届二轮复习七选五专题卷2.docx

1、届二轮复习七选五专题卷2二轮专题 七选五（2）Passage 1根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。The Science of RiskSeekingSometimes we decide that a little unnecessary danger is worth it because when we weigh the risk and the reward，the risk seems worth taking._1_ Some of us enjoy activities that would surprise and scar

2、e the rest of us.Why? Experts say it may have to do with how our brains work.The reason why any of us take any risks at all might have to do with early humans.Risktakers were better at hunting，fighting，or exploring._2_ As the quality of risktaking was passed from one generation to the next，humans en

3、ded up with a sense of adventure and a tolerance for risk.So why arent we all jumping out of airplanes then? Well，even 200，000 years ago，too much risktaking could get one killed.A few daring survived，though，along with a few stayinthecave types.As a result，humans developed a range of character types

4、that still exists today.So maybe you love car racing，or maybe you hate it._3_No matter where you are on the riskseeking range，scientists say that your willingness to take risks increases during your teenage years._4_ To help you do that，your brain increases your hunger for new experiences.New experi

5、ences often mean taking some risks，so your brain raises your tolerance for risk as well._5_ For the riskseekers a part of the brain related to pleasure becomes active，while for the rest of us，a part of the brain related to fear becomes active.As experts continue to study the science of riskseeking，w

6、ell continue to hit the mountains，the waves or the shallow end of the pool.AIt all depends on your character.BThose are the risks you should jump to take.CBeing better at those things meant a greater chance of survival.DThus，these wellequipped people survived because they were the fittest.EThis is w

7、hen you start to move away from your family and into the bigger world.FHowever，we are not all using the same reference standard to weigh risks and rewards.GNew brain research suggests our brains work differently when we face a nervous situation.【语篇导读】本文为说明文。主要探讨了为什么某些人喜欢冒险，它们冒险的动机是什么等。1F根据空前面的“weigh

8、 the risk and the reward”可以看出和F项中的“weigh risks and rewards”对应，同时F项与空格前面的一句话之间是转折关系，句意衔接紧密，故选F。2C根据空前面的“better at hunting，fishing，or exploring”可以看出和C项中的“Being better at those things”相呼应。故选C项。3A空格前第二句中出现character types与A选项中的character相对应；空格前一句中的you 与选项中的your在人称上保持一致，空格前一句中动词love与hate和A选项中的depends on保持对

9、应，故选A项。4E空格前一句出现了teenager years 与E选项当中的this 相对，另外E选项当中提到 move away from family into the bigger world也是对空格前一句中的teenager years的解释。故选E项。5G空格后一句中提及pleasure和fear，是从正反两方面进行对比，对应G项中的differently，再根据空格后一句中出现的riskseeker，brain，us等词与选项G中的nervous situation，our brains相对应，故选G项。Passage 2根据短文内容，从短文后的选项中选出能填入空白处的最佳选项

10、。选项中有两项为多余选项。Both men and women are living longer these days in industrialized countries._1_In general, they can expect to live six or seven years more than men.One reason for this is biological.One important biological factor that helps women live longer is the difference in hormones between men an

11、d women._2_Between the ages of about 12 and 50, women produce hormones that are involved in fertility(生育能力)These hormones also have a positive effect on the heart and the blood flow.In fact, women are less likely to have high blood pressure or to die from heart attacks._3_They help the body defend i

12、tself against some kinds of infections.This means that women generally get sick less often and less seriously than men.The common cold is a good example: women, on average, get fewer colds than men._4_Scientists are still not exactly sure how genes influence aging, but they believe that they do.Some

13、 think that a womans body cells have a tendency (倾向) to age more slowly than a mans.Others think that a mans body cells have a tendency to age more quickly._5_AHowever, women, on average, live longer.BThe biological factor plays an important part.CWomen are also helped by their female genes.DThe fem

14、ale hormones also protect the body in another way.ERecent research seems to support both of these possibilities.FTherefore, women are more healthy than men and can live a better life.GHormones are chemicals which are produced by the body to control various body functions.【语篇导读】这是一篇说明文。介绍了女性比男性寿命长的原因

15、。1A上下文过渡句。根据空后的“they can expect to live six or seven years more than men”可知，这是对空格处作进一步的说明。2G上下文过渡句。空格前句说明女性比男性寿命长的原因在于“hormones”的不同，接着对“hormones”作进一步的解释。3D上下文过渡句。空后三句主要讲述雌激素在抵抗疾病方面的作用。4C上下文过渡句。空后主要讲述基因与年老的关系。C项中的genes与空后句中的genes是原词复现。5E细节支撑句。空前讲述了科学家们的两种不同观点，E项中的“both of these possibilities”指的就是这两种不

16、同观点。Passage 3 根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。AGet involved in student activitiesBYour voice is actually super importantCThere is a significant increase of opportunitiesDStay in active communication with your friendsEGet smart about the people who you spend your time withFYour major does