Mencius（孟子）was one of the great minds in history. It is said that he 1 near a school and gained a love of learning there. His book, Mencius, was one of the most 2 books in history. The book was on Confucian philosophy. There are many 3 about young Mencius. Here is one.
When Mencius and his mother were living near the market, there were many people selling meat. His mother made a living by weaving（织）and 4 the cloth. She made little money and wasn't able to 5 meat.
One day, on his way home, Mencius heard one of his neighbors killing a pig. He 6 ran home and asked his mother, "Why does he 7 his pig?" His mother, who was busy with her chores, answered without thinking, "So that you can have meat in your meal." Mencius was 8 and clapped his hands, "I can eat meat!"
Seeing that Mencius was so happy, his mother felt sorry for lying to her son. "Having no meat to eat is not a big deal, but it would be 9 if he learns to lie from me," she thought. To make up for her 10 , his mother brought a piece of meat with the little money she had and cooked it for him.
Recently, a math teacher from Peking University has become popular on the Internet. In a video, he introduced himself as a student who graduated from Peking University's School of Mathematical Sciences and a gold medalist（金牌获得者）in the International Mathematical Olympiad.
Netizens immediately found that this was the celebrated assistant professor in Peking University — Wei Dongyi. He is known as "Chen Jingrun No. 2" because he is a mathematical genius.
Wei Dongyi was born in Shandong Province in 1991. He showed great talent in mathematics from a very young age. When Wei was a student at High School Attached to Shandong Normal University, he joined the school's Olympiad training team. Then he took part in the International Mathematical Olympiad training. Because of the wonderful experiences, he fell in love with math and went on to win many first place prizes.
In 2008 and 2009, his amazing performances at the 49th International Mathematical Olympiad and the 50th International Mathematical Olympiad made him famous around the world. Wei got two gold medals with full marks. After that, Wei studied at Peking University for four years. Then he got his master's degree and PhD in only three and a half years. In 2019, Wei completed his post doctoral work and became an assistant professor of the university. He still has a love for math and enjoys a simple life. Hearing of his experience, many students were excited and showed their great respect for him.
To make sure of Wei's peaceful life, the university called for reducing attention on Wei. "We hope that people who care about this great teacher will join us in creating an environment for young students to focus on research," the university wrote.
When it comes to raising children, Japan has probably achieved more than any other developed country. A recent report by UNICEF（联合国儿童基金会）shows that Japan tops the list for the childhood health condition with a lower rate of childhood obesity（儿童肥胖率）in the world.
Experts say there are many reasons behind the achievement. Japanese people pay great attention to their health and organize physical examinations for their children at a certain time. Besides, the school lunch programme plays a key role.
The school lunch programme in Japan can date back to as early as 1889, when rice and fish were provided for children living in poor areas in the north of Japan. And after World War Ⅱ, the programme spread around the country.
School lunches with menus created by nutritionists（营养师）are provided for all primary schools and most junior high schools across Japan. Students have to eat school lunches and are not allowed to pack a lunch. Each meal is designed to have around 600~700 calories balanced with carbohydrates（碳水化合物）, meat or fish and vegetables.
What's more, the Japanese government studies nutrition and eating habits in Japan once a year, and uses the results to shape what should go into the school meals. In this way, the school lunches can include the nutrition that may not be available at home.
Different from some Western countries, Japanese school lunches are usually served in the classroom. Students usually give out the food to each other and clean up the room after eating. The school lunch programme is also seen as part of education under the law. It's not just about eating food, but about children learning to serve and clean up on their own.
Can plants talk? Modern research has found something amazing. They do communicate with each other.
It has been known for some time that plants use chemicals to communicate with each other. This happens when a plant gets attacked by insects. The plant gives out chemicals from the leaves that are being eaten. This is like a warning, or a call for help: "I'm being attacked!" When another plant gets the chemicals, it starts to give out its own, different chemicals. Some of these chemicals drive insects away. Others attract the wasps（黄蜂，蜜蜂）! The wasps kill the insects that are eating the plants. Scientists hope to learn more about this plant warning system, so that we can use it to grow more crops.
More surprisingly, plants also use sound to communicate. People can't hear these sounds, but plants are making them. Some plants make noises with their roots. Corn and chili plants do this. Some trees make clicking noises when there is not enough water.
Most surprisingly of all, plants have an amazing system of communication that can link nearby every plant in a forest. Scientists call this system the "wood wide web". The wood wide web is linked underground by fungi（霉菌）. It links the roots of different plants to each other. It is in some ways similar to the Internet we use. Using the wood wide web, plants can share information and even food with each other. However, it may lead to bad effects. Plants may use it to steal food from each other, or spread chemicals to attack other plants. Perhaps one day scientists will learn how to create a "firewall" to help prevent these attacks within the wood wide web.
