大学英语四级选词填空技巧PPT课件

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1. 四级考试概况四级阅读考试题型介绍考试时间试卷构成
2. 20XX.X.X上午9：00-11：20考试时间
3. 试卷构成（共710分）写作 15%听力理解 35%阅读理解 35% 翻译 15%
4. 所占分值比例为15%考试时间30分钟提供的信息提纲、情景、图片或图表120-180字写作
5. 听力（30minutes）短篇新闻 3段长对话 2篇听力篇章 3篇
6. 阅读（40分钟）5%10%20% 选词填空匹配题选择题单选词汇理解长篇阅读仔细阅读
7. 翻译段落翻译（汉译英） 15% 30分钟
8. 选词填空篇章长度为200-250词。要求考生阅读一篇删去若干词汇的短文，然后从所给的选项中选择正确的词汇填空，使短文复原。匹配题采用1篇较长篇幅的文章，总长度约1000词。阅读速度约每分钟100词。篇章后附有10个句子，每句一题。每句所含的信息出自篇章的某一段落，要求考生找出与每句所含信息相匹配的段落。选择题2篇为多项选择题型的短文理解测试，每篇长度为300-350词。阅读
9. 01选词填空题型简介02选词填空解题步骤和技巧03真题分析04平时如何提高选词填空技能选词填空
10. 01近义词辨析不多02固定搭配不多03词性辨析比较容易04首句不设空；一句不设两空选词填空特点
11. 01第一句话完整，常为句子大意0215选10，常考名词，动词，副词，形容词03关键是从语法角度确定选词处的词性，然后进行辨别04篇章选词=语法+词性选词填空考点
12. 01通读全文02整理选项 03选词填空04复读全文，谨慎调整选词填空的解题步骤
13. 第一步：通读全文 (1分钟 ) 通读全文是用较快速度，一行一行地读，目的是把握至少90%的文章内容。要先了解文章大意，带着文章脉络去找选项。所以，务必先沉着地把文章读一遍，尤其注意空格前后的位置，为寻找正确选项打下铺垫。
14. 第二步：整理选项标出15 个选项的词性，名词前写n,动词前写 v 等等。目前四级考试只考实词中的四种：名词 , 动词，形容词，副词。不考代词和数词；也不考虚词（冠词,介词, 连词 ,感叹词）
15. 标注词性时注意的问题1.不认识的单词看词缀 2.认识的单词要注意词性的单一性和多样性（比如challenge,change,display作名词和动词都很常见，都要标出来） 3.动词归类要分为V. V-ed. V-ing。根据语法判断具体的形式。 4.选项中出现一组近义词或者反义词时，往往有一个是干扰选项，它注重考察的是词汇的精确理解。
16. 标词性时的切入点是后缀，也就是词尾。以-ion, -age, -ness,-ship, -ance,-ence, -ency, -dom结尾的大都是名词；以-ize, -ise, -fy结尾的大都是动词；以-ive, -ent, -ful, -ous, -ble, -cal, -less 结尾的是大都是形容词；以-ly结尾的大都是副词。 eg: exclusively 唯一地；专有地 relatively 相当地；相对地 (2017.06) abnormal反常的，不规则的 briefly slightly traditional (2016)
17. 第三步：选词填空 1.判断原文空缺处所需单词的词性，缩小正确选项的范围（1）动词的确定 In particular, when older patients _____(complain) of pain, they were told it was a natural part of aging and they would have to learn to live with it. That＇s why a growing number of hospitals now depend on physicians who ____(specialize) in pain medicine.
18. (2) 名词的确定名词主要做主语/宾语形容词或名词都可以修饰名词限定词（the,this,that, a ,my之类）后必有名词介词后面必有名词或相当于名词的词定语从句前面是名词 Education soon became a _____.(nightmare) As the trade lessen in______...(strength)
19. （3）形容词的确定名词的前面 ...women are ______ customers. 副词的后面 EI Nino brought the most _____ weather in modern history.
20. (4) 副词的确定 1. 动词的附近（前面或后面） ...students____outperform their peers... ...jobs that used to be done ___ by women... 2.形容词的前面 ...but they are still not ____ sure what leads to it... 3.句子的前面 Not ___, the jury found them both guilty.
