PRIVATE_EQUITY_–_WHAT’S_IN_IT_FOR_US

Irish Association of Investment Managers

Series of articles on Investments

Alternative Investments Part 1 - Private Equity

The challenge of maximising real returns in a low inflation, low interest rate environment is encouraging investors to re-examine their portfolios. Private equity has attracted the attention of many investors since it has the potential to offer attractive rates of return while also being a genuine diversification away from the listed equity markets. Private equity is a broad term for any equity type investment in a company that is not listed on a stock exchange.

Expected Returns

Private equity offers the opportunity to share in the development of companies that have the potential to achieve above average growth. This means rates of return are typically superior to investments in listed companies, which tend to be at a more mature stage in their development.

Managers of private equity investments work in partnership with the firms they invest in to create value by growing the revenues and profits of their businesses. Private equity managers are effectively the ultimate ‘growth stock pickers’ since funds hold large, usually controlling stakes in companies. Ultimately, it is the collaboration of managem ent and private equity managers that control a company’s destiny, and not the vagaries of the stock market.

The European Venture Capital Association reports that over the last ten years, the average buy-out managers in Europe have produced internal rates of return of over 17% (December 2002). However, the top quartile managers have generated returns of almost 33% over the same period, illustrating the crucial importance of selecting the best managers.

Risk

Many investors perceive private equity as high risk. This stems from its association with venture capital, which is a riskier sub-sector of the asset class. However, investing in a start-up company is just one aspect of private equity. By far the largest part of the European private equity market involves buyouts of established companies with solid customer bases, proven products and quality management.

A number of studies have shown that private equity returns are not closely related with returns from traditional asset classes. This means private equity can help to smooth out the return of a balanced portfolio. Studies by Standard Life Investments of 10 private equity funds invested in the UK in the 9 years to 2001 and FTSE All Share returns over the same time periods showed the average correlation to be 22%. Given that correlations between US and UK stock markets often exceed 80%, it is clear that investment in private equity can offer significant diversification benefits and actually lower the risk and volatility of a balanced portfolio.

Liquidity

Private equity is still seen as highly illiquid. While this is true to an extent, liquidity in private equity can be compared with other commonly held assets. In property, for instance, transactions can take three to six months to complete and sizeable transaction costs make for a lack of liquidity, at least in the medium term. Even quoted companies are not necessarily liquid with trading volumes for small cap companies making it difficult to realise significant positions. While investment in private equity funds may be illiquid, there is a growing secondary market for investors seeking liquidity and this is likely to develop further in the years ahead.

One way of achieving greater liquidity is for investors to purchase shares in an investment trust listed on the London Stock Exchange, such as the Standard Life European Private Equity Trust. In this way, investors can buy and sell the investment in the same way as any other share.

Access and Charges

The premier funds are often accessible only to investors able to make commitments of €10 million in each fund, so creating a diversified portfolio of around ten private equity funds would require a commitment of around €100 million. Instead, investors need to focus on getting diversified exposure to the best performing managers. For most investors, the most effective solution will be to use a fund of funds, a vehicle whose popularity has grown rapidly, particularly during the last five years. The wide variation in private equity returns between top quartile and median managers is the main driver for investors to use a fund of funds in order to get diversified exposure to the top performing funds.

A fund of funds manager invests in a portfolio of private equity funds that allow diversification by country, industry, manager and investment stage. Funds of funds give access to substantial deal flow and remove the need for investors to devote time to the due diligence process and the negotiations involved in direct investment. Funds of funds sometimes come under fire for their higher fee structure, but for most investors the additional fees are more than outweighed by the outperformance of the

best performing fund of fund managers and also by the costs of developing the same expertise in-house.

Stewart Hay, Investment Director, Private Equities, Standard Life Investments. Standard Life is a member of the Retail committee of the Irish Association of Investment Managers.

