概要写作：阅读下文，根据其内容写一篇50-60词胡内容概要。For decades, do...

概要写作：阅读下文，根据其内容写一篇50-60词胡内容概要。

For decades, doctors have warned patients that too much salt can be bad for the heart. Heart attack has long beenconsidered a grown-up problem, but new research suggests that salt is starting to affect children. Eating too much salty food when you’re young can lead to health problems later.

Salt is made up of two elements: sodium andchlorine. Dietary guidelines recommend that adults and kids aged 9-13 shouldn’t consume more than about a teaspoon of sodium daily. The average American eats twice this amount.This worries doctors because too much sodium results in the body producing more blood. To pump the extra blood, the heart has to work harder. This causes a rise in blood pressure---a measurement of how stressed the heart is. High blood pressure often leads to heart disease.

A kid with high blood pressure is more likely to become a grown-up with high blood pressure. Reducing salt might also help stop childhood obesity. British researchers recently found that kids who eat less salt also drink fewer sugary soft drinks. Drinking fewer fizzy drinks makes kids less likely to gain weight, become obese and develop high bloodpressure.

Salt can affect more than just your heart and weight. A recent study found that a growing number of kids in theUSaresuffering from kidney stones. This painful condition usually affects people aged over 40. Now, kids as young as five are getting it.

Cutting down on salt can be hard, but you can retrain yourself to prefer less salty food. The best way to reduce the amount of sodium you eat is to make changes gradually. Start by adding half as much salt to your dinner as you normally do. Switch to fresh foods instead of canned and bottled versions. And go easy on the condiments. You might also want to start reading nutrition labels. You may be surprised to learn that there are1,150 mg of sodium in a double cheeseburger, and over 2,000 mg in many frozen meals.

高二英语概要写作困难题查看答案及解析

阅读下面短文，根据其内容写一篇60词左右的内容概要。

In the last few decades, scientists have reached consensus and reported that human beings are causing changes in the Earths climate.

In the last 50 years, gases pumped into the Earth’s atmosphere by the factories and vehicles have been speeding up the process of global warming and affecting our climate, Global warming refers to an average increase in the Earths temperature that, in turn, leads to climate change. If we continue to produce carbon dioxide and other gases in such huge quantities, we are expecting severe consequences. Recent reports have warned that global warming will cause terrible climate changes including more frequent flooding, heat, waves and droughts. Serious disease will spread and industries that rely on nature will be badly affected. Increased temperatures will also cause the polar ice to melt, raising sea levels and flooding many islands and cities. How can we stop these disasters from happening?

Government all over the world should take on the responsibility, but this is no easy task. Some governments express reservations about whether global warming is really caused by human activities. Many people believe that they are simply not prepared to give up the amount of money they make from industry to save the earth.

But why wait around for governments to take action? Experts say that each person plays their part. They suggest making small changes like taking public transport, recycling using low-flow shower heads, and buying light bulbs that use less energy. Even simple things like using recycled paper or switching off the light when you leave a room can help. If we add up all these small changes made by everyone worldwide, they won’t be such small changes. They could be the changes that save our future.

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高二英语概要写作中等难度题查看答案及解析

阅读下面短文，根据其内容写一篇60词左右的内容概要

Many Chinese students have studied English for approximately ten years, but most of them cannot even speak English correctly or fluently. In my opinion, there are several obstacles(障碍)that have caused this to happen. The main obstacle is fear! Another is the habit of mentally translating from Chinese to English and then to change these thoughts into spoken words and sentences. Many of these difficulties are caused by the way Chinese people study and learn the language.

We must learn to speak as a child does. When we are learning a second language we need to remember how we learned our native language. Learning to understand and speak a language is one of the first skills a child develops. How does a child learn the language? He listens for a time and then he tries to repeat the words. Parents give great praise for the smallest effort and slightest improvement. Therefore, the child develops courage and is excited about learning. It takes a long time before he knows anything about grammar, spelling or formal sentence structures.

As for language teachers, they should avoid criticism(批评)and be very encouraging and generous with praise. Criticism or pointing out faults too often causes students to lose self-confidence and develop a fear of speaking. The best way to motivate a student is using Praise.

The most important aspect of speaking is having self-esteem. Self-esteem is how you feel about yourself. When most Chinese people are asked how their English is, or they are told their English is, or very are told their English is very good, they immediately respond by saying, ''Oh my English is very poor. ''If you say this to yourself often enough, you will believe it. When someone compliments(称赞)you, just say ''thank you ''.

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高二英语概要写作中等难度题查看答案及解析

阅读下面短文,根据其内容写一篇60词左右的内容概要。

Scientists in London say they have found the best diet for both humans and the planet. If the world followed the so-called "planetary health" diet, the scientists told Reuters that each year more than 11 million early deaths could be prevented. Scientists say that the way we produce and eat food is very bad for the planet. For the health of the planet, they claim the same diet would reduce greenhouse gases and save more land, water and animals.

