Unit 7 The natural world基础默写（Welcome-Reading）-2025-2026学年译林版英语八年级上册

该初中英语学习任务单聚焦“自然世界”主题，涵盖生态系统、海洋、湿地等核心词汇，从词汇默写（如coral, ecosystem）到短语（如half of, be home to），再到句子及语篇默写，构建递进式学习支架，帮助学生逐步夯实语言基础。 资料通过分层默写设计提升语言能力，语篇内容渗透环保意识培养文化意识，习题循序渐进引导学生掌握科学学习方法，有效发展学习能力，助力学生系统构建主题语言知识体系。

Unit 7 The natural world 默写 1 Welcome to the unit～Reading（1） 一、默写下列词汇或汉语意思。 1.coral n. . 2.reef n. . 3.企鹅 n. . 4.ecosystem n. . 5.wetland n. . 6.non - living adj. . 7.pond n. . 8.大约 adv. . 9.prevent vt. . 10.sponge n. . 11.kidney n. . 12.carbon dioxide n. . 13.trap vt. . 14.因此 adv. . 15.lung n. . 16.包括 vt. . 17.气候 n. →气候变化（短语） . 18.容纳；拿着；举行 vt. →举起（短语） . 19.返回，回去，回来 vi. →回家（短语） . 20.贮存 vt. →储存（短语） . 21.起作用；行动 vi. 扮演 vi. & vt. →行动 n. . 22.不幸地；悲伤地 adv. →悲伤的 adj. →开心地（对应词）adv. . 23.吨 n. →大量……（短语） . 24.伤害，损害 vt. →有害的 adj. 二、默写下列短语。 1.……的一半 2.是……的栖息地 3.将水存在…… 4.从……取水 5.发挥作用 6.升上天空 7.掉到地上 8.一直继续下去 9.（使）慢下来 10.构成 11.三分之一的 12.吸入 13.数百万的 14.由……组成 15.而且；另外 16.……的平衡 默写 2 Welcome to the unit～Reading（2） 一、根据汉语提示完成下列句子。（每空一词） 1.草原常位于沙漠和森林之间。 Grasslands often ______ ______ deserts and forests. 2.你了解生态系统吗，戴维？ Do you know ______ ______ ecosystems, David? 3.我知道不同地方的草原是不同动物的家园。 ______ ______ ______ grasslands in different places are home to different animals. 4.沙漠的气候非常恶劣，只有少数动植物能够在那里存活。 The climate in deserts is ______ ______ ______ only a few animals and plants can live there. 5.生态系统可以有不同的规模。 Ecosystems ______ ______ ______ different sizes. 6.你知道这是什么吗？ Do you know ______ ______ ______? 二、课文默写。 The big three: oceans, wetlands and forests An ecosystem includes all 1. ______ things and their environment. Every ecosystem has a 2. ______ to play in keeping nature balanced. Oceans cover 3. ______ 71% of the earth's surface. They produce about 70% of the earth's oxygen. The salt 4. ______ cycles through evaporation, rain, and rivers, acting as the planet's 5. ______ that supports marine life. Wetlands may seem small, but they are powerful. Their plants naturally get 6. ______ of pollution, cleaning water like filters. When heavy rains come, wetlands 7. ______ water like giant sponges, protecting nearby towns from floods. Forests cover nearly a 8. ______ of the earth's land. Trees use their 9. ______ to absorb carbon dioxide and produce oxygen. They also trap harmful things, making the air cleaner. This is why forests are called the earth's "lungs". Together, these ecosystems support millions of 10. ______ and animals. They work like a team to keep the earth healthy. We must protect these natural systems—our planet's survival depends on them. 一、1.珊瑚2.礁3.penguin 4.生态系统 5.湿地6.非生物的7.池塘 8.around 9.防止，阻止: 10.海绵块 11.肾脏12.二氧化碳13.吸收；使落入险境14.therefore 15.肺16.include 17.climate;climate change 118.hold;holdup 19.return;return home20.store;store up 21.act;action22.sadly;sad; happily 23.ton;tons of 24.harm;harmful 二、1.half of 2.be home to 3.keep water in 4.get water from 5.have a role to play 6.rise to the sky 7.fall onto the land 8.go on and on 9.slow down 10.make up 11.a third of 12.take in 13.millions of 14.be made up of 15.what's more 16.the balance of 学科网（北京）股份有限公司 $$