Published 29th July 2004 – Irish Independent

what引导名词性从句五种用法

what引导名词性从句的五种用法 一、用法归纳 1. 表示“……的东西或事情”： They’ve done what they can to help her. 他们已经尽力帮助了她。 He saves what he earns. 他赚多少，积蓄多少。 What Mary is is the secretary. 玛丽的职务是秘书。 2. 表示“……的人或的样子”： He is no longer what he was. 他已经不是以前的那个样子。 He is what is generally called a traitor. 他就是人们通常所说的叛徒。 Who is it that has made Fred what he is now? 是谁把弗雷德培养成现在这个样子的？ 3. 表示“……的数量或数目”： Our income is now double what it was ten years ago. 我们现在的收入是10年前的两倍。 The number of the students in our school is ten times what it was before liberation. 现在我校学生的数量是解放前的10倍。 4. 表示“……的时间”： After what seemed like hours he came out with a bitter smile. 似乎过了几个小时他才苦笑着出来。 The young girl was too frightened to speak, standing there for what seemed like hours. 小女孩吓得不敢说话，在那儿站了几个小时。 5. 表示“……的地方”： This is what they call Salt Lake City. 这就是他们称为盐湖城的地方。 In 1492, Columbus reached what is now called America. 1492年哥伦布到达了现在所称的美洲大陆。 二、用法说明 (1) 这样用的what相当于“先行词+关系代词”，所以其前不能有先行词： 你喜欢什么就拿什么吧。 正：You can have what you like. / You can have everything (that) you like. 误：You can have everything what you like. (2) 有时what 可用作限定词，其后修饰一个名词： I gave him what books I had. 我把我所有的书都给他了。 He gave me what money he had about him. 他把身边带有的钱全给了我。 (3) What 后的名词可以是复数名词或不可数名词，但通常不能是单数可数名词： 误：I gave him what book I had.

初中英语感叹句和反意疑问句

中考英语重点句法考点：感叹句和反意疑问句 一、结构： What/ How +被感叹的部分+ 主语+ 谓语！What beautiful flowers they are ! 二、变法： 一断，二加，三调位。 一断表示在谓语动词的后面断开，二加表示在断开的两部分中间加what 或how ,三调位表示前后两部分对调位置。 They had a good time yesterday . 一断：They had / a good time yesterday . 二加：They had（what）a good time yesterday . 三调位：What a good time they had yesterday. 三、what引导的感叹句： 1.what + a / an +adj + 单数名词（+主语+ 谓语）！ _______ a clever boy he is ! 2.what + adj + 复数名词（+主语+ 谓语）！ _______ heavy boxes they are ! 3.what + adj + 不可数名词（+主语+ 谓语）！ _______ bad weather ! 四、how引导的感叹句： 1.How + adj / adv + 主语+ 谓语！ _________ hard they are working ! 2.How + adj + a / an + 单数名词（+主语+ 谓语）！ How tall a boy he is ! 3.How + adj / adv + the + 名词+ 谓语！ ________ heavily the rain is falling! 五、what 与how引导的感叹句之间的转换： 1.What a beautiful girl she is != ______ beautiful the girl is ! 2.How delicious the food is != ______ delicious food it is ! 六、几个常见的感叹句： 1.______ great fun it is ! 2.______ important information ! 3.______ good news ! 4.______ good advice / music ! 5.______ a heavy rain ! 6.______a strong wind ! 七、感叹句中常见的不可数名词： food , work , weather , fun , music , information , news , advice 2010中考英语重点句法考点：反意疑问句 一、结构： 陈述句+ 附加疑问句？It's hot today ,isn't it ? 二、原则： 1.前肯后否，前否后肯 2.前名后代 3.时态一致

