1、Uint 21 Look after the world,Study aims Study vocabulary about sources of energy and about the marine life; Revise giving advice and suggestions with modal verbs; Study the continuous future; Study the first conditional further; Study the perfect infinitive used with reporting verbs in the passive.,
2、Session 1: Greenpeace Launches Renewable Energy Global Tour,1.launch:v. 开始；发动 They launched a new attack at dawn. 黎明时他们发起了一次新的进政。 2.lead up to:引导到；把一直引到；导致 direct the conversation towards He led up to the question of money. 他把话题引到钱的问题上去。 3. renew:1) vt. 恢复；更新；复生 The players energy was renewed after
3、a few moments of rest. 休息片刻之后，运动员的精力恢复了。renew ones health 恢复健康 2) vt. 去旧换新；补充 She renewed the collar of my shirt. 她把我衬衫的领子换上新的。 Renewable:可以更新的，可以重复的,4. Energy: 1) n. 精力 He has much energy. 他精力充沛。 2) n. 能，能量 The light energy comes from the sun. 光能来自太阳。 atomic energy 原子能 5. Supply:v. 供应；提供 We supplie
4、d them with money and clothes. 我们供应他们钱和衣服。 Canada and Australia supply England with food. 加拿大和澳大利亚向英国供应食品。 6. Challenge: vt. 向挑战,要求 He challenged anyone to beat him. 他向任何要打败他的人挑战。,n. 挑战,决斗 a challenge to violence 向暴力挑战accept take up a challenge 接受挑战,应战 7. Conduct: 1) n.U 行为；操作 Many pupils in this cl
5、ass got prizes for good conduct. 这个班的许多学生因为操行好而得了奖。 bad (good) conduct 品行不端（端正） 2) vt. 引导；带领 ;管理；指挥 He was conducted through the museum. 他在指引下参观了整个博物馆。 Who conducts this orchestra? 谁指挥这个乐队？ 8. replace: vt. 放回原处；复置 You have to replace the books on the shelves before you leave. 你离开之前必须把书放回书架上。,vt. 替换；
6、取代；轮换 More new machines will be installed to replace the old ones. 将安装更多新机器来代替旧机器。 9. competitive: adj. 竞争的,竞争性的 a competitive price 竞争价格 competitive spirit 竞争心 compete:v. 比赛；竞争 compete against sb. 与某人对阵 actively compete with sb与积极地竞争 10. costly:adj. 价值高的；昂贵的 expensive The house is too costly for us
7、 to buy. 这房子太贵了，我们买不起。 a costly fur coat 一件昂贵的皮大衣,11. generation: 1) n. 世代；一代 The younger generation grows up rapidly. 年轻一代茁壮成长。 2) n. 发生；产生 the generation of electricity by steam or water power 用蒸汽或水力发电 12. community:n. 团体；社区；公众 the business community 实业界 a religious community 宗教团体 the world commun
8、ity 国际社会 13. reject:vt. 拒绝；拒不接受 She rejected my offer of help. 我主动提出给予帮助，她拒绝了。,vt. 丢弃 He rejected the rotten eggs. 他扔掉了坏鸡蛋。 14. demand: vt. 要求 We demand an apology from her. 我们要求她道歉。 He demanded to see the editors. 他要求见编辑。 n. 要求，需求 His demand is not reasonable. 他的要求不合理。,Language Focus,将来进行时 1) 概念：表示
9、将来某时进行的状态或动作，或按预测将来会发生的事情。 Shell be coming soon. Ill be meeting him sometime in the future. 2）常用的时间状语 Soon, tomorrow, this evening，on Sunday, by this time，tomorrow, in two days, tomorrow evening By this time tomorrow, Ill be lying on the beach. 情态动词表示建议： 1、had better had better表示“最好“，其缩写为“ d better
10、“，表示“有义务做某事“。 He warned me that I had better not say anything about it. 他警告我对此事最好只字不提。 had better表示提出建议、劝告或命令等，含有“应该做某事“之意，一般适用于对晚辈、平辈。,had better否定形式为had better not，疑问句中had better的否定形式有两种： Hadnt + 主语+ better + 动词原形；Had + 主语+ better not +动词原形。例如： Hadnt you better go with them? 你跟他们去不是更好吗？ Had we bet
11、ter not go? 我们不去不是更好吗？2.should , ought to should作情态动词，表示劝告、建议，多指主观上有责任、有义务做某事，作 “应该“解，语气比ought to要弱。例如： You should keep your promise. 你应该履行诺言。 ought to表示客观上有责任、有义务做某事或非常可能的事，语气较强。其否定形式为ought not to。例如： You ought to drink plenty of water. 你应该大量喝水。,should, ought to用于疑问句时，should直接放在主语前，而ought 变疑问句时则把ou
12、ght放在主语前，to放在主语后的动词前。例如： Should I open the window? 我应该打开窗户吗？ -Ought he to go? 他应该去吗？ -Yes, I think he ought to. 是的，我想他应该.,Session 2,1. species: n. 动植物类别 This is a rare species of rose. 这是一种罕见的玫瑰。 2. incredible:adj. 难以置信的；不可思议的 difficult to believe Michael told us an incredible story . 迈克尔给我们讲了一个令人难以
13、置信的故事。 3. fully:adv. 完全地，十分 I fully agree with you. 我完全同意（你的意见）。totally, completely 4. up to:及得上 equal to 5. equivalent:adj. 等值的，相等的 Silence is sometimes equivalent to an allowance. 缄默有时等于允许。,pare:vt. 比较；对照 Compare your answers with those at the back of the book to see if they are right. 把你的答案同书后面的答
14、案对照一下，看看是否正确。 7. average: adj. 平均的 The average age of the boys in this class is twelve. 这个班学生的平均年龄为十二岁。 n. 平常；一般标准 His pay is below /above the average. 他的工资低于/高于一般水平。 8.dangerendangerendangered The fire spread endangering several nearby homes. 火势蔓延危及附近的几栋房屋。,9. measure:n.C 措施，办法 We must take the right measures or we shall fail. 我们一定要采取正确的措施，不然就会失败。 Plan, method,means,
