| 1. 难度：中等 | |
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Before you pay a visit to a place of interest，look in your local library________a book about it. (2013·安徽，22) A．on B．at C．for D．to
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| 2. 难度：中等 | |
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I am always delighted when I receive an email from you.________the party on July 1st，I shall be pleased to attend. (2013·江苏，26) A．On account of B．In response to C．In view of D．With regard to
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| 3. 难度：简单 | |
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An artist who was recently traveling on a ferry to the southern island discovered________a long lost antique Greek vase. (2013·湖北，30) A．at random B．by chance C．in turn D．on occasion
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| 4. 难度：中等 | |
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The manager wants to see changes in the company，and I am sure he will ________. (2013·陕西，24) A．in particular B．in turn C．in charge D．in time
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| 5. 难度：中等 | |
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A serious study of physics is impossible________some knowledge of mathematics. (2013·大纲全国，31) A．against B．before C．beyond D．without
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| 6. 难度：中等 | |
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I have an appointment ________ Dr.Smith，but I need to change it.(2013·北京，26) A．to B．off C．with D．from
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| 7. 难度：简单 | |
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________everyone here，I wish you a pleasant journey back to your country.(2013·辽宁，25) A．By means of B．On behalf of C．In search of D．For fear of
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| 8. 难度：简单 | |
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Mrs.Smith finds it hard to clear up the mess，as her children are always ________ whenever she tries to. (2013·福建，29) A．in the way B．on watch C．in sight D．on the line
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| 9. 难度：简单 | |
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It was a real race________time to get the project done.Luckily，we made it. (2013·新课标全国Ⅰ，34) A．over B．by C．for D．against
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| 10. 难度：简单 | |
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It will be a big help if you go to the store and get what we need for dinner.________，I’ll set the table. (2013·浙江，14) A．As a result B．On the whole C．In the meanwhile D．As a matter of fact
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| 11. 难度：中等 | |
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The Smiths are praised________the way they bring up their children.(2013·山东，34) A．from B．by C．at D．for
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| 12. 难度：简单 | |
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Nothing is so easy as ________ parents to raise their expectations of their children too high. (2012·福建，33) A．of B．to C．by D．for
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| 13. 难度：中等 | |
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—Thank God you’re safe! —I stepped back，just________to avoid the racing car.(2012·江苏，29) A．in time B．in case C．in need D．in vain
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| 14. 难度：中等 | |
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You can change your job，you can move house，but friendship is meant to be________life. (2012·安徽，25) A．of B．on C．to D．for
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| 15. 难度：中等 | |
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The Well Hotel stands in a quiet place ________the main road at the far end of the lake. (2012·辽宁，27) A．to B．for C．off D．out
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| 16. 难度：中等 | |
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China has been pushing the reform of public hospitals ________ all its citizens.(2012·福建，26) A．in charge of B．for the purpose of C．in honor of D．for the benefit of
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| 17. 难度：中等 | |
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Brown said he was by no means annoyed；________he was glad to be able to make himself clearly understood. (2012·浙江，14) A．all in all B．for one thing C．on the contrary D．by the way
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| 18. 难度：中等 | |
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．________all the animals I’ve ever had，these two dogs are the most sensitive to the spoken word. (2012·浙江，6) A．From B．Of C．For D．With
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| 19. 难度：中等 | |
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An agreement seems to be impossible because the majority of the committee members are ________ it. (2012·陕西，11) A．against B．for C．to D．with
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| 20. 难度：中等 | |
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Do you think this shirt is too tight ________ the shoulders？(2012·北京，34) A．at B．on C．to D．across
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| 21. 难度：中等 | |
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—Do you often go fishing at weekends? —Not often，I only go fishing________. A．at one time B．all the time C．at a time D．from time to time
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| 22. 难度：中等 | |
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He was a good student and scored ________ average in most subjects. A．below B．of C．on D．above
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| 23. 难度：中等 | |
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The traveler didn’t know________which direction to go. A．in B．at C．to D．/
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| 24. 难度：中等 | |
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I am________your suggestion that we should spend more time on this project. A．in memory of B．in honour of C．in favour of D．in need of
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| 25. 难度：中等 | |
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—Your sister’s plan is not quite practical.Why not try to persuade her to give it up? —My sister is very stubborn，so it is________to try to change her mind. A．by chance B．in vain C．on purpose D．for sure
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| 26. 难度：中等 | |
