There are some very good things about open education. This way of teaching allows the students to grow as people, and to develop their own interests in many subjects. Open education allows students to be responsible for their own education, as they are responsible for what they do in life. Some students do badly in a traditional classroom. The open classroom may allow them to enjoy learning. Some students will be happier in an open education school. They will not have to worry about grades or rules. For students who worry about these things a lot, it is a good idea to be in an open classroom.

    But many students will not do well in an open classroom. For some students, there are too few rules. These students will do little in school. They will not make good use of open education. Because open education is so different from traditional education, these students may have a problem getting used to making so many choices. For many students it is important to have some rules in the classroom. They worry about the rules even when there are no rules. Even a few rules will help this kind of students. The last point about open education is that some traditional teachers do not like it. Many teachers do not believe in open education. Teachers who want to have an open classroom may have many problems at their schools.

    You now know what open education is. Some of its good points and bad points have been explained. You may have your own opinion about open education. The writer thinks that open education is a good idea, but only in theory. In actual fact, it may not work very well in a real class or school. The writer believes that most students, but of course not all students, want some structure in their classes. They want and need to have rules. In some cases, they must be made to study some subjects. Many students are pleased to find subjects they have to study interesting. They would not study those subjects if they did not have to.

    NANJING, Nov. 4 (Xinhua) — Xi Jinping and Ma Ying-jeou will shake hands in their historic meeting scheduled in Singapore on Saturday, head of the Taiwan Affairs Office of the State Council said on Wednesday.

    The two-part meeting includes one session open to the media and another behind closed doors, said Zhang Zhijun, who is also head of the Taiwan Work Office of the Communist Party of China (CPC) Central Committee, when interviewed at the Zijinshan Summit for Entrepreneurs across the Taiwan Strait.

    According to Zhang, Xi and Ma, as "leaders of the two sides" of the Taiwan Strait, will exchange views during the closed-door meeting.

    After the meeting, press conferences will be held by both sides. Later, the two leaders are expected to attend a dinner, said Zhang.

    Zhang said the meeting will lift cross-Strait communication to a new high.

The landmark meeting is a breakthrough in face-to-face exchange and communication between the leaders across the Taiwan Strait after the relationship became strained following the events of 1949.

    Zhang said the meeting will improve mutual trust and allow for an exchange of opinions on handling the cross-Strait ties.

    In addition, the meeting will help strengthen the 1992 Consensus(共识), which was reached in talks between the two sides in 1992 and recognizes the one-China principle, and safeguards the peaceful development of cross-Strait ties, according to Zhang.

    Zhang added that the scheduled meeting will also benefit regional peace and stability.

    Also at Wednesday's summit, Chiang Pin-kung, former chairman of the Taiwan-based Straits Exchange Foundation, hailed the upcoming meeting between the two leaders as a milestone for cross-Strait ties.

    Chiang told the media that he believed the meeting will give a boost to the peaceful development of cross-Strait ties.

    Nov. 21 is World Hello Day. It began back in the 1970s as part of an effort to make the world more peaceful. It was created by the United Nations just after the war between Israel and Egypt in 1973. The philosophy (理念) behind it is: Say “Hello” and stop war.

    It sounds like a fine idea, but most of us know that simply saying “Hello” won't bring about world peace. Still, on a smaller range, the simple act of saying hello to someone can make a lot of difference.

    This might not be obvious. After all, it's such a casual thing and requires so little effort. You raise your head to someone as you pass by them in the school corridor (走廊), say “Hello' then it's over.

    Although we might not realize it, a small thing like a greeting can mean a lot to a person. Many people are lonely because they're shy. They find it difficult to communicate with people, even though they want lo. It leads to them feeling cut off.

    On this basis, maybe it's a good idea, not just on Nov. 21, but every day, to remember to say “Hello” to as many people as we can. The stranger who hears your greeting may secretly smile in their heart. You might even make their day.

    Greeting other people is the easiest way to be polite. Politeness is the way we individual humans link up with the rest of the human world outside of our circles of family and friends. Politeness is one of the aspects of culture that make us a society rather than just many individuals living in the same space.

    No one said it better than the French author Joseph Joubert: “Politeness is the flower of humanity''. A “Hello” to a stranger is a small thing, and often neglected (忽视), but through it we can make the world better for another person.

    Let's pay a visit to some of the most amazing and unusual places in the world, from icy hotels to temples on the side of cliffs（悬崖）.

