【正文】 al resources.The brainstorm of researchers.（3）Why do the scientists prefer to search for meteors in the ocean? A.B.They like to explore strange sea areas.They have better submarine equipment.（4）What does the author intend to do in the last paragraph? A.Give reasons to support a guess.C.Describe the process of the search.【答案】 （1）C（2）A（3）B（4）B 【解析】【分析】本文是一篇說(shuō)明文，科學(xué)家們發(fā)現(xiàn)了他們認(rèn)為是去年墜落地球的流星碎片。一場(chǎng)巨大的流星雨導(dǎo)致了在海中搜索的開(kāi)始。 （1）考查細(xì)節(jié)理解。故選C。根據(jù)第一段中的“Scientists have found what they believe are pieces of a meteor(流星)that fell to the earth last year.”可知，一場(chǎng)巨大的流星雨導(dǎo)致了在海中搜索的開(kāi)始。 （3）考查推理判斷。故選B。根據(jù)最后一段中的“The objects recovered from the bottom of the sea likely came from the recent explosion for two main reasons.”可知，作者在最后一段是想給出支持猜測(cè)的理由。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解和推理判斷兩個(gè)題型的考查，是一篇科普類(lèi)閱讀，考生需要準(zhǔn)確捕捉細(xì)節(jié)信息，并根據(jù)上下文進(jìn)行邏輯推理，從而選出正確答案。 During the winter of 2017, an 18year old college student named Canon Reeves spent much of his time trailing a kneehigh robot around Fayetteville, Arkansas, as it delivered Amazon packages to students. The robot, created by a startup called Starship Technologies in 2014, is basically a cooler on wheels。s job was to monitor how it handled various grounds, field ments from the public, and press the off switch if necessary. He said, People would also ask if it could deliver beer. It couldn39。 Broadly speaking, jobs of caring for robots fall under the umbrella of careers in automation, which include maintenance, engineering and programming. The demand for people with this skill set is considerable, with 20 million to 50 million new jobs to be expected in this category by 2030, according to the Mckinsey Global Institute. In the year that ended in June 2018, had almost three times the number of positions on the recruitment mittee that ended in June 2016.s campus while it delivered Red bull and other drinks to students. To retrieve (檢索) orders, the app encourages students to give the robot a wave。s digital eyes will roll depending on its mood. Rodriguez, who heads business development for the startup, was tasked, early on, with monitoring the KiwiBot for problems – even carrying it, should the motors fail. Since April 2018, though, the KiwiBot has largely been left unattended, and the majority of human interactions involve technical checks and loading food into the robot. To eliminate the boring work, the team is developing a restaurant robot to collect and load orders – which could happen in 2020. However, Rodriguez assured me that his staff won39。 Mckinsey estimates that millions of jobs globally could be lost to automation by 2030. A huge number of jobs will be produced as autonomous vehicles are released into the environment, Ramsey said. In 2016, Bosch started training students from Schoolcraft College, a munity college in Michigan, in autonomousvehicle repair。A factory robot.B.A restaurant robot.D.are in the category ofB.are in relation ofD.Autonomous vehicles will bee much cheaper.B.A lot of job opportunities will be created.D.Robot carers will have a petitive advantage in the future.B.We still need someone to look after robots in the future.D.本文以對(duì)相關(guān)信息進(jìn)行了介紹說(shuō)明。根據(jù)第一段中的The robot, created by a startup called Starship Technologies in 2014, is basically a cooler on wheels。也就是說(shuō)，Starship Technologies公司創(chuàng)造的是一款配送物品的機(jī)器人。 （2）考查詞義猜測(cè)。 （3）考查細(xì)節(jié)理解。故選C。該劃線(xiàn)句子的字面意思是：機(jī)器人保姆可能會(huì)覺(jué)得自己已經(jīng)獲得了未來(lái)的工作，但事實(shí)上，他們的位置可能會(huì)更好。故選A。7．閱讀理解 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. 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. 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. 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 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(zhuān)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。 （1）考查細(xì)節(jié)理解。釋放出的化學(xué)物質(zhì)更積極。故選D。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。故選C。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。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)。故選A。根據(jù)第二段中的“Dr. Chockalingam, a heart dise