“勇闯51区”——“地球人”的小欢聚

Events involving thousands of Earthlings answering an internet buzz about an invitation to “Storm Area 51” in the Nevada desert have been mostly festive. After a weekend of camping and partying, the Earthlings from around the globe headed home in peace.数千名“地球人”响应网络的号召,来到内华达州的沙漠地带参与“勇闯51区”的活动。历经一个周末的野营和派对后,参与者们平静地启程离开,在欢乐中宣告活动的收尾。Visitors hailed from France, Russia, Germany, Peru, Sweden, Australia and many U.S. states — in answer to the Internet post “Storm Area 51” in June suggesting that if enough people rushed a military base to "see them aliens" at 3 a.m. Sept. 20, authorities couldn't stop everyone. More than 2 million netizens clicked their interest, but in the end only a few thousand made the trip to the tiny Nevada desert city of Rachel, population about 50, a more than two-hour drive north of Las Vegas.专门为此次“行动”而来的游客来自世界各地,包括法国、俄罗斯、德国、秘鲁、瑞典、澳大利亚等等,当然还有美国多个州的爱好者——他们均是为了响应今年6月网上发起的“勇闯51区”的活动倡议,相约在9月20日凌晨3点在此处相约“外星人”;大家想当然地以为只要有够多的爱好者冲进该军事基地参与活动,军方便不会阻止。虽然超过200万的网民点击了“感兴趣”,但最终到场的只有数千人。据悉,要来到“据点”,参与者需要从拉斯维加斯驾车两个多小时,来到人口仅有50的雷切尔小镇。Did anyone find actual extraterrestrials or UFOs? Well, if you exclude the masked and costumed beings posing for photos and cavorting in the desert, then the answer is no. However, the participants felt a great sense of community. It started as a joke and turned out to be a joyous gathering to know each other.那么究竟有没有人看到“天外来客”或者“UFO”呢?要是你排除了现场那些游来荡去、精心打扮成外星人的爱好者,那么这个答案很显然是否定的。但是,对于参与者来说,这项活动本身就是一场外星人爱好者们欢聚的盛会。倡议提出之时便不是正儿八经的“勇闯”,而是参与者们彼此认识,沟通了解的绝佳机会。What on Earth is "Area 51"?那么,究竟什么是“51区”?For decades, Nevada's Area 51 Air Force facility has represented the eye of a conspiratorial hurricane that swirls around "evidence" that aliens exist and are hiding behind its walls. Books, TV shows, and films have tried to glimpse beyond its stark signs warning against trespassers.几十年来,内华达州的这座“51区”空军基地一直是被认为是研究“外星人”的秘密基地。大量的书籍、电视节目、电影等纷纷将关注的焦点投向它,试图透过其高高的围墙一探内部的究竟。What exactly goes on inside of Area 51 has led to decades of wild speculation. There are, of course, the alien conspiracies that galactic visitors are tucked away somewhere inside. There are plenty of rumors. Some even believe that the U.S. government filmed the 1969 moon landing in one of the base's hangars.“51区”内部究竟酝酿着什么,一直以来都引发着各种猜想。最引人注意的莫过于“外星人”一说,认为基地里藏有天外来客。谣言种种,难以求证。有些人甚至认为1969年美国登月实际上是在该区内部的某个摄影棚内拍摄完成的。For all the myths and legends, what's true is that Area 51 is real and still very active. There may not be aliens or a moon landing movie set inside those fences, but something is going on and only a select few are privy to what's happening further down that closely-monitored wind-swept Nevada road.在有关“51区”重重的神话和传闻之下,能够确定的是,它是真实存在的,且仍在活跃运行。在隔离区内或许没有外星人或者“假登月”的摄影棚,但是在这所荒凉地带的隔离区里,只有极少一部分人有权限能够进入,从事鲜为人知的工作。While the lore around Area 51 may be nothing more than imaginative fiction, that won't stop people from gawking just beyond those chain link fences. As aerospace historian Peter Merlin puts it, “at the most basic level, anytime you have something secret or forbidden, it's human nature, and you want to find out what it is.”尽管有关“51区”的传闻如幻想小说般不大可信,但依然阻止不了人们好奇的目光。就如航天历史学家彼得·梅林所说,“从根本上来看,只要是秘而不宣的事情,总是能自然而然地引起人们极大的好奇心,这其实是人性的一部分。”VOCABULARYEarthling: n. 地球人(常用于科幻小说中)extraterrestrial: n. 外星人;星外来客galactic: adj. 星系的lore: n. 传说;传闻

