高二英语教材知识点总结及重难点解析Unit13-14.docx

高二英语教材知识点总结及重难点解析Unit13-14重点句型1. life in the oceans range from the tiniest plants all the way up to giants like sharks and whales.2. water is actually quite simple, but the way the water molecule is formed gives water its unique properties.3. they form a polar molecule, that is, one with a slightly positive end and a slightly negative end.4. the salinity of the earth's oceans is about thirty-five parts per thousand, meaning that there are about 35 grammes of dissolved solids and gases in one kilo of water.5. heat capacity is the amount of energy it takes to raise the temperature of a substance by one degree centigrade.6. water, which seems ,so simple and common, is what makes life possible.7. freedom fighters can be found everywhere and they are of all times.8. from the late eighteenth century to well into the nineteenth century different people struggled for their rights. 重点词汇1. sailor n. 水手2. transport n. & vt. 运输3. range vi.& n. 变动4. hydrogen n. 氢5. oxygen n. 氧气6. relative adj. 相对的7. solid n. 固体8. freezing adj. 冰冻的9. pure adj. 纯净的10. relationship n. 关系11. float v. 漂移12. decrease vi. 变小13. centigrade adj. 摄氏温度的14. absorb vt. 汲取15. stable adj. 稳定的16. steady adj. 平稳的17. trust vt. 信任18. nursery n. 保育院19. freedom n. 自由20. civil adj. 国内的，公民的21. murder vt. & n. 谋杀22. revolution n. 革命23. slavery n. 奴隶制24. soul n. 灵魂25. arrest vt. 逮捕26. race n. 人种；赛跑27. marriage n. 结婚28. forbid vt. 禁止，不许29. political adj. 政治的30. demand vt. & n. 要求31. lawyer n. 律师32. act n. 法令33. politics n. 政治34. religion n. 宗教35. independence n. 独立36. abolish vt. 废除37. chapter n. 篇 重点短语1. benefit from 从得益2. all the way 始终3. take advantage of 利用4. give off 释放5. a variety of 种类繁多的6. put.in prison 把投入监狱7. join hands 联手8. set an example to 为树立榜样9. from then on 从那时起10. start with 以起先11. regardless of 不顾12. at first sight 乍一看13. call in 召集 交际用语1. what is it that makes the ocean such a great place to live?2. the nutrients is whatever falls into the ocean will quickly become available to other living things.1/21