    Hotel de Glace－Canada

    If you don't mind the cold, this igloo（冰屋）style hotel is certainly for you. Nearly everything, including the bedding, is made of ice! This hotel is so well insulated（隔热）that whatever the temperature outside is, the temperature inside never changes more than a few degrees. It's around 23 degrees to be exact. Since it is made of ice, the hotel does have some dress requirements that can be found on their website. Arctic sleeping bags are provided for every guest, including children. For more information, visit the website: http://www.icehotelcanada.com.

    The Tigers Nest Monastery－Bhutan

    Built directly onto a cliff side, this ancient temple has claimed（声明）its spot since 1692. Rich in history, Tigers Nest is constructed around eight attractive caves on the mountainside. Most of the caves are easy to reach through the natural rock stairways. However, some are more difficult, and can only be reached by shaky rope bridges. Visit the website http://www.bhutantouroperators.net/taktsang-monastery.php for more information.

    Dinosaur Provincial Park－Canada

    Known to be one of the greatest fossil（标本）locations in the world, Dinosaur Provincial Park has nearly 500 specimens（标本）in all shapes and sizes. The park itself has a vast collection of fossils and a unique natural ecosystem. For more information, please visit http://tpr.alberta.ca/parks/dinosaur/index.aspx.

    Leshan Giant Buddha－Sichuan China

    The world's largest Buddha sits on the edge of two great rivers. Construction is believed to have started around the year 713, and at the time of this construction it was the tallest carved statue in the world. All 233 feet of the statue was carved from the surrounding cliffs and preserved （保存）in amazing condition. Even the 2008 earthquake was not enough to shake it. Its website

http://yeschinatour.com/china-guides/china-attractions leshan-giant-buddha-leshan will provide you with more information.

    There are billions of people on this planet, and many of us love to eat meat. In 2018 alone, the average American will consume more than 100 kgs of red meat, according to a report from the US Department of Agriculture (USDA). At the same time, the environmental impact caused by meat consumption – waste, animal treatment, health issues and even the greenhouse gas effects – has given rise to a number of startups (新兴企业) looking for ways to fill our growing demand for meat. But can the demand be filled in a sustainable and affordable way?

    A bunch of companies are not only optimistic but are working to make this happen sooner. All of these companies harvest cells from animals and grow them in a lab. For example, San Francisco-based Memphis Meats is developing cell-based meats in its laboratories by manufacturing fat and muscle cells without requiring any animals. And don't worry if you're not a meat lover. Startups such as Jet Eat, which is based in Israel, are working on food products grown in labs that are plant based and produce meats using natural ingredients while still maintaining flavor, consistency and the "overall sensory experience".

    As you can imagine, there are plenty of hurdles facing the industry. Educating the public is a big one. Another controversial issue is the labelling of the products. Meat industry trade groups have been pressing the USDA to more strictly regulate alternative meats, labeled as "imitation products".

    Many of us have concerns about the challenges facing future generations as our global population swells and the earth's natural resources shrink. The good news is that there are plenty of companies around the world—like those producing lab-grown meats - who are working to solve some of these problems and make a few bucks in the process. Nothing wrong with that.

    Dr. Nancy Roman, born in 1925, who was celebrated as a pioneer for female scientists and had advanced the launch of the Hubble Space Telescope, died on Dec 25, 2018.

    When Nancy Roman asked for permission to take a second algebra (代数)course in high school,a teacher demanded to know "what lady would take mathematics instead of Latin". In college, a professor admitted that he often tried to prevent women from majoring in physics but Nancy stuck to it. And after receiving Doctor's degree in astronomy. , she found a professional home at NASA(美国宇航局)In 1959, Dr. Roman became the first chief of astronomy at NASA. headquarters, a role that made her one of the agency's first female leaders.

    Dr Roman spent much of her career helping develop, fund and promote technology that would help scientists see more clearly beyond Earths atmosphere. But her most well-known work was perhaps leading to design the Hubble Space Telescope the first major telescope to be sent into space for the purpose of gathering photographs and data from the universe. She was, therefore, named as "the mother of Hubble".

    "She made it possible to get the early telescope up into space to learn what needed to be learned," said science historian Bob Zimmerman: and her hard-nosed nature helped get the telescope built.

    The telescope did not launch until 1990, a little more than a decade after Dr Roman retired, but when it did, its photographs of the universe thrilled the world.  I am glad, "she once told Science, "I ignored the people who told me that I could not be an astronomer. "