贺信的写作

“时维九月,序属三秋,喜闻贵校20xx年高考硕果累累。在刚刚落下帷幕的全日制本科招生工作中,贵校有xx名优秀学子成功考取我校,这是我校的宝贵财富。在此,祝贺贵校在育人方面再结硕果,也祝愿学子们在新的校园内开启人生新的篇章……”高考落幕,金秋已至,便到了各所中学收获高校贺信的“幸福时刻”了。学校自豪地将贺信张贴在校园的醒目位置,不仅对外彰显取得的丰硕成果,也是对在读学生们一种无形的激励。如此看来,贺信貌似与普通人关系不大——通常只有官方才发布“贺信”,与我们又有何干?其实不然,贺信在日常工作中的应用十分广泛。踏足工作岗位之后,不少人都会发现贺信可用来祝贺重大会议的成功召开、个人在工作上的突出成就、某个工程项目的顺利实施等等。很多领导都相当重视下属的公文书信写作能力,贺信便是其中不可或缺的一部分。掌握贺信写作的基本要领,对于刚刚步入职场的新人们来说,是大有裨益的。另一方面,我们也不难想到,贺信与其它应用文相比,在内容上和形式上都有着诸多的不同。内容上,除了要把祝贺的事件讲清楚,还需要讲得振奋人心,让人感受到“贺”的氛围;形式上,用于张贴的贺信,常常要制作成海报的形式,辅以精美的编排,使人眼前一亮,印象深刻。由此看来,写好一“张”贺信,需要学习的地方其实还不少。今天我们的微课,就将聚焦这一独特的应用文体,敬请观看Letter of Congratulations。

探索“万物互联”的世界

郭逸纯 供稿Have you dreamed of having a smart home? Once you walk into your living room, the room identifies you and prepares everything from air conditioning to lightening for you according to a cloud-based profile of your preferences. Have a tiring day at work? The room knows it, and starts to play some soothing classical music to help you get relaxed. When you walk to the refrigerator, it not only tells you what are in it, but also tells you what's the perfect meal you can make with the stuff that you already have based on your mood and maybe even you weight loss plan.你是否幻想过拥有一个智能之家呢?你刚踏进家门,客厅便感知到你的归来,从空调到灯光,它立马根据你的云端偏好记录为你奉上一切。工作了一天身心疲惫?你的房间懂你——舒缓的古典音乐开始缓缓播放,帮你放松身心。当你向冰箱走去,它不仅告诉你有哪些食材,还能根据你的心情,甚至是你的减肥计划,告诉你这些食材能做出一份怎样的美味大餐。Maybe you have only read such things in science fictions, but they're now either already possible or on the brink of coming into being. Smart homes filled with connected products are loaded with possibilities to make our life easier, more convenient, and more comfortable. And all of these are based on what is called the Internet of Things.这种种场景也许你仅在科幻小说里领略过,但如今,其中有些“幻想”已经成为现实,有些也即将如愿以偿。许多互联智能家居产品为我们带来无限可能,让我们的生活更加简单、便利又舒适。而这一切都是建立在物联网技术的基础之上。The Internet of Things (IoT) is becoming an increasingly hot topic all around the world. It's a concept that has the potential to affect not only how we live but also how we work. But what exactly is IoT and what impact is it going to have on us?物联网正成为全球日益热门的一大话题,这一概念不仅有望影响我们的生活方式,也将改变我们的工作模式。那么,物联网究竟是何物?它又将给我们带来怎样的影响呢?Simply put, the IoT is a giant network of connected "things" (which also includes people). It's estimated that there will be 50 billion objects connected to the Internet by the year 2020. That means on average, each person will have six objects connected to the Internet. We are talking about a world blanketed with billions of sensors which can acquire real-time information from the physical objects in the real world and upload it to the Internet.