2 . By now, we are all aware that social media has had a tremendous influence on our culture, in business, on the world-at-large. Social media websites revolutionized the way people communicate and socialize on the Web. However, aside from seeing your friend’s new baby on Facebook, or reading about Justin Bieber’s latest conflict with the law on Twitter, what are some of the real influences?

Social networks offer the opportunity for people to re-connect with their old friends and acquaintances, make new friends, share ideas and pictures, and many other activities. Users can keep pace with the latest global and local developments, and participate in campaigns and activities of their choices. Professionals use social media sites like LinkedIn to enhance their career and business development. Students can work together with their peers to improve their academic and communication skills.

Unfortunately, there are a few downsides too to social networking. If you are not careful, immoral people can target you for cyber bullying and disturbance on social sites. School children, young girls, and women can fall victim to online attacks which can create tension and suffering. If you are a victim of cyber bullying, do not take it lying down, but try to take appropriate legal action against the attacker.

Many companies have blocked social networks as addicted employees can distract themselves on such sites, instead of focusing on work. In fact, studies show that British companies have lost billions of dollars per year in productivity because of social media addiction among employees.

Also, what you carelessly post on the Internet can come back to trouble you. Revealing (泄露) personal information on social sites can make users vulnerable (易受伤害的) to crimes like identity theft, stalking, etc. Many companies perform a background check on the Internet before hiring an employee. If a potential employee has posted something embarrassing on social media, it can greatly affect their chances of getting the job. The same holds true for our relationships too, as our loved ones and friends may get to know if we post something undesirable on social networks.

Social media has its advantages and drawbacks as each coin has two sides. It is up to each user to use social sites wisely to enhance their professional and social life, and exercise caution to ensure they do not fall victim to online dangers.

A．	B．
C．	D．

5 . In 1914, Ernest Shackleton and his team left England in a wooden sailing ship called the Endurance, hoping to become the first to cross Antarctica.

But in 1915, the Endurance became trapped over the Weddell Sea. The ice destroyed the Endurance and later sank it. Shackleton and all of his men abandoned the ship and managed to stay alive. Although they failed to complete the expedition, the tale of their long and difficult return is one of the most famous survival stories of all time.

Much was known about the location of the Endurance. The ship’s captain kept accurate records of the ship’s position. The ship’s photographer even took pictures of it as it went down. But the ship, deep in the icy waters near Antarctica, had never been found.

Now, a search team called “Endurance22” located the ship, which was found 1.87 miles below the ocean’s surface, about four miles south of its last known position. The team reports that the ship is in excellent shape. Even though the ship is made of wood and is over 100 years old, it has survived with little damage. Scientists say that the small worms that normally break down wooden objects underwater don’t live in the cold waters around Antarctica.

The Endurance 22 is led by the Falklands Maritime Heritage Trust. The team ran the project from an ice­breaking ship. To locate the Endurance, the team used two underwater robots called Sabertooths which can travel by themselves deep under the sea. What makes them unique is that they can travel under the ice and go where the ship can not. Once the ship was located, the Sabertooths used high­quality cameras and scanners to record the Endurance in detail.

The Endurance 22 plans to create a digital 3D model of the wreck site, using the careful scans they made. This will allow scientists to study the ship in detail without disturbing it.

7 . Empathy (同理心) is one of those strange qualities — something almost everyone wants, but few know how to truly give or receive it. In a world where self-satisfaction is emphasized, it is in short supply but high demand. This is all the more reason to teach the next generation what it means to have empathy for those around them.

What Is Empathy? — Many people confuse sympathy and empathy, but they are two distinct values. Empathy is not just the ability to understand someone's feelings; criminals often take advantage of people by appearing to understand their feelings and subsequently gaining their trust. Empathy is more than that. Not only is it the ability to recognize how someone feels, but it also values and respects the feelings of another person. It means treating others with kindness, dignity, and understanding.

