九年级第一单元知识点_仁爱英语 (1)
九年级上册英语笔记仁爱版
九年级上册英语笔记仁爱版仁爱版九年级上册英语笔记。
一、Unit 1 The Developing World。
（一）重点单词。
1. proper.- adj. 恰当的，合适的；正确的。
例如：You should use proper language in public.（你在公共场合应该使用恰当的语言。
）2. by the way.- 顺便说一下。
常用来引出一个新的话题或者补充信息。
例如：By the way, have you heard from Tom lately?（顺便问一下，你最近收到汤姆的信了吗？）3. volunteer.- n. 志愿者；v. 自愿做。
例如：Many volunteers helped in the earthquake - stricken area.（许多志愿者在地震灾区提供帮助。
）He volunteered to clean the classroom.（他自愿打扫教室。
）4. give a hand.- 帮助。
相当于help。
例如：Could you give me a hand with my luggage?（你能帮我拿一下行李吗？）（二）重点短语。
1. in need.- 在困难中；在贫困中。
例如：We should help those in need.（我们应该帮助那些有困难的人。
）2. come for a visit.- 来参观；来访问。
例如：My friends will come for a visit next week.（我的朋友们下周将来参观。
）（三）重点句型。
1. Have you come back from your hometown?- 这是一个现在完成时的一般疑问句。
其结构为“Have/Has+主语+过去分词+其他”。
回答可以是Yes, I have.或者No, I haven't.2. There goes the bell.- 这是一个倒装句。
仁爱版九年级上册英语Unit1Topic1知识点
仁爱版九年级上册英语Unit1Topic1知识点Unit 1 Topic 1※短语集锦1.have a good summer holiday 暑假过得好2.take place 发生3. have / has been to 去过某地(去而已归)have / has gone to 去了某地（去而未归）4. so many / few + 可数名词复数+ that… 如此多…以至于…So much / little +不可数名词+ that…如此少的…以至于…5. a proper place to take photos / pictures一个适合拍照的地方6. by the way 顺便问一下7. There goes the bell = The bell is ringing = That’s the bell 铃声响了8. take part in = join in = be in +某项活动join + sb / club / team /组织9. tell a story to sb 给某人讲故事10. feed the disabled children 喂残疾儿童11. What a wonder experience! 多么精彩的一次经历啊！12. learn a lot from … 从…中学习到很多13. have no time to do sth 没有时间做某事14. chat on line 上网聊天15. around the world = all over the world 全世界16. have a hard life = live a hard life 过着艰苦的生活Life is hard for sb 对某人来说生活是艰难的17. in detail 详细地18. in the past 在过去at present 现在in the future 将来19. Is that so? = Really? 真的吗？真是那样吗？20. in order to = so that = in order that 为的是；以便于in order to 后+动词短语so that / in order that后+ 句子21. support a family 供养一个家庭give support to 给…提供帮助22. day and night 日日夜夜23. What about you? = How about you? 你呢24. Now our country has developed rapidly.现在我们国家发展迅速developed：发达的developing：发展中的development：发展eg：1)China is a developing country.2) Japan is the only developed country in Asia.3) With the development of China, people’s living conditions become better andbetter.25. get / have / receive a good education 接受良好的教育26. have a balanced diet 均衡膳食27. more than = over 超过; 多余28. see … oneself 亲自看到29. in the 1968s 在二十世纪六十年代30. the living conditions 生活条件31. have a chance to do 有机会做某事32. keep in touch with 与某人保持联系get in touch with 与某人取得联系33. by letter or telegram 靠信件或电报34. things to choose from 供挑选的东西35. sorts of = kinds of 多种36. not only … but also … 不但….而且…37. Wha t’s more 而且38. make progress 取得进步make rapid progress 取得快速的进步make great progress 取得巨大的进步39. succeed in doing sth = be successfulin doing sth 成功做某事eg: Beijing succeeded in hosting the 29thOlympic Games in 2008. （同义句）= Beijing was successful in hosting the 29thOlympic Games.40. It’s important for sb to do sth 做…对某人是重要的41. dream about / of doing sth 梦想做某事42. watch a movie in the open air 看露天电影43. with the help of = with one’s help 在某人的帮助下44. draw up 拟定；起草45. thanks to … = because of 多亏；由于46.check over = look over 检查※精讲精析Section A1.have / has been to 去过某地（去而已归）与ever, never, before及次数等连用have / has gone to 去了某地（去而未归）have / has been in 表示在…已经多久了eg：用been, gone, in填空1)_ Where have you ?