简单来说,物联网就是一个将万物互联的巨大网络(这里的“物”也包括人)。截至2020年,预计将有500亿终端连网,也就是说,平均每人就可能拥有六件联网设备。那将是一个被无数传感器覆盖的世界,这些传感器能够从真实世界获取各个设备的实时数据,并上传至互联网。IoT can not only benefit our daily life, but also improve efficiency, productivity, and safety within the workplace. For example, if a machine in a factory goes down, connected sensors can immediately determine where the problem is occurring and trigger a repair request to an engineer. The IoT can also predict when a machine's life cycle is about to end, which takes a preventive maintenance approach to the next level by saving facility owners thousands of dollars on unwarranted repairs or replacements.物联网不仅能改善我们的日常生活,还能提高工作中的效率、生产力和安全性。比如,一家工厂中的某台机器出现故障,连网传感器能够立即识别出问题所在,并向工程师发送维修请求。物联网还能预测机器的使用寿命,以便帮助设备主人避免花费大量金钱进行不必要的维修或零件更换,从而将预防性检修水平提高到新的高度。On a broader scale, the IoT can also pave the way for a future of smart cities and affect almost everything in cities from lighting, parking, traffic and waste management to citizen engagement, safety and security. For example, sensors in city infrastructure can collect and exchange traffic data, and thus reduce road congestion and even avoid traffic accidents.从更广的层面来说,物联网还可以助力实现智慧城市,从照明、停车、交通、垃圾管理到市民参与、安全与防护,影响城市的方方面面。譬如,城市基础设施中安装的传感器可以收集并实现交通数据的交互,从而缓解道路拥挤,甚至避免交通事故。The IoT certainly opens the door to numerous opportunities but also to many challenges. Security is a big issue that is usually brought up. With billions of devices being connected together, what can people do to make sure that their information stays secure? Will someone be able to hack into your coffee maker and thereby get access to your entire network? Another issue that many companies are concerned about is how to deal with the massive amounts of data that all of these connected devices are going to produce. They have a long way to go to figure out a way to store, track, analyze and make good use of the vast amounts of data that will be generated.毋庸置疑,物联网打开了无数机会之门,但也带来了诸多挑战。安全问题就是人们常常提及的一个大问题。当成千上万的设备互联互通,人们如何确保自己的信息安全?会不会有人通过侵入你的咖啡机,进而侵入你的整个网络?令许多企业担忧的另一个问题是,如何处理这些互联设备产生的海量数据?要想出办法储存、追踪、分析这些数据并予以妥善应用,依然任重而道远。VOCABULARYon the brink of 濒临;临近blanket v. 覆盖preventive maintenance预防性维修,定期检修pave the way for 为……铺平道路hack into 非法侵入(计算机系统)

