阅读下列短文：从每题所给的 A、B、C、D 四个选项中，选出最佳选项，将正确的选项涂在答题卡上。

Is there link between humans and climate change or not? This question was first studied in the early 1900s. Since then,many scientists have thought that our actions do make a difference. In 1997,the Kyoto Protocol explained our role in the Earth's changing atmosphere and set international limits for gas emissions(排放) from 2008to 2012. Some countries have decided to continue these reductions until 2020. More recently, the Paris Agreement, stuck by nearly 200 countries, also aims tolimit global warming. But just now how much warmer it will get depends on how deeply countries cut carbon emissions.

    It may surprise bookworms, but apparently masterpieces such as Jane Eyre are lacking in something — sound effects. An electronic-book firm is adding background noises and music to the works of Charlotte Bronte, Sir Arthur Conan Doyle and William Shakespeare in the hope of attracting younger readers. In one example, a description of rain lashing against a window in a Sherlock Holmes story will be“enhanced”with matching noises.

    The first multimedia e-books — with sounds to accompany novels — will be available this Friday in the UK. The Booktrack releases are available to iPad users, with other tablet computer versions to follow. The concept is already in use in the U.S., where the classics come with added sound effects. Readers for example can hear the china cups chinking in Mr. Darcy's garden as they read Pride And Prejudice.

    A story by Booker Prize winner Salman Rushdie will be released later in the year with a specially crafted orchestral score. Rushdie's story In The South will be released with a soundtrack provided by the New Zealand Symphony Orchestra.

    The Power Of Six by Pittacus Lore, a novel for young adults, is one of the first to be tested with a soundtrack which builds in suspense in keeping with the plot. It works by timing the speed of each reader and the software measures the “turning” of a page and moves the music or sounds along accordingly. It has been created by Booktrack which synchronizes (使同步) music to each novel. It is funded by Peter Thiel, a co-founder of PayPal.

    Mr. Thiel said, “It's always exciting to witness the creation of a new form of media. The technology promises to captivate readers in a different way.”

    However, they have been greeted with horror by traditionalists, who say the technology takes away the pleasure of having one's imagination stimulated by a story. They also raise the prospect (预期) of having to ask an overly eager reader to turn their book down. David Nicholls, whose bestseller One Day was recently turned into a film starring Anne Hathaway, said, “This sounds like the opposite of reading. It would be a distraction.”

    Many people may not find the idea of visiting Beijing's Forbidden City just to see its cultural relics(遗迹)very exciting. But what if you got to see deer there too? That certainly sounds like a better day out.

    Nine deer were introduced into the Forbidden City, also known as the Palace Museum, on Sept. 26 and would make it their home until February. The beautiful animals are part of an exhibition on deer-related relics, including furniture, clothes and artworks. In ancient China, deer patterns(图案)could be seen on lots of items since lu—deer—were considered to be a lucky animal because the Chinese word shares the pronunciation(发音)of the character that means “official salary(俸禄)”.

    The deer in the Palace Museum are not only to be part of the exhibition, but also to act as ambassadors(大使)to attract visitors. “It's a better way to bring cultural relics closer to the people,”explained Wang Yamin, a deputy director at the Museum, according to ChinaDaily.

    Turning itself into a zoo is the latest effort that the museum has made at introducing academic(学术的)art to ordinary people.

    In 2014, for example, the museum's online store started to offer products such as T-shirts featuring the pattern of an emperor's coat, and earphones looking like the necklaces worn by ancient officials. These products soon gained popularity on social media because they allowed people to wear a piece of history.

    Two years later, the TV series MastersintheForbiddenCity(《我在故宫修文物》)lifted the mysterious veil(面纱)on the experts who work in the museum—people whose job is to repair the relics within it. And while many of us may have imagined these workers to be old and boring, they're actually quite young and interesting. Some are even in their 20s. They lead a peaceful career, although it can sometimes be dull. Workers aren't allowed to wear any make-up or do their nails(指甲)because the chemicals(化学物质)may damage the relics they're working on, for example.

    Little by little, the Palace Museum is shaking off the stereotypes(刻板印象)of being an old-fashioned academic institution. As Shan Jixiang, the museum's director, once said, “Academic research is not alien from the public's interest. We'd like to make visiting the museum a part of people's daily lives. ”

    It looks like the Forbidden City isn't so forbidden after all.

    Best Smartphone Games to Put Your Brain to Test

    I am a fan of NMORPGs. But sometimes I play brain games. Here are four games for you that will surely put your brain to test.

    Real Chess

    Chess has been bursting brains for many centuries, and this virtual(虚拟的) change of chess really brings a new taste. It's not an ordinary game, for it's a 3D virtual chess that lets you play with users from all around the world.

