Kim Cobb, a professor at the Georgia Institute of Technology in Atlanta, is one of a small but growing minority of academics     1     are cutting back on their air travel because of climate change. Travelling to conferences, lectures, workshops, and the like frequently by plane       2    （view） as important for scientists to get together and exchange information. But Cobb and others     3     （be） now questioning that idea pushing conferences to provide more chances to participate remotely, and     4    （change） their personal behavior to do their part in dealing with the climate change crisis. On a website called No Fly Climate Sci, for example,     5    （rough） 200 academics - many of them climate scientists     6     （promise） to fly as little as possible since the effort started two years ago.

Cobb, for her part, started to ask conference organizers who invited her to speak     7     she could do so remotely; about three-quarters of     8     time, they agreed. When the answer, was no, she, declined the     9     （invite）. That approach brought Cobb's air travel last year down by 75%, and she plans     10    （continue） the practice. "It has been fairly rewarding. ", she says, "a really positive change."

3 . Self-esteem is the ruling view you have of yourself. This includes your beliefs about your inner qualities and how you think others see you.     1     Someone can develop low self-esteem even when they are highly functional and greatly skilled. Understanding this mysterious emotional currency might be the key to unlocking your own self-worth.

People with healthy self-esteem don't need to boast about themselves to others. People with low self-esteem may tell you how much everyone loves them, what a great job they do at work, and how amazing they are at pretty everything under the sun even though they really wonder if it's true. People may see them as obnoxious or “full of themselves”.     2     They are not shy about sharing ideas, including constructive criticisms of others. They also take care of themselves without second-guessing or apologizing. They are the people who we say seem “sure of themselves”.

If you're starting to think you may have low self-esteem, you can work on the way you talk to yourself. When you turn off negative self-talk, you can open the floor to positive reinforcements and access the courage to show different sides of yourself. It isn't going to feel good at first, though. Keep going until it becomes less and less and maybe even a few awkward laughs in the mirror may help.     3    

However, in serious cases of low or even non-existent self-esteem, you may want to call in a professional or a specialist. Good mental health is important, and professionals doing psychotherapy do not pass judgement or give corrections.     4     It is the best way to get at the roots of your real self-esteem problems.

    5     It will take some work but your entire life — from your relationships to your body image to your work habits — will be touched with the kind of power that only comes from someone believing in themselves. This is the hardest part, and the greatest leap. With some changes and support, you can improve your self-esteem and see how everything else changes as a result.

4 . My students frequently ask me how I planned out my career to become president of Fidelity Investments. I always tell them, “There was no grand plan; I backed into my career one step at a time.” In this tough economy and ever-changing world, it is more important than ever to smartly evaluate each step in your career. To prepare for whatever surprises lie ahead, try to make choices today that will maximize your options in the future.     1    

Gaining transferable (可转移的) knowledge begins with the choices you make at school. You want your education to provide you with the necessary skills and expertise to succeed in a wide variety of jobs.     2     I favor those that involve extensive writing, rigorous analysis, or quantitative skills.

Once you have finished your formal education, search for jobs that will allow you to further expand your transferable knowledge—to help you find your next job. Let’s say you take a job putting together airplane leases. Within a few years, you could become the world’s expert on the subject.     3     By contrast, if you take a job that will expand your computer programming skills, you can greatly boost your options for later steps in your career.

Remember gaining transferable knowledge is only one piece of the puzzle.     4     As a saying goes, “Organizations don’t hire people. People hire people.” The more people you know, the more people will think of you when a job pops open—even when it is not publicly advertised.

Of course, you can build your network to some degree without changing jobs.     5     But this sort of event-driven networking pales in comparison with the deep bonds you can develop with your colleagues by working, communicating, and traveling with them.

5 . Animal appear to predict earthquakes by sensing electricity in the air — the first study to find reliable evidence of the phenomenon has shown.

Cameras revealed an “amazing” drop in the number of animals up to 23 days before a major quake hit their rainforest home at Yanachaga National Park in Peru. Lead scientist Dr Rachel Grant, from Anglia Ruskin University, said, “The results showed that just before the earthquake, animals’ activity dropped right down.”

On a normal day the cameras placed around Yanachaga National Park record between 5 and 15 animals. But in the 23 days before the earthquake, the number of animals dropped to five or fewer per day. No animals were photographed at all on five of the seven days immediately before the quake.

Another study showed that animal activity remained normal in the park over a different period when seismic (地震的) activity was low. Co-author, professor Friedemann Freund, said, “The cameras were located at an altitude of 900 meters. If air ionization occurred, the animals would escape to the valley below, where there were fewer positive ions ( 离子). With their ability to sense their environment, animals can help us understand small changes that occur before major earthquakes.”

Other evidence suggested that before the earthquake, the air around the high mountain sites filled with positive ions that can be produced when rocks are placed under stress. Positive ions have been known to cause ill effects in humans as well as animals. Scientists believe the animals were made to feel uncomfortable by the positive ions, leading them to avoid the area. They are thought to have escaped to lower ground, where the air was less ionized. The findings may help experts develop better short-term seismic forecasts.

6 . The next time San Francisco residents stop a taxi, they may step into a car with no one behind the wheel. Driverless taxis are now allowed to come on the city’s streets. On June 2, 2022, Cruise, a division of General Motors (GM), was approved to charge for rides in its self-driving cars, becoming the first company allowed to operate commercial driverless cars in a major US city.

Though Cruise is regarding it as a big win, its self-driving cars aren’t totally free to run on the streets of San Francisco as they please. Cruise vehicles will be limited to transporting passengers in less crowded areas of the city between 10 p.m. and 6 a.m. The speed limit is 30 mph. They are also not allowed to operate in heavy rain or fog. The rules are meant to reduce any injuries or accidents.