练习 | VOA慢速:智能手机数据或将拯救母亲和孩子生命

VOA慢速:智能手机数据或将拯救母亲和孩子生命燕山大学 刘立军 编写 TRANSCRIPTA new project in India and Uganda is aimed at helping health workers save the lives of mothers and babies with information from electronic devices.The $100 million project is funded by the Rockefeller Foundation, the World Health Organization, UNICEF, the World Bank and other groups. Officials plan to extend the project to a total of 10 countries. The goal is to prevent the premature deaths of 6 million women and children by 2030.Raj Shah is president of the Rockefeller Foundation, which leads the project. The group is providing $60 million of the $100 million total cost. Shah said the plan is to give health workers low-cost tools to help them gather the information they need to help communities and families most at risk.The project will provide tools such as real-time risk maps to help health workers reach mothers and children. Workers also will be able to study non-health data on climate or social media patterns to predict and prepare for local disease outbreaks or health emergencies.Shah told Reuters, "A few years ago, these community health workers had no real technology, today the vast majority of them have smartphones with data and software technologies in their hands - and with those, we can help them do their work better."A U.N. report published last week stated that more women and newborn babies survive now than ever before. But, the report said that a baby or a pregnant woman still dies every 11 seconds somewhere in the world.Deaths of mothers are nearly 50 times higher for women in sub-Saharan Africa than in wealthy countries. The report also found that babies in Sub-Saharan Africa are 10 times more likely to die in their first month of life.I'm Jonathan Evans.Adapted from http://www.kekenet.com/broadcast/201909/595691.shtml VOCABULARY1. premature adj. (of a birth or a baby 生产或婴儿) happening or being born before the normal length of pregnancy has been completed 早产的。例如:The baby was four weeks premature. 这个婴儿早产了四周。2. outbreak n. the sudden start of sth. unpleasant, especially violence or a disease (暴力、疾病等坏事的)爆发,突然发生。例如: the outbreak of war战争的爆发 an outbreak of typhoid伤寒的爆发 Outbreaks of rain are expected in the afternoon. 下午将有暴雨。 QUESTIONSRead the following statements and decide whether they are true or false.( ) 1. The $100 million project is funded by the Rockefeller Foundation exclusively.( ) 2. The goal is to prevent the premature deaths of 16 million women and children by 2030.( ) 3. Shah said the plan is to give health workers advanced tools to help them gather the information they need to help communities and families most at risk.( ) 4. The project will provide tools such as real-time risk maps to help health workers reach mothers and children.( ) 5. Workers also will be able to study non-health data on climate or social media patterns to predict and prepare for local disease outbreaks or health emergencies.( ) 6. A U.N. report published last month stated that more women and newborn babies survive now than ever before.( ) 7. The report showed that a baby or a pregnant woman still dies every 11 seconds somewhere in Africa.( ) 8. Deaths of mothers are nearly 50 times higher for women in sub-Saharan Africa than in America.( ) 9. The report also found that babies in Sub-Saharan Africa are 10 times more likely to die in their first month of life. KEYRead the following statements and decide whether they are true or false.(F) 1. The $100 million project is funded by the Rockefeller Foundation exclusively. (正确表达) The $100 million project is funded by the Rockefeller Foundation, the World Health Organization, UNICEF, the World Bank and other groups.(F) 2. The goal is to prevent the premature deaths of 16 million women and children by 2030. (正确表达) The goal is to prevent the premature deaths of 6 million women and children by 2030.(F) 3. Shah said the plan is to give health workers advanced tools to help them gather the information they need to help communities and families most at risk. (正确表达) Shah said the plan is to give health workers low-cost tools to help them gather the information they need to help communities and families most at risk.(T) 4. The project will provide tools such as real-time risk maps to help health workers reach mothers and children.(T) 5. Workers also will be able to study non-health data on climate or social media patterns to predict and prepare for local disease outbreaks or health emergencies.(F) 6. A U.N. report published last month stated that more women and newborn babies survive now than ever before. (正确表达) A U.N. report published last week stated that more women and newborn babies survive now than ever before.(F) 7. The report showed that a baby or a pregnant woman still dies every 11 seconds somewhere in Africa. (正确表达) The report showed that a baby or a pregnant woman still dies every 11 seconds somewhere in the world.(F) 8. Deaths of mothers are nearly 50 times higher for women in sub-Saharan Africa than in America. (正确表达) Deaths of mothers are nearly 50 times higher for women in sub-Saharan Africa than in wealthy countries.(T) 9. The report also found that babies in Sub-Saharan Africa are 10 times more likely to die in their first month of life.