_ I have to a shopping center.2)_ Where is Maria?_ She has to Cuba.3)_ Has your mother ever there?_ No, she has never there.4)She has to England. She will come back in ten days.5)He has to Xian many times.6)He has been China for two years.7)How long have you been in this city?2. so ... that ... / such ... that ...都可意为如此...以至于...区别如下：1）so +形容词+ a / an + 单数名词= such + a / an + 形容词+ 单数名词eg：1) It is so moving a movie that all of us can’t help crying.（同义句）= It is such a moving movie that all of us can't help crying.2) It is so interesting a book that I read it again and again. （同义句）2) 如果名词是可数名词复数或不可数名词时这时只能用such , 不能用so3) 如果名词前有many , much , little, few时只能用so,不能用such.练习：用so / such 填空1) The boy is young that he can’t go to school.2) She told us a funny story that we all laughed.3) He has few books to read that he has to borrow some from the school library.4) It is a tall building that I can’t see its top.5) The old man is ill that he can’t get u p.6) It was fine weather that we went swimming last weekend.7) They are small children that they can’t go to school.8) She speaks English well that the teacher praises(表扬）her.9) There is little bread that it is not enough for many people.10) It is delicious food that we all like it very much.3. There goes the bell.（同义句)= The bell is ringing.= That’s the bell.4.I want to work hard to make my English better.（同义句）= I want to work hard to improve myEnglish.注意：so ... that 句型的否定可与too ... to 句型和not enough ... to do 句型进行转换eg：1) Tom is so young that ha can’t go to school. （同义句）= Tom is too young to go to school.= Tom isn’t old enough to go to school.2)The desk is so heavy that I can’t move it. （同义句）= The desk is too heavy for me to move.= The desk i sn’t light enough for me to move.3)The apple tree is so tall that we can’t reach it.（同义句）= The apple tree is too tall for us to reach.= The apple tree isn’t short enough for us to reac h.5.1) I have been to Beijing.(提问）Where have you been?2) Lily has been to Cuba.(提问）Where has lily been?3) My sister has gone to the gym.(提问）Where has your sister gone?4) They have gone to Shanghai.(提问）Where have they gone?Section B1.in a disabled children’s home在残疾儿童之家2.experience 在此处意为经历What a wonderful experience!一次多么棒的经历啊！experience还可意为经验讲，作经验讲时它是一个不可数名词eg: The teacher has a lot of teaching experience.这个老师有许多教学经验。
仁爱英语九年级unit1topic1知识点归纳
G9 Unit 1 Topic 1Topic 1 Our country has developed rapidly.一、重点词汇（一）换1. training -- train “训练”(v.)2. rapid (adj.)--- rapidly(adv.)3. recent (adj) -- recently(adv.)4. develop (v.) -- development (n.) -- developed “发达的”；developing “发展中的”(adj.)5. narrow (反义词 ) -- wide ( 二) 重点短语 ★SA8. have the chance to do sth.有机会做 某事 1. have a good summer holiday9. receive a good education 接受良好的教育过一个愉快的暑假 10. keep in touch with sb by letter or telegram 2. come back from ⋯从⋯ ⋯ 回来通过书信或电报与某人取得联系 3. take place 发生4. have/ has been to... 