Scientists are learning more every day about the secret ways in which plants talk to each other. Maybe one day we will know enough about plant communication to be able to "talk" with them ourselves.
B . 
C . 
D . 
|
A. Volunteering comes in any form and size. B. Volunteering also influences your mental health（心理健康）. C. Volunteering can also help you improve personal skills. D. Many people find that they can forget their personal worries by paying attention to others' needs. E. This is especially true if you match volunteering to your interests. F. What can you do if you want to volunteer but don't how to start? |
Volunteering is a great way to help others. Helping others can actually help yourself, too.
What is volunteering? If somebody volunteers, he will do something that's good for anther person or the world around him without being paid. It can be working for children's hospitals or helping your neighbors with their food shopping. Many people volunteer to protect the environment by picking up litter or planting trees.
Research has shown that volunteering brings you happiness. Also, it can give you a sense of purpose, and make you develop your self-confidence. For example, if you're crazy about nature, why not volunteer for a wildlife organization?
By helping others, you feel a positive emotion（积极情绪）and this is good for your health. Volunteering can also reduce your feeling of anxiety（焦虑）. "It is good news for our mental health," says Jolie Goodman from the Mental Health Foundation.
You can go to find an organization and ask if they need any helper. Or you can set up a volunteer group in your school. As long as you want to help, there are many chances waiting for you.
|
A. Barcelona Barcelona is thought to be the best beach city in the world. There are seven beaches with a total of 4.5km of coastline. The seaside area is a typical leisure area. It is known for its delicious food, energetic culture and beautiful beaches. |
|
|
B. New Orleans As the birthplace of jazz music, New Orleans is famous for Mardi Gras（狂欢节）. It continues for one to three months. During the festival, streets come alive with music, art, picnics and people wearing special clothes. |
|
|
C. Berlin From the Soviet War Memorial（苏联战争纪念碑）and the Berlin Wall to the Holocaust Memorial（大屠杀）, Berlin is a city with so much history. It tells its stories through these things, and gives visitors an understanding of the history that continues to shape the city today. |
|
|
D. Kalmykia Kalmykia is known as the capital of the chess world. In 1998, a Chess City was built there to hold the 33rd Chess Olympiad（国际象棋奥林匹克）. It was home to several smaller chess games in later years. |
|
|
E. Thames Town Located in Songjiang District, Thames Town is a large British-style community. It is about 41 kilometers from central Shanghai. Today, more and more people visit the town for relaxation by taking photos or attending various exhibitions and activities. |
|
|
F. Mexico Mexico is one of the birthplaces of the Mayan culture of the ancient Indians. Here you can understand how ancient Indians, with no metal or transport, created a great civilization（文明）with primitive（原始的）tools of production. |
|
Do you often study online? Since the outbreak of COVID-19, many schools (provide) video lessons for students. However, parents have always worried the impact（影响）of online learning.
UCLA's Department of Psychology finished a study recently. study discovered that watching teaching videos at twice the normal speed has almost no bad impact on learning. Instead, it may lead to better test results when the speed increases.
In the study, researchers put students into groups and asked them (watch) teaching videos at different speeds. They couldn't take (note) or stop while they were watching. The students then took tests.
The test results showed little difference in scores between students who watched at normal speed and those watching at double（两倍的）speed. It means that students can save half of (them) study time, with little impact on learning. But students shouldn't speed up too much. They will have lower test scores they watch the videos at 2.5 times the normal speed.
Some students in the study had enough patience to watch the videos (two) at double speed. The study also compared their scores with those of students watching once at normal speed. The results showed the scores of the former（前者）was (high) than those of the latter（后者）.
According to UCLA's study, we can see that, if students use video lessons (wise), they can study more efficiently（有效率地）.
|
生卒 |
1930年9月7日出生于北京，2021年5月22日逝世于长沙 |
|
经历 |
从小立志学农； 1953年毕业于西南农学院（Southwest Agricultural College），成为一名教师； 20世纪60年代开始研究杂交水稻，已解决中国的粮食问题； 20世纪70年代，成功研发出杂交水稻，推动杂交水稻走向世界； 2019年9月，被授予"共和国勋章" |
|
评价& 个人观点 |
杂交水稻研究领域的开创者和带头人，被誉为"杂交水稻之父"。 个人观点（一至两个） |
要求：1. 包含所有提示内容，可以适当发挥；
2. 条理清楚，语句通顺，意思连贯，书写规范；
3. 100词左右。
提示词：agriculture农业；hybrid rice杂交水稻；共和国勋章the Medal of the Republic
Good afternoon, my dear teachers and fellow students.
Today, I'd like to tell you the story of an excellent expert, Yuan Longping.
