The Beijing News (Reporter Wu Linshu) On the afternoon of May 26, at Terminal 3 of Beijing Capital International Airport, United Airlines flight UA889 was suspected to have a fire on the right engine during the take-off phase, which led to the cancellation of the flight. In the early morning of May 27th, the Beijing News reporter learned from the passengers on duty that the crew on board were safe and the airline company arranged to take off at the same time on the 27th.

According to public information, the aircraft type of United Airlines flight UA889 on 26th was Boeing 777-222(ER) dual-channel wide-body passenger plane, with an age of 27.6 years. It flew from Beijing to San Francisco, and the actual take-off time was 17: 45.

According to a passenger sitting in the window of the right aisle of the plane, during the acceleration of the runway, he heard an abnormal sound from the outside, and then he saw a flash of fire under the right wing. Just when he felt that the nose was slightly raised and the wheel had not yet left the ground, the plane braked suddenly and stopped taking off on the runway. A number of firefighters arrived at the runway and sprayed liquid on the left and right engines of the plane. There are also many fire engines, ambulances and police cars parked near the plane. When the captain on duty made the on-board broadcast, his tone was more relaxed, informing the passengers that the engine on the right side had failed, and said, "It seems that only one engine can’t reach San Francisco."

In the early morning of May 27th, the Beijing News reporter learned from Beijing Capital International Airport that flight UA889 on the 26th has been cancelled. At present, the take-off and landing flights of the airport are normal, and the scheduled departure time of the flight on the 27th is 17: 25. Subsequently, the Beijing News reporter asked the Beijing Capital International Airport Fire Rescue Management Center, and the other party said that it was not convenient to disclose the fire-related information for the time being.

On the morning of May 27th, the Beijing News reporter learned from the customer service office of United Airlines that flight UA889 on the 26th could not take off due to "technical failure".

A maintenance engineer of a large domestic airline company who has been repairing Boeing aircraft all the year round told the Beijing News reporter that according to the video released by passengers, the initial analysis was that the right engine had a fire, but it was uncertain whether the fire had been going on all the time. "If it continues to burn, the situation will be more urgent." "Sudden braking" actually means "interrupting takeoff". According to the regulations, as long as the speed does not reach the value of decision speed V1, the takeoff can be stopped. "So there will be sudden braking, which is generally not a big problem."

According to public information, V1 speed is an aviation term, which refers to the maximum speed that a flight crew can safely interrupt takeoff and stop the aircraft within the acceleration stop distance during takeoff, also known as decision speed. This speed is comprehensively calculated by factors such as aircraft weight, runway status and environmental conditions, and is a key parameter for takeoff performance. The speed of V1 marks the critical point of interrupting takeoff and continuing takeoff. When the speed is less than or equal to V1, the pilot must take measures to ensure that the aircraft can stop in the remaining runway even if there is a single engine failure. If it exceeds V1, it is necessary to continue to take off to a safe altitude no matter what kind of fault occurs.

The above-mentioned maintenance engineer said that if the aircraft takes off and the landing gear is retracted, it may need to return. "If the fire disappears, it is basically necessary to drain the oil and lose weight before landing; If the fire continues and there is no way to drain the oil and land, the situation will be even more dangerous. " In addition, he mentioned that the engine has a service life and will be replaced when it expires. "Although this plane is old, it may be equipped with a relatively new engine. Therefore, the failure of the engine has little to do with the age of the engine. If the line is aging, or the fuselage structure is a problem, it may be related to the age of the machine. "

Editor Liu Qian proofreads Wang Xin.

　　Today, the Ministry of Education released the curriculum plan for ordinary senior high schools and 14 curriculum standards (2017 edition). The new curriculum plan and curriculum standards further strengthen the educational function of the discipline, reflect the distinct educational orientation, and obviously enhance the ideological, scientific, contemporary and holistic nature. What are the new highlights of the new curriculum plan and curriculum standards? How to strengthen the connection between the new curriculum plan and curriculum standard and the comprehensive reform of college entrance examination?

　　Multi-disciplinary increase excellent traditional culture and revolutionary traditional education content.

　　Strengthening the education of Chinese excellent traditional culture is a major focus of the revision of the curriculum plan and curriculum standards. Among them, the Chinese curriculum standard is the most prominent, and the content of Chinese excellent traditional culture runs through compulsory, selective compulsory and elective parts, with more comprehensive content, more weight and higher requirements.

