U1 Trees
1. on the left/right 在左边/右边
2. average age 平均年龄
3. the action of making things dirty and unhealthy 让东西变得脏且不健康的行为
4. help fight (against) air/water/noise pollution 帮忙与空气/水/噪声污染作斗争
5. best-known magnolia trees 著名的白玉兰
6. large and sweet-smelling flowers 又大又芬芳的花朵
7. be known as the city flower of Shanghai 以上海市花而著称
8. pollution fighter 环保卫士
9. natural air-conditioner 天然空调
10. collect some facts for a class project 为一个班级课题收集一些事实
11. a project on pollution 一个关于污染的课题
12. interview Doctor Ray about trees 就有关树木的问题采访雷博士
13. be interested in trees 对树感兴趣
14. the biggest and oldest living things on the Earth 地球上最大且最古老的生物
15. What good are trees? 树木有什么好处呢？
16. make streets more beautiful and less noisy 美化街道和减少噪音
17. What else can they do? 它们还能做什么呢？
18. the rubber on the end of your pencil 你铅笔末端的橡皮
19. come from trees 来自于树木
20. I suppose that… 我想，……
21. enjoy breathing pure, cool air 享受呼吸纯净、凉爽的空气
22. thank trees for that 为此感谢树木
23. take harmful gases from the air 带走空气中的有害气体
24. release oxygen back into the air 释放氧气到空气中
25. one and a half hectares 1.5公顷
26. produce enough oxygen 产出足够的氧气
27. keep your whole class alive and healthy 保持你们全班有生气与健康
28. for a whole year 一整年
29. Trees cool the air as well as clean it. 树木在净化空气的同时也降温。
30. do the job of 15 air conditioners running almost all day 完成15台空调运行几乎一整天的工作
31. begin to understand them 开始了解它们
32. attack a tree 攻击一棵树
33. warn its neighbours 警告它的邻居们（附近的树木）
34. protect themselves by producing a chemical 用产生一种化学物质的方法来保护它们自己
35. make their leaves taste nasty 使它们的叶子变得难以下咽
36. join their roots together underground 在地下把它们的根部连接起来
37. pass food and water to each other 互相输送食物和水分
38. communicate with one anther 相互交流
39. be in danger 处于危险之中
40. cut down and burn millions of trees 砍伐、烧毁数以百万计的树木
41. replace hardly any of them 几乎不替换它们当中的任何一些
42. destroy our best fighters against pollution 摧毁我们最好的环保卫士
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43. take part in a tree-planting campaign 参与一次植树运动
44. attract people to join 吸引人们加入
45. make a poster 制作一张海报
46. ways to fight pollution 对抗污染的方法
47. put rubbish in rubbish bins 把垃圾扔进垃圾桶里
48. stop using plastic bags for shopping 购物时不再使用塑料袋
49. stop factories and cars from producing harmful gases 阻止工厂和汽车排放有害气体
50. work hard 努力工作
51. clean the air 净化空气
52. cool our cities 给我们的城市降温
53. remove dust 除尘
54. produce oxygen we breathe 产出我们呼吸所需的氧气
55. reduce sound pollution for large urban areas 为大城市地区减少噪声污染
56. add beauty to cities 为城市增添美感
57. Without…, … would… 如果没有了……，……就会……
58. be too hot to live on 太热以至于无法生活
59. provide food and shelter for both humans and animals 为人类和动物提供食物和居所
60. supply material for houses, furniture and paper products 提供建造房屋建筑、家具和纸制品的材料
61. provide important ingredients for medicines that cure illness 为治疗疾病的药物提供重要原料
62. in the last/next 200 years 在过去的/将来的200年里
63. destroy more than half of the trees 摧毁了一半以上的树木
. make a difference 做出改变
65. take care of the trees 照顾树木
66. help protect our environment 帮忙保护我们的环境
67. join us in this project 加入我们的这项计划
68. find out more about us 了解更多关于我们的信息
69. have lots of fun with us 与我们共度快乐的时光
70. care about trees 关心树木
71. fill in the membership form 填写入会登记表
72. make a promise 承诺
73. sign up for membership 申请会员资格
74. date of birth 出生日期
75. zip/postal code 邮编
76. know the importance of protecting trees 知道保护树木的重要性
Key points
1. fight (against) air/water/noise pollution 2. a project on sth.
3. interview sb. about sth.
4. be interested in sth.
5. What good is/are…?
6. make sb./sth. +adj.
7. come from
8. I suppose that…
9. enjoy doing sth.
pollution fighter
10. thank sb. for sth.
11. take… from…
12. release… into…
13.keep sth.+adj.
14. as well as
15. do the job of
16. warn sb. (not) to do sth.
17. protect sb. by doing sth.
18. join sth. together
19. pass sth. to sb.
20. communicate with sb.
21. be in danger
22. cut down sth.
23. replace sth.
24. destroy sth.
25. take part in sth.
26. stop doing sth.
27. stop sb. from doing sth.
28. produce sth.
29. reduce sth.
30. add sth. to sth.
31. Without…, … would…
32. too … to …
33. provide sth. for sb.
34. supply sth. for sb.
35. destroy sth.
36. make a difference
37. take care of sb.
38. join sb. in sth.