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He wanted to pass the exam and stayed up very late，while this ________created further problems. A．in turn B．in case C．in doubt D．in short
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| 27. 难度：中等 | |
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The woman sold the eggs ________ seven dollars and they were sold________half price. A．with；at B．for；at C．at；in D．by；on
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| 28. 难度：中等 | |
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He likes his new job，for he is paid ________ the day. A．through B．during C．by D．according
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| 29. 难度：中等 | |
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Shirley，a real book lover，often brings home many books to read ________ the library. A．in B．for C．by D．from
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| 30. 难度：中等 | |
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Nick，it’s good for you to read some books ________ China before you start your trip there. A．in B．for C．of D．on
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| 31. 难度：中等 | |
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I always wanted to do the job which I’d been trained ________. A．on B．for C．by D．of
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| 32. 难度：简单 | |
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I’m sorry I didn’t phone you，but I’ve been very busy ________ the past couple of weeks. A．beyond B．with C．among D．over
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| 33. 难度：中等 | |
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There were 252 votes ________ the bill and 186 against. A．in need of B．in favour of C．in search of D．in case of
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| 34. 难度：中等 | |
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This shop will be closed for repairs ________ further notice. A．with B．until C．for D．at
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| 35. 难度：中等 | |
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________it is a good thing I did not get the post I had applied for，though I must admit that I was disappointed at the time. A．By the way B．In a way C．In the way D．In no way
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| 36. 难度：中等 | |
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Never put the medicine________the reach of your little child in case he takes it by mistake. A．beyond B．within C．across D．from
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| 37. 难度：中等 | |
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—When did it begin to snow? —It started________the night. A．during B．by C．from D．at
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| 38. 难度：中等 | |
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Those overseas students volunteer 10 hours each week in Paris ________ free food and accommodation. A．in search of B．in contact with C．in case of D．in exchange for
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| 39. 难度：中等 | |
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We’d better discuss everything ________ before we work out the plan. A．in detail B．in general C．on purpose D．on time
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| 40. 难度：中等 | |
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The two things are the same in outward form but different________. A．in addition B．in brief C．in common D．in essence
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| 41. 难度：中等 | |
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Mr.Columbus was always ready to help others.________，he was liked by everyone. A．In conclusion B．In return C．In turn D．In particular
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| 42. 难度：中等 | |
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Johnson was to blame for the incident.But ________ his positive attitude，we forgave him because “Every man has his faults.” A．in view of B．in search of C．for fear of D．in exchange for
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| 43. 难度：中等 | |
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．She was told to wear flat shoes ________ her back problem. A．on account of B．regardless of C．in terms of D．in case of
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| 44. 难度：中等 | |
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At the railway station，he waved goodbye to his friend until the train was ________. A．out of sight B．out of reach C．out of order D．out of place
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| 45. 难度：中等 | |
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While in London，we paid a visit to the hospital founded ________ Florence Nightingale. A．in honor of B．in line with C．in favor of D．in place of
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| 46. 难度：中等 | |
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When I was a small child，during the war，we were very poor and we lived in a faraway village.One day，on the road，I found the ____ pieces of a mirror.There was a motorcycle accident. I ____ to find all the pieces and put them ____，but it was not possible，so I used only the ___ piece and I made it round.I could ____ with it as a toy and became greatly attracted by the ____ that I could reflect light to dark places where the sun would never shine—in ____ holes and some other dark places.It became a game for me to ____ light into the darkest places I could find. I ____ the little mirror，and，as I grew up，I would take it out ____ I had nothing to do and ____ the game.As I became a man，I grew to realize that this was not ____ a child’s game but a metaphor(暗喻) for what I might ____ my life.I came to ____ that I am not the light or the source of light.But light—truth，understanding，knowledge—is there，and it will shine in many dark places ____ I reflect it. I am just a single piece of a mirror whose ____ design and shape I do not know.___，with what I have I can reflect light into the dark places of this ____—into the black places in the ____ of men—and change some things in some people.Perhaps others may see and do the same.This is what I am about.This is the ____ of my life. 1.A.broken B．wasted C．painted D．sharpened 2.A.pretended B．tried C．demanded D．hated 3.A.back B．down C．together D．aside 4.A.lightest B．longest C．hardest D．largest 5.A.talk B．play C．deal D．share 6.A.suggestion B．fact C．decision D．reason 7.A.deep B．big C．bright D．empty 8.A.attract B．show C．get D．bring 9.A.kept B．cut C．used D．mended 10.A.until B．before C．when D．after 11.A.watch B．continue C．remember D．change 12.A.just B．wholly C．really D．even 13.A.get from B．owe to C．tell about D．do with 14.A.announce B．doubt C．understand D．expect 15.A.so that B．now that C．even if D．only if 16.A.whole B．unique C．special D．other 17.A.Otherwise B．However C．Besides D．Therefore 18.A.country B．village C．world D．city 19.A.hands B．brains C．eyes D．hearts 20.A.way B．standard C．quality D．meaning