练习 | VOA慢速:吃巧克力能改善视力吗

VOA慢速:吃巧克力能改善视力吗燕山大学 刘立军 编写 TRANSCRIPTResearchers have sad news for chocolate lovers. They found that eating dark chocolate does not improve people's eyesight as had been thought.An earlier report suggested that some aspects of eyesight improved within one or two hours of eating chocolate. The new study found no changes in vision or blood flow after volunteers ate about 20 grams of dark chocolate. Both studies, however, involved only a small number of test subjects.With two similar-sized tests producing opposite results, "more research is needed," said the organizers of the latest study. The lead researcher was Jacob Siedlecki of Ludwig-Maximilians-University in Munich, Germany.Additional testing with larger sample sizes would be needed to rule in or out possible long-term benefits," the researchers wrote. Their report appears in the medical publication JAMA Ophthalmology.The reason for suspecting dark chocolate might help with vision is that the sweet treat has plenty of flavonoids, which are antioxidants.Antioxidants are man-made or natural substances that may prevent or delay some forms of cell damage. Studies have shown that foods with high levels of antioxidants can reduce the risk of an age-related vision problem called macular degeneration.To see if the earlier study on chocolate could be repeated, Siedlecki and his team found 22 healthy volunteers, ages 20 to 62, who had good eyesight.The volunteers were asked to eat either a 20-gram piece of dark chocolate or a 7.5-gram piece of milk chocolate. The piece of dark chocolate contained 400 milligrams of flavanoids, while the milk chocolate had about 5 milligrams of flavanoids.Volunteers' eyes were examined with a relatively new, high-tech scanner that shows blood vessels in detail. The volunteers were tested before they ate the chocolate and again two hours later.Siedlecki's team was looking for signs that the chocolate had enlarged blood vessels in the eye. This means volunteers were getting better blood flow.Volunteers were also given low-technology vision tests similar to the ones used in the earlier chocolate study.A week after the test, the people who got dark chocolate the first time were given milk chocolate, and those who had milk chocolate the first time were given dark chocolate.The researchers said they found no difference in either test when volunteers ate dark chocolate or milk chocolate.Doctor Gareth Lema was a little sad to read the latest findings. "I like chocolate," he explained.While the new study failed to show any health benefit to eating a single piece of chocolate, "that doesn't mean eating it over the long term isn't beneficial," said Lema. He works at the New York Eye and Ear Infirmary of Mount Sinai in New York City."Neither study really showed that if you eat a piece of chocolate, you'll have (great) vision," Lema added.Doctor Jay Chhablani agreed."Someone has to do a long-term study comparing dark chocolate to milk chocolate," he said. Chhablani is an associate professor of ophthalmology at the University of Pittsburgh School of Medicine.Both men know it will be easy to find volunteers.I'm Susan Shand.Adapted from http://www.kekenet.com/broadcast/201910/596151.shtml VOCABULARY1. ophthalmology n. (不可数名词) the scientific study of the eye and its diseases 眼科学2. flavonoids n. (医)黄酮类3. antioxidant n. (biology 生) a substance such as vitamin C or E that removes dangerous molecules , etc., such as free radicals from the body 抗氧化物质(如维生素C或E,可消除体内自由基等有害分子)4. macular adj. 有斑点的 QUESTIONSRead the following statements and decide whether they are true or false. 1. Researchers found that eating dark chocolate does not improve people's eyesight as had been thought. 2. An earlier report suggested that some aspects of eyesight improved within one or two hours of eating chocolate. 3. Both study involved only a small number of test subjects. 4. The reason for suspecting dark chocolate might help with vision is that the sweet treat has plenty of flavonoids, which are antioxidants. 5. Antioxidants are man-made or natural substances that may prevent or delay some forms of cell damage. 6. Studies haven’t shown that foods with high levels of antioxidants can reduce the risk of an age-related vision problem called macular degeneration. 7. The researchers said they found some difference in both tests when volunteers ate dark chocolate or milk chocolate. KEYRead the following statements and decide whether they are true or false.T 1. Researchers found that eating dark chocolate does not improve people's eyesight as had been thought.T 2. An earlier report suggested that some aspects of eyesight improved within one or two hours of eating chocolate.F 3. Neither study involved only a small number of test subjects. (正确表达) Both studies involved only a small number of test subjects.T 4. The reason for suspecting dark chocolate might help with vision is that the sweet treat has plenty of flavonoids, which are antioxidants.T 5. Antioxidants are man-made or natural substances that may prevent or delay some forms of cell damage.F 6. Studies haven’t shown that foods with high levels of antioxidants can reduce the risk of an age-related vision problem called macular degeneration. (正确表达) Studies have shown that foods with high levels of antioxidants can reduce the risk of an age-related vision problem called macular degeneration.F 7. The researchers said they found some difference in both tests when volunteers ate dark chocolate or milk chocolate. (正确表达) The researchers said they found no difference in either test when volunteers ate dark chocolate or milk chocolate.

