Experts say the temperature in Eyjafjallajoku...

Experts say the temperature in Eyjafjallajokull's hole appears to have fallen to 100C, meaning it is now producing steam, not magma（岩浆）.

But officials warned that it was too early to say whether the eruption was over completely.

Ash clouds from the volcano grounded thousands of flights last month.

Steinunn Jakobsdottir, a geophysicist from the Icelandic Meteorological Office, told the BBC that the volcano was "kind of not active for the moment".

"The history of the volcano is such that it calms down and then it gets energy again," she said.

"There are still earthquakes under the volcano, and the small earthquake is still not quite down to what it was before the eruption."

'Difficult to say'

Magnus Gudmundsson, of Iceland University, flew over the volcano on Sunday and said information from heat cameras showed the temperatures at the crater had fallen below 100C.

But he told the AFP news agency that nothing was promised and that the previous eruption at the volcano had lasted 13 months, from 1821-23.

"It stopped and started again several times with different intervals（间隔）, so it's difficult to say, difficult to give a timeline," he said.

He also said it was impossible to say whether the neighbouring Katla volcano - a much larger mountain - might also erupt.

At the height of its activity, the volcano sent out huge clouds of ash, which led to airlines grounding their planes for fear it could interfere with plane engines.

It was the biggest action of closing airspace in Europe since World War II, and affected at least 10 million passengers worldwide.

1.What do expert think Eyjafjallajokull is like now?

A．Magma is still coming out

B．The hole appears about 100 degrees C

C．The eruption was not over

D．It is very cold.

2.How do expects know the temperature in Eyjafjallajokull's hole?

A．By taking photos                        B．By taking its temperature

C．By going close to it                      D．By driving past it

3.What does Steinunn Jakobsdottir think of Eyjafjallajokull?

A．It will erupt again soon

B．It will be sleeping

C．Another mountain might also erupt

D．It’s uncertain

4.What do you think the main idea is?

A．the biggest action of closing airspace in Europe

B．the temperature in Eyjafjallajokull's hole

C．The Eyjafjallajokull volcano in Iceland

D．The earthquake in Iceland

高三英语阅读理解中等难度题查看答案及解析

A rare hole has opened up in the ozone layer above the Arctic, in what scientists say is the result of unusually low temperatures in the atmosphere above the north pole.

The hole, which has been (racked from space and the ground over the past few days, has reached record dimensions, but is not expected to pose any danger to humans unless it moves further south. If it extends further south overpopulated areas, such as southern Greenland, people would be at increased risk of sunburn.

However, on current trends the hole is expected to disappear altogether in a few weeks.

Low temperatures in the northern polar regions led to an unusual stable polar vortex（极地漩涡），and the presence of ozone-destroying chemicals such as chlorine（氯）in the atmosphere -- from human activities - caused the hole to form.

“The hole is principally a geophysical curiosity." said Vincent-Henri Peuch. director of the Copernicus Atmosphere Monitoring Service. "We monitored unusual dynamic（动态的）conditions, which drive the process of chemical depletion of ozone. Those dynamics allowed for lower temperatures and a more stable vortex than usual over the Arctic, which then triggered the formation of polar stratospheric（平流层的）clouds and the catalytic（催化的）destruction of ozone."

The hole is not related to the Covid-19 shutdowns that have dramatically cut air pollution and reduced greenhouse gas emissions. It is also too early to say whether the unusually stable Arctic polar vortex conditions are linked with the climate crisis, or part of normal stratospheric weather variability.

Peuch said there were no direct implications for the climate crisis. Temperatures in the region are already increasing, slowing the depletion of ozone, and the hole will start to recover as polar air mixes with ozone-rich air from lower latitudes. The last time similar conditions were observed was in spring 2011.

While a hole over the Arctic is a rare event, the much larger hole in the ozone layer over the Antarctic has been a major cause for concern for more than four decades. The production of ozone-depleting chemicals has been dramatically reduced, under the 1987 Montreal Protocol 蒙特利尔协议），but some sources appear still to be functioning—in 2018. unauthorized emissions were detected from some areas.

New sources of ozone-depleting chemicals were not a factor in the hole observed in the Arctic, said Peuch. "However, this is a reminder that one should not take the Montreal Protocol measures for granted, and that observations from the ground and from satellites are central to avoid a situation where the ozone-destroying chemical level in the stratosphere could increase again.''

1.What is the possible meaning of the underlined word "depletion"?

A.replacement B.consumption

C.increase D.production

2.According to the passage, scientists are concerned about the hole because .

A.it is expected to be a threat to the mankind

B.the new hole is caused by air pollution and greenhouse gas emissions

C.it may encourage further scientific research and environmental awareness

D.it warns us of an oncoming climate crisis

3.What can be learned from the last two paragraphs?

A.The hole over the Arctic shares the same causes as the one over the Antarctic.

