【正文】 telling them they have cancer, or a robot to babysit their children.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. 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. 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。 【點(diǎn)評】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。他說，微笑可能是幫助心臟的一種方式。 （4）考查主旨大意?？芍珻hockalingam博士認(rèn)為微笑可以使我們放松，從而有利于我們的健康。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。 （3）考查細(xì)節(jié)理解?？芍?，當(dāng)我們處于危險(xiǎn)中時(shí)，壓力荷爾蒙可以幫助我們。 （2）考查細(xì)節(jié)理解?？芍?，Chockalingam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)。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。同時(shí)說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。s heart health.（1）Which of the following agrees with Dr. Chockalingam39。 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. 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.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。 Experts note that an unhealthy lifestyle can put you at great risk of heart disease and stroke. So doctors 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! 【點(diǎn)評】本題考點(diǎn)涉及細(xì)節(jié)理解，詞義猜測，推理判斷和段落大意四個(gè)題型的考查，是一篇科研類閱讀，要求考生在捕捉細(xì)節(jié)信息的基礎(chǔ)上，進(jìn)一步根據(jù)上下文的邏輯關(guān)系，進(jìn)行分析，推理，概括和歸納，從而選出正確答案。 （4）考查詞義猜測。在大型公共場所，很難像機(jī)場那樣設(shè)置昂貴的安檢設(shè)施。s hard to set up expensive screening equipment like what39。根據(jù)第四段中的“noting its design can inspect bags or luggage without being an exposure to privacy.”可知，不用打開和檢查人們的個(gè)人物品，避免了侵犯隱私，可知選D。可知選B。 （1）考查段落大意。D.Discovering.B.Confirming.D. privacy.To make full use of WiFi.C.It protects personal information from being disturbed.（3）Why did the researchers study the device according to Yingying Chen? A.It uses antennas to pick up networks39。It saves people in danger of natural disasters.B.The benefit of the study findings.（2）What39。The principle the study is based on.B. The peerreviewed study, which recently won a best paper award at the 2018 IEEE Conference on Communications and Network Security, is now published online. Future work will continue to focus on ameliorating the accuracy of identifying objects and imaging shapes and volumes, researchers said.（1）What does paragraph 3 talk about? A.s hard to set up expensive screening equipment like what39。 It uses channel state information (CSI) that is readily available in lowcost WiFi devices. This could have a great impact on protecting the public from dangerous objects, said Yingying Chen, a coauthor of the study, There39。 The detection system analyzes what happens when wireless signals go through and bounce off objects or materials. The approach, which the paper states, works by separating the wireless interference(干擾)caused by two factors of objectsthe material and shape. Most dangerous objects such as weapons are usually metal or liquid, which have significant interference, researchers said. A study found wireless signals are able to pass through bags and suitcases to judge the sizes of dangerous metal objects and identify them. These items could include weapons, chemicals, laptops and batteries for bombs, the research team said on Tuesday. 【點(diǎn)評】本題考點(diǎn)涉及細(xì)節(jié)理解，詞義猜測，推理判斷和主旨大意四個(gè)題型的考查，是一篇科研類閱讀，要求考生在捕捉細(xì)節(jié)信息的基礎(chǔ)上，進(jìn)一步根據(jù)上下文的邏輯關(guān)系，進(jìn)行分析，推理，概括和歸納，從而選出正確答案。因此本文的最好的題目就是“狗能識別人的情緒”。第一段提出文章的主旨即“每個(gè)狗的主人都知道他們的狗狗能很好地讀懂他們的情緒，但科學(xué)家們一直有點(diǎn)懷疑。故選C。 （3）考查推理判斷。根據(jù)第五段中的They guess it may be because dogs find angry faces disgusting, causing them to withdraw quickly以及However可知，與前面意思相反，以及劃線詞后的disappear可知once the smart dogs realized they were getting rewarded, the trepidation seemed to disappear.…此句為，狗看到生氣的表情后會(huì)感到厭惡，并由此退縮，但是一旦聰明的狗意識到會(huì)有獎(jiǎng)勵(lì)之后，它們的恐懼以及退縮就會(huì)消失。故選D。 （1）考查細(xì)節(jié)理解。s happy or angry faces.（2）The underlined word trepidation in Paragraph 5 probably means ________. and hesitation and eagerness and happiness and sadness（3）According to the last paragraph, dogs with female owners ________. fond of the male faces uninterested in telling the emotions on the entire faces difficulty telling the moods on the faces of males only recognize emotions of females（4）What is the best title for this passage? Changes Influence Dogs Identify the Moods and Their Owners39。 They also found those being trained to read angry expressions took a longer time to learn. They guess it may be because dogs find angry faces disgusting, causing them to withdraw quickly. However, once the smart dogs realized they were getting rewarded, the trepidation seemed to disappear. In fact, the dogs had such a good time playing the puter game That scientists had a hard time keeping them away from the