(1)against prep. 反对,违反#[E'genst] prep. We are destroying our best fighters against pollution. 
(2)agree v. 赞同#[E'gri:] v. Everyone in our team agrees to the point.
(3)air conditioners n. 空调#['eE(r) kEn'dIS'EnE(r)] n. Trees are natural air conditioners.
(4)alive adj. 活着的 近: living adj. 活的 反: dead adj. 死的#[E'laIV] adj. Trees make oxygen to keep animals alive.
(5)azateas n. 杜鹃 近: cuckoo n. 杜鹃鸟#[e'zeIlIE] n. The best-known flowers in Shenzhen are azateas.
(6)be interested in 对...感兴趣#[bi: 'Intristid in] adj. Doctor Ray is very interested in trees.
(7)beat v. 打 近: hit v. 打#[bi:t] v. Don't beat the drum. It's very noisy.
(8)bite v. 咬 近: gnaw v. 咬#[baIt] v. Themouse bite a hole in the bag.
(9)breath v. 呼吸#[bri:D] v. I enjoy breathing fresh air.
(10)burn v. (使)烧毁#[bE:n] v. We cut down and burn a lot of trees.
(11)chemical n. 化学物质 chemistry n. 化学#['kemIkl] n. Trees can produce a chemical to make their leaves taste bad to protect themselves.
(12)collect v. 收集,搜集 gather v. 集合,聚集#[kE'lekt] v. Judy is collecting some facts for the project.
(13)communicate with#[kE'mju:nIkeIt wID] v. Trees are communicating with one another but we don't know how.
(14)communicate v. 传达,传递 transfer v. 传递,转移#[kE'mju:nIkeIt] v. Trees are communicating with one another but we don't know how.
(15)container n. 容器#[kEn'teInE(r)] n. Please put the water into the container.
(16)cool v. 冷却 cooling adj. 冷却(的)#[ku:1] v. The rain has cooled the air.
(17)cut down v. 砍倒#[kVt daun] v. We cut down and burn a lot of trees every year.
(18)destroy v. 摧毁,破坏 damage v. 伤害,破坏#[dI'strOI] v. We are destroying our best fighters against pollution. 
(19)dig v. 挖#[dIg] v. The workers are digging holes for planting trees.
(20)doctor n. 博士,医生#['dAktE(r)] n. Mr Smith is a Doctor of Law.
(21)end n. 末端 bottom n. 底部,尽头,末端#[end] n. The rubber on the end of your pencil comes from trees.
(22)fight v. 斗争#[faIt] v. Trees help fight the air pollution. 
(23)fit v. 适合 suit v. 适合#[fIt] v. These shoes don't fit my feet.
(24)fresh adj. 新鲜的,无经验的,淡水的,清新的#[freS] adj. The only food they had were two cans of preserved turnips, no fresh water.
(25)give out v. 发出,放出 give off v. 发出#[gIv Eut] v. Trees can give out oxygen for us to breathe.
(26)harmful adj. 有害的#['hA:mfl] adj. Smoking is harmful to health.
(27)heel n. 后跟#[hi:1] n. There is a hole in the heel of one of your socks.
(28)in danger 处境危险#[In danZE] adj. Trees are in danger.
(29)in order of 以...的顺序#[In O:DE Ov] adv. Please arrange the ideas in order of importance.
(30)insect n. 昆虫#['Insekt] n. When insects attack a tree, it can warn its neighbours.
(31)interview v. 采访,面谈#[IntEvju:] v. We are now going to interview the headmaster.
(32)join v. 连接,加入 connect v. 连接,联合#[dZOIn] v. Some trees can join their roots together underground.
(33)leisure n. 空闲,休闲#['leSE(r)] n. There is a new leisure area in the centre of the city.
(34)natural adj. 天然的,自然的#['nQtSrEl] adj. Trees are natural air conditioners.
(35)oxygen n. 氧#['AksIdSEn] n. Trees take harmful gas from the air, and release oxygen into the air.
(36)pass v. 传递 transfer v. 传递,转移#[pA:s] v. Trees can pass information to one another.
(37)plastic adj. 塑料的#['plAstIk] adj. We should stop using plastic bags for shopping.
(38)point n. 观点,理由#[pOInt] n. His point of view is clear.
(39)pollution n. 污染 pollute v. 污染#[pE'lu:SEn] n. Pollution means the process of making things dirty and unhealthy.
(40)poster n. 海报#['pEustE(r)] n. They put up posters all round the town to advertise the show.
(41)probably adv. 大概,或许 maybe adv. 大概,或许#['prObEblI] adv. John will probably lose his job if he keeps coming late to work
(42)process n. 过程,进程 course n. 过程,经过#['prEuses] n. Pollution means the process of making things dirty and unhealthy.
(43)produce v. 产生#[prE'dju:s] v. Trees can produce a chemical to make their leaves taste bad to protect themselves.
(44)project n. 课题研究 research n. 调查,研究#['prOdSekt] n. She's doing a project on pollution. 
(45)reduce v. 减少 increase v. 增加#[ri'dju:s] v. Trees reduce sound pollution in cities.
(46)underground adv. 在地下#[;VndE'graund] adv. Some trees can join their roots together underground.
(47)unhealthy adj.不健康的,不卫生的 healthy adj. 讲健康的,健壮的#[Vn'helTI] adj. Living conditions in the city's slums are unhealthy.
(48)warn v. 提醒,警告#[wO:n] v. When insects attack a tree, it can warn its neighbours.
