Your school asked parents about the social development in children in the last Parents' Meeting. Here are some opinions. Read following information and answer the questions.

    Some people dream about becoming engineers. Luckily, the new IMAX film Dream Big shows how engineering can improve people's lives. It teaches viewers how engineers use high-tech to help the world. The film hits IMAX theaters nationwide on February 17 to celebrate Engineers Week.

    The film, taking place in locations like China, Dubai and Africa, tells the stories of engineers who try to come up with creative ideas to save energy and help people.

    Dream Big was directed by Greg MacGillivray who has 38 films under his belt, including some of the most successful films ever shown in IMAX theaters.

    How did MacGillivray get into the moviemaking business? “I grew up at the beach. My first movies were about surfing and the ocean. As time went on, I saw the changes in the ocean including polluting and overfishing. So I started making films about conservation of nature.” He told TFK. Now, his films cover a variety of topics, from the natural world to human creation.

    One of the engineers in Dream Big is Angelica Hernandez. In high school, she was on a team that best MIT, a university, in an underwater robotics competition. Today, the engineering work she does focuses on helping people use less energy and save money and resources. “I work with companies to promote energy efficiency with their commercial customers, so it's really trying to push forward all the measures that customers and high-energy users can apply, she explains.

    Engineering is such a good job-you make good money, travel around the world, solve amazing problems and help people.” She says.

    The mission of Dream Big is to show people the good that engineers can do to the world. “That was the impulse of making this movie”, MacGillivray explains, “We want to explain engineering in a way that will get the kids very excited about it.” “Whoever and wherever you are, you can become an engineer,” he adds, “All you need is the creative spirit.”

    Skeptics are a strange lot. Some of them refuse to admit the serious threat of human activities to the environment, and they are tired of people who disagree with them. Those people, say skeptics, spread nothing but bad news about the environment. The “eco-guilt” brought on by the discouraging news about our planet gives rise to the popularity of skeptics as people search for more comforting worldviews.

    Perhaps that explains why a new book by Bjorn Lomborg received so much popularity. That book, The Skeptic Environmentalist, declares that it measures the “real state of the world” as fine. Of course, another explanation is the deep pockets of some big businesses with special interests. Indeed, Mr. Lomborg's views are similar to those of some Industry-funded organizations, which start huge activities through the media to confuse the public about issues like global warming.

    So it was strange to see Mr. Lomborg's book go largely unchallenged in the media though his beliefs were contrary to most scientific opinions. One national newspaper in Canada ran a number of articles and reviews full of words of praise, even with the conclusion that “After Lomborg, the environmental movement will begin to die down.”

    Such one-sided views should have immediately been challenged. But only a different review appeared in Nature, a respected science magazine with specific readership. The review remarked that Mr. Lomborg's “preference for unexamined materials is incredible(不可信的)”.

    A critical (批判的)eye is valuable, and the media should present information in such a way that could allow people to make informed decisions. Unfortunately, that is often inaccessible as blocked by the desire to be shocking or to defend some special interests. People might become half-blinded before a world partially exhibited by the media. That's a shame, because matters concerning the health of the planet are far too important to be treated lightly.

    British children generally learn how to ride a bike at a young age. I am an exception to that rule. It's not my dad's fault—he tried to teach me. I remember cycling around the neighborhood. To be honest, though, I never saw the appeal. One of my earliest memories is falling from my bike and into some spiny(多刺的) plants. I definitely didn't want to repeat that.

    So I stopped learning. My dad wasn't going to waste his time teaching someone who didn't want to be taught. Time passed and I accepted that I couldn't ride a bike. It never affected my life in high school because I lived close enough to walk.