去过⋯ ⋯5. so... that... 如此⋯ ⋯ 以至于6. improve my English 提高我的英语水平7. by the way 顺便问一问8. have/ has been to... 已经去了 ★SB11. far away 遥远12. the reform and opening-up 改革开放 13. taller and brighter 又高又明亮14. satisfy one ’s needs 满足某人的需要 15. not only ⋯ but also ⋯ 不但⋯ ⋯ 而且⋯ ⋯ 16. enjoy good medical care1. take part in 参加2. volunteer activities 志愿者活动3. in a disabled children ’s home 在一家残疾儿童养育院4. feed sb. 喂某人5. a wonderful experience 一次精彩的经历6. learn ⋯ from 从⋯ ⋯ 当中学习7. had (no) time to do sth. 有（没）时间 做 ⋯ ⋯8. put on funny shows for sb 为某人表演有趣的节目9. a group of 一组，一群 10. something meaningful 一些有意义的事情享受很好的医疗保健 17. what ’s more 而且 18. make rapid progress取得很大 /快速进步19. succeed in doing sth 成功地做 某事 20. remember the past 记住过去 21. live in the present 立足现在 22. dream about the future 展望未来 23. the course of ⋯ ⋯ 的过程 ★SD1. leisure activities 休闲活动2. play an important part in在⋯ ⋯ 中发挥重要作用11. do some farm work 干一些农活 ★SC1. in the past 在过去2. at present 现在3. more than 超过，多于4. see . oneself ⋯ 亲眼看 见 ⋯ ⋯5. living conditions 3. play hide-and-seek 捉迷藏4. play chess 下棋5. in one's spare/free time 在某人空闲时6. spend ... on sth.花费 ⋯ ⋯ 在⋯ ⋯ 上7. various kinds of 各种各样8. both... and... 不仅 ⋯ ⋯ 而且⋯ ⋯在⋯⋯1二、重点句型。
仁爱版九年级上册英语知识点
仁爱版九年级上册英语知识点一、Unit 1 The Developing World。
1. 重点单词。
- describe：v. 描述；形容。
例如：Can you describe your new school?- provide：v. 提供；供应。
常用搭配：provide sb. with sth.或者provide sth. for sb.，如：The school provides us with a good learning environment.- remain：v. 保持；依然。
可作系动词，后接形容词等作表语，例如：He remained silent at the meeting.- increase：v. & n. 增加；增长。
increase by表示“增加了……”，increase to表示“增加到……”。
2. 重点短语。
- be short of：短缺；缺乏。
例如：The area is short of water.- so far：到目前为止，常与现在完成时连用。
如：So far, we have learned a lot in this semester.- take place：发生，通常指有计划、有安排地发生，没有被动语态。
例如：The sports meeting will take place next week.3. 重点句型。
- It is + adj. + for sb. to do sth.：对某人来说做某事是……的。
例如：It is important for us to protect the environment.- have/has been to与have/has gone to的区别：- have/has been to表示“去过某地（已经回来）”，例如：I have been to Beijing twice.- have/has gone to表示“去了某地（还没回来）”，例如：He has gone to Shanghai on business.二、Unit 2 Saving the Earth。
仁爱版九年级上册第一单元Topic 1知识点
Unit 1The Changing WorldTopic 1Our country has developed rapidly.重点单词bell n. 钟（铃）声；铃，钟Africa n. 非洲shut v. 关闭，关上ever adv. 在任何时候，从来rope n. 绳子，绳索communication n. 通讯；交流；交往report n. & v. 报告；汇报relative n. 亲属，亲戚since prep. 自……以后，从……以来conj.从……以后；既然，因为satisfy v. 使满意，使满足medical adj. 医学的；医疗的machine n. 机器，机械rapid adj. 迅速的，快速的progress n. 进步v. 进展；逐步发展already adv. 已经，早已hide v. 躲藏；遮挡；隐瞒chess n. 国际象棋radio n. 收音机spare adj. 空闲的；空余的abroad adv. 在国外；到国外重点短语1. take place 发生，进行2. keep in touch with…跟……保持联系3. make progress 取得进展，取得进步4. succeed in doing sth. 成功地做了某事重点句型1. You took part in some volunteer activities during summer holidays,didn’t you?2. Though I had no time to travel,I still felt very happy.3. Leisure activities are the kinds of things people like to do to relax and enjoy themselves when they are not working or going to school.4. Many people stay at home having a rest,reading books and watching TV.重点语法1. 现在完成时（I）have/has done…have/has been to…have/has gone to…。