练习 | VOA慢速:4种保存食物的方法

VOA慢速:4种保存食物的方法燕山大学 刘立军 编写 TRANSCRIPTWhen you preserve food, you are taking action to stop it from breaking down, as it does naturally. You are killing or preventing the growth of microorganisms.Today, we will explore how you can preserve some of the fresh produce you buy or grow. By following a few easy steps, you can still eat those tasty fruits and vegetables when they are out of season.You can preserve late-summer fruits and vegetables in four basic ways. These include freezing, canning, pickling and drying or dehydrating. FreezingFreezing is the simplest way to save produce. It is important to freeze the produce as quickly as possible, and to do so in freeze-grade bags or other containers. Eugenia Bone has written books about food and nature. She notes that you should cool down food before you freeze it. One problem to avoid is freezer burn, which can affect the taste and feel of food. To prevent this, use plastic bags, wraps or containers designed for the freezer.Good late-summer produce to freeze includes green beans, cabbage, apples and plums. CanningThere are two main ways to can produce: boiling hot water baths and pressure canning. A boiling water bath involves putting food in glass canning jars and then heating the jars in a pot of boiling water. The heat forces air from the glass jars and frees the food from bacteria and microorganisms. You can then seal the jars. This method works best with naturally acidic foods like fruits. Pressure canning food requires a pressure canner. The pressure canner you use should be based on the kind of cooking equipment you have and the amount of food you plan to can. Whichever method you use, always test the seal that keeps out fresh air.Good late-summer fruits for water bath canning include apples, berries, cherries, figs and peaches. Good foods for pressure canning include carrots, corn, okra and bell peppers. PicklingThere are many methods of preserving food in vinegar, salt brine or a similar mixture. You can pickle whole vegetables, like green beans or okra. Another possibility is to make chutney or relishes. This is done by adding salt, pepper or other seasonings to small, cut pieces of vegetables.Good late-summer foods to pickle include cucumbers, hot chili peppers, watermelon rinds and eggplants. DryingA final way to preserve food is by drying it. Whatever food you are drying should be just ready to eat and not have bruises. When drying, try to find specific directions for each food to ensure quality and safety.Drying methods include air drying, oven drying and using a dehydrator. A dehydrator is probably the best choice. If you think you will be drying foods regularly, think about investing in an electric dehydrator.Good late-summer produce to dehydrate includes apples, mushrooms, grapes and hot and sweet peppers.I'm John Russell. And I'm Anne Ball.Adapted from http://www.kekenet.com/broadcast/201909/594959.shtml VOCABULARY1. microorganism n. 微生物 A micro-organism is a very small living thing which you can only see if you use a microscope.2. produce n. (不可数名词) things that have been made or grown, especially things connected with farming 产品;(尤指)农产品。例如:farm produce农产品3. freezer burn n. 冷冻食品表面干燥变硬,(冷)冻灼(伤)4. fig n. a soft sweet fruit that is full of small seeds and often eaten dried 无花果。例如:a fig tree无花果树5. okra n. (不可数名词) (ladies' fingers) the green seed cases of the okra plant, eaten as a vegetable 秋葵荚(可食用)6. salt brine卤水7. chutney n. (不可数名词) a cold thick sauce made from fruit, sugar, spices, and vinegar , eaten with cold meat, cheese, etc. 酸辣酱8. relish n. (不可数名词, 可数名词) a cold thick spicy sauce made from fruit and vegetables that have been boiled, that is served with meat, cheese, etc. 风味佐料(用水果和蔬菜煮后制成的冷稠酱汁)9. watermelon rinds西瓜皮10. bruise n. a mark on a fruit or vegetable where it is damaged(水果或蔬菜的)碰伤,伤痕11. dehydrator n. 脱水器; 除水器12. dehydrate v. to remove the water from sth., especially food, in order to preserve it 使(食物)脱水 QUESTIONSTASK IListen to the news and choose the best answer to each question you hear.(Q1) What’s the simplest way to save produce?(A) Freezing.(B) Canning.(C) Pickling(D) Drying.(Q2) Which method works best with naturally acidic foods like fruits?(A) Freezing.(B) Canning.(C) Pickling(D) Drying.(Q3) What’s probably the best choice of drying?(A) Air drying.(B) Oven drying.(C) Using a dehydrator.(D) Using a washing machine.TASK IIListen to the news and fill in the blanks.4 Common Ways to Preserve Food WAYS DETAILS1 Freezing  Freezing is the simplest way to save produce. It is important to freeze the produce (Q1) __________________________, and to do so in freeze-grade bags or other containers. Eugenia Bone has written books about food and nature. She notes that you should (Q2) _____________________ food before you freeze it. One problem to avoid is (Q3) __________________, which can affect the taste and feel of food. To prevent this, use plastic bags, wraps or containers designed for the freezer. Good late-summer produce to freeze includes green beans, (Q4) ______________, apples and plums.2 Canning  There are two main ways to can produce: boiling hot water baths and pressure