　　For example, in the part of "Suggestions for reading in and out of class", in addition to retaining the original Analects of Confucius, Mencius and Zhuangzi, cultural classics such as Laozi and Historical Records have been added, requiring students to read all kinds of ancient poems extensively, covering all periods from pre-Qin to late Qing Dynasty. It is clearly stipulated that "China’s excellent ancient works should account for 1/2 of the reading items in class".

　　At the same time, the new Chinese curriculum standard also sets up a special topic for studying Chinese excellent traditional culture, and conducts in-depth study and discussion on classic works of Chinese traditional culture. The original standard "suggestions for reading articles" was changed to "recommended articles for reciting ancient poems", and the number of recommended articles increased from 14 (the first) to 72 (the first), which improved the learning requirements.

　　In addition, the curriculum standards of fine arts, music, physical education and health, mathematics, etc. have increased the content of traditional culture education. For example, "China Painting and Calligraphy" is added to the fine arts curriculum standard, which involves the appreciation of China’s traditional paintings, calligraphy, seal cutting and other classic works and traditional painting theory, so as to promote students to stick to China’s cultural stance and enhance their cultural self-confidence.

　　Strengthening revolutionary traditional education is another major focus of this curriculum revision. The new curriculum standard of Chinese combines comprehensive strengthening with special study in revolutionary traditional education. While the content requirements of revolutionary traditional education run through compulsory, selective compulsory and elective parts, it also sets up a special topic of "revolutionary traditional works" to concentrate on study and discussion.

　　The new curriculum standard of Chinese combines extensive reading with intensive reading, requiring students to widely read the famous poems of revolutionary ancestors, excellent papers and essays explaining revolutionary spirit, news, newsletters, speeches and comments on revolutionary traditions in and out of class. The recommended reading items in and out of class involve Mao Zedong’s poems, and a group of writers such as Lu Xun, Guo Moruo, Mao Dun, Ba Jin, Ai Qing, Cang Kejia, He Jingzhi, Guo Xiaochuan and Zhou Libo reflect revolutionary traditions.

　　In addition, the history curriculum standard clearly requires students to systematically study the course of new-democratic revolution, socialist revolution, construction and reform and opening up, and "know and carry forward the national spirit with patriotism as the core and the spirit of the times with reform and innovation as the core". The theme activity of "Veteran’s Story" was added to let students feel the thoughts and actions of ordinary people in the historical background and appreciate the lofty spiritual realm of revolutionary soldiers.

　　Provide selective courses for students with different development directions.

　　Around 2012, there was a discussion about the functional orientation of ordinary senior high schools in China. At that time, there was a view that senior high schools were preparatory education for university entrance. Wang Zhan, chairman of the Expert Working Committee on Basic Education Curriculum and Textbooks of the Ministry of Education, still remembers the discussion vividly.

　　Wang Zhan said: "In view of the long-standing tendency of one-sided pursuit of enrollment rate, the newly revised curriculum program emphasizes that ordinary high school education is not only to prepare for college, but also to prepare students for social life and career development, and to lay the foundation for students’ lifelong development."

　　"The curriculum plan can’t follow the exam, but follow the education." Wang Zhan said. The new curriculum scheme further optimizes the curriculum structure. Considering the diverse learning needs of senior high school students and the requirements of entrance examination, under the premise of ensuring the common foundation, the course selectivity is appropriately increased to provide selective courses for students with different development directions.

　　Such changes include: first, retaining the original study subjects and adding German, French and Spanish on the basis of English, Japanese and Russian; The second is to adjust the course categories to compulsory courses, selective compulsory courses and elective courses.

　　"Compulsory courses are fully tested, and selective compulsory courses are optional. Elective courses, students can choose to study independently, and they can study without taking the exam or preparing for the exam, which provides reference for students’ employment and independent enrollment in colleges and universities. " Wang Zhan said.

　　The reporter learned that the relationship between the new curriculum and university majors, real life and vocational education has increased significantly. For example, five types of elective courses have been designed to meet the needs of students in science, engineering, economics, humanities and art; The course content of general technology "technology and occupation" has also broken the barrier between general education and vocational education.

　　"In the past, it was guided by knowledge point learning, and now it is to condense the core literacy of the discipline." Wang Zhan said. In addition, the new curriculum plan and curriculum standards condensed the core literacy of the discipline for the first time, and around the implementation of the core literacy of the discipline, selected and reorganized the teaching content, designed the teaching activities, and put forward suggestions for examination and evaluation.

　　For example, Wang Zhan said: "For example, the core literacy of history discipline is’ historical materialism, time and space concept, historical evidence, historical interpretation, and feelings for home and country’, which emphasizes that through learning, students can form correct historical values and establish a high sense of identity, belonging, responsibility, mission and pursuit of national prosperity and people’s happiness."

