【文章內(nèi)容簡(jiǎn)介】 urge us to eat healthy foods, get exercise, stop smoking and limit our alcohol intake. But there is something else you can do. And it is free and easy. Smile! Dr. Chockalingam, a heart disease specialist in Columbia, advises his patients to smile. He says a smile may be one way to help your heart. When we smile, the brain wiring changes. The chemicals that are released are more positive. He says smiling is the first step in fighting physical and emotional stress and its sometimes harmful effects on human health. This is not just New Age advice. Several studies support his opinion. When you feel stressed or under pressure, your body releases many natural hormones (荷爾蒙) including adrenaline and cortisol. Adrenaline increases your heart rate and blood pressure. Cortisol is the body39。s main stress hormone. It increases sugar in the bloodstream. If you are truly in danger, these hormones can help you. They are part of what we call our fightorflight response. However, when we are stressed for a long period, these stress hormones are everpresent in our bodies. And that, medical researchers warn, may lead to health problems. Researchers say the connection between stress and heart disease is still unclear. However, they claim that when people are stressed for long periods of time, they may have an unhealthy lifestyle, which can lead to health problems. Dr. Chockalingam says a smile may be one way to help. He tells his patients to smile 20 times an hour. To some, that might seem like a lot of smiling. Or some might even feel foolish ... smiling for seemingly no reason. But a smile does not involve drugs. It is not invasive like a surgical operation. It is free and it has no bad side effects. Once people smile, they are relaxing. This relaxation directly lowers blood pressure, improves sugar levels in the blood. If we are smiling, we are breaking that link between stress and health. And it just may provide a little extra protection to everyone39。s heart health.（1）Which of the following agrees with Dr. Chockalingam39。s opinion? has the same effects as laughter. can be used to take the place of medicine. is better than any healthy lifestyle to health. can make our body produce beneficial chemicals.（2）What can we know about the mentioned stress hormones? can lower our blood pressure. will surely lead to heart diseases. can benefit us when we are in danger. will make us live an unhealthy lifestyle.（3）Why does Dr. Chockalingam think smiling is helpful to our health? can make us relax. increases sugar levels. has little bad side effects. can happen for no reason.（4）What can be the best title for the text? Thorough Analysis of the Causes of Heart Diseases Thing You Can Do Right Now to Help Your Heart Thing That Is Closely Connected with Stress Hormones Clear Connection Between Unhealthy Lifestyles and Heart Diseases【答案】 （1）D（2）C（3）A（4）B 【解析】【分析】本文是一篇說(shuō)明文，哥倫比亞的心臟病專家Chockalingam博士建議多保持微笑，他認(rèn)為微笑可能是幫助心臟的一種方式。同時(shí)說(shuō)明了微笑有利于健康的原因和人們感到壓力時(shí)的身體反應(yīng)等情況。 （1）考查細(xì)節(jié)理解。根據(jù)第二段中的“When we smile, the brain wiring changes. The chemicals that are released are more positive.”當(dāng)我們微笑時(shí)，大腦的線路會(huì)發(fā)生變化。釋放出的化學(xué)物質(zhì)更積極?？芍珻hockalingam博士認(rèn)為微笑能使我們的身體產(chǎn)生有益的化學(xué)物質(zhì)。故選D。 （2）考查細(xì)節(jié)理解。根據(jù)第三段中的“If you are truly in danger, these hormones can help you.”如果你真的有危險(xiǎn)，這些荷爾蒙會(huì)幫助你?？芍?，當(dāng)我們處于危險(xiǎn)中時(shí)，壓力荷爾蒙可以幫助我們。故選C。 （3）考查細(xì)節(jié)理解。根據(jù)最后一段中的“If we are smiling, we are breaking that link between stress and health. And it just may provide a little extra protection to everyone39。s heart health.”如果我們微笑，我們就打破了壓力和健康之間的聯(lián)系。而且它可能會(huì)為每個(gè)人的心臟健康提供一點(diǎn)額外的保護(hù)?？芍?，Chockalingam博士認(rèn)為微笑可以使我們放松，從而有利于我們的健康。故選A。 （4）考查主旨大意。根據(jù)第二段中的“Dr. Chockalingam, a heart disease specialist in Columbia, advises his patients to smile. He says a smile may be one way to help your heart.”哥倫比亞的心臟病專家Chockalingam博士建議他的病人保持微笑。他說(shuō)，微笑可能是幫助心臟的一種方式。以及結(jié)合文章內(nèi)容主要介紹了微笑能夠讓我們放松進(jìn)而有利于我們的健康，所以要健康那就要多微笑，所以選B。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解和主旨大意兩個(gè)題型的考查，是一篇科研類閱讀，考生需要準(zhǔn)確掌握細(xì)節(jié)信息，并根據(jù)上下文的邏輯關(guān)系，進(jìn)行概括和歸納，從而選出正確答案。5．閱讀理解 In 2015, a man named Nigel Richards memorized 386, 000 words in the entire French Scrabble Dictionary in just nine weeks. However, he does not speak French. Richards39。 impressive feat is a useful example to show how artificial intelligence works—real AI. Both of Richard and AI take in massive amounts of data to achieve goals with unlimited memory and superman accuracy in a certain field. The potential applications for AI are extremely exciting. Because AI can outperform humans at routine tasks—provided the task is in one field with a lot of data—it is technically capable of replacing hundreds of millions of white and blue collar jobs in the next 15 years or so. But not every job will be replaced by AI. In fact four types of jobs are not at risk at all. First, there are creative jobs. AI needs to be given a goal to optimize. It cannot invent, like scientists, novelists and artists can. Second, the plex, strategic jobs—executives, diplomats, economists — go well beyond the AI limitation of singlefield and Big Data. Then there are the asyetunknown jobs that will be created by AI. Are you worried that these three types of jobs won39。t employ as many people as AI will replace? Not to worry, as the fourth type is much larger: jobs where emotions are needed, such as teachers, nannies and doctors. These jobs require passion, trust and sympathy—which AI does not have. And even if AI tried to fake it, nobody would want a robot telling them they have cancer, or a robot to babysit their children. So there will still be jobs in the age of AI. The key then must be retraining the workforce so people can do them. This must be the responsibility not just of the government, which can provide funds, but also of corporations and those who benefit most.（1）What is the main purpose of paragraph 1? A.To introduce the topic.B.To mention Nigel39。s feat.C.To stress the importance of good memory.D.To suggest humans go beyond AI in memory.（2）Which of the following best explains outperform underlined in paragraph 2? A.Be superior toB.Be inferior toC.Be sim