根据短文理解，选择正确答案。

    Love it or hate it, there is no escape from Internet slang(俚语).

    This is especially true among young people in some English-speaking countries such as Australia, the UK and the US. These days, if they haven't caught up with the latest popular Internet slang, chances are that they often feel behind the times.

    Take these posts by The Washington Post for example: “David Bowie dying is totes tradge” and “When Cookie hugged Jamal, it made me totes emosh. ”

    What on earth do these mean? Well, “totes” is a short form of the adverb “totally”. Likewise, “tradge” means “tragic” and “emosh” means “emotional”.

    It seems that, for millennials (those born between the early 1980s and late 1990s), typing in this abbreviated form is not only time-saving but also in.

    Many millennial slang words are formed by what linguists(语言学家) call the practice of  “totesing” —the systematic abbreviation of words, according to a recent article in The Washington Post.

    Some people think that millennial slang affects the English language negatively. However, Melbourne University linguist Rosey Billington doesn't agree.

     “When you are able to use language in a creative way, you show you are linguistically knowledgeable because you know the language rules well enough to use words in a different way.” Billington told News.com.au.

    Her view is supported by two linguists, Lauren Spradlin and Taylor Jones, from the City University of New York and the University of Pennsylvania respectively. The two believe that totes-speak is a highly-organized system that can only be used by speakers who have mastered English pronunciation.

    The ability to break apart syllables(音节) and mix different sounds together is key. “Totesing is about sounds, and it follows the sometimes-complex sound system of English,” Jones told The Washington Post. “Totesing is considered random by some people, but it's not true. Instead, it has strict rules to follow. You need to be very fluent in the English language to be able to understand totes-speak. ”

    Following news of the potential for life on the recently-discovered TRAPPIST-1 system, there may be another competitor ready to take its place.

    With the help of the Cassini spacecraft, NASA (National Aeronautics and Space Administration) scientists have picked up the first evidence that chemical reactions are taking place deep below the surface of Enceladus, Saturn's (土星的) sixth-largest moon. This means that there could be life in Enceladus' warm underground seas.

    An early study found that liquid oceans exist miles below Enceladus' surface. But to reveal what is happening down there, scientists must rely on the plumes (股) of water that spray (喷射) through cracks in Enceladus' icy surface. In October 2015, NASA sent Cassini into a deep dive into one of the plumes.

    Cassini's findings, published on April 13 in the journal Science, showed that hydrogen (氢) not only exists on Enceladus, but is also responsible for a chemical reaction between hot rocks and water in the ocean beneath its surface.

    This same process on Earth provides energy for entire ecosystems around volcanic vents (火山口). There, tiny creatures are able to survive without sunlight, using hydrogen and carbon dioxide as fuel in a process known as “methanogenesis (甲烷生成)”.

    The discovery of this chemical energy source on Enceladus means it could be a very good candidate to host life.

    “Confirmation (确认) that the chemical energy for life exists within the ocean of a small moon of Saturn is an important milestone (里程碑) in our search for habitable (可居住的) worlds beyond Earth,” Linda Spilker, Cassini project scientist at NASA, told the Daily Mail.

    Alien life was once only thought possible on habitable planets within the “Goldilocks zone” – far enough from our sun not to be a fireball, but not so far as to be freezing.

    Research on Enceladus is still in its early stages, but the recent findings have important meanings for future exploration.

    “At present, we know of only one genesis (诞生) of life, the one that led to us,” David Rothery, professor of planetary geosciences (行星与地球科学) from the Open University in the UK, told The Telegraph.

    “If we knew that life had started independently in two places in our solar system, then we could be pretty confident that life also got started on some of the tens of billions of planets and moons around other stars in our galaxy,” he said.

    Their beautiful call suggests the arrival of spring, but the routes taken by cuckoos(杜鹃) during their annual migration(迁徙) have remained a mystery. Now, though, scientists from the British Trust for Omithology(BTO) have revealed the details of their remarkable 10,000-mile journey, with the help of tracking devices.

    Five male birds were caught in Norfolk last May and fitted with satellite-tagged "backpacks" before being released. The scientists then monitored their progress over 12 months as they flew to Africa in the autumn, and returned in the spring.

    The project was carried out to discover why every year fewer of the birds return to Britain. Between 1995 and 2010，the population of cuckoos spending summer here fell by almost half, and the number is continuing to decline. Previously, the lack of information about the cuckoos' long migration has hampered the understanding of how to help conserve the birds.

    Earlier this year, it was reported that cuckoos arrived in the UK much earlier than normal. Their call was recorded by ornithologists(鸟类专家) as early as February, a month ahead of their usual arrival.

    Like all migrating animals, cuckoos respond to the changing seasons. They depend on lush plants to provide the fruit and food for insects that they feed on. This reliance on seasonal patterns means that a changing climate could make an already challenging journey impossible for them.

Adult Education Courses

    Charles Darwin lived an unusually quiet life. In 1842, Darwin and his wife Emma moved from London to Kent in southern England to have as little disturbance (烦扰) as possible. They already had two children then, and would go on to have eight more in the country.

    Darwin had very regular (有规律的) habits. He rose early and went for a walk. After breakfast he worked in his study until 9：30 am, his most productive time of the day, and then read his letters lying on the sofa before returning to work.

    At midday he would go for another walk with his dog, stopping at his greenhouse to inspect (查看) his experiments. Then he would go for another walk around an area of woodland. While walking on his "thinking path", Darwin would consider his unsolved scientific problems.

    After lunch he read the newspaper and wrote letters. His network of friends provided information from all corners of the world.

    The Darwins were not very strict parents and the children were always seen running wild. Their father worked patiently to a background of playful shouts and little footsteps walking past his study door.

After dinner Darwin played backgammon (a game for two people to play) with his wife. He once wrote, "Now the result with my wife in backgammon stands like this: she... has won only 2,490 games, while I have won, hurrah (a cheer of joy or victory), hurrah, 2,795 games!"

    Although he had poor health, Darwin continued to publish (出版)a lot of creative works until his final book in 1881. He died the following year, aged 73.

    Rather than a quiet space in the local churchyard, which he called "the sweetest place on Earth", Darwin was given a state funeral (国葬) in London's Westminster Abbey.

With more recognition than Halloween and less than Christmas, Valentine's Day as an imported festival faces a dangerous situation in China, where it's caught between forces of tradition and fashion. Valentine's Day has a natural enemy in China. And it is not the Chinese equivalent, which falls on the seventh day of the seventh month on the lunar calendar, usually around half a year away from Feb. 14. It is the Spring Festival, also known as the Chinese New Year, that will influence the Feast of Saint Valentine.

The real disagreement between East and West probably took place over a century ago, when China's door was forced open by Western powers and Chinese scholars supported westernization as a means to strengthen our nation's ability to compete.

The introduction of the solar calendar and Western measurements was both an acknowledgment of their influence and an effort to be accepted by the world order.

For a full century, we have had two systems running in parallel. When it comes to the eventual outcome, practicality usually beats all other concerns. Laws can help, such as the three traditional festivals of Tomb Sweeping, Dragon Boat and Mid­Autumn gaining legal status in 2008 and giving every Chinese citizen a day off, but laws cannot push what people have no feelings for. So, the celebration or boycott of imported holidays or homegrown ones should be no cause for worry. If they are irrelevant, no social media will change the public's mind; and if they are accepted, there must be a need which they happen to satisfy.

Since we have no global Qin Shihuang to force one system on every country, we can always rely on a dual (双重的) approach by which we share with the outside world on the one hand but preserve our own ways of life on the other.