【正文】 plastics, the bits smaller than onefifth of an inch across.s last sink. In 2015, Jenna Jam beck a University of Georgia engineering professor, caught everyone39。t invented until the late 19th century, and its production only really took off around 1950, we have a mere billion tons of the stuff to deal with. Of that, more than billion tons have bee waste. And of that waste, a surprising billion tons never made it to a recycling binthe figure that shocked the scientists who published the numbers in 2017.s oceans today, waiting to be eaten by some fish or oyster, and finally perhaps by one of us.5．犇犇閱讀理解 （4）考查推理判斷。 （3）考查推理判斷。 （2）考查細(xì)節(jié)理解。根據(jù)第三段中的“nearly 37 million people were living with HIV in 2017.... Now there is no cure for HIV/AIDS though there have been developments in oral drug treatments to slow the progression of the disease” 可知，“2017年全世界有近3700萬(wàn)人感染艾滋病毒。A social webpage.D.It still requires perfecting.D.By attaching it to the HIV virus.D.Remind readers of HIV prevention.D. The Joint United Nations Program on HIV/AIDS reports that worldwide, nearly 37 million people were living with HIV in 2017. The organization says the largest number of those are in developing countries. Nearly twothirds of HIV cases are in Africa. Now there is no cure for HIV/AIDS though there have been developments in oral drug treatments to slow the progression of the disease.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(kāi)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。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)。根據(jù)第三段中的“it was the French who in 1799 made it law和The Syst232。根據(jù)第二段中的“The king39。 （1）考查推理判斷。me International d39。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. Throughout much of human history, man has been the measure of many, if not all, things. Lengths were divided up into feet and smaller units from the human hand. Other measures were equally characteristic. Mediterranean 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(shù)) seed.3．犇犇閱讀下列短文，從每題所給的A、B、C和D四個(gè)選項(xiàng)中，選出最佳選項(xiàng)。 （4）考查主旨大意。故選A。他完全沉浸在大自然之中。s as it should be.（1）What is Kang Byoungwook doing? lost in nature. up his strength. to control a forest fire. firefighters under stress.（2）What does Lisa Nisbet think of being outdoors? is overlooked by people. has nothing to do with happiness. Koreans show great interest in it. need more evidence for its benefits.（3）What benefit of nature did Stephen Kaplan find? affects people39。s more surprising is that nature may also make us more creative. David Strayer, a psychologist at the University of Utah, showed as much with a group of participants, who performed 50 percent better on creative problemsolving tasks after three days of wilderness backpacking. Another experiment conducted by psychologist Stephen Kaplan found that people who took a 50minute walk in a park had better attention and shortterm memory than those who took a walk along a city street. the firefighters all have posttraumatic stress disorder (創(chuàng)傷后應(yīng)激障礙). t have a onesizefitsall solution and requires a bination of new technology, preventative measures and changing people39。 （3）考查細(xì)節(jié)理解。根據(jù)第二段中的“Responsible for collecting waste, the drone will begin operations in Dubai Marina in November after a year of trials with local partner Ecocoast.”可知，這種無(wú)人機(jī)是用來(lái)清理垃圾的，故選C。More measures should be taken to make water clean.C.The severity of ocean garbage pollution.D.It is a rubbish collector.D.t have a onesizefitsall solution and requires a bination of new technology, preventative measures and changing people39。s oceans. One paper from December 2014 estimated that over a quarter of a million tons of ocean plastic pollution was afloat. According to RanMarine, the WasteShark is available in both autonomous and remotecontrolled models. Measuring just over five feet by threeandahalf feet ( meters by meter), it can carry up to 352 pounds of rubbish ( kg) and has an operational battery life of 16 hours. By 2016 there were approximately 150 million tons of plastic in the world39。 WasteShark also has the abilities to gather air and water quality data, remove chemicals out of the water such as oil, and heavy metals, and scan the seabed to read its depth and outlines, said Oliver Cunningham, one of the cofounders of RanMarine. Fitted with a collisionavoidance system, the drone uses laser imaging detection and ranging technology to detect an object in its path and stop or back up if the object approaches.s around the perimeter (周邊) or through the city itself. The drones are that last line of defense between the city and the open ocean, added Cunningham. WasteSharks are operating in Dubai, South Africa and the Netherlands and cost $ 17, 000 for the remotecontrolled model and just under $ 23, 000 for the autonomous model. intention is to have the collected rubbish recycled or upcycled. However, Liparts argues that cleaning waterways doesn39。It is an ocean explorer.C.The dangers of using p