Suddenly another thought went through Kate's mind like an electric shock. An express train was due to go past about thirty minutes later. If it were not stopped, that long train, full of passengers, would fall into the stream. “Someone must go to the station and warn the station-master，” Kate thought. But who was to go? She would have to go herself. There was no one else.

    In wind and rain she started on her difficult way. Soon she was at the bridge that crossed the Des Moines River, a bridge also built of wood, just like the bridge across Honey Creek. The storm had not washed this away, but there was no footpath across it. She would have to cross it by stepping from sleeper (枕木)to sleeper. With great care she began the dangerous crossing, sometimes on her hands and knees, hardly daring to look down between the sleepers into the wild flood waters below. If she should slip, she would fall between the sleepers, into the rapidly flowing stream.

At last -- she never knew how long it had taken her一 she felt solid ground under her feet. But there was no time to rest. She still had to run more than half a mile and had only a few minutes left. Unless she reached the station before the express did, many, many lives would be lost.

    She did reach the station just as the train came into sight. Fortunately the station-master was standing outside. “The bridge is down! Stop the train! Oh, please stop it!” Kate shouted breathlessly.

    The station-master went pale. He rushed into the station building and came back with a signal light. He waved the red light as the train came into the station. It was not a second too early.

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

    Just a few years out of law school, I decided that I wanted to write fictions. The only thing I had ever published before was a law-review article. I had made great efforts to write when I came home at night after work, but I was too tired. I decided to quit my job.

    I began my new life on a February morning. I sat down at my kitchen table at 7:30 am and made a resolution. Every day I would write until lunchtime. Then I would lie down on the floor for 20 minutes to rest my mind. After that, I would return to work for a few more hours.

    In my first year, I sold two stories. Then I wrote a novel, but I thought it wasn't good enough, so I ended up putting it in a drawer. My second novel, Billy Lynn's Long Halftime Walk, was published to glowing reviews and received the National Book Critics Circle Award for fiction.

    My success sounds like a familiar story, but actually it was far from sudden. I quit my job, and for every story I published in those years, I had at least 30 rejections. The novel that I put away in the drawer took my four years. My breakthrough came in 2006, 18 years after I first sat down to write at my kitchen table.

    Sometimes genius (天才) is just the thing that comes out after 20 years of working at your kitchen. Also, doing something truly creative requires the energy of youth. Orson Welles made his masterpiece, Citizen Kan, at 25. T. S. Eliot wrote The Love Song of J. Afred Prufrock at 23.

Dear God,

    Now that I am no longer young. I have friends whose mothers have passed away. I have heard these sons and daughters say they never fully thanked their mothers until it was too late to tell them.

    I am blessed with the dear mother who is still alive. I appreciate her devotion more each day. My mother does not change, but I do. As I grow older and wiser, I realize what an extraordinary person she is. It's sad that I am unable to say these words in her presence, but they flow easily from my pen.

    How does a daughter begin to thank her mother for life itself? For the love, patience and just plain hard work that go into raising a child? For running after a toddler（学步儿童）, for understanding a moody teenager, and for tolerating a college student who knows everything? For wailing for the day when the daughter realizes what her mother really is?

    How does a grown woman thank a mother for continuing to be a mother? For being ready with advice when asked or remaining silent when it is needed? For not saying “I told you so.” when she could have voiced these words dozens of times? For being essentially herself－loving, thoughtful, patient and forgiving?

    I don't know how to thank her, dear God, except to bless her and live up to the example she has set. I pray that I will look as good in the eyes of my children as my mother looks in mine.

    Flying for a long time, you finally arrive at the place where you can relax—your hotel room. Now you throw your bag on the bed, turn on the TV and watch an international news programme on a satellite channel probably from UK or the USA.

    The main international broadcasters are BBC World and CNN. With an audience of over 1.5 billion people, these are popular channels that offer good-quality news programmes. In both companies, the journalists are experienced writers that produce journalism of a high standard.

    However, there are alternative news channels which people watch because they want a less traditional or non-Western view on world events. Russia Today and Al Jazeera International, an Arabic company, are international channels that broadcast in English. Both companies say they give a fresh view on big stories, and their experienced journalists often report from places where Western journalists do not work, and so they give us stories that we don't normally see.