    I never felt like I was missing out until I couldn't go on a bike ride with friends in Byron Bay because I was only confident that I could go on a flat surface in a generally straight line. So when the opportunity came up to bike the wall of Xi'an, I wanted to prove to myself that I could do it and make up for missed time. So, with a friend who is very patient, I got on the bike. Instantly nothing came flooding back to me, I had absolutely no idea how to start! "Push off with one foot hard" was my instruction. It sounded simple enough but it just would not happen. Until something clicked and suddenly I was off, going in a straight line on a flat surface and managing to avoid the Chinese tourists who obviously found exaltation on my face.

    At 22 years old, I finally learnt how to ride a bike, and nothing can hold me back.

    A university in Nanjing, Jiangsu province, has installed facial recognition systems in classrooms to monitor students' behavior, sparking a heated debate online. China Pharmaceutical University recently installed the systems in two pilot classrooms as well as school gates, dormitory entrances, the library and laboratory buildings.

    Xu Jianzhen, director of the university's library and information center, told TbePaper.cn that the systems will help teachers check student attendance and monitor behavior during the lectures. "In the past, some students just checked their attendance and ditched the class or asked other students to check the attendance for them. Now with facial recognition, that would no longer be a problem," he said. "The moment you enter the classroom, the camera will monitor you all the way through and can tell how long you lower your head, whether you're playing with a smart phone, whether you're dozing off or reading other books," he added.

    The news has raised wide debate on Chinese social media, with many questioning if the cameras will violate students' privacy. A Sina Weibo user said: "I oppose such methods, and it is not clear whether the systems are developed by the school itself or by third parties. If it is the latter, is there any regulation of security? Where will the information be sent and stored?"

    Gan Xiangsi, a senior student from the university, said she welcomed the systems being applied in dormitories and libraries as this can help prevent personal belongings being stolen，but it is not necessary to use such technology in the classroom. "If the teacher teaches well，the students will be interested," she said. "On the contrary, this kind of monitoring will make everyone feel resistant."

    China Pharmaceutical University is not the first university to use facial recognition technology on campus. Many universities across the country have installed cameras at campus entrances to ensure safety. But many are also hesitant when it comes to applying such technology in classrooms.

    "This issue has been debated for quite a long time," Chu Zhaohui, a senior researcher at the National Institute of Education Sciences, told China National Radio. According to Chu, teachers and students who are under observation might not behave as they normally would since they know they are being watched. "Cameras should not be installed in classrooms merely for effective teaching purposes," Chu said, as teachers are also being observed. He agreed that "students' privacy needs to be protected". He also said that not putting classrooms under control is an important principle. "If you don't follow this principle, students will falsify and disguise their state of listening，and teachers may also not perform as well. Then real teaching will not occur," he added.

    I did some research and examined how British English and American English changed between the 1930s and the 2000s. Take spelling, for example towards the 1960s it looked like the UK was going in the direction of not using the "u" in "colour" and writing "centre" as "center". But since then, the British have become more confident in some of their own spellings. In the 2000s, the UK used an American spelling choice about 11% of the time while Americans use a British one about 10% of the time. There is also no need to worry too much about American words, such as "vacation", "liquor" and "lawmaker" entering British English. There are a few examples of this kind of vocabulary change but they are mostly uncommon words and are not likely to change British English too much. The British are still using "mum" rather than "mom" and "petrol" rather than "gas".

    But when we start thinking of language more in terms of style than vocabulary or spelling, a different picture appears. Some of the bigger trends (趋势) in American English are moving towards a freer use of language. American sentences are usually one word shorter in 2006 than they were in 1931.

    Americans also use a lot more apostrophes (撇号) in their writing than they used to, which has the effect of turning the two words "do not" into the single "don't". "The hand of the king" becomes the shorter "The king's hand".

    However, in all these ways Brits are changing too—and in the same way as Americans. They're just about 30 years behind the trend that Americans seem to be leading.

    So this raises a question, is British English actively following American English or is this something that is simply a natural trend in language use? Perhaps the British would have gone in that direction even if America had been discovered? I'd like to agree with the second idea but because of the fact that British people learn plenty of American language through different ways, I think the first is more correct.