1 . 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

2 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

In ancient China lived an artist    1     paintings were almost lifelike. The artist’s reputation had made him proud. One day the emperor wanted to get his portrait (画像) done so he called all great artists to come and present their     2     (fine) work, so that he could choose the best. The artist was sure he would    3    (choose), but when he presented his masterpiece to the emperor’s chief minister, the old man laughed. The wise old man told him to travel to the Li River～perhaps he could learn a little from the greatest artist in the world.

Filled with     4     (curious), the artist packed his bags and left.     5     he asked the villagers on the banks of the river where he could find the legendary (传奇的) artist, they smiled and     6     (point) down the river. The next morning he hired a boat and set out     7     (find) the well-known painter. As the small boat moved,     8     (gentle) along the river he was left speechless by the mountains being silently reflected in the water. He passed milky white waterfalls and mountains in many shades of blue. And when he saw the mists rising from the river and the soft clouds    9     (surround) the mountain tops, he was reduced to tears. The artist was finally humbled (谦卑) by the greatest artist     10     earth, Mother Nature.

3 . Where are the speakers?

A．At a canteen.

B．At a clinic.

C．At a bank.

4 . What is the man doing?

A．Asking the way.

B．Giving directions.

C．Correcting a mistake.

5 . What is the woman likely to do?

A．Make a phone call.

B．Handle the problem.

C．Have a rest.

6 . We may think we're a culture that gets rid of our worn technology at the first sight of something shiny and new, but a new study shows that we keep using our old devices(装置) well after they go out of style. That’s bad news for the environment — and our wallets — as these outdated devices consume much more energy than the newer ones that do the same things.

To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life — from when its minerals are mined to when we stop using the device. This method provided a readout for how home energy use has evolved since the early 1990s. Devices were grouped by generation — Desktop computers, basic mobile phones, and box-set TVs defined 1992. Digital cameras arrived on the scene in 1997. And MP3 players, smart phones, and LCD TVs entered homes in 2002, before tablets and e-readers showed up in 2007.

As we accumulated more devices, however, we didn't throw out our old ones. "The living-room television is replaced and gets planted in the kids' room, and suddenly one day, you have a TV in every room of the house," said one researcher. The average number of electronic devices rose from four per household in 1992 to 13 in 2007. We're not just keeping these old devices — we continue to use them. According to the analysis of Babbitt's team, old desktop monitors and box TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions（排放）more than doubling during the 1992 to 2007 window.

So what's the solution（解决方案）? The team's data only went up to 2007, but the researchers also explored what would happen if consumers replaced old products with new electronics that serve more than one function, such as a tablet for word processing and TV viewing. They found that more on-demand entertainment viewing on tablets instead of TVs and desktop computers could cut energy consumption by 44%.

1. What does the author think of new devices?

A．They are environment-friendly.	B．They are no better than the old.
C．They cost more to use at home.	D．They go out of style quickly.

2. Why did Babbitt's team conduct the research?

A．To reduce the cost of minerals.

B．To test the life cycle of a product.

C．To update consumers on new technology.

D．To find out electricity consumption of the devices.

3. Which of the following uses the least energy?

A．The box-set TV.	B．The tablet.
C．The LCD TV.	D．The desktop computer.

4. What does the text suggest people do about old electronic devices?

A．Stop using them.	B．Take them apart.
C．Upgrade them.	D．Recycle them.

7 . Today's world is not an easy adjustment for young adults. Key skill set for success is persistence (毅力), a characteristic that researchers say is heavily influenced by fathers. Researchers from Brigham Young University discovered that fathers are in a unique position to help their adolescent children learn persistence.

BYU professors Laura Padilla-Walker and Randal Day arrived at these findings after following 325 American families over several years. And over time，the persistence gained through fathers led to higher achievement in school.

"There are relatively few studies that stress the unique role of fathers，"Padilla-Walker said. "This research also helps to prove that characteristics such as persistence-which can be taught-are key to a child's life success.”

Researchers determined that dads need to practice an "authoritative" parenting style. Authoritative parenting is not authoritarian:rigid，demanding or controlling. Rather，an authoritative parenting style includes some of the following characteristics:children feel warmth and love from their father；responsibility and the reasons behind rules are stressed children are given an appropriate level of autonomy(自主权).

In the study，about 52 percent of the dads exhibited above-average levels of authoritative parenting. A key finding is that over time，children raised by an authoritative father were significantly more likely to develop persistence，which leads to better outcomes in school.

This particular study examined 11 to 14-year-olds living in two-parent homes. Yet the researchers suggest that single parents still may play a role in teaching the benefits of persistence，which is an avenue of future research.

1. What is special about the BYU professors' study?

A．It centered on fathers' role in parenting.

B．It was based on a number of large families.

C．It analyzed different kinds of parenting styles.

D．It aimed to improve kids' achievement in school.

2. What would an authoritative father do when raising his children?

A．Ignore their demands.	B．Make decisions for them.
C．Control their behaviors.	D．Explain the rules to them.

3. Which group can be a focus of future studies according to the researchers?

A．Single parents.

B．Children aged from 11 to 14.

C．Authoritarian fathers.

D．Mothers in two-parent homes.

4. Which of the following is the best title for the text?

A．Three Characteristics of Authoritative Fathers.

B．Key Skills for Young Adults to Succeed in Future.

C．Children Tend to Learn Determination from Father.

D．Family Relationship Influences School Performance.

8 . My First Marathon（马拉松）

A month before my first marathon, one of my ankles was injured and this meant not running for two weeks, leaving me only two weeks to train. Yet, I was determined to go ahead.

I remember back to my 7th year in school. In my first P.E. class, the teacher required us to run laps and then hit a softball. I didn’t do either well. He later informed me that I was ＂not athletic＂.

The idea that I was ＂not athletic＂ stuck with me for years. When I started running in my 30s, I realized running was a battle against myself, not about competition or whether or not I was athletic. It was all about the battle against my own body and mind. A test of wills!

The night before my marathon, I dreamt that I couldn’t even find the finish line. I woke up sweating and nervous, but ready to prove something to myself.

Shortly after crossing the start line, my shoe laces(鞋带) became untied. So I stopped to readjust. Not the start I wanted!

At mile 3, I passed a sign: ＂GO FOR IT, RUNNERS!＂

By mile 17, I became out of breath and the once injured ankle hurt badly. Despite the pain, I stayed the course walking a bit and then running again.

By mile 21, I was starving!

As I approached mile 23, I could see my wife waving a sign. She is my biggest fan. She never minded the alarm clock sounding at 4 a.m. or questioned my expenses on running.

I was one of the final runners to finish. But I finished! And I got a medal. In fact, I got the same medal as the one that the guy who came in first place had.

Determined to be myself, move forward, free of shame and worldly labels(世俗标签), I can now call myself a ＂marathon winner＂.

1. A month before the marathon, the author ____________.

A．was well trained	B．felt scared
C．made up his mind to run	D．lost hope

2. Why did the author mention the P.E. class in his 7th year?

A．To acknowledge the support of his teacher.

B．To amuse the readers with a funny story.

C．To show he was not talented in sports.

D．To share a precious memory.

3. How was the author’s first marathon?

A．He made it.	B．He quit halfway.
C．He got the first prize.	D．He walked to the end.

4. What does the story mainly tell us?

A．A man owes his success to his family support.

B．A winner is one with a great effort of will.

C．Failure is the mother of success.

D．One is never too old to learn.