【文章內(nèi)容簡介】 D.the significance of the study（4）The text is most likely to appear in ________. A.a sports newspaperB.a biology textbookC.a science magazineD.a film review【答案】（1）A（2）B（3）D（4）C 【解析】【分析】本文介紹3D電影對人的大腦的益處。( 1 )細(xì)節(jié)理解題。根據(jù)第二段as a study has found that 3D films exercise the brain and improve shortterm functioning in a similar way to braintraining tests. 可知，看3D電影能鍛煉大腦。故選A。( 2 )推理判斷題。根據(jù)第二段But there may be a benefit to doing so, as a study has found that 3D films exercise the brain and improve shortterm functioning in a similar way to braintraining ，3D電影是一個(gè)促進(jìn)大腦力量的因素。故選B。( 3 )段落大意題。根據(jù)第八段第一句These findings are more significant than you might think（這些發(fā)現(xiàn)比你想象的更重要）可知，選D。( 4 )推理判斷題。3D電影是高科技產(chǎn)品，所以這篇文章最有可能出現(xiàn)在科學(xué)雜志上，故選C。4．閱讀理解 It is bad to have food stuck between your teeth for long periods of time. This is because food attracts germs。 germs produce acid, and acid hurts your teeth and gums. Flossing (使用牙線) helps to remove the food that gets stuck between your teeth. This explains why flossing helps to keep your mouth healthy, but some doctors say that flossing can also be good for your heart. It may seem strange that something you do for your teeth can have any effect on your heart. Doctors have e up with a few ideas about how flossing works to keep your heart healthy. One idea is that the germs that hurt your teeth can leave the mouth and travel into your that get into the blood can then attack your heart. Another idea is based on the fact that when there are too many germs in your mouth, the body tries to fight against there germs. For some reason, the way the body fights these mouth germs may end up weakening the heart overtime. Not every doctor agrees about these ideas. Some doctors think that the link between good flossing habits and good heart health is only a coincidence. The incidence (發(fā)生率) of two or more events is pletely random, as they do not admit of any reliable cause and effect relationship between them. For example, every time I wash my car, it rains. This does not mean that when I wash my car, I somehow change the weather. This is only a coincidence. Similarly, some doctors think that people who have bad flossing habits just happen to also have heart problems, and people who have good flossing habits just happen to have healthy hearts. The theory that flossing your teeth helps to keep your heart healthy might not be true. But every doctor agrees that flossing is a great way to keep your teeth healthy. So even if flossing does not help your heart, it is true to help your teeth. This is enough of a reason for everyone to floss their teeth every day.（1）From the passage, we know that ________.A.food stuck between your teeth may hurt your teethB.all of the doctors agree that flossing is good for your heartC.doctors39。 judgment about flossing is based on medical researchD.not every doctor thinks flossing helps to keep your teeth healthy（2）The underlined sentence in Paragraph 3 is to ________.A.provide an exampleB.make a parisonC.introduce a new topicD.develop the previous statement（3）Which of the following best states the main idea of the last paragraph?A.It is a fact that flossing can help your heart as well as your teeth.B.There is no good reason to believe that flossing will help your heart.C.Because doctors find flossing won39。t help your heart, it is useless to floss.D.Even if flossing is only good for your teeth, you should still do it every day.（4）Which is the best title for the passage?A.Flossing by CoincidenceB.How to Keep Your Teeth HealthyC.Flossing Habits and Healthy HeartsD.Why Doctors Disagree About Flossing【答案】 （1）A（2）D（3）D（4）C 【解析】【分析】本文提到經(jīng)過研究，剔牙與保持心臟之間沒有必然的聯(lián)系，但剔牙能保護(hù)牙齒的健康是可以肯定的。( 1 )推理判斷題。根據(jù)第一段提到It is bad to have food stuck between your teeth for long periods of time. This is because food attracts germs(細(xì)菌), germs produce acid, and acid hurts your teeth and gums.(長時(shí)間讓食物停留在牙齒是有害處的，這是因?yàn)槭澄锬芪?xì)菌，細(xì)菌會產(chǎn)生酸，腐蝕你的牙齒)，故選A項(xiàng)。( 2 )句意猜測題。Not every doctor agrees about these ideas不是每個(gè)醫(yī)生都對這些問題持相同的態(tài)度，Some doctors think that the link between good flossing habits and good heart health is only a , some doctors think that people who have bad flossing habits just happen to also have heart problems一些醫(yī)生認(rèn)為有剔牙習(xí)慣的碰巧有心臟問題，故是發(fā)展以前的觀點(diǎn)，因此選D項(xiàng)。( 3 ) 段落大意題。根據(jù)最后一段提到剔牙能保持你的心臟健康這一理論可能并不正確的，但醫(yī)生同意剔牙能保證牙齒的健康，因此即使剔牙不能有助于你的心臟，肯定能保護(hù)你牙齒，這就是每天剔牙的重要原因，故選D項(xiàng)。( 4 )主旨標(biāo)題題。本文提到經(jīng)過研究，剔牙與保持心臟之間沒有必然的聯(lián)系，但剔牙能保護(hù)牙齒的健康是可以肯定的，故選C項(xiàng)。5．閱讀理解 Oh my God, the robots are taking over! We39。re doomed! Doomed! Now that I39。ve gotten that out of my system, it39。s bee clear that while we may or may not be doomed, the robots are taking over. The latest example is the government39。s new guidelines for selfdriving cars. Tesla, Google and Uber are already testing driverless cars in cities across America. Uber chief executive Travis Kalanick is among those predicting that by 2021, selfdriving cars will play a big part in urban settings. Nearly 40,000 people died last year in this nation in automobilerelated accidents, and we believes driverless cars can save tens of thousands of lives annually. Makes sense. Robot drivers are less likely to get drunk, drive without a license, text while driving or feel agitated at the scene of a pileup. On the other hand, I wonder how these highly sensitive cars will react, with walkers constantly dashing into the street. Will they jam on the brakes every 10 seconds? But there39。s a bigger picture. Not only are robots replacing humans behind the wheel, but behind the work desk, in warehouses, senior homes, you name it. Robots aren39。t just taking over in the workplace. The question is, where can39。t a robot function better than a human? How about writing songs? A robot can go through every bination of notes in record time and e up with a pleasing melody. The lyrics might be a different story. Is a Gram