When引导的定语从句与时间状语从句的区分

一、从句是如何出题的？ 1. 时态 2. 考连接词 3. 考语言顺序 二、学好从句的两个基本条件 1. 时态 2. 从句的三个必须:①必须是句子；②必须有连接词；③必须是陈述句 三、状语从句、宾语从句、定语从句重点 1.如何判断何种从句 2. 从句的时态 3. 从句的连接词与扩展 4. 经典单选、从句与选词、长句子分析 四、如何判断三种从句 1. 状语从句无先行词 2. 宾语(表语)从句无先行词有动词或词组 3. 定语从句先行词多为名词或代词 一、When引导的定语从句与时间状语从句的区分 1. when的译法不同。在时间状语中，when 翻译成“当……的时候” I want to be a teacher when I grow up. 当我长大的时候，我要做一名老师。在定语从句中，when不翻译。I won't forget the day when he says he loves me. 我不会忘记他说爱我的那一天。 2. 在时间状语中，when从句前面或后面是句子；定语从句中，when 从句不能位于句首，且通常when前为表示时间的名词day、year等。 3. when在从句的作用不同。在时间状语从句中，when是连词，只起连接主句和从句的作用，不做从句的任何成分。不过when引导的时间状语从句修饰主句的谓语，做主句的时间状语。 在定语从句中，when是关系副词，在从句中代替先行词做从句的时间状语，修饰从句的谓语。 例1 I will always remember the days when I lived with my

grandparents in the country. 例2 I always remember the days in the country when I see the photo of my grandparents. 点评：例1意为“我会永远记得跟我祖父母一起住在乡下的那些日子”，其中when 引导的是一个定语从句, 修饰the days, when在从句中作时间状语。例2意为“当我看到祖父母的照片时，总是会想起在乡下的那些日子”，其中when 引导的从句并不修饰前面的名词the country，因此可判定为时间状语从句。 例1中的when可用in which替代，即从句可改为...in which I lived with my grandparents in the country. 例2中从句前有名词，但根据句意可 知并不是从句所修饰的对象，也不能用“介词+ which”来替代。 二、判断关系代词与关系副词 方法一：用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如： This is the mountain village where I stayed last year. 这是我去年呆过的山村。 I'll never forget the days when I worked together with you. 我永远不会忘记与你共事的日子。 判断改错： 1. This is the mountain village where I visited last year. 2. I will never forget the days when I spent in the countryside. 3. This is the mountain village （which）I visited last year.

when和while区别及专项练习---含答案

when和while用法区别专项练习 讲解三例句： 1. The girls are dancing while the boys are singing. 2. Kangkang’s mother is cooking when he gets home. 3. When/While Kangkang’s mother is cooking, he gets home. 一、用when或者while填空 Margo was talking on the phone, her sister walked in. we visited the school, the children were playing games. · Sarah was at the barber’s, I was going to class. I saw Carlos, he was wearing a green shirt. Allen was cleaning his room, the phone rang. Rita bought her new dog; it was wearing a little coat. 7. He was driving along ________ suddenly a woman appeared. 8. _____ Jake was waiting at the door, an old woman called to him. 9. He was reading a book ______suddenly the telephone rang. 10. ______ it began to rain, they were playing chess. [ 二、用所给动词适当形式填空 11. While Jake __________ (look) for customers, he _______ (see) a woman. 12. They __________ (play) football on the playground when it _____ (begin) to rain. 13. A strange box ________ (arrive) while we _________ (talk). 14. John ____________ (sleep) when someone __________ (steal) his car. 15. Father still (sleep) when I (get) up yesterday morning. 16. Grandma (cook) breakfast while I (wash) my face this morning. 17. Mother (sweep) the floor when I (leave) home. ~ 18. I (read) a history book when someone (knock ) at the door. 19. Mary and Alice are busy (do) their homework. 20. The teacher asked us (keep) the windows closed. 21. I followed it (see) where it was going. 22. The students (play) basketball on the playground from 3 to 4 yesterday afternoon. / 三、完成下面句子，词数不限 1.飞机在伦敦起飞时正在下雨。 It when the plane in London. 2.你记得汶川大地震时你在做什么吗 Do you remember what you when Wenchuan Earthquake . 3.当铃声想起的时候，我们正在操场上玩得很开心。 We on the playground when the bell . 4.当妈妈下班回家时，你在做什么 % when Mum from work 5.当我在做作业时，有人敲门。 I was doing my homework, someone