B.Human activities are highly responsible for producing ozone-destroying chemicals.

C.The Montreal Protocol has successfully prevented new emissions.

D.Some new illegal emissions are to blame for the hole over the Arctic.

4.The best title for the passage is probably .

A.Record-size Hole Opens in Ozone Layer above the Arctic

B.Actions Urgently Needed for a New Hole in Ozone Layer

C.Environmental Disaster and International Cooperation

D.How a Hole in Ozone Affects our Life on Earth

高三英语阅读理解困难题查看答案及解析

Thousands of persons in Peru are suffering from the disease cholera. Medical experts say it is the first time in their century that cholera has reached the western part of the world. The United States Centers for disease control says the kind of cholera has been spreading throughout the world since 1961. It was discovered that year in Indonesia. Since the first case in Peru, more than sixteen thousand people have been affected and about one hundred have died.

Cholera is caused by polluted food and water. People become infected (传染) when they eat the polluted food or drink the polluted water. If untreated immediately, they may die within hours. Most victims however, can be saved. Treatment includes drugs and replacement of body fluids (液体) directly into the blood.

Medical researchers have developed a vaccine (菌苗) medicines to protect against cholera. But the vaccine is only about 50% effective. And it protects against cholera for only about six months. Medical experts say the best way to fight cholera is to prevent it. They also say people should not eat uncooked food or food that has not been cooked long enough. People who live in areas where cholera has been found should wash their hands before eating and cooking. They should drink only water that has been boiled or made pure with chemicals.

1.The underlined word “Cholera” in the first paragraph means ________.

A. a certain place in Peru

B. a kind of illness which may make people die

C. a certain place in Indonesia

D. a certain medicine to deal with diseases

2.Cholera results from (由于……结果) ________.

A. Peru and Indonesia

B. the different peoples in the world

C. the different areas in the world

D. polluted water and polluted food

3.How to treat the people who have been caught by cholera?

A. By medicines and blood improvement.

B. By eating unpolluted food.

C. By drinking unpolluted water.

D. By taking them to a separated place.

4.The most effective way of avoiding cholera is ________.

A. seeing doctors as soon as possible

B. fighting against it

C. paying attention to the eating and drinking

D. taking vaccine immediately

高三英语阅读理解中等难度题查看答案及解析

Thousands of persons in Peru are suffering from the disease cholera. Medical experts say it is the first time in their century that cholera has reached the western part of the world. The Untied States Centers for disease Control says the kind of cholera has been spreading throughout the world since 1961. It was discovered that year in Indonesia. Since the first case in Peru, more than sixteen thousand people have been affected and about one hundred have died.

Cholera is caused by polluted food and water. People become infected (传染 ) when they eat the polluted food or drink the polluted water. If untreated immediately, they may die within hours. Most victims however , can be saved. treatment includes drugs and replacement of body fluids ( 液体) directly into the blood.

Medical researchers have developed a vaccine ( 菌苗) medicines to protect against cholera. But the vaccine is only about 50% effective. And it protects against cholera for only about six months. Medical experts say the best way to fight cholera is to prevent it. They also say people should not eat uncooked food or food that has not been cooked long enough. People who live in areas where cholera has been found should wash their hands before eating and cooking. They should drink only water that has been boiled or made pure with chemicals.

1.The underlined word Cholera in the first paragraph means____.

A. a certain place in Peru　　 B. a kind of illness which may make people die.

C. a certain place in Indonesia　　 D. A certain medicine to deal with diseases.

2.Cholera results from (由于……结果 ) _____.

A. Peru and Indonesia　　 B. the different peoples in the world

C. the different areas in the world　　 D. polluted water and polluted food

3.How to treat the people who have been caught by cholera? _____.

A. By medicines and blood improvement　　 B. By eating unpolluted food

C. By drinking unpolluted water　　 D. By taking them to a separated place

4.The most effective way of avoiding cholera is ____.

A. seeing doctors as soon as possible

B. fighting against it

C. paying attention to the eating and drinking

D. taking vaccine immediately

高三英语阅读理解中等难度题查看答案及解析

Food experts say washing could spread the germs on your turkey in the kitchen sink or nearby food. But it's been a challenge trying to convince cooks to stop rinsing （冲洗）off raw poultry. Germs that can make people sick are common in the guts of healthy poultry and are legally allowed to be on raw turkey and chicken. The assumption is that nobody eats their poultry raw, and that thorough cooking will kill the bacteria.

The do — not — wash raw poultry advice from the USDA is relatively new and perhaps hasn't caught on because it goes against the common belief that washing makes things clean, said Chapman. Benjamin Chapman, a study author and food safety expert at North Carolina State University, said the instinct to wash raw poultry goes back at least decades when people relied more on visual clues to spot problems with poultry. Meanwhile, washing hands and surfaces are also important.