21. 第四步：复读全文，谨慎调整填空完成后，再次复读全文，自我感觉上下文是否通顺，内在逻辑关系是否连贯。如有问题，需要谨慎的微作调整。
22. 真题分析The method for making beer has changed over time. Hops (啤酒花)，for example, which give many a modern beer its bitter flavor, are a (26)_____recent addition to the beverage. This was first mentioned in reference to brewing in the ninth century. Now, researchers have found a (27)_______ingredient in residue (残留物）from 5,000-year-old beer brewing equipment. While digging two pits at a site in the central plains of China, scientists discovered fragments from pots and vessels. The different shapes of the containers (28)_______ they were used to brew, filter, and store beer. They may be ancient “beer-making tools,” and the earliest (29_______ evidence of beer brewing in China, the researchers reported in the Proceedings of the National Academy of Sciences. To (30)_______ that theory, the team examined the yellowish,dried (31)_______ inside the vessels. The majority of the grains, about 80%, were from cereal crops like barley(大麦),and about 10% were bits of roots, (32)_______lily,which would have made the beer sweeter, the scientists say. Barley was an unexpected find: the crop was domesticated in Western Eurasia and didn＇t become a (33)_______food in central China until about 2,000 years ago, according to the researchers.Based on that timing, they indicate barley may have (34)_______in the region not as food, but as (35)_______material for beer brewing. (2017) A) Arrived B) consuming C) direct D) exclusively E) including F) inform G) raw H) reached I) relatively J) remains K)resources L) staple M) suggest N) surprising O) test
23. As if you needed another reason to hate the gym, it now turns out that exercise can exhaust not only your muscles, but also your eyes. Fear not, however, for coffee can perk them right up again. During 1vigorous exercise, our muscles tire as they run out of fuel and build up waste products. Muscle performance can also be affected by a 2phenomenon called "central fatigue," in which an imbalance in the body＇s chemical messengers prevents the central nervous system from directing muscle movements 3effectively. It was not known, however, whether central fatigue might also affect motor systems not directly 4involved in the exercise itself—such as those that move the eyes. To find out, researchers gave 11 volunteers a carbohydrate 5solution either with a moderate dose of caffeine—which is known to stimulate the central nervous system—or as a placebo without, during 3 hours of 6cycling. After exercising, the scientists tested the cyclists with eye-tracking cameras to see how well their brains could still 7control their visual system. The team found that exercise reduced the speed of rapid eye movements by about 8%, 8preventing their ability to capture new visual information. The caffeine—the equivalent of two strong cups of coffee—was 9sufficient to counteract this effect, with some cyclists even displaying 10increased eye movement speeds, the team reports today in Scientific Reports. So it might be a good idea to get someone else to drive you home after that marathon.
24. 平时如何提高选词填空技能1.掌握词汇的多样性特征 2.了解词缀知识，扩充词汇量 3.关注词汇之间的常用搭配 4.分析语篇内的逻辑关系 5.提高自己分析复合句的语法技能
25. America＇s Internet is faster than ever before, but people still complain about their Internet being too slow. New York＇s Attorney General＇s office __26__ an investigation in the fall into whether or not Verizon, Cablevision and Time Warner are delivering broadband that＇s as fast as the providers __27__ it is. Earlier this month, the office asked for the public＇s help to measure their speed results, saying consumers __28__ to get the speeds they were promised. "Too many of us may be paying for one thing, and getting another," the Attorney General said. If the investigation uncovers anything, it wouldn＇t be the first time a telecom provider got into __29__ over the broadband speeds it promised and delivered customers. Back in June, the Federal Communications Commission fined AT&T $100 million over __30__ that the carrier secretly reduced wireless speeds after customers consumed a certain amount of __31__. Even when they stay on the right side of the law, Internet providers arouse customers＇ anger over bandwidth speed and cost. Just this week, an investigation found that media and telecom giant Comcast is the most __32__ provider. Over 10 months, Comcast received nearly 12,000 customer complaints, many __33__ to its monthly data cap and overage （超过额度的）charges. Some Americans are getting so __34__ with Internet providers they＇re just giving up. A recent study found that the number of Americans with high-speed Internet at home today __35__ fell during the last two years, and 15% of people now consider themselves to be "cord-cutters."
26. A.accusations B.actually C.claim D.communicating E.complain F.data G.deserved H.frustrated I.hated J.launched K.relating L.times M.trouble N.usually O.worried
27. 非谓语一、过去分词 1. 作定语动词的过去分词作定语时,相当于形容词，其逻辑主语就是它所修饰的名词。及物动词的过去分词作定语，表示动作的被动和完成，不及物动词的过去分词作定语，只表示完成。 a.单独及物动词的过去分词一般置于被修饰名词前，做前置定语 a recorded talk spoken language developed country fallen leaves We must adapt our thinking to the changed conditions. b.过去分词短语则要位于名词之后，其意义相当于一个定语从句 The gases sent into the air by the chemical works are poison. The concert given by their friends was a success.
