18-19Module2SectionⅢGrammar——连词

1、18-19Module2Section川Gramma 词语境自主领悟先观察原句后自主感悟1.Norway is at the top of the list, while the US is at number 7.2.ln the last ten years in China 150 millio n people moved outof poverty.However，the challenges are still great.3.Although more than 80% of children in developingcountries go to primary school

2、, about 115 million children arenot being educated.4.More than 1 billion people in developing countries do notdrink safe waterHowever，in other regions of the world，e.g.Eastern Europe water is now mostly safe to drink.5.The report shows that we are making some progredsut thatwe n eed to make greater

3、efforts.6.Although developed countries give some financial helpthey n eed to give much more.1.1 句中 while 表示 对比或相反的情况， 意为然而。2.由 2、4、5 句可知，but 是一个并列连 词，而 however 用作 副词。3.3、6 句中 although引导让步状语从句，可以与 though 互换。语法精要点拨连词是连接单词、短语、从句或句子的一种虚词，在句中不单独作任何成分， 但大多数连接词都有具体的意义和用法。本单元主要学习表示转折关系的连词 but，however，althou

4、gh/though, while 等。1. but 和 however 的用法两者都意为但是；然而，均表示转折关系，但用法有所不同。(1)but 用作并列连词，用来连接并列句子或并列成分，表示强烈对比、转折， 两个并列成分之间可以用逗号隔开，也可不用，但是but 后面不用逗号隔开。He is a shy man but he is not afraid of anything or anyone.他是一个腼腆的人，但是他不害怕什么事情或任何人。名师点津but 作连词还可用于Im sorry/Excuse me, but. 句式中表示歉意，but 本 身没有意义。Im sorry，but I c

5、ant help you with the problem.很抱歉，我不能帮你解决这个问题。(2) however 作副词时，表示然而，可是，不过，用以引出令人吃惊或表 示对比的话语，可放在句首、句中或句末，但要用逗号隔开。Id like to go with you， however， my hands are full.我很想和你一块去，可是我太忙了。You may be rightHowever， I still want to do what I planned.你也许是对的，但我还想按我计划的去做。名师点津however 作连词时，表示无论如何，不管怎样，相当于 no matter

6、how, 引导让步状语从句，从句可放在主句之前或之后。常构成：however/no matter how + adj./adv. +王语+谓语。However/No matter how hard you try， it is difficult to lose weight without cutt ingdow n the amount you eat.不管你多么努力，如果不减少饭量，减肥很难。He tries his best to solve the problem however difficult it is.他尽力解决这个问题，不管它有多困难。即时演练 1用 but/howeve

7、r 填空1He is young but very experie need.2However long it takes， rm going to get the job finished.3Later，however，he changed his mind.2. although 和 though 的用法(1)although 和 though 都是引导让步状语从句的从属连词，意为尽管，虽 然，一般情况下可互换。但 although 较正式，多用于句首，而 though 在非正 式文体中较为普遍。Although/Though these measuresare not effective

8、 forever，they are vital for now.虽然这些措施并不能永远有效，但它们目前是至关重要的。名师点津although 和 though 都不能和并列连词 but 连用，但可以和 yet 或 still 连用。(2)though 引导让步状语从句时可用部分倒装形式，其用法相当于as,把从句中的表语、状语或动词原形置于句首；假设表语是可数名词单数，前置时要省 略不定冠词。Hot as/though the night air was，we slept deeply because we were so tired afterthe long jour ney.夜晚的空气虽然

9、很热，但因为长途旅行之后很累，我们睡得很沉。Child though/as she is, she knows a lot.虽然还是个孩子，她却懂得很多。Fastas/though you read, you cant finish the book in three days.尽管你读得快，你也不可能在三天内读完这本书。Try though/as I might， I could nt lift the stone.尽管我试了，还是搬不动那块石头。名师点津though 还可以作副词，放在句末，用逗号和主句分开，相当于 however，意 为然而。She said she would come

10、 she didn，though.她说她要来，然而却没来。即时演练 2 一句多译他虽然成功，但不骄傲。1Although/Though he is successful he is not proud.2Successful though/as he is he is not proud.3He is successful but he is not proud.4He is successful he is not proud, though/however.3. while 的用法(1)while 作并列连词表示转折，强调前后句的对比关系，意为然而，此 时 while不能位于句首。Wavi

11、ng on es hand is to say ” Goodbye. Nodd ing the head means agreementwhile shak ing it means disagreeme nt.挥手表示再见，点头表示同意，而摇头表示不同意。(2) while 引导让步状语从句，意为虽然，尽管，可以与 although 或 though 互换，此时 while 位于句首。While online shopping has changed our life， not all of its effects have beenpositive.尽管网上购物已经改变了我们的生活，但不是

12、所有的影响都是积极的(3) while 引导时间状语从句，意为当.时候，此时 while 相当于 duringthe time that.，从句中的谓语动词通常是延续性动词的进行时或状态动词，不可用短暂性动词。I lear nt a lot of French while I was in Paris.在巴黎时我学了很多法语。语法应用落实I.单句语法填空1. Although/Though our football team failed in the match, we did our best.2. Would you like to go to a movie toni ght?Id l

13、ike to， but Im busy prepari ng for the final exam in ati on.【导学号：27932018】3. Please keep still while I am taking photos for you.4. We had thought the figures were correct.Howeverwe found some errors whe nthe pla n was carried out.5. We will have to finish the job， however long it takes.6. rm sorry，b

14、ut. Mr.Eric left the office just a few minutes ago.7. They knew it would be too late to do anythin g.They did nt want to admit thefact， though/however.8. Girl though/as she is she is much naughtier than a boy.【导学号：27932019】n.单句改错1 .Although the Internet is of great help, but I dont think its a good idea to spe ndtoo much time on it.but yet 或去掉 but2. Some people waste lots of food but others have nt eno ugh to eat.btulwhile3 . Much although he likes her , he does get angry with her sometimes.althoughas/though4. Sailing in rough weather can be very unpleasant.Butwe found itexci