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| 47. 难度：中等 | |
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As a nation we are becoming more aware of the food we and our children are eating.The recent campaign to improve school dinners by celebrity(名人) chef Jamie Oliver has helped raise awareness of our fast food lifestyles.While we may be trying to eat more healthily，it seems we still have some bad habits. •Healthy eaters or just trendy? Are there certain things that you do and don’t eat and why？With so many food programmes and books telling you what you should and shouldn’t eat to be healthy，it’s hard to make choices. Some people are vegetarians for moral reasons，some don’t like the taste of meat and there are one or two people who do it because it’s trendy.Likewise，it can be trendy to follow the latest celebrity’s diet because it’s what the famous are doing. •Eating out People are eating out more often now，not just on special occasions as in the past.The choice of restaurants has also diversified.Italian，Chinese and Indian restaurants have been around for years but have now been joined by Mongolian，Japanese，Mexican and so on.Bars and pubs are still popular for food and often promote English cuisine made with local produce. “We enjoy eating out a couple of times every month whether with friends or just as a couple.We like trying new things so we go to different restaurants.” said Craig,25，County Durham. •Eating on the go From chocolate bars to sandwiches more people are eating on the go—on the street，in cars or on buses and trains.While our parents and grandparents may frown at this behaviour，considering it to be bad manners，people eat on the go because they are rushing from one place to another.And in the home the number of people sitting down at a dining table for their evening meal is on the decrease as meal times become more informal. “If I’m running late for work I don’t think twice about eating toast in the car or on the bus but I know my mum wouldn’t approve，” said Stacey,24. 1.What can we infer from the text? A．Our parents think highly of the eating habits mentioned in the text. B．We should get rid of the bad habits and try to be healthier. C．Japanese restaurants have been around for years. D．It’s good for people to eat out more frequently. 2.People find it difficult to decide what to eat to keep healthy because ________. A．different programmes and books have different ideas about healthy eating B．there are many celebrities having different diet styles C．what the famous are doing is different from ours D．they have some bad eating habits 3.The underlined word “diversified” in Paragraph 4 probably means “________”． A．made a great change B．made a big difference C．had a rapid increase D．had a wide variety 4.Craig often goes to different restaurants because ________. A．he likes trying new things B．he follows the latest celebrity diet C．he enjoys the meal with his friends D．he has more special occasions to celebrate
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| 48. 难度：中等 | |
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In today’s throwaway society，dealing with the city’s growing mountain of waste is an increasing challenge for the city council (市议会)． Recently，Edinburgh is faced with the problem of disposing of (处理) about 250,000 million tons of waste a year.Despite different ways to dispose of much of it in a green manner—largely through encouraging recycling—its aging facilities such as the Powderhall landfill do not have the ability to deal with it. The European Union (EU) has issued a new policy，regulating how such mountains of waste are to be disposed of.The five councils (Edinburgh，East Lothian，West Lothian，Midlothian and Borders) face fines around ￡18 million a year from 2013 if they don’t increase recycling levels and rely less on landfill.With this in mind，the councils got together with the idea of building a large incinerator plant (垃圾焚烧厂) to burn half of the waste produced in their districts.But this plan fell apart after the change of target levels by a new UK government waste policy which required that no more than 25% of the city’s waste should be disposed of in this way by 2025. After the plan was abandoned，a private company which already transported millions of tons of the city’s waste by train to a landfill site near Dunbar，offered an alternative solution when it suggested opening a huge waste site near Portobello. Since Powderhall is supposed to close in 2015，it seemed necessary for the members of the Edinburgh Council to accept the suggestion.But soon they turned it down—after 700 local objections reached them—because it would have meant hundreds of lorries a day making loud noise through heavily populated areas. That still leaves the council with a problem.By 2013，only 50% of 1995 levels of waste will be allowed to be sent to landfill.Even if recycling targets are met，there will still be a large amount of rubbish to be burnt up.Due to this，Edinburgh and Midlothian councils have now decided to work together to build an incinerator plant as time to find a solution is fast running out.(2011·湖北，C) 1.The main way of handling waste in a green manner in Edinburgh is ________. A．recycling B．restoring C．burying D．burning 2.The five councils worked out a plan to build an incinerator plant to ________. A．reduce the cost of burying waste B．meet the EU requirements C．speed up waste recycling D．replace landfill sites 3.The city council of Edinburgh rejected the suggestion to open a huge landfill site near Portobello because ________. A．it came from a private company B．the council was not interested in it C．it was not supported by EU D．the local people were against it 4.What is the final decision of Edinburgh and Midlothian councils? A．To open a new landfill nearby. B．To close the Powderhall landfill in 2015. C．To set up a plant for burning waste. D．To persuade people to reduce their waste.