    The Internet offers more variety. OneWorldTV is an Internet site where you can find stories about the developing world and human rights, rather than the usual stories about US politics and business. The writers for this company are often local people who write the stories for free. This non-professional journalism is increasing, and it certainly offers more choices.

    This increase in citizen journalism means that you can write the news, too. Main news broadcasters often use photographs and stories that members of the general public send to them, especially when there is a dramatic breaking news story. Besides this, some blogs are popular sources of news, and the website NowPublic lets you write stories using information you can get from anywhere, including sites like Youtube, Flickr and Twitter.

    Nola (August 21, 1974 -November 22, 2015) was a northern white rhino（犀牛）who lived at the San Diego Zoo Safari Park near Escondido, California. At her death, she was one of only four remaining northern white rhinos in the world. The other three lived in Kenya. World Rhino Day, held on September 22, is to raise awareness of the less than 30,000 other rhinos left on Earth.

    "Rhinos need our help today, not tomorrow," Nola's lead keeper Jane Kennedy said. "Last year we lost over 1,200 rhinos just in South Africa. If we continue to lose more than 1,000 rhinos a year, in 10 to 20 years all the rhinos on the planet will be gone."

    "Unfortunately, most animals are in danger of dying out because of humans," Kennedy says." Humans have either poached（偷猎）animals, or because there are over seven billion of us, we've taken up too much of the world's resources ". Poachers illegally hunt rhinos for their horns. They sell the horns for thousands of dollars per pound, to be used for art, jewelry, and decorations. Experts believe that one rhino is poached every eight hours.

    In 1975, the San Diego Zoo Institute for Conservation Research started the Frozen Zoo, a program through which researchers have collected cell (细胞) samples from more than 8,000 different types of animals, including the northern white rhino. Scientists hope that by studying the rhino cells, they will get greater understanding of it, and will find ways to increase its numbers.

    Jane Kennedy describes World Rhino Day as "a celebration of rhinos along with an awareness campaign for everybody across the world to know that rhinos need our help." At the San Diego Zoo, children and adults are welcome to visit and speak with zookeepers to learn about rhinos. But you don't have to live in San Diego to celebrate World Rhino Day. It is observed around the world, with zoos and wildlife parks holding special events and programs to teach people about rhinos, and enable them to see the animals up close. For more information, go to www.worldrhinoday. org.

A Norwegian company has created what it calls the world's first zero-emission(排放), autonomous cargo ship(货船). Developed by chemical company Yara International, the ship was designed to reduce emissions of pollutants and greenhouse gases, and move goods away from roads to the sea.

The shipping industry accounts for between 2.5% and 3% of global greenhouse gas emissions, according to the International Maritime Organization. Nearly all of Norway's electricity is generated by hydroelectric power, which is generally considered to have much lower carbon emissions than burning fossil fuels, despite the fact that it still produces greenhouse gases.

Capable of carrying 103 containers and with a top speed of 13 knots, it will use a 7 MWh battery, with about a thousand times the capacity of one electrical car. The ship will be charged near the port before sailing to container harbors along the coast and then back again, replacing 40,000 truck journeys a year.

As well as providing a greener option compared to conventional cargo ships, there is no crewman, which means it will be more cost-effective to operate. Initially, loading and unloading the ship will require humans, but gradually, all loading, discharging, and some other operations will also be eventually operated using autonomous technology. That will involve developing autonomous cranes(起重机) and carriers, which are the vehicles that place containers onto ships.

According to researchers, fully autonomous ships are the future. But there are many challenges to overcome before autonomous ships can be used for commercial long sea journeys. Navigating traffic in large ports could be a major barrier.

Without a crew aboard to carry out maintenance checks, autonomous ships would need built-in self-diagnosing systems with the ability to detect and fix problems, or call for human assistance.

Although Yara International has no plans to add more autonomous ships to its operations, we may see more elements of AI technology used on commercial ships in the future. Elements are already being used in shipping today when it comes to the voyage and we'll see more partly autonomous elements added.