what引导名词性从句

what引导名词性从句 what引导主语从句 1. What David used to say was always new and worth hearing and all his pupils loved him. 2. What makes the book so special is the name of the writer. 3. What impresses me about his painting is the colors he uses. 4. What you said at the meeting describes a bright future for the company. 5. What is important is that we let others know we care about them. 解析考查主语从句的引导词。根据句子结构可知，系动词is前的句子缺少主语，表示“重要的事情”要用what。 6. What some people regard as a drawback is seen as a plus by many others. 意思：一些人看作是缺点的东西却被许多其他的人看作优点. 7. What struck me most in the movie was the father's deep love for his son. 解析本题考查主语从句。句意：这部电影让我最感动的地方就是父亲对儿子的深深的爱。主句谓语动词was之前为主语从句，其中缺少主语指事物，故使用代词what。

What引导宾语从句 1.I’m interested in what you’ve sai d. (介词后的宾语从句) 2. Tina is much more confident behind the wheel than what she was when she started. (介词后的宾语从句) 3. If you swim in a river or lake, be sure to investigate what is below the water surface. Often there are rocks or branches hidden in the water. 解析如果你在河里或湖里游泳的话，务必调查清楚水面之下有什么。水中经常隐藏着石头或树枝。根据后面rocks and branches可知，此处要用what来引导。 4. Reading her biography，I was lost in admiration for what Doris Lessing had achieved in literature. 解析句意：读了多丽丝·莱辛的传记，我很钦佩她在文学上获得的成就。考查名词性从句。考查宾语从句的连接词。在介词for后的是宾语从句，从句中缺少achieve的宾语，故用what引导。(介词后的宾语从句) 5. Pick yourself up.Courage is doing what you're afraid to do. 解析考查名词性从句。句意：跌倒后再站起来。勇气是做你不敢做的事情。这里含有一个宾语从句，引导词在从句中作do的宾语，所以用what。 6. It is difficult for us to imagine what life was like for slaves in the ancient world.

反意疑问句与感叹句Word版

反意疑问句与感叹句 反意疑问句 1）反义疑问句由两部分组成：前一部分是一个陈述句，后一部分是一个简短的疑问句，两部分的人称时态应保持一致。 可记为：前肯后否；前否后肯. 2）陈述部分含have时 ①He has supper at home every day, doesn’t he? （不能用hasn’t he?） ②They have known the matter, haven’t they? （不能用don’t they?） ③She has a nice pen, doesn’t she? 3) 陈述部分含有否定词：few, little, rarely, hardly, never, seldom, no, nothing, nowhere, nobody等，疑问部分要用肯定。 He has never been to Beijing, has he? （不用wasn’t he?） 4) 陈述部分为祈使句(含肯定否定)疑问部分用will you，但陈述部分为 Let’s……时，问句部分习惯上用shall we?形式。 Let me have a try, will you? Let us stop to rest, will you? Let’s go home together, sha ll we? 5) 宾语从句

①I think that he has done his best, hasn’t he? ②We don’t believe that the news is true, is it? （不用do we?） ②He didn’t think that the news was true, did he? （不用wasn’t/ was it? ） 6) 陈述部分的主语为不定代词： ① Someone has taken th e seat, hasn’t he? ② Everyone has done their best in the game, haven’t they? ① Something is wrong with the computer, isn’t it? ② Nothing has happened to them, has it? 7) 陈述部分为I am (I’m),疑问部分用aren’t I. I am silly, aren’t I? I’m n ot silly, am I? 8) 陈述部分为There (Here) + be + 主语时，问句部分用动词+there(here)?形式。如： ① There are two cakes on the plate, aren’t there? ② Here is a story about Mark Twain, isn’t here?