　　Seamless connection with the comprehensive reform of college entrance examination

　　At present, the country is vigorously promoting the comprehensive reform of the college entrance examination. How do the new curriculum plans and standards strengthen the connection with the comprehensive reform of the college entrance examination? Zheng Fuzhi, Assistant Minister of Education and Director of Teaching Materials Bureau, said that for talent training, curriculum plan and curriculum standards are the basic basis, and examination enrollment is an important orientation. It is necessary to organically combine the curriculum reform with the comprehensive reform of college entrance examination, make overall plans and make effective linkages to form a joint force.

　　The new senior high school curriculum plan and curriculum standards are organically combined with the comprehensive reform of the college entrance examination in terms of the relationship between teaching and examination, examination propositions and curriculum implementation. It is understood that this revision work is jointly revised by curriculum experts and examination evaluation experts to ensure the connection between the two.

　　Zheng Fuzhi said that in order to coordinate the curriculum reform of senior high school with the comprehensive reform of college entrance examination, on the one hand, we should give full play to the leading role of curriculum in talent training and selection, especially strengthen the correlation between examination content and senior high school curriculum to ensure the consistency of teaching, examination and evaluation; On the other hand, we should give full play to the correct guiding role of college entrance examination reform in senior high school curriculum reform, such as promoting the use of comprehensive quality evaluation in college enrollment and urging senior high school education to pay more attention to the cultivation of students’ comprehensive quality.

　　As a highlight of the revision of the curriculum plan and curriculum standards, the "academic quality" section has been added to each subject, which clarifies the grade level of the core literacy of the subject after students complete the learning content of the subject and puts forward the academic quality standard. Wang Zhan said: "The academic quality standard divides the academic quality into different levels, which helps teachers to better grasp the teaching requirements, teach students in accordance with their aptitude, and pay more attention to the effective implementation of educational goals. At the same time, the proposal of academic quality requirements also provides an important basis for phased evaluation, academic proficiency test and entrance examination proposition, promotes the organic connection of teaching, learning and examination, and forms a joint force for educating people. "

　　At the same time, the subject content of each subject’s curriculum standard is composed of "content requirements", "teaching tips" and "academic requirements", and the evaluation objectives are refined according to the requirements of academic quality. Most subjects also increase teaching and evaluation cases, strengthen the specific guidance on textbook compilation, teaching implementation and examination evaluation, help teachers accurately understand and grasp the essence of curriculum standards, and enhance guidance and operability. (Reporter Liu Bozhi)

　　CCTV News:The Central Meteorological Observatory continued to issue a high-temperature orange warning at 06: 00 on June 24. It is estimated that there will be high-temperature weather above 35 C in North China, Huanghuai and other places during the day on June 24, among which the highest temperature in Beijing, Tianjin, Hebei, north-central Shandong and northern Henan is 37 ~ 39 C, and some areas in Beijing, Tianjin, central Hebei and northern Shandong can reach about 40 C; In addition, Turpan and southern Xinjiang basin in Xinjiang, western and central Inner Mongolia and other places also have high temperature of 35~38℃, and the local maximum temperature can reach about 40℃.

　　Defense guide:

　　1, the relevant departments and units in accordance with the responsibilities of the implementation of heatstroke prevention and cooling measures;

　　2. Try to avoid outdoor activities at high temperature, and the personnel working at high temperature should shorten the continuous working hours;

　　3. Provide heatstroke prevention and cooling guidance to the old, weak, sick and young people, and take necessary protective measures;

　　4, the relevant departments and units should pay attention to prevent fires caused by excessive electricity consumption, as well as wires, transformers and other power loads.

In the running domestic waste sorting collection point, citizens can automatically open the door without touching it.

Small garbage leads people’s livelihood and is connected with civilization. According to statistics, the per capita output of domestic garbage is about 0.8-1.2 kg per person per day. In 2022, the national urban domestic waste removal capacity reached 244 million tons, and the harmless treatment rate reached 99.9%. As a city with a population of over 20 million, Chengdu has been "competing" with garbage.

It is clearly stated in the Action Plan for Deepening Domestic Waste Classification in Chengdu for Three Years (2023-2025) that by the end of 2023, the whole process of harmful waste and recyclable materials will be classified in the whole city, and the party and government organs and institutions will fully implement compulsory classification, and 14 pilot demonstration towns (streets) will take the lead in building a household kitchen waste collection and transportation system; In 2024, 60% of the towns (streets) in the city will realize compulsory classification of domestic garbage; In 2025, the whole region will achieve full coverage of mandatory classification of domestic waste.

