Unit 7 单元重点词组
1. 珊瑚礁__________________________
2. 北极熊和企鹅__________________________
3. 位于沙漠和森林之间__________________________
4. 昼夜温差__________________________
5. 包括所有生物和非生物__________________________
6. 小池塘__________________________
7. 恶劣的气候__________________________
8. 保持 A 和 B 之间的平衡__________________________
9. 地球上一个非常大的生态系统__________________________
10. 覆盖地球表面约 71%________________________
11. 扮演一个角色__________________________
12. 容纳大量盐水__________________________
13. 回到大海__________________________
14. 持续不断__________________________
15. 地球的“心脏”________________________
16. 帮助消除污染__________________________
17. 防洪__________________________
18. 产生氧气__________________________
19. 像巨大的海绵一样储存水__________________________
20. 承担地球“肾脏”的功能__________________________
21. 占地球陆地面积的近三分之一__________________________
22. 从空气中吸收二氧化碳__________________________
23. 把有害物质吸收进它们的叶子里__________________________
24. 供养数百万植物和动物__________________________
25. 减缓气候变化__________________________
26. 数百万吨塑料__________________________
27. 破坏海洋生态系统的平衡__________________________
28. 为当地野生动物建造更好的家园__________________________
29. 本课的主题__________________________
30. 不少沙漠植物__________________________
31. 温暖、明亮、嘈杂__________________________
32. 导致珊瑚缓慢死亡__________________________
33. 地球上最大的珊瑚礁系统__________________________
34. 严重破坏海洋环境__________________________
35. 世界上最重要的湿地之一__________________________
36. 为许多野生动物提供食物和庇护所__________________________
37. 在中国东北__________________________
38. 一些珍稀鸟类__________________________
39. 短暂停留__________________________
40. 在白天__________________________
41. 为了有更多的空间用于农场和建筑__________________________
42. 导致野生动物生存空间减少__________________________
43. 减少参观湿地的游客数量__________________________
44. 创建盐城自然保护区__________________________
45. 制定法律__________________________
46. 建立__________________________
47. 使湿地免受污染__________________________
48. 保持生态系统平衡__________________________
49. 破坏森林中的生态系统__________________________
50. 你说得对！__________________________
51. 教育和知识__________________________
52. 来自工厂和房屋的废水__________________________
53. 环保产品__________________________
54. 清理海滩__________________________
55. 给我们提供食物__________________________
56. 杀死海洋生物__________________________
57. 解决问题__________________________
58. 加入环保团体__________________________

coral reefs
; polar bears and penguins
; lie between deserts and forests
; the difference in temperature between day and night
; include all living and non-living things
; small ponds
; the awful climate
; keep the balance between A and B
; a very large ecosystem on Earth
; cover about 71% of the Earth's surface
; have a role to play
; hold plenty of salt water
; return to the ocean
; go on and on
; the "heart" of the Earth
; help get rid of pollution
; prevent floods
; produce oxygen
; store water like a giant sponges
; act like the “kidneys” of the earth
; cover nearly a third of the earth's land area
; take in carbon dioxide from the air
; trap harmful things in their leaves
; support millions of plants and animals
; slow down climate change
; millions of tons of plastic
; harm the balance of the ocean ecosystem
; build a better home for local wildlife
; the topic of this class
; quite a few desert plants
; warm, bright and noisy
; cause coral to die slowly
; the largest coral reef system on Earth
; greatly damage the ocean's environment
; one of the world's most important wetlands
; provide food and cover for a lot of wildlife
; in the north-east of China
; some rare birds
; for a short stay
; in the daytime
; in order to have more space for farms and buildings
; lead to less space for wildlife.
; reduce the number of tourists visiting wetlands
; create Yancheng Nature Reserve
; make/create laws
; keep the ecosystem balanced
; destroy the ecosystem in forests
; You said it!
; education and knowledge
; wastewater from factories and houses
; environmentally friendly products
; clean up the beach
; provide us with food
; kill sea life
; solve the problems
; join an environmental group
; set up
; keep wetlands free from pollution