【正文】 assessed reading prehension. The puters39。Tying in top place were Microsoft, the US software giant, and Alibaba, the Chinese tech group that began with emerce andlike its peers at home and abroadis ploughing more funds into AI, much of it via its research arm. per cent in providing exact matches to questionsthe tie provided a fitting symbol of the AI arms race between the US and China. While China39。Baidu made an early bet on AI, and is leading its rivals in autonomous driving. Tencent, which boasts just shy of 1 billion monthly active users on its social media WeChat app, and Alibaba have adopted AI in operations such as customizing news and ads, and are investing in new fields.（1）What does Luo Si think of Al39。 （1）考查推理判斷。 victory as ‘a(chǎn) milestone’. He said the technology has many uses, from customer service to museum tutorials to medical enquiressome of which are already being handled by chatbots (聊天機(jī)器人)他對(duì)人工智能評(píng)價(jià)很高，所以選C。根據(jù)第四段“In the test, panies subjected their artificial intelligence systems to queries from the Stanford Question Answering Dataset, which assessed reading prehension. The puters39。 （3）考查細(xì)節(jié)理解。故選C。根據(jù)最后一段中的“Baidu made an early bet on AI, and is leading its rivals in autonomous driving.”可知百度在無人駕駛汽車的 【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，是一篇科技類閱讀，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。Sleep, considered a luxury by many, is essential for a person39。s risk of developing severe medical conditions, such as obesity, diabetes, and cardiovascular diseases. Now, a new study by Boston39。Jeffrey Grossman, who led the research, was not trying to find the link between sleep and grades when he handed out Fitbits to the 100 students in his introduction to SolidState Chemistry class. Instead, the professor of Computational Materials Science hoped the popular wristworn device which, tracks a person39。However, the study, published in the journal “Science Learning” on October 1, 2019, discovered a surprising insight. Then was a straightline relationship between the average amount of sleep a student got and his/her grade on the 11 quizzes, three midterms, and the final exam administered during the semester. s the sleep you get during the days when learning is happening that matters most. t everything.”（1）What is the new finding about sleep? 39。s health. less may cause obesity. too much is dangerous. sleep leads to better grades.（2）What does the underlined word Fitbits in paragraph 2 refer to? devices.. equipment..（3）Which of the following best describes the final result the new study? ....（4）What will benefit students39。好的睡眠質(zhì)量是提高學(xué)習(xí)成績的關(guān)鍵。根據(jù)第一段中的“Now, a new study by Boston39。故選D。根據(jù)第二段中的“Instead, the professor of Computational Materials Science hoped the popular wristworn device which tracks a person39。可知Fitbits指的是一種可以穿戴的設(shè)備。 （3）考查推理判斷。故選D。根據(jù)倒數(shù)第二段中的“Instead, it39。t everything.”什么時(shí)候睡覺很重要。如果你在2點(diǎn)以后睡覺，即使你睡了7個(gè)小時(shí)，你的表現(xiàn)也會(huì)開始下降。故選C。 A 2018 report found that food waste would increase by a third to 2. 1billion tons by 2030. Beyond the cost of the waste itself, thrownaway food generates a gas that contributes to climate change. Tailormade meal kits cut waste by providing people with precise amounts of fresh ingredients(烹飪?cè)?for chosen recipes, meaning leftovers are minimized. But while thet overbuy and have less food waste. They finetune the amount of food to what they will actually eat. However, study found that even if delivery meal kits reduced food waste to zero, they would still use up more energy overall than buying the same food from the supermarket unless the energy used for the meal kit packaging was cut by a fifth. The packaging is a killer if it39。s glass bottles, like in the old days, we can get some benefits.（1）What can we learn about home delivery meal kits? can cut down on daily expenses. will totally solve the problem of food waste. can keep energy consumption to a minimum. will benefit the environment with reusable packaging.（2）What does the underlined word finetune in paragraph 3 mean? ....（3）The author suggests carrying meals with a delivery truck to__________. transport emissions more food only in the supermarket car trip distances（4）What39。s attitude to meal kits? ....【答案】 （1）D（2）B（3）A（4）C 【解析】【分析】本文是一篇說明文，套餐可以減少食物浪費(fèi)，但包裝是個(gè)問題。 （1）考查細(xì)節(jié)理解?？梢缘弥衫玫陌b對(duì)環(huán)保有益。 （2）考查詞義猜測(cè)。根據(jù)“They finetune the amount of food to what they will actually eat. ”人們可以根據(jù)將要吃多少來調(diào)整食物數(shù)量。 （3）考查推理判斷。 frequently. If people only go and buy such goods as soap and toilet paper，they may only have to visit once every couple of months. A delivery truck can carry meals for a lot of people in the neighborhood. So dozens of car trips might be replaced with one truck trip.”可知餐盒可以減少對(duì)交通排放，運(yùn)送卡車可以一次給小區(qū)很多人送餐飯，減少交通排放。 （4）考查推理判斷。s glass bottles，like in the old days，we can get some benefits.”但是如果這些包裝能夠被再利用，對(duì)我們還是會(huì)有一些益處的。故選C。5．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, geologist