    You can chat with opponents, play with AI, get newbie(新手) tips and much more. The animations and 3D structures are really cool as well.

    Juice Cubes

    Juice Cubes is a light and colorful game full of fruity juice cubes that you need to connect to pop and clear levels. There are multiple types of challenges, power-ups, and more than 550 levels to keep you addicted.

    It might seem easy at the start, but it will burst your brain when you reach higher levels.

    WorldBrain2

    WorldBrain 2 is really a fun word game where you need to guess words based on the number of letters provided. Each word puzzle has a theme category, such as food, human body, color or even space.

    And you can also use hints (暗示) to solve the level when you get stuck. Your vocabulary is sure to be challenged in it.

    Puzzlerama

    Puzzlerama basically joins some of the top puzzles in one single app, making it a perfect app for puzzle lovers. It lets you play popular puzzle games such as flow, jigsaw, unblock, pipes, tangram and more. There are hundreds of levels available for each puzzle type and things get really tough as you advance.

    The game interface(界面) is also very colorful, and smooth animations make the game fun to play.

    Imagine a relay race. During this race, an athlete holds a stick as he runs a certain distance. Then he passes the stick to the next runner. That person runs faster, and then passes the stick to a third runner. Now imagine that the runners do not pass a stick. Instead they pass shiny silk, as well as gold, fruit, and glass. Imagine that the race does not move forward in just one direction. Instead the runners go back and forth along a road. They trade goods all along this route (路线) and at each end of it. Now imagine that the runners are businessmen. They lead caravans (商队) or lines of camels that carry things to sell. They travel on the ancient Silk Road to earn their living.

    The Silk Road was a complex trade network. It passed through thousands of cities and towns. It stretched from eastern China, across central Asia and the Middle east, to the Mediterranean Sea. Businessmen traveled on the Silk Road from about 200 B.C. to about 1300 A.D. Then sea travel began to offer new routes. Some people called the Silk Road the world's longest highway. However, the Silk Road included many routes--not just one smooth path. The routes ran through mountains and across deserts. They passed through an area that now includes 18 countries. The Silk Road had many dangers. These dangers ranged from hot sun and deep snow to thieves and wars. Only expert traders could survive.

    The Silk Road got its name from its most prized goods. People used silk as money. They could pay taxes or buy goods with it. Traders carried more than just silk, though. They had gold, silver, and glass from Europe. People in the Middle East and Asia wanted these things. Businessmen also took horses from flat, grassy areas in central Asia and brought them to China and other areas. The horses changed the way people farmed and ran their armies. Indian businessmen traded salt and rare, beautiful stones. Chinese merchants traded medicine and china. They also traded paper, which quickly replaced animal skins in the west. Businessmen carried apples from central Asia to Rome. The Chinese had learned to combine different trees to create new kinds of fruit. They taught this science to others, such as the Romans. The Romans began to grow apples for food. The Silk Road led to worldwide commerce 2,000 years before the World Wide Web.

    The people along the Silk Road did not share only goods. They also shared beliefs. Monks, priests, and other faith leaders taught their religions to others. The Silk Road created pathways for knowledge, diplomacy, and religion.

    San Francisco Fire Engine Tours

    San Francisco Winery Tour

    Running: February 1st through April 30th

    This delicious tour goes through the city on its way to Treasure Island where we will stop at the famous Winery SF. Here you can enjoy 4 pours of some of the best wine San Francisco has to offer. (Included in ticket price)

    Departing from the Cannery: Tour times upon request

    Duration ( 时长 ) :2 hours

    Price: $90

    Back to the Fifties Tour

    Running: August 16th through August 31st

    This tour transports you back in time to one of San Francisco's most fantastic periods, the 1950s! Enjoy fun history as we take you through San Francisco for a free taste of ice cream.

    Departing from the Cannery: 5:00 pm and 7:30 pm

    Duration: 2 hours

    Price: $90

    Spooky Halloween Tour

    Running: October 10th through October 31 st Join us for a ride through the historical Presidio district. Authentic fire gear(服装) is provided for your warmth as our entertainers take you to some of the most thrilling parts of San Francisco.

    Departing from the Cannery: 6:30 pm and 8:30 pm

    Duration: 1 hour and 30 minutes

    Price: Available upon request

    Holiday Lights Tour

    Running: December 6th through December 23rd

    This attractive tour takes you to some of San

    Francisco's most cheerful holiday scenes. Authentic fire gear is provided for your warmth as you get into the holiday spirit.

    Departing from the Cannery: 7:00 pm and 9:00 pm

    Duration: 1 hour and 30 minutes

    Advance reservations required.