备考2020年高考英语一轮复习42：说明文写作

阅读下面短文，根据其内容写一篇60词左右的内容概要。

    "Helicopter parents" is a description of parents who are hovering over their children in a state of extreme concern. They always show up to solve their children's problems, protect them from real or imagined harm, resolve stressful situation, offer advice and get them out of trouble, even if they misbehaved. Although out of love and concern, it can have harmful effect on their children's emotional development and future autonomy.

    Children learn through their mistakes. But if you intervene (介入) at first sign of struggle and finish your child's homework, he'll miss out on valuable learning opportunities. You're sending him the message that he needs to be perfect and failure is not an option, otherwise you wouldn't always take over for him.

    By constantly rescuing your child from stressful situation, you're sending him a message that you don't believe he's capable of taking care of himself. Children develop self-esteem by learning how to complete challenge on their own. If you are always intervening, he's denied this vital stage in his growth. As a result, your child may lack the confidence necessary to do well in school, pursue hobbies and interests, and develop friendships.

    If you're always taking care of everything for your child, it'll be more difficult for him to become independent. As an adult, he might find it hard to take care of himself, because he's never developed coping skills to deal with life's challenges. He might suffer from irrational fears, anxiety and depression, which could lead him to drop out of college or frequently change jobs, according to Dr. Michele Borba. Instead of developing healthy relationships, he might seek a partner who will take care of him or controlling, as his parents were.

You can help your child become more independent by allowing him to complete tasks and challenges on his own without your intervention. Even if he fails at first don't interfere—encourage him to start again. Show that you have faith in his abilities to succeed without your help. Allow him to learn natural consequences. Even small things can help him become more independent—making his own bed, preparing his own lunch, shopping for his own clothes and doing homework without your help.

Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.

    Are you working with your computer routinely either as an office employee or a game lover? Are your eyes dry, watery, blurry, seeing double or sensitive to light? If your answer is a "yes", you are likely one of many people today who suffer from digital eyestrain, also called computer-vision syndrome. What on earth is this syndrome coming from? What can we do to deal with this problem?

    Eyestrain is often related to the amount of exposure to screens, the distance from eyes to screens and the use of multiple screens simultaneously. However, studies have also shown that the blue light produced by digital devices today reaches further into the eyes than other kinds of light. This light actually assists attention during the day but can result in interrupted sleep patterns at night.

    Years of scientific researches indicate that eyestrain isn't necessarily an unavoidable problem for those who deal with computer work in the daily base. There are ways you can adopt which can overcome the problem considerably. To begin with, your computer screen should behigh-resolution(高分辨率), at least 50 centimeters wide diagonally and may require a screen filter to decrease reflections. Also, be aware that "computer glasses", which cut down glare and blue light，are available.

    Besides, to reduce your risk for computer-vision syndrome, take frequent breaks during your computer workday. Many workers take only two 15-minute breaks from their computer throughout their day. According to a recent study, eyestrain are significantly reduced when computer workers take four additional five-minute "mini-breaks" throughout their workday. Finally, many of us fall into bad habits while using digital screens, which only worsen the effects of eyestrain. While viewing digital screens, many peopleblink(眨眼) one third less often than they usually do. Place a reminder on your computer to "blink" so that your eyes don't dry out.

概要写作

阅读下面短文，根据其内容写一篇60词左右的内容概要。

    When a rather dirty, poorly-dressed person kneels at your feet and puts out his hands to beg for a few coins, do you hurry on, not knowing what to do, or do you feel sad and hurriedly hand over some money? What should our attitude to beggars be? There can't be no question that the world is full of terrible sad stories. It must be terrible to have no idea where our next meal is coming from. It seems cruel not to give some money to beggars.

    Certainly, most of the world's great religions order us to be open-hearted and share what we have with those less fortunate than ourselves. But has the world changed? Maybe what was morally right in the old days, when one knew exactly who in the village had suffered misfortune and needed help, is no longer the best idea. Quite a few people will not give to beggars. Let us look at their arguments.

    First, some believe that many city beggars dress up on purpose to look pitiable and actually make a good living from begging. Giving to beggars only encourages this sort of evils. Secondly, there is the worry that the money you give will be spent on beer, wine or drugs. Thirdly, there is the opinion that there is no real excuse for begging. One might be poor, but that is no reason for losing one's sense of pride and self-dependence.

    Related to this is the opinion that the problem should be dealt with by the government rather than ordinary people. Some people think beggars should go to the local government department and receive help.

    It is hard to come to a conclusion; there are various cases and we must deal with them differently. A few coins can save a life in some situations, and even if the money is wasted, that does not take away the moral goodness of the giver.

Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.

