2019-2020年高考英语二轮复习 科普环保类阅读理解选编（2）xx高考英语阅读练习科普环保类Scientists from China, Sweden and the United Stated have developed a high-producing rice that can reduce methane emission(甲烷排放), a major greenhouse gas blamed for global warming, from rice fields, according to a paper published on the latest issue of Nature. By inserting a barley(大麦) gene into rice, Sun Chuanxin and his colleagues created SUSIBA2 Rice, which stores more starch(淀粉) in the section of the rice above ground, according to a paper published on the latest issue of Nature.This means the grains will have more starch while the root will exude less nutrients that will later be turned into methane by microbes(微生物) in the soil, Sun, who works with Swedish University of Agricultural Sciences, told Xinhua. It solves two major problems mankind faces at one time: environmental degradation and the need for increased grain output, Wang Feng, another scientist, said, adding that the rice can cut methane discharge by more than 90 percent during summer and more than half during autumn, as the rice displays a greater emission reduction effect in high temperatures. Meanwhile, small-scale trials have also suggested an increased output: a single plant of the new breed has 300 more grains with a starch content 10 percent higher. Wang said the team is working on applications for the rice in different areas, seasons and using different farming techniques. Its still far away from mass application, but at least we see the light of hope. Human-induced methane, though less abundant than carbon dioxide in the air, is responsible for 20 percent of the global warming effect. Rice paddies are the largest single source of methane linked to human activity. According to the Ministry of Agriculture, China produces 209 million tons of rice in xx, or 28 percent of the worlds total of 734 million.【小题1】SUSIBA2 Rice will be a major breakthrough because _. Ait tastes with a barley flavorBit well balances environmental protection and grains increaseCit contains more starch than the ordinary riceDit gives off less methane in summer than in winter【小题2】What can we learn from the text? AScientists will soon grow the new rice in large areasBHuman-related methane contributes most to global warmingCChina may contribute greatly to global warming reductionDRice fields will be reduced all over the world【小题3】The purpose of this writing is to _. Aask people to cut down on their dependence on rice consumptionBdraw peoples attention to the serious consequences of global warmingCintroduce a new kind of genetically-modified rice and its possible benefitsDindicate human-related methane alone is to blame for global warming effects xx高考英语阅读练习科普环保类If you had a strange sound in your ear, what would you do? One man in Wales who thought he had a fly in his ear called 999, the emergency services number in Britain. And so did a woman who was worried about her green potatoes. Could she make chips with them? Were they poisonous? She didnt hesitate about calling the local ambulance service to ask. According to a recent report, more than 31,000 non-urgent calls were made to the Welsh Ambulance Service in the last year. Inappropriate calls are a headache for health professionals everywhere. In the US, prank calls to 911 happen on a daily basis. Many callers use apps which hide their identity. But those who try to be funny shouldnt be surprised if the police have the last laugh. One man from Colorado was arrested for making more than 1,200 prank calls, according to a report on the US television station KOAATV. People who take these calls are trained to stay calm and keep a straight face, no matter how strange the call sounds. “Theres no way for us to know whether the call is real, accidental or a prank call,” said a public safety worker interviewed by the American TV channel. The Head of Clinical Services at the Welsh Ambulance Service, Richard Lee, has a warning for prank callers. He says:“ When people misuse the service it means our precious time is being taken away from someone who really does need our help.” Indeed, these hotlines are supposed to help the seriously ill or those with a life-threatening injury. You never know, one day, the person who needs assistance could be you or someone in your family.【小题1】How does the author introduce the topic of the text? ABy giving examples.BBy telling a story.CBy listing figures.DBy making a parison.【小题2】According to the text, prank calls are usually_. Ameant to be helpfulBdealt with in timeCthought highly ofDmade to play tricks【小题3】What does the underlined phrase “have the last laugh” in Paragraph 2 probably mean? Awin at last.Bnever find them.Claugh at them.Dknow nothing.【小题4】What does the author intend to suggest in the text? APrank calls are usually easy to identify.BOperators feel annoyed by strange caller