九年级仁爱版unit1知识点
九年级仁爱版unit1知识点九年级仁爱版Unit 1知识点九年级是一个学习和成长的关键时期，而仁爱版教材Unit 1是我们学习英语的开始。
在这个单元中，我们将学习很多有趣和实用的知识点，以下是一些重要的内容：一、动词的时态动词的时态是学习英语的基础，Unit 1中涉及到了一些常用的时态，比如一般现在时、一般过去时和一般将来时。
在句子中使用正确的时态可以让我们表达自己的意思更清晰、更准确。
例如，在一般现在时中，我们使用动词原形来表达现在的状态或经常性的动作。
比如，“I love to read books”（我喜欢阅读书籍）。
在一般过去时中，我们使用动词的过去式来表达过去发生的事情。
比如，“She studied English last night”（昨晚她学习了英语）。
在一般将来时中，我们使用“will”加动词原形或者be going to加动词原形来表达将来要发生的事情。
比如，“I will go to the movie theater tomorrow”（明天我将去电影院）。
二、名词的单复数名词的单复数也是英语学习中的基础内容之一。
在Unit 1中，我们学习了如何正确地使用名词的单复数形式。
一般来说，名词加s表示复数，但也有一些特殊情况需要记住。
当名词以s、x、ch、sh结尾时，加es表示复数。
比如，“I have two watches”（我有两个手表）。
当名词以辅音字母+y结尾时，变y为i再加es表示复数。
比如，“I have many dictionaries”（我有很多字典）。
当名词以元音字母+y结尾时，直接加s表示复数。
比如，“I have three days off”（我有三天休假）。
当名词以o结尾时，有些名词加es表示复数，有些名词加s表示复数。
比如，“I eat two potatoes”（我吃了两个土豆），但是“I have two radios”（我有两台收音机）。
最新仁爱版英语九年级上册Unit1 Topic1知识点 完整版
Unit1 Topic1 SectionA1.高兴做某事be happy/glad to do sth.2.现在完成时：①定义：强调已经发生或完成的动作对现在造成的影响或结果。
②构成：助动词have/has+动词的过去分词③八大时态：三“一”：一般现在时，一般过去时，一般将来时两“现”：现在进行时，现在完成时三“过”：过去进行时，过去完成时，过去将来时3.回来come back=be back=return4.发生：take place (有计划地发生）happen(偶然发生）①What happened to you?②happen to do sth.碰巧做某事(注意：发生没有被动语态）5.越来越美more and more beautiful越来越热hotter and hotter6.去过某地（已回来）have/has been to···去了某地（没回来，强调不在说话现场）have/has gone to···7.如此······以致于①so+形容词+that结果状语从句②such+名词+that结果状语从句（注意：当句中有many,much,few,little表示数量时，均用so）8.拍照take photos=take pictures9.顺便问一下by the way在去······的路上on the way to···挡道，妨碍in the way用这方式in this way10.铃响了. There goes the bell.=That’s the bell.=The bell is ringing.11.来come--came--come 变成become--became--become去go--went--gone 带走take--took--taken是be--was/were--beenUnit1 Topic1 SectionB1.现在完成时句式变化：肯定句：He has cleaned the room.否定句：He hasn’t cleaned the room.一般疑问句：Has he cleaned the room?肯定、否定回答：Yes,he has. / No,he hasn’t.特殊疑问句：What has he done?2.参加，加入①take part in=join in=be in(后跟活动）②join后跟组织，join sb.3.以···为食feed on=live on喂养feed---食物food流血bleed---血液blood4.看见see--saw--seen 喂养feed--fed--fed学习learn--learned/ learnt--learned/ learnt制作；使make--made--made拥有；吃；喝have--had--had感觉feel--felt--felt 放置put--put--put做，干do--did--done 飞，放飞fly--flew--flown阅读read--read--read 遇见meet--met--met5.experience①经历：可数名词②经验：不可数名词experienced为形容词“有经验的”6.感叹句有三种：①What+名词②How+形/副③How+句子How time flies!(注意：“时间，风，雨，雪，三餐，人口，成功”等虽然是不可数名词，但若前面有形容词修饰时，必须用a/an)7.使役动词make的用法：①make sb.+形容词②make sb.+职务名词（职务名词前不能加a/an/the）③make sb. do sth.8.别的，其他的other+复数名词=others9.任何别的any other+单数名词（同一范围内比较）10.虽然though不能与but连用，因为because不能与so连用.11.没有时间做某事have no time to do sth.no=not a / not any12.交朋友make friends with13.put on 穿上；上演；增加（体重）14.①动名词做主语，谓语动词用单三②动词不定式做主语，谓语动词用单三③不可数名词/单数名词做主语，谓语动词用单三④特殊疑问词做主语，谓语动词用单三⑤不定代词做主语，谓语动词用单三⑥one of +the+形容词最高级+复数名词，谓语动词用单三⑦主语从句做主语，谓语动词用单三Unit1 Topic1 SectionC1.在过去in the past 目前，现在at present2.采访；面试interview采访者；面试者interviewer 被采访者；被面试者interviewee3.超过，多于more than=over4.亲眼所见see sth. oneself=see sth. with one’s own eyes=5.在20世纪60年代：in the 1960s在1960年：in 19606.挤进···be crowded intocrowd(动词：挤名词：人群，观众）crowded：形容词7.足够的enough ①enough+名词②形/副+enoughHe is old enough to make enough money.他足够大能挣足够的钱了。