China's National Treasure

    Pandas are in danger of extinction at present, with only 1,900 remaining in the world. The scientific name of the giant panda is actually called the cat bear, the number of which is very scarce. It is one of the most precious animals in the world and belongs to the protected animals at the national level. Its body color is black and white. Giant pandas are unique to China, very cute. The existing major habitats are in the surrounding mountainous areas such as Sichuan and Shanxi in China. The giant panda has a very powerful function: digesting bamboo. We all know that bamboo is mainly cellulose (纤维素), and most animals can't digest it except giant pandas. The giant panda's hometown is in the mountains southwest of China, green bamboos and springs everywhere. Therefore, the giant panda's main food consists of bamboo and spring water.

    Giant pandas are often referred to as living fossils. Hundreds of thousands of years ago, it was the peak period of giant pandas. This is of great scientific value for studying and protecting biodiversity and environmental changes on the earth. Long, long ago, the climate of the earth became colder and colder, many ice cubes formed on the earth; plants could not grow, and many animals were frozen or starved to death. The giant panda alone survived in the deep valleys of the mountains and became a treasure of the animal world. The giant panda still retains the characteristics of ancient animals. Therefore, the giant panda is not only popular with adults and children in terms of appearance, but also becomes a living fossil for biologists to study ancient creatures.

    The status of giant pandas has been politicized. Giant pandas can be seen in almost all the major countries in the world. The giant panda has become a witness of friendship between China and foreign countries. For decades, wherever the giant panda goes, a panda whirlwind will blow. With its charmed figure and natural cuteness, the Chinese giant panda attracts numerous fans around the world, and at the same time plays the role of friendship ambassador in China's foreign exchanges, becoming one of the most famous symbols in China.

Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.

    An international team of researchers found employees who endure what is known as "abusive supervision" are more likely to behave poorly on purpose by messing up tasks, arriving late, taking long breaks and putting in minimal effort.

    The authors of the study, published in theJournal of Management, sought to answer why horrible bosses make employees less willing to show what is known as organizational citizenship behavior (OCB), or commitment to the company outside of their contractual obligations. That could include helping colleagues or volunteering for unusual work hours. They also assessed its effect on a worker's tendency to harm the organization, by displayingcounterproductive(反作用的) work behavior (CWB).

    To find out more, and uncover which negative outcomebullying(欺凌) behavior is more likely to cause, researchers from Southwestern University of Finance and Economics in China, Renmin University of China and Swinburne University of Technology in Australia cooperated and analyzed 427 existing studies. They found workers acted out either because they felt they were being treated unfairly in the workplace, or felt stressed and this affected their ability to perform as expected. An employee who felt they were a victim of injustice tended more towards reluctance to show OCB. Stressed workers, meanwhile, were more associated with CWB.

    Employers who worried supervisors are affecting productivity can take steps to ease issues by regularly training managers, introducing policies which cope with workplace injustices and helping workers to deal with stress.

    This is not the first study to suggest unkind practices can affect the well-being of workers. The paper follows a study published in the European Heart Journal last year, which showed employees who suffer bullying are more likely to develop heart diseases than those who aren't. Bullying and violence are common at workplaces and those exposed to these stressors are at higher risk.

Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.

    Small businesses hold the key to employed happiness. As the calendar flips to another year, many employees will consider starting the new year on the hunt for a new job.

    In today's changing workforce, it is more important than ever for companies to realize that a salary alone is no longer enough to attract or retain strong employees.

    According to a survey by Aflac, small business deserve a round of applause for their ability to keep employees happy. The report found that 85 percent of small-business employees are happy in their current job, and more than half（51 percent）agree that most of or all of their happiness in their current job is a result of working for a small business.

    Nearly a quarter of participants（23 percent）stated that the feeling of importance was the best part of working for a small business. Small businesses have the unique ability to make employees feel appreciated, respected and valued on a personal and professional level.

    In a small-business environment, there are typically fewer layers between newcomers and leadership. This tight-knit structure can create a family-like atmosphere that allows employees to feel that their opinions matter and that they play a significant role in the business's mission.

    Flexibility is also vital in creating employee happiness. According to the report, 30 percent of respondents noted that flexible scheduling was the best part of working for a small business. A workplace that promotes healthy work-life balance can create happier, less stressed employees and can also increase productivity.

    Although small business excel at keeping employees happy, there is always room for improvement. In a small-business community, money does not seem to be the only motivator. In fact, 65 percent of small-business employees indicate that an improvement in their benefits offerings would make them happier.

    By offering a great benefits plan that includes voluntary benefits, small business can ensure that their employees are able to find the right benefits to meet their individual needs.

Write an English composition in 120-150 words according to the instructions given below in Chinese.

假设你将组织本班的毕业聚会，谈谈你的具体设想并说明理由。

内容必须包括:

1）明确聚会将在何时，何地，以何种形式举行

2）简述你的理由

(文中不得出现真实姓名和学校名称)

Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.

