2019-2020英语必修五单元综合检测:2 含解析.pdf
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1、【XZB2019TBYLYYB05002】 单元综合检测单元综合检测(二二) Unit 2 The environment (时间:100 分钟;满分:120 分) .阅读理解(共 10 小题;每小题 2.5 分,满分 25 分) A (2019山 东 省 邹 城 市 第 一 中 学 高 二 上 学 期 期 中 )Researchers at Stanford University have developed a new material that can move heat out of buildings and into space.The researchers say the ma
2、terial can cool buildings even on hot days.The cooling material is a very thin sheet with many layers that could be placed on a roof like solar panels(板)However, instead of turning sunlight into energy as solar panels do, the material turns heat into infrared(红外线的)radiation. Shanhui Fan is an electr
3、ical engineering professor at Stanford University.He says that the panels have a layer of material that is like sand.The panels act like a mirror.They take heat out of buildings and reflect the light from the sun.And he says both the heat and sunlight are sent 100 kilometers into outer space.Its a s
4、tructure that cools itself without electricity input, even under the sun.So, what it does is basically radiate heat to outer space and also reflect the sunlight so it doesnt get heated up by the sun.Mr.Fan says it is like having a window into space.The heat is sent directly into space without increa
5、sing the air temperature. He says buildings in developing countries that do not have electricity or air conditioning could use the panels.“In areas where electricity is out of reach for many people, there is a potential benefit for storing medicine or even food.In many of these situations, being abl
6、e to reduce the temperature is important.And this would provide a way to do it.” The researchers say the main problem is creating actual cooling systems using the hightech panels.They say it may be possible to develop a cooling spray(喷涂)that could be used on present solid structures.They believe the
7、 cooling spray technology could be developed in the next three to five years.They say as much as 15 percent of the energy used in the United States is spent providing power to air conditioning systems. 1What is the main idea of Paragraph 1? ALiving on hot days is no longer a big problem now. BResear
8、chers are developing new solar panels on roofs. CA new material is created to cool the buildings. DThe new material is a very thin sheet with many layers. 2According to Paragraph 2, how does the panel work? AIt takes in the heat and cools it down. BIt uses a mirror to reflect the sunlight. CIt has a
9、 window to let out the heat. DIt sends heat away right into space. 3Which of the following can best describe the advantage of the new panel? AConvenient but impractical. BEcofriendly and energysaving. CEffective but expensive. DCreative and cheap. B The earth is dying before us yet we sit and watch.
10、If the TV or the game system breaks,we run off to the stores to get it fixed immediately no matter what the cost is.Why arent we willing to fix our earth? Are our televisions and game systems more important to us than where we live? Where shall we continue to live,until the end of time? The earth is
11、 our home and cannot be replaced.We must take care of it.We have come up with so much technology that limits us instead of helping us.Take that game system we run to repair.What does it do? It occupies kids time! The earth has already given kids plenty of entertainment in the forms of fields and hil
12、ls,forests and plains, water and land.However,instead of using what the earth has given us,and helping kids by giving them exercise as they run around,we decide to ruin kids minds with game systems that glue them to the screen for hours,and make them ignore their homework and chores.We have polluted
13、 this earth by making these things which do not even help in any way! We have already messed up this world,we have ruined the air,water,and animals that it has so willingly provided for us.We need to stop this destruction of life and bring back the world we had before.It will not be easy,but everybo
14、dy can help! What about something as simple as turning the lights off when you leave a room? Recycling what can be recycled? Picking up litter? Donating money to an environmental organization? None of these things are very hard.We cant just always say, “Oh,the earth is a mess.Ah,well,those big compa
15、nies that are polluting so much can stop and fix it.” Instead, we need to help out.Its not only those big companies; its everyday things that we do too that are ruining the earth.So stop and think about what you can do to make a difference to our world! 4Why does the author mention televisions and g
16、ame systems in Paragraph 1? ATo make people better aware of the urgency to the protection of the earth. BTo explore the great harm done to the earth by too much technology waste. CTo show the relationship between overuse of those things with early death. DTo remind people to spend less on them and u
17、se the saved money in a wiser way. 5We can clearly feel that the author wrote this passage with deep AangerBemotion CsadnessDregret 6What is the main purpose of the passage? ATo criticize those big companies that ruin the earth. BTo ask people to save kids from the harm done by pollution. CTo give k
18、ids plenty of entertainment in a clean environment. DTo call on people to stop ruining the earth. C (2019陕西省安康市高二上学期期中)The African elephant, the largest land animal remaining on earth, is of great importance to African ecosystem (生 态 系 统)Unlike other animals, the African elephant is to a great exten
19、t the builder of its environment.As a big planteater, it largely shapes the forestandsavanna(大草原) surroundings in which it lives, therefore setting the terms of existence for millions of other animals that live in its habitat(栖息地) It is the elephants great desire for food that makes it a disturber o
20、f the environment and an important builder of its habitat.In its continuous search for the 300 pounds of plants it must have every day, it kills small trees and underbushes, and pulls branches off big trees.This results in numerous open spaces in both deep tropical forests and in the woodlands that
21、cover part of the African savannas.In these open spaces are numerous plants in various stages of growth that attract a variety of other planteaters. Take the rain forests for example.In their natural state, the spreading branches overhead shut out sunlight and prevent the growth of plants on the for
22、est floor.By pulling down trees and eating plants, elephants make open spaces, allowing new plants to grow on the forest floor.In such situations, the forests become suitable for large hoofed planteaters to move around and for small planteaters to get their food as well. What worries scientists now
23、is that the African elephant has become an endangered species.If the elephant disappears, scientists say, many other animals will also disappear from vast areas of forest and savanna, greatly changing and worsening the whole ecosystem. 7What is the passage mainly about? ADisappearance of African ele
24、phants. BForests and savannas as habitats for African elephants. CThe effect of African elephants search for food. DThe eating habit of African elephants. 8What does the underlined phrase “setting the terms” most probably mean? AFixing the time. BWorsening the state. CImproving the quality. DDecidin
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