when和while的区别是

Period____8______ in Unit ___6_________ （Period_____20_____Week 4-6）Subject _Grammar (B) Teaching aims To use the Past Continuous Tense with while and when correctly Teaching interesting points of this class: The differences of when and while in Past Continuous Tense Teaching steps: I. Cooperation and intercourse 1. Check the preparation 2. Discuss in groups II. Question and explanation Check the exercises on page 101, and explain the differences between when and while. when和while的区别是： when只能用于一般时态 while可以用于进行时态 when conj. 在...的时候, 当…的时候 when 在绝大多数情况下，所引导的从句中，应该使用非延续性动词（也叫瞬间动词） 例如：I'll call you when I get there. 我一到那里就给你打电话 I was about to go out when the telephone rang.我刚要出门，电话铃就响了。 但是，when 却可以be 连用。 例如：I lived in this village when I was a boy. 当我还是个孩子的时候我住在这个村庄里。 When I was young, I was sick all the time. 在我小时候我总是生病 while 当...的时候 While he was eating, I asked him to lend me $2. 当他正在吃饭时,我请他借给我二美元。While I read, she sang. 我看书时，她在唱歌。 while 的这种用法一般都和延续性动词连用 while 可以表示“对比‘，这样用有的语法书认为是并列连词 Some people like coffee, while others like tea. 有些人喜欢咖啡, 而有些人喜欢茶。 as 当...之时，一边......一边....... I slipped on the ice as I ran home. 我跑回家时在冰上滑了一跤 He dropped the glass as he stood up. 他站起来时，把杯子摔了。 She sang As she worked. 她一边工作一边唱歌。 III. Rumination and evaluation when, as, while这三个词都可以引出时间状语从句，它们的差别是：when 从句表示某时刻或一段时间as 从句表示进展过程，while 只表示一段时间 When he left the house, I was sitting in the garden. 当他离开家时，我正在院子里坐着。 When he arrived home, it was just nine o'clock.

初级中学英语语法疑问句和感叹句

知识图谱 -疑问句-感叹句一般疑问句和特殊疑问句选择疑问句和反义疑问句What引导的感叹句How引导的感叹句第15讲_疑问句和感叹句 错题回顾 疑问句 知识精讲 疑问句指提出问题，请对方回答的句子。疑问句句末要用问号。按结构可分为四种：一般疑问句、特殊疑问句、选择疑问句、反意疑问句。 一、一般疑问句 1、一般疑问句概述 一般疑问句，也可称为是否型问句，因为它一般用yes或no回答的，基本的结构为：be/助动词/情态动词+主语+谓语/表语+(其他),句子要读升调。 对一般疑问句作肯定回答时，通常是Yes, 主语+be/助动词/情态动词；否定回答时，通常是No, 主语+be/助动词/情态动词+not，not通常用省略形式，如： ---Can you swim to the other side？你能游到对岸吗？ ---Yes, I can. 是的，我能。 ---No, I can’t. 不，我不能。

注意：回答一般疑问句除了用yes或no外，也可用certainly，probably，perhaps，of course，all right，with pleasure等代替yes，用never，not at all等代替no，使得语气更加客气，委婉，如： ---Can you help me? 你能帮个忙吗？ ---Certainly. 当然。 ---Could you please make less noise? 你可以小声一点吗？ ---All right, sir. 好的，先生。 ---Have you been there? 你到过那里吗？ ---Never. 从来没有。 二、特殊疑问句 1. 特殊疑问句概述 特殊疑问句多以who，where，when，which，whose，why这类词开头，其结构一般为：特殊疑问词+一般疑问句，即：特殊疑问词+be/助动词/情态动词+主语+谓语/表语+(其他)，通常读降调，如： Who is it on the phone? 谁来的电话？ How many oranges can you see in the picture? 你能在图画上看到多少个橘子？ 2. 疑问副词