What comes first: the optimism or the good health?

    Optimism, defined as the general expectation that the future will be favorable, could provide ways to improve health, some researchers believe. But scientists remain unsure if optimism goes ahead of health improvements, or vice versa.

    A recent study suggests that most people can't help but to think optimistically. This study was conducted by Ed O'Brien, a social psychologist at the University of Michigan in Ann Arbor. The findings suggest that people have a natural tendency to think positively about their future.

    Participants were asked to create a list of imaginary personal experiences that would make them happy or unhappy over the course of the next year. They then ranked how difficult it was to plan that list and how happy they believed they would be in the future overall. The easier it was for people to think of positive future experiences, the happier they imagined they would be. However, there was no relationship between easily developing negative future experiences and expecting to be unhappy as a result.

    O'Brien concluded that people seem to discount the possibility that future negative events will make them happy overall, suggesting that optimism might come more naturally. "We're not as used to thinking about the future in terms of things that are going to go wrong." O'Brien's study is one of many to find that people are consistently optimistic about their future, predicting pleasant experiences and discounting unpleasant ones. If optimism may lead to better health and people generally tend to think optimistically, what does this mean for the connection between mental and physical health? "If we can make sure that optimism comes before healthy states, we might be able to involve and improve people's optimism," Boehm explained. However, it's difficult to determine what comes first: the optimism or the good health.

Directions: Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.

The Possible Health Dangers of Air-conditioners

Although many of us may feel air-conditioners bring relief from hot, humid or polluted outside air, they pose many potential health hazards. Much research has looked at how the movement of air inside a closed environment—such as an office building—can spread disease or expose people in the building to harmful chemicals.

    One of the more widely publicized dangers is that of Legionnaire's disease, which was first recognized in the 1970s. This was found to have affected people in buildings with air-conditioning systems in which warm air pumped out of the system' cooling towers was somehow sucked back into the air intake, in most cases due to poor design. The warm air, filled with bacteria, was combined with cooled, conditioned air and was then circulated around various parts of the building. Studies showed that even people outside such buildings were at risk if they walked past air exhaust pipes.

    Large air-conditioning systems add water to the air they circulate by means of humidifiers. In older systems, the water used for this process is kept in special reservoirs, the bottoms of which provide breeding grounds for bacteria which can find their way into the ventilation system. The risk to human health from this situation has been highlighted by the fact that the immune systems of approximately half of workers in air-conditioned office buildings have developed the ability to fight off the organisms found at the bottom of system reservoirs. But chemicals called “biocides” are added to reservoirs to make them germ-free, and they are dangerous in their own right in sufficient quantities, as they often contain compounds strongly linked to cancers.

    Finally, it should be pointed out that the artificial climatic environment created by air-conditioners can also affect us. In a natural environment, whether indoor or outdoor, there are small variations in temperature and humidity. Indeed, the human body has long been accustomed to these normal changes. In an air-conditioned living or working environment, however, body temperatures remain well under 37℃, our normal temperature. This leads to a weakened immune system and thus greater exposure to diseases such as colds and flu.

阅读下面短文，根据其内容写一篇60词左右的内容概要。

    Technology is forever changing the way we get our news. Many people now get a lot of their news on electronic devices, instead of traditional media, such as newspapers, television or radio. An increasing number of people also report turning to social media for information

    Now, there is a new technology that could greatly change the way we get the news: computer-created news readers. Recently, China launched what it called the worlds first artificial intelligence, or Al news presenters.

    The news readers, supported by machine learning technology, are based on two real-life Chinese newsmen. One is able to present newscasts in English, the other, in Mandarin Chinese Report said machine learning was used to examine video images and sounds of the two newsmen. Similar technology has been used to create video products known as “deepfake” videos. "A deepfake a video that looks real, but was electronically changed. Such videos can make people appear to say things they never said

    It's said that the Al presenters will be a great improvement to the news team because they "can work 24 hours a day" on its website and on social media. One of the presenters even promised to work tirelessly" to keep people informed. Some machine learning experts said the system showed off Chinas latest progress in voice recognition, text-to-speech technology and data analysis

    Others wondered about the effects robots might have on employment and workers. Some people argued that only low-level jobs requiring heavy labor will be easily replaced by robots. Others praised the technology as a way for companies to make money from low-cost labor machines. Some businesses have experimented with similar technology for possible use in news operations.

    Britain's BBC recently released a video that used machine learning to make it look like one of its news readers speaking different languages. The London-based company that developed the system says its goal is to "remove the language barrier" for many different kinds of video across the internet. Also, Amazon's working on Alexa smart speaker system to create a special news reader voice. Amazon is reportedly preparing to launch Alexas news reader voice in the near future