仁爱版九年级初三英语上册各单元重要知识点汇总Unit1 The Changing World Topic1 Our country has developed rapidly.【重点短语和句型】暑假过得愉快1. have a good summer holiday 回来......从2. come back from 去过3. have/has been to 去了4. have/has gone to ... 再也不5. not...any more 照相6. take photos 顺便问一下7. by the way 参加8. take part in 全世界9. around/all over/throughout the world 告诉某人关于某事10. tell sb. something about... 艰苦的生活/过着幸福11. have/live a happy/hard life 详细描述12. describe...in detail ... 支持13. give support to 亲眼看见14. see...oneself 与15. keep in touch with 保持联系... 遥远的16. far away ... 各种各样的17. kinds/sorts of ... 而且...不仅18. not only...but also 取得进步19. make progress 多于20. more than/over 改善/迅速发展21. develop/improve rapidly 告诉某人（别）做某事22.tell sb. (not ) to do sth. 要求某人（别）做某事23. ask sb. (not ) to do sth. 为了做某事24. in order to do sth. 不得不做某事25. have to do sth. 的...对于某人来说做某事是+for sb. to do sth. 形容词It's +26. 为什么不做某事27. why not do sth. 成功地做某事28. succeed/be successful in doing sth. 梦想做某事29. dream about doing sth. 正在做某事/听见某人做/看见30. see/hear sb. do/doing sth.【重点语法】现在完成时现在完成时的基本结构. 一其他+动词的过去分词+have/has+肯定句：主语其他+动词的过去分词+have/has+not+否定句：主语一般疑问句：其他+动词的过去分词+主语Have/Has+其他）+过去分词+主语have/has+一般疑问句（+特殊疑问句：特殊疑问词现在完成时的用法. 二现在完成时用来表示过去已经完成的动作对现在造成影响或后果。
也就1. 是说，动作或状态发生在过去但它的影响现在还存在，强调的是现在。
have already posted the photo.I 我已经邮寄出了照片。
（肯定already与此种用法连用的时间状语时一些模糊的过去时间状语，如lately,neverrecently,still, before, just, , 疑问句句尾）/（否定句yet, 句句中）等。
持续到现在并现在完成时也可用来表示动作或状态发生在过去某一时刻，2. 且有可能会继续持续下去。
He has lived here since 1978.年，一直住到现在，1978动作起始于(年以来，他一直住在这儿。
1978自从)可能还要继续住下去。
时间点或过去时的句子）连用。
谓语+（,since时间段）+（for此种用法常与动词必须是延续性动词。
有些瞬间动词可变为延续动词： go out----be out finish----be over open----be open die----be dead buy---have fall ill---be ill come back----be back catch a cold----have a cold Topic2 The population in developing countries is growing faster.【重点短语和句型】迷路1. get lost 一些，几个2. a couple of 的发展...随着3. with the development of 的帮助下...在4. with the help of... 的其中之一...最/其中之一名词复数+形容词最高级5. one of the+互相6. each other 给某人打电话7. call/ring sb.up 至少8. at least 某人发生某事9. sth. happen to sb. ? 某人发生某事10. What happened to sb? 发生11. take place 因为，由于12. because of 某事严格要求/对某人13. be strict with sb./in sth. 执行14. carry out ... 成百上千/无数的/成千上万15. thousands/millions/hundreds of two thousand/million/hundred 16. s) 具体数字后面不加(百/百万/两千 ... 一半17. half of... 三分之二18. two thirds ... 短缺19. be short of 20. so far 到目前为止而闻名...因21. be known/famous for 而闻名...作为22. beknown/famous as ... 幸亏23. thanks to 有很长的路要走24. have a long way to go的镇...一个叫做25. a town called... 少于26. fewer than/less than 名胜古迹27. places of interest 感兴趣...对28. be interested in 29. such as ... 例如 ... 尝起来/摸/听/闻/看形容词30. look/smell/sound/feel/taste+ +sb./sth 形容词31. such a/an+ 物/的人...如此带某人去某地32. take sb. to sp 赶上33. keep up with 做某事很愉快34. have fun doing sth. ...有35. have a population of... 的人口有多少人口？36. What's the population of...? ... 想要做某事37. want to do sth. 讨厌做某事38. hate to do sth 采取措施做某事39. take measures to do sth. 时间做某事/有机会40.have(no)chance/time to do sth. 过去常常做某事41. used to do sth. 被用来做某事42. be used to do sth. 习惯做某事43. be/get used to doing sth. 方面起到显著作用...在44. work well in doing sth. 【重点语法】already, just , yet, ever, never, recently.常用于现在完成时的时间状语： e.g. 1. I have just called you. Have you ever been to France?——2. been to any European countries.——No, I’ve never Have you seen him yet? ——3. Yes, I have seen him already.——Topic3 The world has changed for the better.【重点短语】用这些钱1. with the money 为了，以致于2. so that ...如此3. so...that... ... 以致于事实上4. in fact/as a matter of fact 来参观5. come for a visit 在困难时6. in need 决定某事7. decide on sth. 为某人提供某物8. provide sth. for sb./provide sb. with sth.有信心...对9. feel good about... 把某物借给某人10 lend sth. to sb/lend sb. sth. 向某人借某物11. borrow sth. from sb. 与此同时12. at the same time 在电话中交谈13. talk on the phone 吸毒14. take drugs 付款15. pay for 给某人买某物16. buy sth. for sb. 在国内外17. at home and abroad 送某人去某地18. send sb. to sp. 派人去请某人19. send for sb. 目的是做某事20. aim to do sth. 决定（不）做某事21. decide(not)to do sth. 结束做某事22. finish doing 怎么样？...你觉得23. How do you like.../What do you think of...? 时间做某事...某人花费24. sb.spend st.in doing sth=It takes sb.st. to do sth. 钱买...某人花费25. sb.spend some money on sth.=sb.pay some money for sth. 某物表示后者情况与前者一样（表肯定）主语+情态动词/助动词26.so+be/助动词neither/nor+be/表示后者情况与前者一样（表否定）主语+情态动词/表示的确如此情态动词/助动词+/be/主语27. so +【重点语法】表示从过去某一时刻,引导的时间状语连用since或for现在完成时：常与1. 延续到现在。
e.g. You have been in New York for a long time.The city has improved a lot since I came here a few years ago.:构词法2. : home +work= homework合成词unhappy——useful, happy——: use派生词Unit2 Saving the Earth Topic1 Population causes too many problems.【重点短语】化工厂1. chemical factory ……排放到……把 2. pour… into…处在不好的情绪中3. in a bad mood 设法去做某事4. manage to do sth.有害……对be harmful to…/ 5. do harm to …相当多6. quite a few 一样差…….同7. no better than 公开地8. in pubic 各种各样的9. all sorts of 在许多方面10.in many ways 【重点句型】 the into water waste pouring factories chemical several are there Look, 1. streams.看，有几家化工厂正往河里排放废水。