仁爱英语九年级unit1topic1知识点归纳
换(v.)”””一’系’’节G9Unit1Topic1Topic1Our country has developed rapidly.一、重点词汇（一）词形转1.training--train“训练2.rapid(adj.)---rapidly(adv.)3.recent(adj)--recently(adv.)4.develop(v.)--development(n.)--developed“发达的；developing“发展中的(adj.)5.narrow(反义词)--wide(二)重点短语★SA8.have the chance to do sth.有机会做某事1.have a good summer holiday9.receive a good education接受良好的教育过一个愉快的暑假10.keep in touch with sb by letter ortelegrame back from⋯从⋯⋯回来3.take place发生4.have/has been to...去过⋯⋯5.so...that...如此⋯⋯以至于6.improve my English提高我的英语水平7.by the way顺便问问8.have/has been to...已经去了★SB1.take part in参加2.volunteer activities志愿者活动3.in a disabled childrens home在一家残疾儿童养育院4.feed sb.喂某人5.a wonderful experience一次精彩的经历6.learn⋯from从⋯⋯当中学习通过书信或电报与某人取得联11.far away遥远12.the reform and opening-up改革开放13.taller and brighter又高又明亮14.satisfy ones needs满足某人的需要15.not only⋯but also⋯不但⋯⋯而且⋯⋯16.enjoy good medical care享受很好的医疗保健17.whats more而且18.make rapid progress取得很大/快速进步19.succeed in doing sth成功地做某事20.remember the past记住过去21.live in the present立足现在7.had(no)time to do sth.有（没）时间做⋯⋯22.dream about the future展望未来8.put on funny shows for sb为某人表演有趣的目9.a group of一组，一群10.something meaningful一些有意义的事情11.do some farm work干一些农活★SC1.in the past在过去2.at present现在3.more than超过，多于4.see.oneself⋯亲眼看见⋯⋯5.living conditions生活条件6.ring roads环23.the course of⋯⋯的过程★S D1.leisure activities休闲活动2.play an important part in在⋯⋯中发挥重要用3.play hide-and-seek捉迷藏4.play chess下棋5.in one's spare/free time在某人空闲时6.spend...o n sth.花费⋯⋯在⋯⋯上7.various kinds of各种各样8.both...and...不仅⋯⋯而且⋯⋯9.places of interest作形道路7.be crowed into 挤在⋯⋯名胜古迹10.in the open air在户外1二、重点句型。
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Topic 2 What has happened to the population?一、重点词汇（一）词形转换1. possible (反义词) impossible2. rise (过去分词) risen3. conclude (名词) conclusion4. medicine (形容词) medical5. difficult (名词) difficulty6. less (反义词) more7. excellent (近义词) great/ good 8. different (名词) difference9. come (过去式) came (过去分词) come 10. see (过去式) saw (过去分词) seen 11. peace (形容词) peaceful（二）重点短语1. get lost 走失；迷路hate to go shopping 讨厌去购物hear from sb.=receive/ get a letter from sb. 收到某人的来信be abroad 在国外at least 至少take place = happen 发生China’s one-child policy 中国的独生子女政策be strict with sb. 对某人要求严格the population of China 中国的人口live longer 活得更长medical care 医疗保健control the population 控制人口be known / famous as 以……而闻名work well in doing sth. 在做某事方面很有功效have a long way to go 有很长的路要走be short of 缺乏……one of the greatest problems 最大的问题之一be in trouble 陷入麻烦中/ 在困境中prefer boys to girls 重男轻女offer sb. a good education 提供某人良好的教育a couple of 一些;几个even though = even if 即使have a lot of pressure 有许多压力the differences between A and B A与B之间的区别重点句型We got lost and couldn’t find each other. 我们走失了，互相找不到对方。
It seems that their living conditions were not very good. 似乎他们的生活条件不是很好。
It is possible that Kangkang’s father was the only child in his famil y.康康的父亲有可能是他家中的独生子。
One answer is known as the one-child policy. 其中一项众所周知的措施是独生子女政策.And even though we have made a lot of progress, we have big pollution problems in thecity. 虽然我们已经取得了很大的进步，但是仍存在严重的城市污染问题。
