【正文】 the situation was particularly terrible. The lieue (former measure of distance), for example, varied from just over 3 km in the north to nearly 6 km in the south.me International d39。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. Now the International Bureau of Weights and Measures in Paris is set to give the metric system its biggest shakeup yet.s measurement bodies are almost certain to approve a decision that will mean four out of the seven base SI units, including the kilogram, will follow the other three, including the metre, in being redefined in terms of the values of physical constants (物理常數(shù)).Each of the chosen constants has been measured incredibly precisely, which would mean that from May 20th 2019 the constants will themselves be fixed at their current values for ever. Any laboratory in the world will then be able to measure, for example, the mass of an object as precisely as the accuracy of their equipment will allow.（1）What does Paragraph 1 mainly tell us? went before libra in measurement. things used to be adopted as measures. were accepted as measures by the Romans. measurement systems were gradually formed.（2）How does the author develop the second paragraph? time order. analysis. space order. parison.（3）Which of the following countries used SI as an official measurement? ....（4）What will the world39。 （1）考查推理判斷。故選B。根據(jù)第二段中的“The king39。故選D。根據(jù)第三段中的“it was the French who in 1799 made it law和The Syst232。Unit233。國際單位制是現(xiàn)時世界上最普遍采用的標準度量衡單位系統(tǒng)，采用十進制進位系統(tǒng)。 （4）考查細節(jié)理解。s measurement bodies are almost certain to approve a decision that will mean four out of the seven base SI units...will follow the other three...in being redefined in terms of the values of physical constants”可知，在法國凡爾賽宮召開的會議上，七個基本計量單位中的四個將被重新定義，其中包括對千克的重新定義。 【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，是一篇科普類閱讀，考生需要準確捕捉細節(jié)信息，同時根據(jù)上下文進行邏輯推理，從而選出正確答案。 Migratory birds (候鳥) flood back to where they reproduce every spring. That migratory behavior is acpanied by some human behavior. In Englishlanguage Wikipedia (維基百科), the online searches for migratory species tend to increase in spring when those birds arrive in the United States, said the lead author John Mittermeier. This finding suggests new ways to monitor changes in the world39。 Mittermeier is encouraged by the search results. He mented, I think there39。re not interacting with native species anymore. And so in that sense, it was really exciting and quite unexpected for me to see people39。 Richard Grenyer, Associate Professor from the University of Oxford, says search data is useful to conservation biologists, 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.（1）What have researchers found about species searches? strengthen ties among people. affect the animal movements. differ in language backgrounds. reflect animal migration seasons.（2）What is the purpose of writing Paragraph 3? summarize the research process. further support the research findings. show the variety of species searches. present researchers39。s service. about Wikipedia behavior. at people39。s not getting close to nature.（4）Why does Richard think such search data is useful? helps to aim at conservation targets. increases interest in big data approaches. keeps track of trends in biologists39。他們的在線物種搜索遵循季節(jié)性動物遷徙的模式。它還展示了一種新的方式來了解人們有多關心自然，以及哪些物種和地區(qū)可能是最有效的保護目標。根據(jù)第一段中的“Their online species searches follow the patterns of seasonal animal migrations (遷徙).”可知關于物種搜索，研究人員發(fā)現(xiàn)了他們遵循季節(jié)性動物遷徙的模式。 （2）考查推理判斷。即第三段的寫作目的是為了進一步支持研究結(jié)果。 （3）考查細節(jié)理解。s Wikipedia interest closely related to changes in nature”可知Mittermeier看到人們對維基百科的興趣是與大自然的變化密切相關的，感到非常興奮和意外。 （4）考查細節(jié)理解。即他認為這些搜索數(shù)據(jù)可以有助于設定保護目標。 【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，要求考生在捕捉細節(jié)信息的基礎上，根據(jù)上下文進行邏輯推理，從而選出正確答案。 s green. So what39。 In 1800 when a Scottish headmaster named James Pillans wanted his students to draw maps, the students couldn39。 The color change came in the 1960s when panies sold, steel plates, coated with green enamel (漆) instead of the traditional dark slate. The new material was lighter and less fragile than the first blackboards, so they were cheaper to ship and more likely to survive the journey. Teachers weren39。Blackboard.Chalkboard.Greenboard.Mini board.（2）Why did the headmaster ask the students to put their mini boards together? A.To make enough space.C. attention.D. interest.（3）Which of the following is NOT the advantage of the greenboard? A.re lighter in weight.B.re more convenient to transport.C.re easier to erase the powder.D.re more useful than the traditional ones.（4）What39。Introduction of the blackboard.B.Color of the blackboard.D.回答了黑板為什么是綠色的？這個問題。根據(jù)第一段中的，...late 18thcentury students used their own mini boards made of slate (石板) or painted wood...可知，18世紀的學生用的是“迷你板”。 （2）考查推理判斷。In 1800 when a Scottish headmaster named James Pillans wanted his students to draw maps, the students couldn39?？芍ｉL讓學生把他們的迷你板拼湊在一起是為了創(chuàng)造一個大的空間來畫地圖。 （3）考查細節(jié)理解。故選D。文章第一段前四句話點明了文章中心：我們看到的黑板大多是綠色的，為什么叫黑板？通讀全文也可知文章主要講述了黑板發(fā)展過程中顏色從黑色變成綠色的過程和原因。 【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，是一篇科普類閱讀，要求考生在捕捉細節(jié)信息的基礎上，進一步根據(jù)上下文的邏輯關系，進行分析，推理，概括和歸納，從而選出正確答案。 names and roles on their caps. At first, his colleagues didn39。 I went to a theatre where there were about 20 doctors and nurses in the room, Dr. Rob Hackett said. I struggled to even ask to be passed some gloves because the person I was pointing to thought I was pointing to the person behind them, because I don39。s life for a second. At the moment, effective munications are important.Thea