Cruise plans to launch the service gradually with a team of just 30 cars. The first robotaxis will be improved versions of GM’s Chevrolet Bolt. However, the company is seeking approval to get its custom-built Cruise Origin on public roads. The driverless electric vehicle has no wheels or pedals (踏板) and can attain highway speeds. The car consists mostly of a siting space, where passengers can face each other.

Cruise’s ability to obtain the commercial permit to operate is a big step forward. However, the company still has to convince passengers that its technology is safe. Many remain concerned about safety. A 2021 survey by the American Automobile Association found that 74 percent of Americans are afraid to ride in a self-driving vehicle.

It remains to be seen how the new driverless taxi experiment will play out in San Francisco. But based on the vast number of companies that are racing to develop self-driving vehicles and the tens of thousands of people on waitlists for robotaxi rides, the Cruise pioneering program is at least set for popularity, if not success.

7 . Television has transformed politics in the United States by changing the way in which information is spread, by altering political campaigns, and by changing citizen’s patterns of response to politics. By giving citizens independent access to the candidates, television reduced the role of the political party in the selection of the major party candidates. By centering politics on the person of the candidate, television accelerated the citizen’s focus on character rather than issues.

Television has altered the forms of political communication as well. The messages on which most of us rely are briefer than they once were. The stump speech, a political speech given by traveling politicians and lasting 1 to 2 hours, which was popular in the nineteenth-century, has given way to the 30-second advertisement and the 10 second “sound bite” in broadcast news. Increasingly the audience for speeches is not that standing in front of the politician but rather the viewing audience who will hear and see a short video of the speech on the news.

In these simplified forms, much of what comprised the traditional political speech of earlier ages has been lost. In 15 or 30 seconds, a speaker cannot establish the historical context that shaped the issue in question, cannot detail the probable causes of the problem, and cannot examine alternative proposals to argue that one is preferable to others. In short videos, politicians assert (断言) but do not argue.

Because television is an intimate (亲密的) medium, speaking through it requires a changed political style that is more conversational, personal, and visual than that of the old-style stump speech. Reliance on television means that increasingly our political world contains memorable pictures rather than memorable words. Schools teach us to analyze words and print. However, in a world in which politics is increasingly visual, informed citizenship requires a new set of skills.

Recognizing the power of television’s pictures, politicians craft televisual, staged events designed to attract media coverage. Much of the political activity we see on television news has been crafted by politicians, their speechwriters, and their public relations advisers for televised consumption. Sound bites in news and answers to questions in debates increasingly sound like advertisements.

8 . In some ways, it is surprising that languages change. After all, they are passed down through the generations reliably enough for parents and children to communicate with each other.     1     For example, while Japanese has changed relatively little over a thousand years, English evolved rapidly in just a few centuries. Many present day speakers find Shakespear’s sixteenth-century plays difficult and Chaucer’s fourteenth-century The Canterbury Tales nearly impossible to read.

Languages change for a variety of reasons. Large-scale shifts often occur in response to social, economic, and political pressures, as there are many examples of language change fueled by invasions, colonization, and migration.     2     Frequently, the needs of speakers drive language change. New technologies industries, products and experiences simply require new words. By using new and emerging terms, we all drive language change. But the unique way that individuals speak also fuels language change because no two individuals use a language in exactly the same way.     3     Through our day-to-day interactions, we pick up words and savings from other people and integrate them into our speech. Teens and young adults, for example, often use different words and phrases from their parents. Some of them spread through the population and slowly change the language.

    4     Vocabulary can change quickly as new words are borrowed from other languages, or as words get coined, combined, or shortened. Some words are even created through misinterpretation of form. As noted in the Linguistic Society of America’s publication Is English Changing?, the word pea is one such example. Up until about four hundred years ago, pease could refer to either a single pea or many peas. At some point, people assumed that pease was the plural form of a new word, pea, based on the way pease sounded. While vocabulary can change quickly, sentence structure — the order of words in a sentence changes more slowly.     5     For example, during the Great Vowel Shift five hundred years ago, the pronunciation of vowels in English changed dramatically. This shift represents the biggest difference between the pronunciation of Middle English and Modern English.

10 . Marvelous Scenic Walks Near London

There are plenty of walking routes in London. If you fancy something a bit more rural, then the green and pleasant land has plenty to offer.

If you’re in the mood for a gentle rural walk, the Thames Path is far from boring. The 5-mile footpath follows the curve of the river, winding past wildflower meadows (草地).

Post-walk pub: Pangbourne’s seventeenth-century pub The Swan serves high-end dishes. Bag a table on the riverside or keep toasty by one of its open fires.

To admire this spots rural views, first you’ve got to jump across 17 stepping stones and climb 272 steps to the top of Box Hill, where the path begins. The total distance is 6.8 miles.

Post-walk pub: The cavernous Tree on Box Hill has an attractive menu and huge beer garden, or sample a glass of Juniper Hill at Denbies Winerie.

If you’ve already done the classic Seven Sisters clifftop walk or can’t face all those hills, this is a long but lovely alternative. The route covering 14.3 miles snakes along a ridge and a river valley.

Post-walk pub: There are always 10 real beers at the old-school pub The Wellington.

Chess Valley in the Chiltern Hills isn’t home to any chess masters, but it used to produce a kind of water plant. This walk of 4.9 miles follows the river, winding through rolling meadows and woods.

Post-walk pub: The George & Dragon is a simple old coaching pub on the High Street with a log fire, real beers and giant burgers.