三、重点语言点1．---- I really hate to go shopping. 我真讨厌去购物。
---- So do I . 我也是。
So do I .为倒装句，表示前面提到的肯定情况也同样适合另外一个主体，表“某某也一样”，结构为“so + be /情态动词/ 助动词+ 主语”。
如：Jim is a student, so is Tom. 吉姆是一名学生，汤姆也是。
Jim can swim, so can Tom. 吉姆会游泳，汤姆也会。
Jim likes sports, so does Tom. 吉姆喜欢运动，汤姆也喜欢。
如表前面不怎样，后面“也不”怎样时，其结构为“ neither/ nor + be /情态动词/ 助动词+ 主语”。
如：Jim wasn’t Chinese, neither/ nor were they.吉姆不中国人，他们也不是。
Jim can’t speak Japanese, neither can I .吉姆不会说日语，我也不会。
Jim didn’t go there, neither did I .吉姆没去那儿，我也没去。
如前后两句表达的是同一个主体，则不能倒装，表“的确如此”。
如：Jim is a good student. So he is. 吉姆是一名好学生，的确如此。
Jim swims well. So he does. 吉姆游泳很好，的确如此。
2．At that time, China was the country with the largest population in the world.那时，中国是世界上人口最多的国家。
population为不可数名词，表示人口的多少只能用“large”或“small”修饰，提问人口用“what”, 如：The population of Shanghaiis larger than that ofBeijing. 上海的人口比北京多。
What’s the population ofChina?= How many people are there inChina?中国的人口有多少？3. Great changes have taken place in China. 中国发生了巨大变化。
take place 指必然性的“发生”或有计划、安排之内的“举行”。
如：The meeting will take place next Friday. 会议将在下周五举行。
happen 指偶然的、没有预料的“发生“，其结果往往给人带来不幸或麻烦。
如：The accident happened yesterday. 事故发生在昨天。
※两者都不用于被动语态。
The population has increased a lot. 人口增长发很多。
increase 可作及物动词也可作不及物动词。
其含义是“增长，增加，加强”等。
increase by… 指“增加了……”;increase to…指“增加到……”…, and about one fifth of the people in the world live inChina.而且世界上大约五分之一的人口生活在中国。
one fifth 是分数表达法。
英文分数表达法：分子为基数词，分母为序数词，先读分子后读分母。
当分子大于1时，分母的序数词则变为复数，直接在词尾加“s”如：one fourth 四分之一；three fourths 四分之三；one second 二分之一；two thirds 三分之二6．It has worked well in controlling China’s population.它在控制人口数量方面取得了显著的功效。
work well in doing sth. 表“在……方面很有功效”, 如:Doing eye exercises works well in protecting our eyesight.做眼保健操在保护视力方面很有功效。
7. Because of our large population, we are short of energy and water.be short of…表“缺乏……”, 如:She is always short of money at the end of every month. 每个月底她总是缺钱。
be short for… 表“是……的缩写”, 如:TV is short for television. TV是television的缩写形式.8. Can all Chinese families offer their children a good education?所有的中国家庭都能给他们的的孩子提供良好的教育吗？offer 表“（主动）给予，提供”offer sb. sth. “提供某人某物”如：I offered him a glass of wine. 我敬了他一杯酒。
offer to do sth. “（主动）提出做某事” 如：She offered to cook for her mother. 她提出帮她妈妈煮饭。
I can’t go shopping in big stores unless I travel for a couple of hours.我得花几个小时，才能到大的商场购物。
a) unless = if not 表“除非…; 如果不”，引导条件状语从句。
如：I won’t go unless I hear from you. = I won’t go if I don’t hear from you.如果你不通知我，我就不去。
Unless B ill studies hard, he’ll fail in the exam. 如果比尔不努力, 他不会通过考试的.b) a couple of… 表“几个人或几件事”, 如:a couple of years ago 几年前; a couple of students 几个学生couple 指任何两件同类的东西; 如:a couple of watches 两只手表；five couples of cats 五对猫pair 指两件不可分开使用的东西,它们可指两件互不相连的东西(鞋子、袜子等)，也可指两部分构成的一件东西（裤子、剪刀等）。
如：a pair of shoes 一双鞋子 a pair of pants 一条裤子四、重点语法现在完成时常与下列表不明确的状语连用：1．already 和yetalready “已经”（多用于肯定陈述句），如：He has already gone home. 他已经回家了。
yet “已经; 还”（用于否定句或疑问句），如：Have you found him yet? 你已经找到他了吗？I haven’t finished my homework yet.我还没完成作业。
※ already 也可用于疑问句，表“出乎意料或惊奇”Have you finished your homework already? 难道你已经完成作业了？2．ever 和neverever “曾经”（多用于疑问句，问初次经历），如：I have ever been abroad. 我曾出过国。