《2025年自主学习手册辽宁少年儿童出版社八年级英语上册译林版》

一、根据课文内容及首字母提示完成下列短文
The Earth's three major ecosystems: oceans, wetlands, and forests, play important roles in maintaining the (1)balance of our planet.
The ocean, covering around 71% of the Earth's surface, is like the (2)heart of our planet. It is a vast ecosystem that produces about 70% of the Earth's oxygen and is (3)home to countless species. Water from the ocean evaporates, (4)falls on land, and then returns to the ocean, forming an endless cycle.
Wetlands, which (5)cover about 6% of the Earth's land area, are nature's "kidneys." They can (6)store water during heavy rains, prevent floods, and help purify water by removing pollutants. They also (7)provide habitats for about 40% of the world's plants and animals.
Forests, making up nearly a (8)third of the Earth's land area, are often called the "lungs" of the Earth. They take in carbon dioxide and produce oxygen, while also trapping (9)pollutants in the air. These three ecosystems support millions of plants and animals, keeping our (10)planet healthy and vibrant.

答案： 1.balance 2.heart 3.home 4.falls 5.cover 6.store 7.provide 8.third 9.pollutants 10.planet

二、微写作 Why are wetlands so important to the earth? (At least 5-8 sentences)Wetlands are important to the earth for many reasons. They can store water and prevent floods. They also help clean the water by filtering dirt and pollutants. Many animals and plants live in wetlands, so they are important habitats. Wetlands can also control climate by absorbing carbon dioxide. Additionally, they provide food and resources for people. Protecting wetlands is necessary for our planet's health.

答案： Wetlands are important to the earth for many reasons. They can store water and prevent floods. They also help clean the water by filtering dirt and pollutants. Many animals and plants live in wetlands, so they are important habitats. Wetlands can also control climate by absorbing carbon dioxide. Additionally, they provide food and resources for people. Protecting wetlands is necessary for our planet's health.

( ) 1. A
( ) 2. A
( ) 3. C
( ) 4. B
( ) 5. C
( ) 6. A
( ) 7. B
( ) 8. C
( ) 9. B
( ) 10. A

答案： A A C B C A B C B A