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| 49. 难度：中等 | |
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Women had a significant part to play during World War Ⅱ，which was the time when women also made their own contributions.Some women’s great efforts and their names have been recorded in history.Here’s a look at some of the strong figures of women in World War Ⅱ. Tatiana Nikolaevna Baramzina was born in Glazov of Russia on December 12,1919.In 1943，she was sent to the Central Women’s Sniper Training School and upon her graduation in April，she was further sent to the front.She managed to kill around 16 enemies in the first three months！Unfortunately，she was captured(俘虏) by the enemies and was killed on the fifth of July in 1944.Today，the street where she grew up has been renamed in her memory. Anne Frank was a Germanborn Jewish girl who was wellknown for the publication of her diary that described all her experiences when the Germans occupied Holland in World War Ⅱ.Anne was born on June 12,1929 and she，along with her family，went into hiding in July 1942.Two years later，her family was captured and seven months from her arrest，Anne Frank died of illness in early March 1945. Margaret Ringenberg was born on 17 June,1921，in Indiana of America.She began her career during World War Ⅱ when she became a ferry pilot for the Women Airforce Service Pilots.After that she turned a flight instructor in 1945.She even wrote her own book named Girls Can’t Be Pilots.She passed away on 28 July,2008，after flying for 40,000 hours in the air. Hannah Szenes was born on 17th July,1921 and was trained to parachute(用降落伞空投) by the British army into Yugoslavia during World War Ⅱ.This task was given in order to save the Jews of Hungary.Her secret mission was not revealed even when she was tortured(折磨) following her arrest at the Hungarian border.Hannah Szenes had to brave immense tortures，yet she did not lose heart.She bravely battled it out and tried to sing to keep her spirits high！She also kept a record of events in her diary till 7th November,1944，when she was finally killed. These names are just a few of the women who played a significant part in World War Ⅱ.Their stories go a long way in showing the kind of lifestyles they led and their struggles and sacrifices. 1. What is mainly discussed in the text? A．Women were braver than men in World War Ⅱ. B．Women and men made equal contributions in World War Ⅱ. C．Women played a significant role in World War Ⅱ. D．Women’s death rate was high in World War Ⅱ. 2.Which of the four women heroes died the youngest? A．Tatiana Baramzina. B．Anne Frank. C．Margaret Ringenberg. D．Hannah Szenes. 3. Who were killed by the enemy in the war? A．Tatiana Baramzina and Anne Frank. B．Hannah Szenes and Tatiana Baramzina. C．Anne Frank and Margaret Ringenberg. D．Margaret Ringenberg and Hannah Szenes. 4. It can be learned from the text that ________. A．Tatiana Baramzina was once a flight instructor B．Margaret Ringenberg was the best at writing about the war experiences C．Anne Frank and her family were arrested by Germans in 1944 D．Hannah Szenes was arrested by Germans because of her diary
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| 50. 难度：中等 | |
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Most people give little thought to the pens they write with，especially since the printers in modern homes and offices mean that very ____things are handwritten.All too often，people buy a pen based only on ____，and wonder why they are not satisfied ___ they begin to use it.However，buying a pen that you’ll enjoy is not ____ if you keep the following in mind. First of all，a pen should fit comfortably in your hand and be __5__ to use.The thickness of the pen is the most important characteristic(特征)____ comfort.Having a small hand and thick fingers，you may be comfortable with a thin pen.If you have a ____ hand and thicker fingers you may ____a fatter pen.The length of a pen can ____ influence comfort.A pen that is too ____ can easily feel topheavy and unstable. Then，the writing point of the pen should ____ the ink to flow evenly(均匀地) while the pen remains in touch with the paper.