3. homes of millions of species. Animals such as tigers and elephants lose 4. (they) living places and food, facing the danger of dying out. It also makes climate change even 5. (bad)—when people cut the trees down, carbon goes into the air, making global warming more serious. Besides, deforestation affects local communities. When forests 6. (appear), these communities lose their way of life. It also leads 7. soil erosion (流失), as tree roots no longer hold the soil in place, and raises the risk of floods and droughts.
8. (luck), governments are creating protected areas and planting trees through reforestation projects, and people are choosing products made from recyclable materials 9. (solve) the problem. Everyone can help by supporting these efforts and learning more about the 10. (important) of forests.
B. What does the underlined word "recyclable" mean in Chinese? Make another word with the same suffix -able.

C. Find a word in the passage to solve the problem of "deforestation", using the knowledge of word formation.

A. 1. because 2. is called 3. the 4. their 5. worse 6. disappear 7. to 8. Luckily 9. to solve 10. importance
B. One possible version: 可循环利用的 unforgettable / reusable / enjoyable / ...
C. One possible version: Reforestation: plant trees again on land where forests were cut down.

【分析】
本题分为三部分：A为完形填空，需结合上下文逻辑、语法规则（时态、词性、固定搭配）填写单词；B为词义猜测与后缀-able的词汇拓展；C为构词法应用，需找到对应“deforestation（森林砍伐）”的解决方法的词汇。解题时先通读全文理解主旨，再逐空分析，最后完成B、C题。
【解析】
A. 1. 前后为因果关系，前句说森林是对抗气候变化的有力工具，后句说明原因（吸收二氧化碳产氧气），故填because；
2. 主语this指代“森林被砍伐或烧毁”，是动作的承受者，用一般现在时被动语态，故填is called；
3. 此处特指“数百万物种的家园”，表特指用定冠词the；
4. 修饰名词living places，用形容词性物主代词their；
5. even修饰比较级，bad的比较级为worse；
6. 结合语境“当森林消失时”，填动词disappear；
7. 固定搭配lead to（导致），故填to；
8. 修饰整个句子，用副词Luckily；
9. 不定式表目的，“人们选择可回收材料的产品来解决问题”，故填to solve；
10. the后接名词，important的名词形式为importance。
B. “recyclable”意为“可循环利用的”；后缀为-able的单词如unforgettable、reusable等（任选其一即可）；
C. 由构词法可知，“deforestation（森林砍伐）”的解决方法是“重新造林”，对应词汇为reforestation。
【答案】
A. 1. because 2. is called 3. the 4. their 5. worse 6. disappear 7. to 8. Luckily 9. to solve 10. importance
B. 可循环利用的；unforgettable（答案不唯一）
C. reforestation
【知识点】
完形填空（英语）、词义猜测、构词法
【点评】
本题综合考查英语基础知识，涵盖完形填空的逻辑与语法应用、词汇词义理解及构词法，需学生具备一定的语篇理解和词汇积累能力，整体难度适中。
【难度系数】
0.6