How to mobilize more residents’ enthusiasm and participate in garbage sorting? How to make it easier for residents to sort garbage and make the garbage stations in the city more "smart"? Chengdu Business Daily-Red Star journalist recently conducted a survey on this.

one

The garbage sorting and cleaning house is built in the community.

"The purity of kitchen waste in residential area reaches over 80%"

On November 6th, at the entrance of Ruyirenjia Community in the south third section of Chengdu Second Ring Road, the garbage sorting clean house was officially put into operation. This is also the first garbage sorting and cleaning house built in a residential area in the city. The cleaning house is equipped with mosquito killer, deodorizing equipment, air conditioning, garbage sorting barrels, etc. Each sorting trash can uses the method of changing barrels to transfer garbage.

Ruyi Renjia Community is an old community with more than 300 households and more than 1,000 people. The clean house should undertake the garbage sorting and temporary storage functions of the whole community. In the past, kitchen waste in residential areas was mixed with other garbage, but now, the purity of kitchen waste in residential areas is over 80%. Chen Meixu, a staff member of Bauhinia Community in Fangcao Street, Chengdu High-tech Zone, revealed the reason, "more publicity and more guidance". Since March this year, community micro-grid members, property management organizations and autonomous organizations have begun to publicize garbage classification.

The reporter saw that in the home of 81-year-old resident Wang Guiqing, a number of classified garbage bins were specially prepared. "We didn’t pay attention to garbage sorting in the past few decades, and now it can be said to be a’ revolution’. Through garbage classification, different kinds of garbage can be used in different degrees, and the pollution is less. Fruit peels and vegetable leaves are thrown into the green bucket, and waste paper and milk boxes are put into the recyclable trash can. " Wang Guiqing’s home is on the first floor. She said that in the past, the door of life balcony was afraid to open. "In summer, flies and mosquitoes fly around, and after the garbage is sorted and treated in time, the environment has become better."

According to reports, in addition to publicity, the community also guides garbage classification through appropriate rewards-the supervisor issues a "garbage classification passbook" to the residents before cleaning the house. As long as the garbage is correctly classified, it can be stamped with points, and finally according to the number of seals. In exchange for small gifts.

2

Building an integrated center for garbage classification

It’s not only classified garbage disposal, but also a popular science base.

How to mobilize the enthusiasm of more residents and let them accept garbage sorting? "Many residents have concerns. They are worried that if they divide the garbage at home, they will eventually use a unified vehicle for transshipment. Our approach is to eliminate residents’ concerns. " Chen meixu said.

Fangcao Vein Home is the garbage classification and integration center of Fangcao Street in Chengdu High-tech Zone, where kitchen waste, other garbage, harmful waste, recyclables and large pieces of garbage will be "gathered". According to reports, kitchen waste is directly disposed of, while other wastes, harmful waste, recyclables and bulky wastes are temporarily stored, and then transported to other places for disposal. Different garbage has different transport vehicles, and the body will be marked with "special transport vehicle for kitchen waste" and "special transport vehicle for other garbage".

"From the perspective of classification, the amount of harmful waste in cities is very small, and the amount of kitchen waste is large." Fu Jiang, the person in charge of Chengdu Gaojian Environmental Sanitation (Fangcao Vein Home), revealed that the collected kitchen waste, organic dry residue and crude oil formed after treatment can be reused. After each ton of kitchen waste is treated, about 30 kilograms of crude oil can be obtained for making biodiesel, about 65 kilograms of protein feed and about 150 kilograms of insect manure organic fertilizer.

According to reports, in Fangcao Vein Home, the purity of kitchen waste collected has gradually increased from 70% to 90%, which has also improved the disposal efficiency and capacity within the jurisdiction.

This "journey" belonging to domestic garbage is gradually being known by more people. In addition to garbage disposal, it is also a popular science base with a special garbage classification science museum. "This is not just a garbage disposal station, we also want to become a garbage propaganda station. We take the initiative to invite the public to visit, so that more people can understand the garbage classification and participate. " Fu Jiang said.

three

Put into use intelligent garbage station

Residents can see the "life cycle" of garbage at a glance.

In addition to day-to-day publicity, residents should be willing to sort garbage, and they should try their best to understand that garbage sorting is not a hassle, so garbage stations in cities should be smarter and smarter.

Yuyuan Community, located in Hongyun Street, Wuhou District, Chengdu, is a 28-year-old community. There are 420 households and more than 800 people living here, of which over 70% are elderly. Recently, three new domestic waste sorting collection points have been added in the community, which have many intelligent functions such as automatic sensing, camera capture, garbage traceability treatment and so on.

