【正文】 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. 【點評】本題考點涉及細節(jié)理解，推理判斷和主旨大意三個題型的考查，是一篇科研類閱讀，要求考生在捕捉細節(jié)信息的基礎(chǔ)上，進一步根據(jù)上下文的邏輯關(guān)系，進行分析，推理，概括和歸納，從而選出正確答案。發(fā)表在《科學進展》(Science Advances)雜志上的這項新研究將蜜蜂也列入了這一名單。 （4）考查主旨大意?？芍卵芯康陌l(fā)現(xiàn)說明了在更多的物種中發(fā)現(xiàn)了數(shù)字認知。根據(jù)倒數(shù)第二段中的“Many species can understand the difference between quantities and use this to search for food, make decisions and solve problems. But numerical cognition, such as exact number and arithmetic operations, requires a more plex level of processing.”許多物種都能理解數(shù)量之間的差異，并以此來尋找食物、做出決定和解決問題。故選B。根據(jù)第五段中的“If math doesn39。故選D?！笨芍?，RMIT大學 的 （1）考查細節(jié)理解。此前的研究表明，一些靈長類動物、鳥類、嬰兒甚至蜘蛛都可以加減法。Numerical Cognition Requires a Complex Level of ProcessingD.A Discovery About the Tiny Brain of BeesB.Numerical cognition has been found in many more species.D.Bees can recogize the exact number.B.only involves their shortterm working memoryD.requires addition and subtraction two plex processingB.Bees can do basic mathematics.（2）According to Adrian Dyer, bees39。Longterm rules and short term working memory.C. Previous studies have shown some primates (靈長目動物), birds, babies and even spiders can add and/or subtract. The new research, published in Science Advances, adds bees to that list.（1）What have the researchers from RMIT University discovered? A.t require a massive brain, there might also be new ways for us to include interactions of both longterm rules and working memory in designs to improve rapid AI learning of new problems,” said Dyer. The findings suggest that advanced numerical cognition (認知) may be found much more widely in nature among nonhuman animals than previously suspected. RMIT39。 Researchers have found bees can do basic mathematics, in a discovery that deepens our understanding of the relationship between brain size and brain power. Recently, A study conducted by researchers from RMIT University in Melbourne, Australia showed that bees could perform arithmetic operations like addition and subtraction (減法). 【點評】本題考點涉及細節(jié)理解，詞義猜測和推理判斷三個題型的考查，是一篇科研類閱讀，要求考生在捕捉細節(jié)信息的基礎(chǔ)上，進一步根據(jù)上下文的邏輯關(guān)系，進行分析，推理，從而選出正確答案。可知回巢族孩子現(xiàn)象的副作用是在少數(shù)情況下，緊張情緒會導致父母和孩子之間偶爾發(fā)生爭吵。根據(jù)倒數(shù)第二段中的‘However’, the study says, ‘daytoday tensions about the prospects of achieving different dimensions of independence, which in a few extreme cases came close to conflict”可知對于實現(xiàn)不同層面獨立前景的日常緊張情緒，是大多數(shù)家長和略多于一半畢業(yè)生經(jīng)歷的特征。由此推斷出，孩子們很難找到一份滿意的工作，故選C。 （4）考查推理判斷。 financial and emotional support.”參與這項研究的年輕人對于搬回家“比預期的更積極”——他們的羞愧感減少了，因為他們的許多朋友都處于同樣的處境，而且他們承認父母在經(jīng)濟和情感上的支持是有好處的。 （3）考查細節(jié)理解。即可推理劃線部分單詞trigger意為“導致，致使”，與cause意義一致。根據(jù)第二段中的“The findings disagree with the research published earlier this year showing that returning adult children trigger a significant worsening in their parents39。可知，以往的研究顯示，返鄉(xiāng)的成年子女會導致父母的生活質(zhì)量和幸福感比之前更差，故選C。根據(jù)第二段中的“The findings disagree with the research published earlier this year showing that returning adult children trigger a significant worsening in their parents39。父母和孩子對于獨立的緊張情緒會導致父母和子女之間偶爾的爭吵。There are occasional quarrels between parents and children.【答案】 （1）C（2）A（3）B（4）C（5）D 【解析】【分析】本文是一篇說明文，一項研究發(fā)現(xiàn)，“回巢族”子女在大學畢業(yè)后回到父母身邊生活對家庭是有好處的，他們會與父母建立更親密、更具支持性的關(guān)系，并增進兩代人之間的聯(lián)系。Neither parents nor children want to do the chores at home.C.There is more house work needed to be done by the children.（5）What is the side effect of the boomerang children phenomenon? A.The parents are willing to provide support to their children.C.They are proud to be independent from the family.（4）What can be inferred as the reason for the boomerang children phenomenon? A.They are glad that they could e back.C.allow（3）What is the attitude of the college graduates towards returning home? A.C.defeatBoomerang children never did any housework.（2）The underlined word trigger in Paragraph 2 may be best replaced by ________. A.The parents39。The parents were looking forward to their children39。 Areas of disagreement included chores, money and social life. While parents were keen to help, they also wanted different relationships from those they had with their own parents, and continuing to support their adult children allowed them to remain close.（1）What is the finding of the previous research? A. The families featured in the study were middleclass and tended to view the achievement of adult independence for their children as a family project. Parents accepted that their children required support as university students and then as graduates returning home, as they tried to find jobs paying enough to enable them to move out and get on the housing la