【正文】 By dragging satellites up to 10 meters long.D.D.Collecting wastes existing in space.Demonstrating space technology.There are still enormous barriers to clear before operational cleanup tasks are underway, he said, and the most discouraging is figuring out how to fund such projects.The RemoveDEBRIS satellite will conduct a few more experiments in the ing months, including testing navigation features that could help guide the satellite to a specific piece of debris.Jonathan McDowell, an astrophysicist at the HarvardSmithsonian Center for Astrophysics, said the success of this week39。 The RemoveDEBRIS experiment is run by a pany and researchers led by the U. K.39。 An experimental cleanup device called RemoveDEBRIS has successfully cast a net around a dummy (仿真的) satellite, imitating a technique that could one day collect spaceborne garbage. 【點(diǎn)評(píng)】本題考點(diǎn)涉及推理判斷題型的考查，是一篇科研類閱讀，要求考生根據(jù)上下文進(jìn)行分邏輯推理，從而選出正確答案。為了證實(shí)是否可能，研究人員養(yǎng)了18只這種鵝，并在大型風(fēng)洞中訓(xùn)練它們飛行。s not clear whether these adaptations alone are what make it possible to fly the 8 hours it takes to climb over Mount Everest. 可知，目前尚不清楚的是，只有這些適應(yīng)性變化能否可以飛行8小時(shí)爬上珠穆朗瑪峰。這兩處綜合推斷出，鵝可以在最低濃度的氧氣中生存。 （2）考查推理判斷。再根據(jù)最后一段中的So it39。結(jié)果發(fā)現(xiàn)這種鵝可以在氧氣極低的情況下飛行，但停留時(shí)間只有幾分鐘，因此能否飛過珠峰尚不明確。Whether they have muscles pumped more oxygen to.C.The geese managed to breathe less when their blood decreased.C.To confirm they could fly over Mount Everest.C. In 1953, a mountain climber reported seeing a barheaded goose soar over the peak of Mount Everest (珠穆朗瑪). It was thought impossible. Now researchers who raised 19 of the geese—named for the black stripes on the backs of their heads—have shown the birds really fly so high. 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解，句義猜測和推理判斷三個(gè)題型的考查，是一篇科研類閱讀，要求考生準(zhǔn)確掌握細(xì)節(jié)信息，同時(shí)根據(jù)上下文的邏輯關(guān)系，進(jìn)行分析，推理，從而選出正確答案。 （4）考查推理判斷?；羧A德說有中學(xué)數(shù)學(xué)知識(shí)就足夠了。 （3）考查句義猜測。 （2）考查細(xì)節(jié)理解。simplifying software development may result in unexpected outes【答案】 （1）D（2）C（3）A（4）D 【解析】【分析】本文是一篇說明文，人工智能的深度學(xué)習(xí)被證明很有用，霍華德和數(shù)學(xué)家托馬斯一起創(chuàng)辦的非營利性教育機(jī)構(gòu)致力于讓深度學(xué)習(xí)變得簡單。. A.boring（4）It can be inferred from the last paragraph that C.D.It attracts rock stars to practice.C.s top universities. Earning one takes years and requires a personality suited to academia, which is rare among more normal folk. Over the past five years researchers in artificial intelligence have bee the rock stars of the technology world. A branch of AI known as deep learning, which uses neural(神經(jīng)的) networks to scan through large volumes of data looking for patterns, has proven so useful that skilled practitioners can mand high sixfigure salaries to build software for Amazon, Apple, Facebook and Google. 【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)確捕捉細(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。 （4）考查主旨大意。根據(jù)最后一段中的“The next step in the research will be to test RAS39。Older adults have benefited from RAS.【答案】 （1）A（2）B（3）C（4）B 【解析】【分析】本文是一篇說明文，介紹了一款由美國華盛頓州立大學(xué)的科學(xué)家們研發(fā)的機(jī)器人，可以幫助那些癡呆或有身體缺陷的老年人在家里過上自立的生活。Smart Home Tests first elderCare robot.C.D.Optimistic.s Minor39。B.Through their daily activities.（2）What can we know about RAS? A.B. While we are still in an early stage of development, our initial results with RAS have been promising, Minor said. The next step in the research will be to test RAS39。 A robot created by Washington State University (WSU) scientists could help elderly people with dementia (癡呆) and other limitations live independently in their own homes. 【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。實(shí)驗(yàn)?zāi)康氖强纯带B類的視角是否能提供幫助。根據(jù)最后一段中的“It seemed that the strikingly iridescent surfaces on our targets visually broke up the otherwise recognizable shape of the targets, which made them hard to distinguish.”似乎我們的目標(biāo)上驚人的彩虹表面在視覺上打破了原本可以辨認(rèn)的目標(biāo)形狀，這使得它們很難區(qū)分。catching colors could be used as a cover173。Shining colors as a sexual strategy【答案】 （1）D（2）C（3）C（4）B 【解析】【分析】本文是一篇說明文，介紹了彩虹色有助于生物隱藏。Why birds are not effected by iridescent insects.D.If a circle, with a sugar reward, is iridescent, the bees may have difficulty finding itD.D.live a little longer by escaping their predator(捕食者)s concealment39。up isn39。3．犇犇閱讀理解 根據(jù)最后一段中的“By using these big data approaches, we can direct our attention towards the difficult questions in modern conservation: which species and areas are changing, and where are the people who care the most and can do the most to help.”可知Richard認(rèn)為通過使用這些大數(shù)據(jù)方法，我們可以將我們的注意力轉(zhuǎn)向現(xiàn)代保護(hù)中的難題:哪些物種和地區(qū)正在發(fā)生變化，哪些人最關(guān)心這些問題，哪些人能夠提供最多的幫助。根據(jù)倒數(shù)第二段中的“it was really exciting and quite unexpected for me to see people39。根據(jù)第三段中的“Seasonal trends seemed to be widespread in Wikipedia behavior for many species of plants and animals.”可知在維基百科上，許多動(dòng)植物的行為似乎都有季節(jié)性趨勢。 （1）考查細(xì)節(jié)理解。 work. pushes people to solve difficult problems.【答案】 （1）D（2）B（3）C（4）A 【解析】【分析】本文是一篇說明文，牛津大學(xué)的一個(gè)國際研究小組發(fā)現(xiàn)，人們使用互聯(lián)網(wǎng)的方式與自然界的季節(jié)性運(yùn)動(dòng)密切相關(guān)。 heavy work load.（3）How does Mittermeier feel about the search results? with Wikipedia39。s Wikipedia interest closely related to changes in nature. An international team of researchers from the University of Oxford have found that the way people use the Internet is closely tied to the seasonal movements in the natural world. Their online species searches follow the patterns of seasonal animal migrations (遷徙).2．犇犇閱讀下面文章，然后從題中所給的A、B、C、D四個(gè)選項(xiàng)中，選出每個(gè)問題的最佳選項(xiàng)。根據(jù)最后一段中的“At a meeting in Versailles, France, on November 16th, 2018, the world39。s (SI, or the metric system, as it is better known)developed from it and became the official measurement in all countries except Myanmar, Liberia and the United States ”可知，在所給出的四個(gè)國家中，只有法國采用國際單位制(SI)。 （3）考查細(xì)節(jié)理解。 （2）考查推理判斷。s measurement bodies achieve at the meeting held in Versailles? will e up with seven new SI units. will set May 20th as a new international festival. will redefine four SI units including the kilogram. will decide on a new measure used in the laborat