福建省南平市光泽二中九年级英语上册《第二单元》知识点总结

福建省南平市光泽二中九年级英语上册第二单元知识点总结Topic 1短语：1. see sb do/doing sth2. two days later3. my goodness4. smell terrible5. chemical factories6. pourinto7. air/soil/water/noise /light8. do harm to9. pollution10. breathing problems11. do sth. Useful12. influence13. it is+adj+for/of sb to do14. in a bad mood15. write to sb16. see a doctor17. had better18. poan to do19. join the army20. rock music21. midnight22. not all /both23. in noisy conditions24. quite a few25. hearing loss26. it is said /reported that27. in pubic28. enviornmental problems29. no better than30. be bad ofr31. with the increase of population32. putinto33. high blood pressure34. in strong light35. greener people36. manage to do二、语法要点：现在完成时与for或since连用时动词要用延续动词，如果是非延续动词可以用下面的办法来解决：1、用have/has been +adj/adv/prepHe died three years ago.He has been dead ofr three years/since three years ago.The door was opened two hours ago.The door has been open for tow hours /since two hours ago.He left the room yesterday.He has been away for one day/since yesterday.He came to /arrived at /reached /got to Xinhe Middle School three years ago.He has been in Xinhe Middle Shool for three years/since three years ago.He joined the army 3 years ago.He has been in the army for 3 years/since 3 years ago.2、找一个意思相近的延续动词来表达。I bought the book the day before yesterday.I have had the book ofr two days /since two days ago.He borrowed the book two weeks ago.He has kept the book for two weeks /since two weeks ago.1、 谈谈你家乡过去和现在环境的变化（P25）2、 谈谈你家乡有哪些污染以及它们的危害。 Topic 2一、 短语：1. as a result2. protet the environment3. as we know4. here and there5. step on the grass6. care ofr7. even worse8. none of9. in the begginning10. do ones best 11. follow the rules12. better and better13. day by day14. in danger of15. Im sorry to hear that16. cut down17. change into18. stopfrom19. prevent from20. human beings21. althouth22. come into being23. wash the earth away 24. in the northeast of25. cut off26. the ozone layer27. carbon dioxide28. during this period29. millons of30. be helpful to31. escape from32. the greenhouse effect33. the level of the sea34. refer to 35. at the same time36. deal with37. take up二、语法结构：不定代词和副词的用法三、书面表达：1、如何保护环境。（P33）2、 沙漠是怎样形成的？（P34）Topic 3一、 短语：1. environmental protection2. spread the message3. reduce the waste4. both and5. reuse plastic bags6. encourage sb to do7. waste paper and energy8. soft drind cans9. Its a pleasure10. be supposed to 11. fail the exam12. nod/shake the head13. ought to14. turn off15. instead of16. take a taxi17. travel a short distance18. Easier said than done19. Actions speaks louderthan words20. May I have your attention ,please?21. take part in22. on time23. make sure24. make an announcement25. acid rain 26. run a car二、语法结构：Compound se