【正文】 好的跡象，至少從你患老年癡呆癥,的可能性來看，可知選C。 （3）考查細節(jié)理解。根據(jù)第四段中的“ It is an objective marker of the sort of reduced brain function that goes along with expected, glucose uptake was reduced in those with AD. ”這是一個患有老年癡呆癥降低了腦功能的客觀標志。正如所料，老年癡呆癥患者的葡萄糖吸收降低，故選B。 （4）考查推理判斷。縱觀全文可知，是一項科學(xué)研究，介紹了如何預(yù)測你的記憶喪失是否是老年癡呆癥,故選C。 【點評】本題考點涉及細節(jié)理解和推理判斷兩個題型的考查，是一篇科研類閱讀，考生需要準確掌握細節(jié)信息，并根據(jù)上下文進行邏輯推理，從而選出正確答案。7．犇犇閱讀理解 Environmental experts warn that our planet is drowning in plastic. The world39。s cities produce 2 billion tons of trash every year. By the year 2050 that number is expected to rise to 3 billion tons. The World Bank estimates that the largest amount of trash today, about 44 percent, is plastic. But we often have to buy packaged goods. And often that packaging is made of plastic. Now, that may be changing. A new environmentallyfriendly shopping model was recently launched at the World Economic Forum in Davos, Switzerland. This shopping model, called Loop, aims to replace throwaway containers with reusable ones. Loop is the idea of Terra Cycle, an Americanbased recycling pany. Its chief, Tom Szaky told the Associated Press (AP) that removing plastics from the ocean is not enough. He said the point is to get away from singleuse packages. Szaky said that Loop is the future of shopping. But it es from an idea of the past. He pared it to the milkman model of the 1950s in the United States. Back then, someone brought milk to your doorstep in glass bottles and then left with empty bottles. These could be cleaned and used again. The result is zerowaste. Jennifer Morgan from the environmental nonprofit organization Greenpeace also joined in the discussion about Loop at Davos. She said that Greenpeace weles the aim of the Loop Alliance to move away from throwaway culture and disposability. But Morgan questioned whether panies worldwide are ready to change their business models. Loop is set to launch later this year in three eastern . states, and also in Paris, France and some of the surrounding area. Then Loop plans to expand to the . West Coast, Toronto, Canada and Britain by the end of this year or 2020.（1）What does the author intend to do in Paragraph 2? A.Provide background information.B.Advocate zerowaste lifestyle.C.Explain the reason for trash.D.Introduce a new topic.（2）Where does the idea Loop e from? A.The World Economic Forum.B.Demand of some panies.C.Zerowaste model.D.The milkman model.（3）Which countries is Loop expected to expand to by 2020? A.United States and Switzerland.B.Switzerland and Britain.C.Canada and Britain.D.France and Canada.（4）What is the text mainly about? A.A new shopping model.B.The development of future city.C.The world39。s environmental issue.D.The concerns of future shopping.【答案】 （1）A（2）C（3）D（4）A 【解析】【分析】本文是一篇說明文，介紹美國一家公司推出一種新的零浪費購物模式。 （1）考查推理判斷。根據(jù)第二段“The world39。s cities produce 2 billion tons of trash every year. By the year 2050 that number is expected to rise to 3 billion tons. The World Bank estimates that the largest amount of trash today, about 44 percent, is plastic. But we often have to buy packaged goods. And often that packaging is made of plastic.”可知，世界上的城市每年產(chǎn)生大量的垃圾，并且其中最大的垃圾量是塑料，結(jié)合下文可知，作者寫本段目的是為下文提出新的購物模式提供背景信息。故選A。 （2）考查細節(jié)理解。根據(jù)第四段中的“Szaky said that Loop is the future of shopping. But it es from an idea of the past.”和第五段“He pared it to the milkman model of the 1950s in the United States. Back then, someone brought milk to your doorstep in glass bottles and then left with empty bottles. These could be cleaned and used again. The result is zerowaste.”可知，Loop購物模式的想法來自于過去送奶工模式，是一種可以杜絕零浪費的模式。故選C。 （3）考查細節(jié)理解。根據(jù)最后一段“Loop is set to launch later this year in three eastern . states, and also in Paris, France and some of the surrounding area. Then Loop plans to expand to the . West Coast, Toronto, Canada and Britain by the end of this year or 2020.”可知，Loop計劃在2020年前將業(yè)務(wù)擴大到加拿大和法國。故選D。 （4）考查主旨大意。根據(jù)第三段中的“A new environmentallyfriendly shopping model was recently launched at the World Economic Forum in Davos, Switzerland.”及全文內(nèi)容可知，文章主要介紹美國一家公司推出一種新的零浪費購物模式。故選A。 【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，是一篇環(huán)保類閱讀，考生需要準確掌握細節(jié)信息，并根據(jù)上下文進行邏輯推理，概括歸納，從而選出正確答案。8．閱讀理解 It39。s mon knowledge that the woman in Leonardo da Vinci39。s most famous painting seems to look back at observers, following them with her eyes no matter where they stand in the room. But this mon knowledge turns out wrong. A new study finds that the woman in the painting is actually looking out at an angle that39。s degrees off to the observer39。s right173。well outside of the range that people normally believe when they think someone is looking right at them. In other words, said the study author, Horstmann, She39。s not looking at you. This is somewhat ironic, because the entire phenomenon of a person39。s gaze (凝視) in a photograph or painting seeming to follow the viewer is called the Mona Lisa effect . That effect is absolutely real, Horstmann said. If a person is illustrated or photographed looking straight ahead, even people viewing the portrait from an angle will feel they are being looked at. As long as the angle of the person39。s gaze is no more than about 5 degrees off to either side, the Mona Lisa effect occurs. This is important for human