【正文】 ve us mobile data and the internet, and 4G made all of these things faster. With a 5G network, the short delay in information exchange will allow driverless cars to run more safely, as they will be able to municate in real time and avoid potential dangers. Meanwhile, 5G enabled wearable devices will keep doctors constantly updated on the health status of their patients and warn them immediately if there39。 Though 5G will make our lives more convenient, it will not be perfect. For one thing, 5G will not travel far. On 4 networks, you can be 10 kilometers away from the nearest transmission (傳輸) base and barely lose signal. But 5G will only cover about 300 meters, meaning we will need more transmitters so that we can get signals. And in order to use 5G, we will have to buy new specially, designed for 5G that are currently expensive.（1）What is the function of the first paragraph? provide a background of the topic. offer basic knowledge of the topic. use an example to support the topic. draw readers39。 （1）考查推理判斷。re watching stops every few minutes.”可知，第一段使用打開網(wǎng)頁時(shí)間長(zhǎng)且卡頓的例子來吸引讀者并引出主題。 （2）考查推理判斷。s something wrong. Besides, VR games will bee more popular with 5G. The short delay of 5G will make the games feel even more real.”可知，5G使無人汽車更安全；醫(yī)生更精準(zhǔn)獲取病人的所有這些都得益于5G傳輸速度的極大提高。故選C。根據(jù)最后一段中的“ And in order to use 5G, we will have to buy new product specially designed for 5G that are currently expensive.”可知，為了使用5G，目前需要購(gòu)買價(jià)格昂貴的與之配套的新產(chǎn)品。故選D?？v觀全文可知，文章從一個(gè)現(xiàn)象引出對(duì)于5G的討論，介紹了5G的優(yōu)勢(shì)和早期存在的缺陷，講述了5G將給人們生活帶來的影響。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解，推理判斷和主旨大意三個(gè)題型的考查，是一篇科技類閱讀，考生需要準(zhǔn)確掌握細(xì)節(jié)信息，同時(shí)根據(jù)上下文進(jìn)行邏輯推理，概括歸納，從而選出正確答案。NotreDame, the cathedral (大教堂) that serves as one of Paris39。CNN reports that over 400 firefighters have been sent to fight the fire, but that they may be unable to save the cathedral. Built in the 12th century, NotreDame houses several relics important to Catholics (天主教徒). NBC News reports that relics from Saint Genevieve and Saint Denis may been lost, together with a relic believed to be from Jesus Christ39。NotreDame is visited by a reported 30, 000 people a day and 13 million people per year. Its destruction represents a global cultural loss. This is just horrible, Mohamed Megdoul, 33, a film producer and witness to the fire told The Times, speaking through tears. A thousand years of history is being wiped away. This belonged to the whole world, and now it39。French President Emmanuel Macron expressed his sadness on Twitter. NotreDame of Paris in flames, reads an English translation of his statement. Emotion for a whole nation. Thoughts for all Catholics and for all the French. Like all our countrymen, I39。s a huge political loss to the world.39。s the purpose of writing the passage? report a disaster of NotreDame. express people39。 （1）考查細(xì)節(jié)理解。故選D。根據(jù)第三段中的“ Its destruction represents a global cultural loss ‘A thousand years of history is being wiped away. ’”可知,它的毀滅代表了全球文化的損失。wipe away“擦掉，破壞殆盡”。故選B。縱觀全文可知，本文是一篇新聞報(bào)道，文章報(bào)道了舉世聞名的法國(guó)巴黎圣母院發(fā)生火災(zāi)的相關(guān)信息。故選A。4．閱讀理解 More species are joining the ranks of the extinct every year. Many scientists believe we are living through an episode of remarkably rapid extinction, on a scale that has been seen only five times in the last half a billion years. Overhunting, overfishing, and humandriven habitat loss are pushing many species to the brink. In fact, we have changed the planet so much that some geologists are now suggesting that we have entered a new phase in Earth39。 an epoch they call the ＂Anthropocene＂. By 2100, it is expected that humans will have caused the extinction of up to half of the world39。 Because we are living through this extinction, it is relatively easy for us to study the driving forces behind it. But how do we determine what caused other mass dieoffs that happened long ago? To do so we have to look at what archaeologists, palaeontologists, geologists and other scientists have concluded from the evidence they have gathered. One of these mini extinction events happened towards the end of the Pleistocene, a few tens of thousands of years ago. It is sometimes called the ＂megafaunal＂ extinction because many of the species it claimed were particularly large animals, weighing more than 97lb (44kg). However, its cause remains a debate amongst scientists.（1）What can we learn about the sixth mass extinction？ A.B.It occurred towards the end of the Pleistocene.Scientists still disagree about the cause of it.（2）What can be inferred from the text about species？ A.B.About eight years later we will enter what is called the ＂Anthropocene＂.It is not easy for us to figure out causes behind the＂Anthropocene＂.（3）Which of the following is closest in meaning to the underlined word in the last paragraph ? A.Marine life.C.Flesheating creatures.【答案】（1）A（2）B（3）C 【解析】【分析】本文是一篇說明文，許多科學(xué)家認(rèn)為，我們正經(jīng)歷著地球史上第六次大規(guī)模物種滅絕，主要原因是人類的過度捕獵、過度捕撈和人類棲息地的喪失。(1)考查細(xì)節(jié)理解。(2)考查推理判斷。s current species.＂可知，到22世紀(jì)，地球還會(huì)有目前物種的1/2會(huì)滅絕，也就是10million的半，即five million，因此選B。根據(jù)最后一段中的＂because many of the species it claimed were particularly large animals, weighing more than 97lb (44kg).＂可推知 ＂megafaunal＂應(yīng)為大型動(dòng)物，因此選C。5．閱讀理解 Past studies have shown a link between sleeping less and weighing more, but scientists have had a tough time determining which came first, the chicken or the egg, says Julie C. Lumeng of the university of Michigan in Ann Arbor. In other words, it hasn39。 To get a better idea of which causes which, Lumeng and her colleagues interviewed the parents of 785 third graders from around the United States. The parents answered questions about how well their kids slept that year. Three years later, the parents answered the same questions. By sixth grade, 18percent of kids involved in the study were obese. race or gender. It also did