【文章內(nèi)容簡(jiǎn)介】 erranean traders for centuries used the weight of grains of wheat to define (定義) their units of mass. The Romans used libra, forerunner of the pound, by referring to the weight of a carob (角豆樹) seed. The sizes of similarly named units could also differ. The king39。s foot, used in France for nearly 1, 000 years after its introduction by Charlemagne in around 790 AD, was, at , around a centimeter shorter than the Belgic foot, used in England until , Egyptian and Babylonian versions of water in a fixed container varied from one another by a few kilos, Nor was there agreement on such things within countries. In France, where there was no unified (統(tǒng)一的) measurement system at the national level, 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. Although John Wilkins, an Englishman, first put forward a decimal system (十進(jìn)制) of measurement in 1668, it was the French who in 1799 made it law. The Syst232。me International d39。Unit233。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. At a meeting in Versailles, France, on November 16th, 2018, the world39。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。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 laboratory.【答案】 （1）B（2）D（3）A（4）C 【解析】【分析】本文是一篇說明文，法國(guó)凡爾賽宮舉辦的國(guó)際計(jì)量大會(huì)，將對(duì)目前使用的國(guó)際單位制中的四個(gè)基本單位進(jìn)行重新定義，其中包括對(duì)千克的重新定義。 （1）考查推理判斷。根據(jù)第一段中的“man has been the measure of many, if not all, things ”以及下文提到的用作計(jì)量單位的手、腳、谷物重量和參考角豆種子重量的磅可知，本段主要講述了不同的東西被用作計(jì)量單位。故選B。 （2）考查推理判斷。根據(jù)第二段中的“The king39。s foot ...around a centimetre shorter than the Belgic foot”和“Greek, Egyptian and Babylonian versions of water in a fixed container varied from one another by a few kilos,以及The lieue (former measure of distance), for example, varied from just over 3 km in the north to nearly 6 km in the south”可推知，本段作者主要運(yùn)用了對(duì)比的寫作方法，把同一計(jì)量單位在不同國(guó)家之間或者在同一國(guó)家不同區(qū)域間的差異進(jìn)行了說明。故選D。 （3）考查細(xì)節(jié)理解。根據(jù)第三段中的“it was the French who in 1799 made it law和The Syst232。me International d39。Unit233。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(guó)家中，只有法國(guó)采用國(guó)際單位制(SI)。國(guó)際單位制是現(xiàn)時(shí)世界上最普遍采用的標(biāo)準(zhǔn)度量衡單位系統(tǒng)，采用十進(jìn)制進(jìn)位系統(tǒng)。故選A。 （4）考查細(xì)節(jié)理解。根據(jù)最后一段中的“At a meeting in Versailles, France, on November 16th, 2018, the world39。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(guó)凡爾賽宮召開的會(huì)議上，七個(gè)基本計(jì)量單位中的四個(gè)將被重新定義，其中包括對(duì)千克的重新定義。故選C。 【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，是一篇科普類閱讀，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，從而選出正確答案。5．閱讀理解 A new study suggests a link between exposure to greenery and reduced desires for alcohol cigarette and junk food. The study is the first to investigate the possible relationships between exposure to nature and desires and negative emotions. Researchers at the University of Plymouth39。s School of Psychology surveyed 149 respondents (應(yīng)答者) aged 21 o 65 about the proportion( 比例 )of green space in their neighborhood, the presence of green views from their home, their access to a garden and how often they use public green space. The study also asked questions about experiences with depression and anxiety, as well as desires for things like caffeine, alcohol and nicotine. Participants rated the intensity( 強(qiáng)度), imagery, and intrusiveness(侵?jǐn)_性) of their desires on an 11point scale. Researchers found the presence of visible green space contributed to decreased desires for junk food. The effect was particularly noticeable when more than 25 percent of a respondent39。s view was greenery. Previous scholarship(學(xué)術(shù)研究) has dealt mostly with exercise in nature: A 2015 study out of the University of Michigan found 90 minute group nature walks were effective at batting depression and relieving other mood disorders. But for people who struggle with accessibility or don39。t have time for a 90minute walk, this new study suggests just looking out a window at a tree can help fight off a bad habit. It has been known for some time that being outdoors in nature is linked to a person39。s wellbeing, lead author Leanne Martin said in a statement. But for there to be a similar association with desires from simply being able to see green space adds a new dimension to the previous research. A 2018 study from Denmark39。s Aarhus University for example, found that. Having access to green space throughout childhood decreased a person39。s risk of developing mental health problems as an adult.（1）What does the second paragraph mainly talk about? results of the new study. purpose of the new study. significance of the new study. content of the new study.（2）What does the underlined word