过去进行时、when和while引导时 间状语从句的区别

过去进行时过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作，常和表过去的时间状语连用，如： 1. I was doing my homework at this time yesterday. 昨天的这个时候我正在做作业。 2. They were waiting for you yesterday. 他们昨天一直在等你。 3. He was cooking in the kitchen at 12 o'clock yesterday. 昨天12点，他正在厨房烧饭。 过去进行时的构成： 肯定形式：主语+was/were+V-ing 否定形式：主语+was not (wasn't)/were not (weren't)+V-ing 疑问形式：Was/Were+主语+V-ing。 基本用法： 1. 过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有，at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…)，when sb. did sth.等时间状语从句，如： 1）What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么？ 2）I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前，当时她在一家无线电商店工作。 3）I was cooking when she knocked at the door. 她敲门时我正在做饭。 2. when后通常用表示暂短性动词，while后通常用表示持续性动词，而while所引导的状语从句中，谓语动词常用进行时态，如： When the car exploded I was walking past it. = While I was walking past the car it exploded. 3. when用作并列连词时，主句常用进行时态，从句则用一般过去时，表示主句动作发生的过程中，另一个意想不到的动作发生了。如： I was walking in the street when someone called me. 我正在街上走时突然有人喊我。 4. when作并列连词，表示“（这时）突然”之意时，第一个并列分句用过去进行时，when引导的并列分句用一般过去时。如：

WHEN与WHILE用法区别

WHEN与WHILE用法区别 when, while这三个词都有"当……时候"之意，但用法有所不同，使用时要特别注意。 ①when意为"在……时刻或时期"，它可兼指"时间点"与"时间段"，所引导的从句的动词既可以是终止性动词，也可是持续性动词。如： When I got home, he was having supper.我到家时，他正在吃饭。 When I was young, I liked dancing.我年轻时喜欢跳舞。 ②while只指"时间段"，不指"时间点"，从句的动词只限于持续性动词。如：While I slept, a thief broke in.在我睡觉时,盗贼闯了进来。 辨析 ①when从句与主句动作先后发生时，不能与while互换。如： When he has finished his work, he takes a short rest.每当他做完工作后，总要稍稍休息一下。(when = after) When I got to the cinema, the film had already begun.当我到电影院时，电影已经开始了。(when=before) ②when从句动词为终止性动词时，不能由while替换。如： When he came yesterday, we were playing basketball.昨天他来时，我们正在打篮球。 ③当从句的谓语是表动作的延续性动词时，when, while才有可能互相替代。如：While / When we were still laughing, the teacher came in.正当我们仍在大声嬉笑时，老师进来了。 ④当从句的谓语动词是终止性动词，而且主句的谓语动词也是终止性动词 时,when可和as通用，而且用as比用when在时间上更为紧凑，有"正当这时"的含义。如： He came just as (or when) I reached the door.我刚到门那儿，他就来了。 ⑤从句的谓语动词如表示状态时，通常用while。如： We must strike while the iron is hot.我们应该趁热打铁。 ⑥while和when都可以用作并列连词。

what与whatever引导的从句

what与whatever引导的从句 作者：佚名文章来源：本站原创点击数：777 更新时间：2014-6-28 what与whatever引导名词性从句的区别 what和whatever作为引导词来引导从句，它们之间到底有什么异同点？what只能引导名词性从句 ，如主语从句、宾语从句、表语从句和同位语从句，whatever既可以引导名词性从句，又可以引导让 步状语从句。 一、what引导名词性从句 what引导名词性从句时，可在主语从句、宾语从句、表语从句和同位语从句中充当成分，其意思 主要有以下两种：一是含有疑问含义，表示“什么……”；二是相当于“名词/代词+关系代词引导的 定语从句”结构，意为“……的事情/东西/样子/颜色”等。 下面我们看看what在句中的意思以及相应的句子转换。 1. I have tried my best to do what I can to help him. 为了帮助他，我已经尽我的最大努力去做我所能做的事情。 what引导宾语从句，在句中相当于the thing that。 2. Before a problem can be solved，it must be obvious what the problem is. 在解决问题前，我们必须要弄清楚问题是什么。 it 为形式主语，what引导主语从句，且在从句中作表语，what在句中意为“什么”，表示疑问 。 3. Do you have any idea what is actually going on in the classroom？ 你知道教室里正在发生什么事情吗？ what引导同位语从句，此处what也表示疑问，意为“什么”，且what在从句中作主语。 4. —Are you still thinking about yesterday’s game？ —Oh，that’s ____. A. what makes me feel excited B. whatever I feel excited about C. how I feel about it D. when I feel excited

