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中档题型高分练(五)
阅读理解(C、D篇)+完形填空
I.阅读理解
C
Can a small group of drones (无人机) guarantee the safety and reliability of railways and, at the same time, help railway operators save billions of euros each year? That is the very likely future of applying today’s “eyes in the sky” technology to make sure that the millions of kilometres of rail tracks and infrastructure (基础设施) worldwide are safe for trains on a 24/7 basis.
Drones are already being used to examine high-tension electrical lines. They could do precisely the same thing to inspect railway lines and other vital aspects of rail infrastructure such as the correct position of railway tracks and switching points. The more regularly they can be inspected, the more railway safety, reliability and on-time performance will be improved. Costs would be cut and operations would be more efficient (高效) across the board.
That includes huge savings in maintenance costs and better protection of railway personnel safety. It is calculated that European railways alone spend approximately 20 billion euros a year on maintenance, including sending maintenance staff, often at night, to inspect and repair the rail infrastructure. That can be dangerous work that could be avoided with drones assisting the crews’ efforts.
By using the latest technologies, drones could also start providing higher-value services for railways, detecting faults in the rail or switches, before they can cause any safety problems. To perform these tasks, drones for rail don’t need to be flying overhead. Engineers are now working on a new concept: the rail drones of the future. They will be moving on the track ahead of the train, and programmed to run autonomously. Very small drones with advanced sensors and AI and travelling ahead of the train could guide it like a co-pilot. With their ability to see ahead, they could signal any problem, so that fast-moving trains would be able to react in time.
1.What makes the application of drones to rail lines possible?
A.The use of drones in checking on power lines. B.Drones’ ability to work at high altitudes.
C.The reduction of cost in designing drones. D.Drones’ reliable performance in remote areas.
2.What does “maintenance” underlined in paragraph 3 refer to?
A.Personnel safety. B.Assistance from drones.
C.Inspection and repair. D.Construction of infrastructure.
3.What function is expected of the rail drones?
A.To provide early warning. B.To make trains run automatically.
C.To earn profits for the crews. D.To accelerate transportation.
4.Which is the most suitable title for the text?
A.What Faults Can Be Detected with Drones
B.How Production of Drones Can Be Expanded
C.What Difficulty Drone Development Will Face
D.How Drones Will Change the Future of Railways
D
You’ve heard that plastic is polluting the oceans — between 4.8 and 12.7 million tonnes enter ocean ecosystems every year. But does one plastic straw or cup really make a difference? Artist Benjamin Von Wong wants you to know that it does. He builds massive sculptures out of plastic garbage, forcing viewers to re-examine their relationship to single-use plastic products.
At the beginning of the year, the artist built a piece called “Strawpocalypse,” a pair of 10-foot-tall plastic waves, frozen mid-crash. Made of 168,000 plastic straws collected from several volunteer beach cleanups, the sculpture made its first appearance at the Estella Place shopping center in Ho Chi Minh City, Vietnam.
Just 9% of global plastic waste is recycled. Plastic straws are by no means the biggest source (来源) of plastic pollution, but they’ve recently come under fire because most people don’t need them to drink with and, because of their small size and weight, they cannot be recycled. Every straw that’s part of Von Wong’s artwork likely came from a drink that someone used for only a few minutes. Once the drink is gone, the straw will take centuries to disappear.
In a piece from 2018, Von Wong wanted to illustrate (说明) a specific statistic: Every 60 seconds, a truckload’s worth of plastic enters the ocean. For this work, titled “Truckload of Plastic,” Von Wong and a group of volunteers collected more than 10,000 pieces of plastic, which were then tied together to look like they’d been dumped (倾倒) from a truck all at once.
Von Wong hopes that his work will also help pressure big companies to reduce their plastic footprint.
5.What are Von Wong’s artworks intended for?
A.Beautifying the city he lives in. B.Introducing eco-friendly products.
C.Drawing public attention to plastic waste. D.Reducing garbage on the beach.
6.Why does the author discuss plastic straws in paragraph 3?
A.To show the difficulty of their recycling.
B.To explain why they are useful.
C.To voice his views on modern art.
D.To find a substitute for them.
7.What effect would “Truckload of Plastic” have on viewers?
A.Calming. B.Disturbing.
C.Refreshing. D.Challenging.
8.Which of the following can be the best title for the text?
A.Artists’ Opinions on Plastic Safety
B.Media Interest in Contemporary Art
C.Responsibility Demanded of Big Companies
D.Ocean Plastics Transformed into Sculptures
II.完形填空
At 17, I didn’t have enough money for college. My mom’s boss, Mr. Overstreet, often made generous ___9___ for various charity purposes. On the ___10___ that Mr. Overstreet would agree to help me, Mom suggested that I ask if his company would ___11___ helping me pay for my college.
I ___12___ walked into his large office, and told Mr. Overstreet with all my ___13___ that I wanted a college education badly. He told me that he would refer my ___14___ to the board of directors.
Later, as ___15___, I went to his office. Mr. Overstreet ___16___ me that if his corporation paid for my education, they would have to do it for all the ___17___.
I thanked Mr. Overstreet and then, ___18___ started to run down my face. It hit me that in no case would my chance of going to college ___19___.
Then, full of ___20___, Mr. Overstreet said, “Son, the company couldn’t pay for your college, but I could.” With that, Mr. Overstreet produced a ___21___ from his desk and sent me to college.
Four years later, I had the ___22___ of keeping my promise to Mr. Overstreet. I graduated first in my class and went on to Vanderbilt Law School, and Mr. Overstreet lived just long enough to see me ___23___. Eight years later, I was elected to the US Congress. In my ___24___ speech that night on stage, I ___25___ Mr. Overstreet looking down from heaven.
___26___, as Chairman of the Higher Education Committee, I managed to increase college ___27___ aid for low-income students by 62%. Mr. Overstreet’s single act of ___28___ to one poor kid ended up helping more students from low-income families go to college.
9.A.suggestions B.introductions C.instructions D.contributions
10.A.basis B.data C.assumption D.choice
11.A.consider B.admire C.brush D.withdraw
12.A.similarly B.nervously C.secretly D.normally
13.A.knowledge B.curiosity C.ambition D.passion
14.A.demand B.request C.concern D.procedure
15.A.admitted B.advanced C.opposed D.scheduled
16.A.directed B.confirmed C.informed D.texted
17.A.employees B.bosses C.seniors D.trainees
18.A.sweat B.disappointment C.outbreaks D.tears
19.A.collapse B.conflict C.cooperate D.emerge
20.A.satisfaction B.bitterness C.sympathy D.attention
21.A.report B.map C.check D.paper
22.A.sense B.honor C.appointment D.identity
23.A.graduate B.marry C.distribute D.survive
24.A.victory B.trend C.consequence D.bonus
25.A.forecasted B.imagined C.remembered D.enjoyed
26.A.Temporarily B.Apparently C.Eventually D.Frequently
27.A.academic B.financial C.social D.fundamental
28.A.kindness B.optimism C.honesty D.dignity
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