canning. (Q5) ____________________________ involves putting food in glass canning jars and then heating the jars in a pot of boiling water. The heat forces air from the glass jars and frees the food from bacteria and microorganisms. You can then (Q6) _______________ the jars. This method works best with naturally acidic foods like fruits. (Q7) _________________ food requires a pressure canner. The pressure canner you use should be based on the kind of cooking equipment you have and the amount of food you plan to can. Whichever method you use, always test the seal that (Q8) ___________________________. Good late-summer fruits for water bath canning include apples, berries, (Q9) ________________________, figs and peaches. Good foods for pressure canning include (Q10) ____________________, corn, okra and bell peppers.3 Pickling  There are many methods of preserving food in (Q11) _______________, salt brine or a similar mixture. You can pickle whole vegetables, like green beans or okra. Another possibility is to make chutney or relishes. This is done by adding salt, pepper or other seasonings to small, cut pieces of vegetables. Good late-summer foods to pickle include (Q12) ____________________, hot chili peppers, watermelon rinds and eggplants.4 Drying  A final way to preserve food is by drying it. Whatever food you are drying should be just ready to eat and not have bruises. When drying, try to find specific directions for each food to ensure (Q13) ____________________________. Drying methods include air drying, oven drying and using a dehydrator. A (Q14) _______________________________ is probably the best choice. If you think you will be drying foods regularly, think about investing in an electric dehydrator. Good late-summer produce to dehydrate includes apples, (Q15) _______________, grapes and hot and sweet peppers. KEYTASK IListen to the news and choose the best answer to each question you hear.(Q1) A。(命题出处) You can preserve late-summer fruits and vegetables in four basic ways. These include freezing, canning, pickling and drying or dehydrating. Freezing is the simplest way to save produce.(Q2) B。(命题出处) There are two main ways to can produce: boiling hot water baths and pressure canning. A boiling water bath involves putting food in glass canning jars and then heating the jars in a pot of boiling water. The heat forces air from the glass jars and frees the food from bacteria and microorganisms. You can then seal the jars. This method works best with naturally acidic foods like fruits.(Q3) C。(命题出处) Drying methods include air drying, oven drying and using a dehydrator. A dehydrator is probably the best choice.TASK IIRead the table. Then listen to the news and complete the table.4 Common Ways to Preserve Food WAYS DETAILS1 Freezing  Freezing is the simplest way to save produce. It is important to freeze the produce (Q1) as quickly as possible, and to do so in freeze-grade bags or other containers. Eugenia Bone has written books about food and nature. She notes that you should (Q2) cool down food before you freeze it. One problem to avoid is (Q3) freezer burn, which can affect the taste and feel of food. To prevent this, use plastic bags, wraps or containers designed for the freezer. Good late-summer produce to freeze includes green beans, (Q4) cabbage, apples and plums.2 Canning  There are two main ways to can produce: boiling hot water baths and pressure canning. (Q5) A boiling water bath involves putting food in glass canning jars and then heating the jars in a pot of boiling water. The heat forces air from the glass jars and frees the food from bacteria and microorganisms. You can then (Q6) seal the jars. This method works best with naturally acidic foods like fruits. (Q7) Pressure canning food requires a pressure canner. The pressure canner you use should be based on the kind of cooking equipment you have and the amount of food you plan to can. Whichever method you use, always test the seal that (Q8) keeps out fresh air. Good late-summer fruits for water bath canning include apples, berries, (Q9) cherries, figs and peaches. Good foods for pressure canning include (Q10) carrots, corn, okra and bell peppers.3 Pickling  There are many methods of preserving food in (Q11) vinegar, salt brine or a similar mixture. You can pickle whole vegetables, like green beans or okra. Another possibility is to make chutney or relishes. This is done by adding salt, pepper or other seasonings to small, cut pieces of vegetables. Good late-summer foods to pickle include (Q12) cucumbers, hot chili peppers, watermelon rinds and eggplants.4 Drying  A final way to preserve food is by drying it. Whatever food you are drying should be just ready to eat and not have bruises. When drying, try to find specific directions for each food to ensure (Q13) quality and safety. Drying methods include air drying, oven drying and using a dehydrator. A (Q14) dehydrator is probably the best choice. If you think you will be drying foods regularly, think about investing in an electric dehydrator. Good late-summer produce to dehydrate includes apples, (Q15) mushrooms, grapes and hot and sweet peppers.