过去进行时、when和while引导时间状语从句的区别

过去进行时 过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作，常和表过去的时间状语连用，如： 1. I was doing my homework at this time yesterday. 昨天的这个时候我正在做作业。 2. They were waiting for you yesterday. 他们昨天一直在等你。 3. He was cooking in the kitchen at 12 o'clock yesterday. 昨天12点，他正在厨房烧饭。 过去进行时的构成： 肯定形式：主语+was/were+V-ing 否定形式：主语+was not (wasn't)/were not (weren't)+V-ing 疑问形式：Was/Were+主语+V-ing。 基本用法： 1. 过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有，at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…)，when sb. did sth.等时间状语从句，如： 1）What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么？ 2）I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前，当时她在一家无线电商店工作。 3）I was cooking when she knocked at the door. 她敲门时我正在做饭。 2. when后通常用表示暂短性动词，while后通常用表示持续性动词，而while所引导的状语从句中，谓语动词常用进行时态，如： When the car exploded I was walking past it. = While I was walking past the car it exploded. 3. when用作并列连词时，主句常用进行时态，从句则用一般过去时，表示主句动作发生的过程中，另一个意想不到的动作发生了。如： I was walking in the street when someone called me. 我正在街上走时突然有人喊我。 4. when作并列连词，表示“（这时）突然”之意时，第一个并列分句用过去进行时，when引导的并列分句用一般过去时。如： 1）I was taking a walk when I met him. 我正在散步，突然遇见了他。 2）We were playing outside when it began to rain. 我们正在外边玩，这时下起雨来了。 过去进行时和一般过去时的用法比较： 1）过去进行时表示过去正在进行的动作，而一般过去时则表示一个完整的动作。 例如：They were writing letters to their friends last night. 昨晚他们在写信给他们的朋友。（没有说明信是否写完） They wrote letters to their friends last night.

while、when和as的用法区别

as when while 的区别和用法 as when while的用法 一、as的意思是“正当……时候”,它既可表示一个具体的时间点，也可以表示一段时间。as可表示主句和从句的动作同时发生或同时持续，即“点点重合”“线线重合”；又可表示一个动作发生在另一个动作的持续过程中，即“点线重合”， 但不能表示两个动作一前一后发生。如果主句和从句的谓语动词都表示持续性的动作，二者均可用进行时，也可以一个用进行时，一个用一般时或者都用一般时。 1、As I got on the bus，he got off. 我上车，他下车。（点点重合）两个动作都是非延续性的 2、He was writing as I was reading. 我看书时，他在写字。（线线重合）两个动作都是延续性的 3、The students were talking as the teacher came in. 老师进来时，学生们正在讲话。（点线重合）前一个动作是延续性的，而后一个动作时非延续性的 二、while的意思是“在……同时（at the same time that )”“在……期间(for as long as, during the time that）”。从while的本身词义来看，它只能表示一段时间，不能表示具体的时间点。在时间上可以是“线线重合”或“点线重合”，但不能表示“点点重合”。例如： 1、He was watching TV while she was cooking. 她做饭时，他在看电视。（线线重合） 2、He was waiting for me while I was working. 我工作的时候，他正等着我。（线线重合） 3、He asked me a question while I was speaking. 我在讲话时，他问了我一个问题。（点线重合）

小升初英语专项复习讲义与试题-[第25讲] 五大句型—感叹句、反意疑问句 通用版(word版,含答案)