____ will make it possible for you to create a ____ line of writing.The point should also be sensitive enough to ____ink from running when the pen is lifted.A point that does not block the ____ may leave drops of ink，____ you pick the pen up and put it down again. ___，the pen should make a thick，dark line.Fineline pens may ____ bad handwriting，but fine，delicate lines do not command ____ next to printed text，as，____，a signature on a printed letter.A broader line，on the other hand，gives an impression of confidence and authority(权威)． 1.A.many B．few C．pleasant D．important 2.A.looks B．reason C．value D．advantages 3.A.once B．if C．because D．though 4.A.convenient B．practical C．strange D．difficult 5.A.heavy B．easy C．hard D．safe 6.A.taking B．finding C．determining D．seeking 7.A.stronger B．weaker C．smaller D．larger 8.A.prefer B．recommend C．prepare D．demand 9.A.hardly B．also C．never D．still 10.A.thick B．light C．long D．soft 11.．A.change B．allow C．reduce D．press 12.A.They B．One C．This D．Some 13.A.thin B．rough C．black D．smooth 14.A.prevent B．free C．protect D．remove 15.A.way B．sight C．flow D．stream 16.．A.so B．as C．and D．yet 17.A.Meanwhile B．Generally C．Afterwards D．Finally 18.A.show up B．differ from C．break down D．compensate for 19.A.attention B．support C．respect D．admission 20.A.at most B．for example C．in brief D．on purpose
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| 51. 难度：中等 | |
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Nowadays，much of the profit of a business—sometimes the whole of its success—depends upon the use of the odds and ends.The odds and ends are various small things，which are left over when the main things are produced.But they possess a real value of their own. If a business，big or small，looked down upon these odds and ends，it would mean a big difference in the amount of the benefit of the business.Take a meat factory for instance，there are countless odds and ends—bones and hair，which can be made into glue and rope to increase its profit greatly. Then，if we are college students，what about our odds and ends—the odd moments？Take time for example.Every one of us has the exact same amount of it.Everyone’s success or failure depends on the use of their time.But everyone uses the time more or less in the same way.However，why many great men in science or art have made huge successes for themselves in the world？Because they have made best use of their odd moments.Thomas A．Edison，never allowed his odd moments to slip by.He thought，planned，and tried his inventions.He always worked twenty hours out of each twentyfour.His inventions made him famous all over the world，and provided valuable wealth for the human beings. So，remember this axiom：busy people always find time for everything.However，people with great spare time find time for nothing.Is it very strange？Not at all！The question is how to gather up fragments of time and make full use of them.As many big businesses have found，the real profit is in using the odds and ends.We also must do in this way to make best use of our odd moments and manage to be successful in something we do. 1.What are odds and ends? A．They are nothing useful. B．They are very small，but valuable things. C．They are the main things factories produce. D．They are odd moments students refuse to gather up. 2.Why should the odds and ends be made full use of? A．Because they often determine success or failure. B．Because they can only be found by successful people. C．Because they are various small things people don’t want. D．Because they are useless things left over. 3.The underlined word axiom in the last paragraph means________. A．a statement given by famous people B．a statement accepted as true C．a statement that can be argued D．a statement accepted in scientific field 4.Which of the following statements is TRUE? A．The profit of all companies depends on the odds and ends. B．In some way，big meat companies can ignore some small things，such as bones. C．College students only make full use of their spare time before exams. D．Many successful men are good at using the odds and ends.