Kids Need To See Adults Show Empathy — While some children are gifted with naturally kind hearts, in most cases kids need to see empathy modeled by the adults around them. It begins with the way parents relate to their children. Parents who show an interest in the things that matter to their kids and respond to emotions in a positive and caring way are teaching the skill of empathy.

Meet Emotional Needs — When children have their emotional needs met, two things happen. They learn how to meet the emotional needs of others and they are anchored in what they are receiving, meaning that they are secure enough to give to others when the need arises but first they need to receive. An empty jug cannot fill a cup.

It's a good idea to talk to kids about emotions and how other people experience them. Give their emotions names (for example, jealousy, anger, and love) and teach them that these are normal. Talk to them about how to handle emotions in a positive way and point out situations where other people are experiencing emotions. Teach them about respecting the emotions of others and show them how to act in a situation where a response is required.

It is often the case, when having meals, waiting buses or at tending lectures, you can always find people addicted to their cellphones, completely ignoring others.

This is really a common phenomenon in our daily life. The reason is why smart phones nowadays can be used to playing mobile games and keep in touch with friends. However, too much exposure to phones are bad for people in terms of healthy. Moreover, people involving in phones fail to communicate well with these around them.

As far as I am concerned , people should be wisely make use of their phones to help with their work and study. Meanwhile, they should care much about their family and friends than mobile phones.

9 . Instagram（图片分享社交应用程序）is about to take its biggest step toward removing likes from its platform. After months of testing an option to hide likes in select international markets, Instagram, which is owned by Facebook（FB）, has already been testing hiding likes in seven other countries, including Canada, Ireland and Australia. For years, likes have been central to how celebrities, brands, politicians and everyday users experience Instagram and Facebook. It's a way of measuring popularity and success. But in recent months, Instagram has been rethinking how likes contribute to making its platform more toxic. Now it's considering a change.

The total number of likes on posts — which appear as hearts on the app ——will disappear from Instagram's main feed, profile pages and permalink（永久链接）pages. The owner of the account can still see their own likes, but their followers won't know the count.

CNN Business previously spoke with users in countries with the test. The majority felt this move would improve well-being on the app. Instagram is the most detrimental（不利的，有害的）social networking app for young people's mental health, such as negatively impacting body image, according   to one study.

But other users and psychologists said hiding likes won't fix everything. The test doesn't address some of the key ways that activity on Instagram can impact the well-being of users, including bullying, feeling left out and thinking other people's lives are better than their own.

Renee Engeln, a psychology professor at Northwestern University, voiced his opinion that the biggest impact of Instagram is the content and the exposure to this constant stream of perfected images is what seems to hurt psychologically. Plus, users can still see their own likes ——and feel badly if their posts don't perform well.

10 . There’s no doubt that one of the greatest human achievements is the exploration of the space. Ever since astronaut Yuri Gagarin became the first person to be sent into the orbit around the moon in 1961, scientists have been pushing the boundaries further and further. But until now the exploration into the unknown has been dominated (主导) by men.

Of course, in the past, women were also included in the space projects and played an active role on the ground and behind the scenes. For example, they worked as seamstresses (女裁缝师), sewing vital spaceflight components. In fact, many of NASA’s key works would never have been possible without them. Recently Hollywood produced a movie called Hidden Figures to focus on a group of American female mathematicians, especially the black women, who helped NASA send the first American into space. But this was not women’s only contribution. Back in 1963, Soviet astronaut Valentina Tereshkova became the first woman to be sent into space. However, after that, space flight programs were slow to employ women. In the USA. NASA didn’t accept applications from women to become astronauts until 1978.

But attitudes have changed and leading officials at NASA say that the first person to set foot on Mars should be a woman. The space agency aims to have a sex-balanced workforce but can only achieve that if equal numbers of men and women are trained for science and technology jobs. As Allison McIntryre told the BBC, “My director is a woman. We have female astronauts. We haven’t put a woman on the moon yet. And I think that perhaps the first person to step on Mars should be a woman.”