第九届教学大赛商务英语专业组一等奖褚凌云说课

说课点评:该选手开始说课时显得有些紧张,说话不很流畅。尽管如此,选手对说课的内容把握得还不错。她首先介绍该课用四节课完成。之后,借助板书,选手将教学目标展示得很清楚(1’16’’)。目标中包含了语言要点、对课文篇章的主旨和结构的掌握、学习商务英语写作技能及提高批评性思维能力。该选手继续借助板书,将教学过程介绍得有条不紊(2’37’’);其教学过程分为四个部分:背景知识介绍、课文分析、学生活动(聚焦提高批判性思维能力)、总结及作业布置。说课伊始,很有必要将教学的目标和教学过程及教学内容告诉学生。该选手这方面做得很好。紧接着选手介绍其教学方法(3’49’’):交际教学法和任务型教学法交替使用。她对这两种教学法做了阐释,并与教学目标中的“提高学生批判性思维能力”结合起来。这符合教学逻辑,使得教学过程中的每个环节有机地关联起来了。介绍完了教学目标之后,选手开始介绍上课的具体内容。刚开始选手阐释得不太流畅,出现一些不该有的停顿(5’9’’),这说明选手在备课时对说课的内容把握得不是很好。不过,在分析课文篇章时选手表现得还不错,她做到了迅速、清楚、准确地传递相关信息。在接下去的说课过程中,选手基本表现自然,对课文的主旨用一句话高度概括出来了。选手较详细地阐述了课文中商务英语语言的教学内容和方法(6’40’’),通过让学生利用语料库或其他方法去获得课文中一些关键的商务英语语汇的理解;通过真实的例子,让学生学会理解和使用课文中的语汇。这是一种行之有效的教学方法,调动了学生的积极性。不过,在课堂教学过程中不宜让学生花太多时间去完成该项任务。选手最好能在阐释教学方法过程中说明这一点。在说课的最后一部分,即说课的重点部分时(7’22’),该选手较之前面说课表现得更自然、更熟练。为了提高学生的批判性思维能力,选手计划给学生提供与课文相关的案例,要求他们对案例进行分析研究以帮助学生提高批判性思维能力。该选手在最后的讲解及后面布置课后作业时仍然能将课文的主旨和课文中的一些具体内容,如“商务会议”、“商务谈判”结合起来,并要求学生对比分析一些国家do business的特点(8’50’’),这既训练了学生的独立思维能力,又将学生的课后作业与课文的主题紧密结合起来了,使该选手说课的逻辑结构更为合理。选手在回答评委问题的环节中(10’11’’)表现较好,能抓住评委问题的关键给予较为合理的回答,尤其在回答第二个问题“Negotiators may not be the decision-makers”时,选手反应迅速、条理清楚,能自圆其说。总体看来,该选手的说课较之其决赛中的讲课略微逊色,显得有些紧张,有时过多地依赖准备的笔记。不过,在说课的最后几分钟,选手表现自然些。尽管如此,该选手在说课过程中基本做到了脉络清晰、内容翔实、解释到位、逻辑合理。如果该选手在说课过程中借助几张PPT展示,结合适当的板书,能更好地展示说课的内容,可以收到更佳的说课效果。点评专家:翁凤翔教授

第九届教学大赛商务英语专业组一等奖余静授课

授课点评:余静老师的教学设计比较完整,包括1)课前准备(小组项目、模拟电视采访);2)课堂教学(课文精讲、重点词汇联系、微型调研等);3)课外作业(教材自带作业、用学到的新词写总结、采访录像等);4)效果评估(诊断性测试、总结性测试、同学评估等)四个环节,形式多样,内容丰富,有利于多方面调动学生积极性和多角度训练学生的商务英语能力。授课中,余静教态自然,英语流利,语音语调总体准确,与商务有关的知识与技能了解较多,有较强的课堂掌控和应变能力,展现了一名商务英语教师的良好素质。余静在授课中善于运用多媒体。比如,她展示文艺复兴初期和晚期的两幅油画,要求学生通过比较找出差别。她还用动态的几何图形来描述贸易、科技和艺术在文艺复兴中的互动作用,取得了较好的教学效果。不过,有些比喻似乎解读过度。比如,她说贸易加上科技和艺术,文艺复兴就有了三角形的稳定(视频7’00”)。实际上,课文作者强调贸易这个因素,是为了说明文艺复兴起因的多样性,而不是稳定性。实际上,余静后来(视频17’30”)在布置作业时,还让学生试用(四)方形、五边形来形容人生、商业模式的多样性,这同前面强调稳定性在逻辑上就矛盾了。其他选手的授课重点是英语,而余静把商务和英语结合起来讲,体现了商务英语教师的特色,对此应予以充分肯定和鼓励。不过在授课中,有时低估了讲清某些复杂过程所需的时间。比如,也许是时间紧迫,她对bill of exchange在中世纪的运作方式的解释(视频11’50”)过于简略,且与PPT上的定义不相吻合,容易造成理解困难甚至误解。在回答评委提问时,余静理解准确,反应迅速,表达清晰,回答切题。总而言之,作为一名年轻的商务英语教师,余静在授课中展现出比较突出的专业素质,有很大的发展潜力。点评专家:陈准民教授

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特邀知名研究学者、核心期刊编委就外语学科实证类论文的研究设计、写作方法、学术规范、期刊投稿审读原则与程序等进行主题讲座和互动交流,旨在强化培养教师学术素养,提高科研及论文写作能力。主要内容有:1) 学术论文写作与发表综述(含国际发表);2)实证类论文各要素(摘要、引言、方法设计、数据报告、结果讨论等)的写作方法与修改策略;3)如何有效设计调查问卷;4)如何科学设计实验;5)国际期刊书评及综述论文写作策略;6)知识图谱软件VOSviewer软件使用及案例分析。

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