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| 52. 难度：中等 | |
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Alomada Racraotion and Fork Deportment (ARFD) (510)7477529 TEEN TRIP TO THE LELAND HIGH SNOW PLAY FOR Teens Currently in 6th to 12th Grades LELAND HIGH SNOW PLAYClass #8389 Friday，December 9 (NonPublic School Holiday) 8∶00 a．m.to 7∶00 p．m. Cost per person：$50 ($60 after January 22)—Includes：Lunch，Admission and Transportation With a 4,000 sq.ft.day use lodge，the Leland High Snow Play has a huge supply of tubes to choose from，along with awesome tows(拖车) that will tow you up to the top of the hill！Our varied terrains(地形) have something for everyone，while the lodge provides a snack bar，video games，pool tables，five indoor restrooms，a warm fire，and a sun deck with plenty of tables and chairs over looking the play area outside. Additional liability(责任) form required for the trip. Be sure to bring warm clothing and prepare for the cold，but dress in layers in case it warms up.Wear dry boots，socks，and sunscreen.If possible，bring a mobile phone in case of emergency，as well as money for snacks and a light dinner；or bring your own food and drinks.Meet at The Underground (Veteran’s Building2203 Central Avenue)—don’t be late! Do not bring electronic or fragile items during the trip.The ARFD is not responsible for your personal belongings or money. Refunds are issued only if the ARFD cancels this trip due to weather conditions. Click here to download the registration form and “Leland High Snow Play Liability Form”． •Register in person，or mail the completed form to Leland High Snow Play，Inc.Send the liability form and payment to the ARFD Office,2226 Santa Clara Avenue，Alameda. •Fax the registration and liability form accepted with VISA，(510)7477566. •Online registrations available at www.arpdeplay.com. Make sure you bring your completed liability form on the trip. 1.According to the text，the cost doesn’t include ________. A．lunch B．drinks C．admission D．transportation 2.The purpose of the text is to ________. A．introduce a famous tour agency B．explain the details of a school activity C．urge teenagers to climb a snowy mountain D．advertise a trip to the Leland High Snow Play 3.Teenagers who want to take part in the activity need to ________. A．wear some warm clothes B．climb the hill themselves C．pay for tows individually D．wear hats to protect themselves from the sun 4.From the text it can be inferred that ________. A．the activity is very dangerous B．the weather there is changeable C．the trip will involve outdoor activities only D．12yearold children are not allowed to take the trip
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| 53. 难度：中等 | |
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Plants may not have eyes and ears，but they can recognize their siblings (兄弟姐妹)，and researchers at the University of Delaware have discovered how.The ID system lies in the roots and the chemical signals they secrete (分泌)． Canadian researchers published that sea rocket，a common seashore plant，can recognize its siblings.Susan Dudley observed that when siblings are grown next to each other in the soil，they “play nice” and don’t send out more roots to compete.However，the moment one of the plants is thrown in with strangers，it begins competing with them by rapidly growing more roots to take up the water and mineral nutrients in the soil. After reading Dudley’s study，Bais decided to find the method behind the sibling recognition.Working in his laboratory，Bais and his doctoral student Meredith Biedrzycki set up a study with wild populations of Arabidopsis thaliana.In a series of experiments，young seedlings were exposed to liquid media containing the root secretions from siblings，from strangers，or only their own secretions.The length of the longest lateral (侧面的) root was measured.The exposure of plants to the root secretions of strangers induced (引诱) greater lateral root formation than exposure of plants to sibling secretions.Strangers planted next to each other are often shorter，because so much of their energy is directed at root growth.Because siblings aren’t competing against each other，their roots are often much shallower (浅的)． Biedrzycki did the painstaking laboratory research，observing more than 3,000 plants involved in the study every day for seven continuous days and documenting the root patterns.“Arabidopsis roots are nearly translucent (半透明的) when they are young and were also twisted when I removed them from plates，”Biedrzycki notes.“This manuscript (手稿) is very important for my research since the focus of my thesis project is understanding the biochemical ways behind root secretions.” The research also may have implications for the home gardener.“Often we’ll put plants in the ground next to each other and when they don’t do well，we blame the local garden center where we bought them or we attribute their failure to a germ，”Bais says.“But maybe there’s more to it than that.” 1.Which of the following would be the best title for this passage? A．A Great Biology Researcher B．Plants Recognize Their Siblings C．Plants’ Roots and Secretions D．A Research on Plants 2. What encouraged Bais to study the sibling recognition? A．Sea rocket. B．Plants’ sensing system. C．Biedrzycki’s thesis project. D．Dudley’s study. 3. What does the underlined word “painstaking” in Paragraph 4 probably mean? A．Important. B．Adventurous. C．Careful. D．Hardworking. 4.What can we infer from the last paragraph? A．The local garden center should be blamed when plants can’t grow well. B．The local garden center often sells low quality seeds to customers. C．Plants in the home garden can’t grow well because of the germ and seeds. D．Competing against strangers，plants in the home garden can’t grow well.
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