高考英语阅读理解(大题培优)附详细答案

一、高中英语阅读理解1．阅读理解City trees grow faster and die younger than trees in rural forestry, a new study finds. Over their lifetimes, then, urban trees will likely absorb less CO2 from the air thah forest trees.As we all know, the earth would be freezing or burning hot without CO2. However, CO2is a greenhouse gas, meaning it traps energy from the sun as/heat. That makes temperatures near the ground rise. Human activities, especially the widespread burning-of fossil(化石)fuels, have been sending extra greenhouse gases into the air. This has led to a rise in average temperatures across the globe.Studies had shown forests readily absorb CO2, but there hadn't been much data on whether city trees grow, die and absorb CO2at the same rate as forest trees do. So some researchers decided to find out.To figure out how quickly trees were growing, researchers tracked their diameters (the width of their trunks) between 2005 and 2014. A tree's diameter increases as it grows, just as a person's waist size increases as they gain weight. About half the weight of a tree is carbon, research has shown. Most of the rest is water. Over the nine years' tracking, the researchers found city trees absorbed four times as much carbon from the air as forest trees. However, they were twice as likely to die. So over the lifetime of each type of tree, forest trees actually absorbed more CO2.City trees grew faster because they had less competition for light from their neighbors. In a forest, trees tend to grow close together, shading their neighbors. Street trees also benefit from higher levels of nitrogen (氮)in rainwater. Nitrogen helps plants grow. Waste gases from gas-burning cars also contain nitrogen, thus enriching city air with nitrogen. Later, rainwater may wash much of it to the ground. Some street trees may also have better access to water than trees in the country because the underground water pipes can leak.（1）What can he known about CO2 from paragraph 2?A. It is one of the side effects of greenhouses.B. It greatly accelerates the process of global warming.C. It results from the widespread burning of fossil fuels.D. It prevents the earth from becoming unsuitable to live on.（2）Why did researchers track the diameters of trees?A. To know about their growth rates.B. To find out how much they weigh.C. To check whether they were healthy.D. To assess the carbon amounts in them.（3）What advantage do city trees have over forest trees?A. They are more likely to access growth promoters.B. They can enjoy more water coming from the air.C. They can enjoy more shade from neighbors.D. They are better at competing for light.（4）What will probably be talked about if the passage is continued?A. How urban trees can live longer.B. Why city living makes trees die young.C. How trees respond to dry soil conditions.D. Why faster-growing trees absorb more CO2.【答案】（1）D（2）A（3）A（4）B【解析】【分析】本文是一篇说明文，一项新的研究发现：与长在森林中的树木相比，城市里的树木长得更快，但死得更早。

（1）考查推理判断。

根据第二段中的“the earth would be freezing or burning hot without CO2.”可知，如果没有二氧化碳，地球将会极冷或极热。

可以推断，二氧化碳可以防止地球变得不适合居住。

故选D。

（2）考查细节理解。

根据第四段中的“To figure on how quickly trees were growing, researchers tracked their diameters.”可知，研究人员监测树木的直径是为了了解树木的生长速度。

故选A。

（3）考查细节理解。

根据最后一段中的“Street trees also benefit from higher levels of nitrogen (氮）in rainwater. Nitrogen helps plants grow. Waste gases from gas-burning cars also contain nitrogen, thus enriching city air with nitrogen. Later, rainwater may wash much of it to the ground.”可知，与生长在森林中的树木相比，城市里的树木长得更快是因为它们无需与邻近的树木争夺光照，也能得到更多的氮量，还更容易得到水。

光、氮和水都可以促进树木的生长。

由此可以推断，城市里的树木比森林中的树木更可能获得生长促进剂。

故选A。

（4）考查推理判断。

文章首句就提到了一项新的研究结果：城市里的树木比森林中的树木长得更快，但死得更早；文章第三段说到“以前有研究表明森林会吸收二氧化碳，但是城市里的树木的生长、死亡和吸收二氧化碳的速度是否跟森林中的树木一样，这方面的数据不多。

因此一些研究人员决定弄清楚”；文章第四段再次介绍了他们的研究发现：城市里的树木比森林中的树木长得更快，但死得更早；文章最后一段介绍了城市里的树木比森林中的树木生长得更快的几个原因。

由此可以推断，文章接下来很可能就要介绍城市里的树木死得更早的原因。

故选B。

【点评】本题考点涉及细节理解和推理判断两个题型的考查，是一篇科研类阅读，考生需要准确捕捉细节信息，并根据上下文进行逻辑推理，从而选出正确答案。

2．阅读理解A science teacher from rural Kenya who gives away most of his salary to help poorer students has been awarded the world's best teacher and $ 1 million, beating 10,000 nominations from 179 countries. Peter Tabichi, 36, a maths and physics teacher at Keriko secondary school in Pwani Village, has won the Varkey Foundation Global Teacher Prize 2019.Tabichi gives away 80% of his income to help the poorest students at the poorly-equipped and overcrowded school who could not otherwise afford uniforms and books. More than 90% of his students are from poor families and almost a third are orphans or have only one parent. Drug abuse, teenage pregnancies, leaving off their studies, young marriages and suicide are common. Students have to walk 7 km along roads that can become impassable in the rainy season to reach the school and the area can be affected by drought and starvation.Despite only having one computer, a poor Internet connection and a student-teacher ratio of 58:1, Tabichi started a "talent nurturing club" and expanded the school's science club, helping students design research projects of such quality that many now qualify for national competitions. His students have taken part in international science competitions and won an award from the Royal Society of Chemistry after using local plant life to generate electricity. Tabichi and four colleagues also give struggling students one-to-one tuition in maths and science, visiting students' homes and meeting their families to identify the challenges they face.Accepting the prize, Tabichi said Africa's young people would no longer be held back by low expectations." Africa will produce scientists, engineers and entrepreneurs whose names will be one day famous in every corner of the world." he said.（1）What made Peter Tabichi win the prize in 2019?A. Giving away $ 1 million to education.B. Teaching in secondary schools for 36 years.C. Fighting drought and starvation in Africa.D. Helping the poorer students in rural Kenya.（2）Why did Tabichi start the "talent nurturing club"?A. To contribute most of his income.B. To expand national competitions.C. To guide students to design research projects.D. To encourage students to grasp opportunities.（3）Which of the following best describes Peter Tabichi as a teacher?A. Independent.B. Caring.C. Humorous.D. Interesting.（4）What can we infer from the last paragraph?A. African education cost is expected to get lower.B. Africa is in desperate need of young scientists.C. Tabichi is not pleased until he is known worldwide.D. Tabichi has high expectations for young Africans.【答案】（1）D（2）C（3）B（4）D【解析】【分析】本文是一篇新闻报道，肯尼亚农村教师彼得·塔比奇由于资助贫困学生获得了世界最佳教师奖。