Huang Meiying, 83, has lived in Yuyuan Community for more than 20 years. In the past, trash cans were distributed under every unit, and it was easy to produce unpleasant odor in summer. Now, residents only need to get close to the domestic waste sorting point, and the corresponding garbage door will slowly open, and the TV on the side will also track the follow-up garbage disposal.

"This set of equipment is to make it easy for ordinary people to put garbage in an intelligent way and prevent residents from reaching out. The TV screen on the side will also monitor the’ full life cycle’ of domestic garbage in real time, the disposal route of domestic garbage, and whether the garbage in the community has been reduced, which can be seen clearly. " Li Hanrong, Party Secretary of Jifu Community, explained this.

Garbage sorting can be roughly divided into four processes: investment, collection, transportation and disposal. The first two processes require residents’ high participation and cooperation. "In the link of classified delivery, we rely on the guidance of party building and micro-grid, and take the building as the unit to make the publicity in place. In the process of classified collection, we have established a team of unified supervisors to guide the garbage throwing process and establish corresponding incentive mechanisms. " Li Hanrong introduced that the vote was good and there was a gift reward. For a long time, after being recorded by the on-site camera, supervisors, property managers and others will give guidance and advice one by one.

Li Hanrong said that the purpose of this is to let more residents understand every step of garbage disposal.

In addition to more "smart" garbage sorting stations, a social garbage recycling company has been introduced in Yuyuan Community to provide paid garbage recycling services to residents. 75-year-old Tang Wanqiong is putting her bad shoes in the smart recycling bin. Through this delivery, she gained 2.13 yuan. Clothes, cartons, plastic bottles, toys, etc. are all paid recycling scope of intelligent recycling boxes, and residents in the community can exchange money in the community. According to reports, smart recycling equipment like this is currently being piloted in several communities to provide residents with convenient classified delivery conditions.

four

Let more residents participate in garbage sorting.

In-depth promotion of domestic waste classification for three years

Since 2000, China has carried out pilot waste sorting in eight cities including Shanghai. At present, from the national perspective, 46 key cities have all issued domestic waste classification laws and government regulations.

Huang Meiying, a resident of Yuyuan Community, is from Shanghai, and her younger brother lives in Shanghai. Huang Meiying’s younger brother also told her some experiences of garbage sorting in Shanghai. "In Shanghai, every household has a small bucket, which is specially used to store kitchen waste, and directly dumps it into the corresponding garbage sorting bucket. This advantage is to avoid the problem of’ broken bags’ of kitchen waste in plastic bags. " In Yuyuan Community, where Huang Meiying lives, residents who have done a good job in garbage sorting will send gifts, including sorting trash cans, which are convenient for holding kitchen waste.

On November 3rd, Chengdu Classification Office also organized a TV and telephone training meeting for Chengdu’s domestic waste classification business, and invited Dr. Song Wei, a professor-level senior engineer from China Urban Planning and Design Institute, to give a lecture to "recharge" the backbone of the domestic waste classification business in Chengdu. Song Wei suggested that garbage sorting should be done well through policies and regulations, management system, supervision and assessment, publicity and education, organization and mobilization.

Chengdu also puts forward new requirements for garbage sorting. In the "Three-year Action Plan for Deepening Domestic Waste Classification in Chengdu (2023-2025)" issued by the Municipal Classification Office, it is clear that by the end of 2023, the whole process of harmful waste and recyclable materials will be classified in the whole city, and the party and government organs and institutions will fully implement compulsory classification, and 14 pilot demonstration towns (streets) will be established. In 2024, 60% of the towns (streets) in the city will realize compulsory classification of domestic garbage; In 2025, the whole region will achieve full coverage of mandatory classification of domestic waste.

According to the relevant person in charge of the Municipal Classification Office, in view of the obvious shortcomings such as "grassroots organization construction and community governance, organization mobilization and publicity and education, classified delivery, collection, transportation and disposal" in Chengdu, and the fact that many points were lost in the evaluation of the Ministry of Housing and Urban-Rural Development, we will vigorously carry out actions such as "grassroots governance and publicity, classified delivery, classified collection and transportation, and classified disposal" to speed up the construction and improvement of the full-cycle classification system. In addition, we should grasp the three key points of "harmful waste’s whole-process classification, standardized collection and transportation of kitchen waste, and convenient collection and transportation of large-sized waste" to improve citizens’ sense of happiness and acquisition with "small incision and small investment".

Chengdu Business Daily-Red Star Journalist Yan Xue’s Photo Report