五大句型（三）-感叹句、 反意疑问句 【精品讲义】 Contents 反意疑问句结构 反意疑问句原则 祈使句的反意疑问句 大显身手 感叹句 大显身手

反意疑问句 Xi Xi is clever, isn’t she? Yes, she is. 她聪明 No, she isn’t. 她不聪明 Xiao Qiang isn’t a careless boy, is he? Yes, he is. 他粗心 No, he isn’t. 他不粗心 反意疑问句结构陈述句，简短的一般疑问句 原则前肯后否，前否后肯 疑问句若是否定的，必须用缩略形式如It’s a nice day, isn’t it? 疑问句中用人称代词或there 如The dog is cute, isn’t it? 陈述句中若含有以下词则表否定 no, never, hardly, few, little, nobody, nothing 祈使句的反意疑问句 Do it yourself, will you? Don’t be late next time, will you? Let us sit together, will you? Let’s go shopping, shall we? 大显身手 1．--- The film Kungfu Panda2 is on at the cinema. Let’s go to see it, ? --- OK. Let’s go. A．will you B．shall we C．won’t we D．don’t you 2．There is little we can do about it, ? A．is there B．can’t we C．is n’t there D．can we 3．Kate’s ha rdly late for school, ? A．is she B．isn’t she C．has she D．hasn’t she 4．Don’t forget to wake me up at six tomorrow morning, ? A．shall we B．do you C．will you D．shall not we 5．They had a good time at her birthday party, ? A．haven’t they B．did they

when,while,as引导时间状语从句的区别

when，while，as引导时间状语从句的区别 when，while，as显然都可以引导时间状语从句，但用法区别非常大。 一、when可以和延续性动词连用，也可以和短暂性动词连用；而while和as只能和延续性动词连用。 ①Why do you want a new job when youve got such a good one already？（get 为短暂性动词）你已经找到如此好的工作，为何还想再找新的？ ②Sorry，I was out when you called me．（call为短暂性动词）对不起，你打电话时我刚好外出了。 ③Strike while the iron is hot．（is为延续性动词，表示一种持续的状态）趁热打铁。 ④The students took notes as they listened．（listen为延续性动词）学生们边听课边做笔记。 二、when从句的谓语动词可以在主句谓语动作之前、之后或同时发生；while 和as从句的谓语动作必须是和主句谓语动作同时发生。 1．从句动作在主句动作前发生，只用when。 ①When he had finished his homework，he took a short rest．（finished先发生）当他完成作业后，他休息了一会儿。 ②When I got to the airport，the guests had left．（got to后发生）当我赶到飞机场时，客人们已经离开了。 2．从句动作和主句动作同时发生，且从句动作为延续性动词时，when，while，as都可使用。 ①When ／While ／As we were dancing，a stranger came in．（dance为延续性动词）当我们跳舞时，一位陌生人走了进来。 ②When ／While ／As she was making a phonecall，I was writing a letter．（make为延续性动词）当她在打电话时，我正在写信。 3．当主句、从句动作同时进行，从句动作的时间概念淡化，而主要表示主句动作发生的背景或条件时，只能用as。这时，as常表示“随着……”；“一边……，一边……”之意。 ①As the time went on，the weather got worse．（as表示“随着……”之意） ②The atmosphere gets thinner and thinner as the height increases．随着高度的增加，大气越来越稀薄。 ③As years go by，China is getting stronger and richer．随着时间一年一年过去，中国变得越来越富强了。 ④The little girls sang as they went．小姑娘们一边走，一边唱。 ⑤The sad mother sat on the roadside，shouting as she was crying．伤心的妈妈坐在路边，边哭边叫。 4．在将来时从句中，常用when，且从句须用一般时代替将来时。 ①You shall borrow the book when I have finished reading it．在我读完这本书后，你可以借阅。 ②When the manager comes here for a visit next week，Ill talk with him about this．下周，经理来这参观时，我会和他谈谈此事。 三、when用于表示“一……就……”的句型中（指过去的事情）。 sb．had hardly（＝scarcely）done sth．when．．．＝Hardly ／Scarcely had sb．done sth．when．．．