Tim Lang, a professor at Britain's University of London, co-led the research. He told Reuters, "The food we eat and how we produce it determines change what we eat and the way we eat by "improving food production and reducing food waste."

Well, what do you eat on the planetary health diet? The scientists who created this diet say it is largely plant-based but still has small amounts of dairy, fish and meat. The diet calls for cutting red meat and sugar by 50 percent and doubling the amount of nuts, fruits, vegetables and legumes.

Food situations around the world are not equal. In certain areas, this would mean great changes. People in North America, for example, eat 6.5 times the recommended amount of red meat. On the other hand, people in South Asia eat only half the amount suggested by the new planetary health diet. Meeting the targets for vegetables would need big changes in other areas. In sub-Saharan Africa, people on average eat 7.5 times the suggested amount of vegetables like potatoes and cassava.

The scientists admit their goal will be difficult to achieve. But for them doing nothing is also not an option. Willet said, "If we can't quite make it, it's better to try and get as close as we can."

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高二英语概要写作中等难度题查看答案及解析

阅读下面短文，根据其内容写一篇60词左右的内容概要。

A new study warns that about thirty percent of the world’s people may not have enough　 water by the year 2025．

A private American organization called Population Action International(PAI) did the new　 study．It says more than 335 million people lack enough water now．The people live in 28　 countries．Most of the countries are in Africa or the Middle East．

PAI researcher Robert Engelman says by the year 2025，about 3，000 million people may lack water．At least 18 more countries are expected to have severe water problems．The demand for water keeps increasing．Yet the amount of water on Earth stays the same．

Mr．Engelman says the population in countries that lack water is growing faster than in other parts of the world．He says population growth in these countries will continue to increase．

The　 report says lack of water in the future may result in several problems．It may increase health problems．Lack of water often means drinking waters is not safe．Mr．Engelman says there are problems all over the world because of diseases，such as cholera which are carried in water．

Lack of water may also result in more international conflict．Countries may have to compete for water in the future．Some countries now get sixty percent of their fresh water from other countries．And the report says lack of water would affect the ability to improve their economies．This is because new industries often need large amounts of water when they are beginning．

The Population Action International study gives several solutions to the water problem．One way，it says，is to find ways to use water for more than one purpose．Another way is to teach people to be careful not to waste water．A third way is to use less water for agriculture．

The report also says long--term solutions to the water problem must include controls on population growth．

高二英语语法填空中等难度题查看答案及解析

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。

With global warming and melting ice, it isn’t easy being a polar bear anymore. Some studies have predicted that polar bears could die out by the end of the century. The good news is not all researchers think the bears are absolutely disappearing. Scientists at the American Museum of Natural History(AMNH) have published a new paper indicating that things might not be as bad for polar bears as some scientists expect.

To understand the reason for the researchers’ cautious optimism, we must first understand the factors that are threatening the polar bear’s existence. Polar bears consume a diet of mainly young seals. In order to hunt these seals, polar bears need to rest at the top of sea ice---the same ice that is increasingly melting for most of the year thanks to climate change. In another 50 years, experts expect that the Arctic will be too warm for sea ice to form for half of the year, leaving polar bears without a reliable food source and in serious danger of starvation.

As it turns out, alternative food sources for the polar bears aren’t completely out of the question. For as long as biologists have tailed after the animals, they’ve seen polar bears eating animals found on land like caribou(驯鹿) and snow geese---as well as the snow geese’s eggs.

Can polar bears actually survive off these alternative food sources for long periods of time? To figure this out, researchers calculated the nutrients that a caribou and snow geese diet would provide. They found that even adult male polar bears would be able to obtain more calories than they would burn in hunting these meals. Moreover, the food would provide the food necessary to avoid starvation during the summer months.

Unfortunately, not all polar bears have tended to seek food on land. That said, the researchers expect that necessity would push more polar bears to hunt on land to avoid starvation. They also expect that the bears could learn from their fellow bears how to hunt on land until the practice becomes second nature.

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高二英语书面表达中等难度题查看答案及解析

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 consumer finds that something he or she bought is faulty or in some other way does not live up to what the producer says for it, the first step is to present the warranty(保单),or any other records that might help, at the store of buying. In most cases, this action will produce results.

However, if it does not, there are various means the consumer may use to gain satisfaction. A simple and common method used by many consumers is to complain directly to the store manager. In general, the “higher up” the consumer takes his or her complaint, the faster he or she can expect it to be settled. In such a case, it is usually settled in the consumer's favour, taking it as true that he or she has a just right.

Consumers should complain in person whenever possible, but if they cannot get to the place of buying, it is acceptable to phone or write the complaint in a letter.

Complaining is usually most effective when it is done politely but firmly, and especially when the consumer can show clearly what is wrong with what was bought in question. If this cannot be done, the consumer will succeed best by presenting specific information as to what is wrong, rather than by making general statements. For example, “The left speaker does not work at all and the sound coming out of the right one is unclear” is better than “This stereo(立体音响) does not work.”.