28. 2.作表语动词的过去分词作表语，其实可以看作是过去分词的形容词化，说明的是主语所处的状态。 She looked disappointed. The library is now closed. Don＇t get excited.
29. 3.作状语动词的过去分词作状语表示时间、原因、条件、让步、伴随状况等意义，这种动词的过去分词结构通常相当于一个状语从句. 动词的过去分词作状语表示被动和动作的完成 Written in a hurry, this article was not so good. Lost in deep thought, he didn’t hear the sound. Seen from the hill, the town looks magnificent. Completed, the canal will connect the river with the lake. Given more time, I would have done much better. Even if invited, I wouldn’t go. Though defeated again and again, they went on fighting.
30. 4.作宾语补足语要求用动词过去分词作宾语补足语的动词有三类： a.感官动词 see hear watch notice observe find feel When he arrived home, Tom found his dog killed. I heard the song sung in English. b.使役动词 have get let keep leave make Your car works much better now. Have you got/had it repaired? Don’t leave those things undone.
31. c.表示“认为”“想要”“宣布”“命令”等 think/consider want like wish declare order I consider the matter settled. I thought myself wronged somehow in the bargain. I wanted two tickets reserved.
32. 三、现在分词 1.现在分词的用法 a. 作表语 The news is surprising. That book was rather boring. 很多动词的现在分词都可以作表语:exciting, interesting, encouraging, disappointing, confusing, touching, puzzling.
33. b. 作定语下面所出现的现在分词都可以用作定语, 修饰一个名词 That must have been a terrifying experience. I found him a charming person. 现在分词短语还可以放在名词的后面修饰名词, 相当于一个定语从句 There are a few boys swimming in the river. There is a car waiting outside.
34. c. 作状语现在分词短语可以表示伴随的动作 Opening the drawer, he took out a box. Taking a key out of his pocket, he opened the door. 现在分词短语还可以表示原因, 相当于一个原因状语从句 Not knowing her address, we couldn‘t get in touch with her. 现在分词短语还可以表示时间, 相当于一个时间状语从句 Hearing the news, they all jumped with joy. Returning home, he began to do his homework. Having found a hotel, we looked for somewhere to have dinner.
35. d. 作宾补现在分词在一些动词之后可以做宾语的补语：例如, see, hear, catch, find, keep , have 等. I see him passing my house every day. I caught him stealing things in that shop. I smelt something burning. She kept him working all day.
36. 现在分词和过去分词的区别 (1 )从语态上来区别 1．在语态上现在分词无论是及物动词或不及物动词，一般都表示主动的意思。 Do you know the woman talking to Tom? =Do you know the woman who is talking to Tom? Entering the city,they saw a lot of soldiers marching. =When they entered the city, they saw a lot of soldiers marching.
37. 2．及物动词的过去分词一般表示被动。 The soldier wounded in the war has become a doctor. =The soldier who was wounded in the war has become a doctor. Seen from the top of the hill,the city is more beautiful. =If it is seen from the top of the hill,the city is more beautiful.
38. (2 )从时态上来区别及物动词：现在分词：表正在进行的动作。过去分词：表示已经完成的动作。不及物动词：现在分词：表进行的意思。过去分词：表示完成的意思，而非表被动 China is a developing country and America is a developed country. =China is a country that is developing and America is a country that has developed. (developed countries发达国家 Underdeveloped countries 不发达国家 developing countries发展中国家)
39. 1. Most of the artists _____ to the party were from South Africa. A. invited B. to invite C. being invited D. had been invited 2. As soon as she entered the room, the girl caught sight of the flowers ____ by her mother. A.buying B. being bought C. were bought D. bought 3. The computer center,_____ last year, is very popular among the students in this school. A. open B. opening C. having opened D. opened 4. ____ alone in the dark room, the little boy was so frightened as to cry. A. Leaving B. Left C. To be left D. Having left 5. _____ in a recent science competition, the three students were awarded scholarship totaling 21,000 dollars. A. To be judged the best B. Judged the best C. Having judged the best D. Judging the best
40. 把下列从句变为简单句（带分词） 1．When I entered the room , I saw a strange sight. 2．As I did not know her address , I could not write to her. 3．Though I admit what you say, I still think you should meet him. 4．When he was left alone, the boy began to cry. 5．After he has locked the door, he goes out for a walk. Entering the room, I saw a strange sight.Not knowing her adress, I could not write to her.Admiting what you say, I still think you should meet him.Left alone, the boy began to cry.After having locked the door, he goes out for a walk.

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