The store manager may advise the consumer to write to the producer, if so, the consumer should do this, stating the complaint as politely and as firmly as possible. But if a polite complaint does not achieve the expected result, the consumer can go a step further. He or she can threaten to take the seller to court or report the seller to a public organization responsible for protecting consumers' rights.

高二英语书面表达中等难度题查看答案及解析

阅读下面短文，根据其内容写一篇 60 词左右的内容概要。

Scientists have announced that they have cloned the first human embryo. This has caused much debate round the world. On the one hand, some scientists point out that if you clone an embryo, you can produce valuable human tissues—such as bone or lung tissue—that could be used to save human lives. On the other hand, many people, including some scientists, disagree and are afraid that, if mankind toys with nature in this way, we may be on our way to producing a real-life Frankenstein’s monster.

Cloning is producing an exact copy of a plant or an animal using its cells. The first mammal to be cloned successfully from an adult cell was Dolly the sheep. She was born in 1996 and died in early 2003, at a much younger age than normal. When she was born, many people were worried that cloning would lead to more diseases in the animal world. However, in general the scientists were praised for their wonderful scientific advance.

Ian Wilmut, the Scottish scientist who created Dolly, is shocked that some scientists are now considering cloning human beings. Although he researches cloning, his intention has never been to create copies of humans. Instead, he thinks research efforts should concentrate on creating new tissues and organs that can be used to cure diseases like cancer. However, some people believe that cloning human embryos with the intention of destroying them shows no respect for human life.

Even though human cloning is causing a lot of anxiety, it is good news for Faye Wilson, a 41-year-old saleswoman who cannot have a baby. “I am anxious to have a child of my own,” she says. “I don’t want to adopt someone else’s child—if I had the chance, I would have a cloned baby right now.”

While cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research in order to produce a cloned human baby. Severino Antinori, an Italian physician, has declared that he wants to be the first to clone a human being.

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高二英语概要写作中等难度题查看答案及解析

阅读下面短文，根据其内容写一篇60词左右的内容概要。

Artificial intelligence(AI)teachers can provide customized teaching for students to meet their unique requirements through analyzing data and deep learning.In the future, they may replace human teachers for basic teaching tasks.Since some students may find it and put new power into traditional teaching patterns.An educational system providing customized teaching centered on students represents the future trend of AI education.

China's AI education has developed rapidly in recent years with the rise of several thousand relevant companies.Currently,AI teachers are able to help students leamn pronunciation,analyze their condition,guide them to learn independently,and even grade writing assignments. Some foreign AI educational systems have been introduced into several domestic schools and have worked well on trial.

However,the promotion of AI education is still facing several difficulties in practice such as low technological levels,inadequacy of data and lack of funds.AI education still depends largely on human teachers' work.Most importantly,it conflicts with current educational patterns because the courses developed by foreign countries are not suitable for Chinese exam-oriented education.Teachers may also find it hard to change their original roles in classrooms since easing control on classes may make them seem irresponsible.These problems need to be handled before the mass promotion of Al education.

With AI teachers,the original teacher-centered classes will be transformed into student-centered ones where teachers only organize the class and provide guidance.Since teachers are supposed to not only equip students with knowledge but also shape their values and help them develop creative abilities,AI teachers will not replace human teachers but will only pose higher requirements of teaching.A combination of AI teachers and human ones can create the best future for Al education.

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高二英语概要写作中等难度题查看答案及解析

阅读下面短文，根据其内容写一篇60词左右的内容概要。

A class pet can be an invaluable experience for elementary school children. The pet can teach responsibility, build a connection to the classroom, serve as a motivator, and be something for the children to love. If the teacher is willing to take on the added responsibility of caring for an animal in addition to all of the children in the classroom, a class pet can be a wonderful addition to a class.

Many factors need to be taken into consideration when choosing a class pet. It cannot be too big, as classrooms generally have limited space. Cost should also be considered since the teacher will likely have to pay for the pet, its food and its habitat. It must also be somewhat hardy (耐寒的). Each particular type of animal has its advantages and disadvantages, and a teacher must weigh these and make a decision about which one is right for his or her class.

Birds are physically more delicate (娇养) than many other animals. They will not survive in drafts (气流) and need a somewhat regulated temperature in their environment. Many birds are quite social and do best with other birds or when being handled routinely by people who can be appropriate with them. Young children are not likely to have the skill to handle a bird without harming it, making it a poor choice for a class pet.

Some reptiles are beautiful to look at but are delicate, afraid of cold, light sensitivity or poisonous and shouldn’t be handled by children. Others are more hardy but require expensive habitats. Most snakes eat rats and mice, which may be a frightening thing for small children to witness.

A hardy fish, such as a betta, is a good low-cost option for a class pet. They are obviously not huggable or able to be caught by children. Besides, they are inexpensive, have relatively long life spans, and can be kept in a simple fish bowl.

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高二英语概要写作困难题查看答案及解析