But food preparation is a complicated act, and germs from poultry can be spread even if it's not washed, especially when birds are removed from packaging.

The USDA-funded study stresses that point. Researchers sprayed raw chicken with a harmless strain of E. coli （大肠杆菌）and watched volunteer cooks at test kitchens. Among those who washed their raw chicken, about a quarter ended up spreading the bacteria to their lettuce. But even some of those who did not rinse the chicken got germs on the lettuce. And there are other opportunities for germs to survive on turkeys: melting and cooking.

To ensure a bird is thoroughly cooked, they say to use a thermometer to check that the deepest and thickest parts of it have reached 165 degrees. Even after the meal is cooked, you aren't out of the danger zone. To keep turkeys and other leftovers safe, experts say they should be refrigerated after two hours.

1.People don't accept USDA's advice because____.

A.the advice is relatively new

B.cleaning seems more trustworthy

C.cooks clean the turkey before cooking it

D.heat can kill most germs and no one eats raw food

2.What can be concluded from Paragraph 4?

A.Food packages carry germs.

B.Hands and surfaces are easy to get E. coli.

C.Germs from a turkey can be spread whether it is washed or not.

D.Multiple methods should be applied to food to get rid of germs.

3.Which way may help to cook a turkey safely?

A.Rinse off the turkey before it is heated.

B.Keep the turkey away from the lettuce and refrigerator.

C.Wash hands and packages before taking out the turkey.

D.Use a thermometer to check the temperature of the turkey.

4.From which section of a magazine is the text probably taken?

A.Culture. B.Science.

C.Education. D.Medicine.

高三英语阅读理解困难题查看答案及解析

Just as some experts say, shopping by television will never take the place of shopping in ______ stores, because many people find shopping at a store ______ great enjoyment.

A. a; the       B. the; a           C. a; /             D. /; a

高三英语单项填空中等难度题查看答案及解析

Experts say that it is not easy to get used to life in a new culture. "Culture shock" is the term specialists use when talking about the feelings that people have in a new environment. "There are three stages of culture shock," say the specialists. In the first stage, the newcomers like their new environment. Then, when the fresh experience dies, they begin to hate the city, the country, the people, and everything else. In the laststage, the newcomers begin to adjust to their surroundings and, as a result, enjoy their life more. 

There are some obvious factors in culture shock. The weather may be unpleasant. The customs may be different. The public service systems the telephone, post office, or transportation may be difficult to work out. The simplest things seem to be big problems. The language may be difficult.

Who feels culture shock? Everyone does in this way or that. But culture shock surprises most people. Very often the people having the worst culture shock are those who never had any difficulties in their home countries and were successful in their community. Coming to a new country, these people find they do not have the same established positions. They find themselves without a role, almost without an identity（身份）。

They have to build a new self image.

Culture shock gives rise to a feeling of disorientation (迷惘). This feeling may be homesickness. When homesick, people feel like staying inside all the time. They want to protect themselves from the strange environment, and create and escape inside their room for a sense of security. This escape does solve the problem of culture shock for the short term, but it does nothing to make the person familiar with the culture. Getting to know the new environment and gaining experience are the long term solutions to the problem of culture shock.

1.The main purpose of the text is____________________

A. to take pity on the homesick

B. to share his feeling about staying abroad

C. to introduce the knowledge of culture shock

D. to encourage and cheer up the culture shock sufferers

2.What does the expression "adjust to" in the first paragragh probably mean?

A. Get used to    B. Get tired of    C. Protect    D. Appreciate

3.If one feels homesick, he should____________________

A. stay inside all the time for safety

B. phone his parents or friends in his home country for comfort

C. work hard to build a new self image

D. get to know the new surroundings and gain experience

4.Which of the following facts about culture shock is true?

A. The successful ones in their community have less difficulty in a foreign environment.

B. Culture shock doesn't include such factors as customs, one's native language and so on.

C. Culture shock gives rise to the feeling of being lost.

D. The specialists going abroad won't experience the stages of culture shock

高三英语阅读理解中等难度题查看答案及解析

17．---The weather repot says the temperature is going to drop sharply. Do remember to put on more clothes.

--- __________

高三英语单项填空简单题查看答案及解析

Experts say there are about 6，500 languages spoken throughout the world.But the United Nations estimates that about half of these languages are in danger of disappearing.

One non-profit organization seeking to save world languages is a New York-based group called Wikitongues.Officials from Wikitongues say the organization has a simple goal:to provide the tools and support that people need to save their languages.

Udell is the co-founder of Wikitongues.He said when a language disappears，many other things can go away as well.For example，parts of a community’s culture，knowledge and identity can also be lost.Because of this.Udell believes the process of bringing languages back must be done by community members themselves，“from the ground up，”he said.

“There is no way an outside organization can save someone’s language for them.”

Wikitongues was launched in 2016 as an open internet collection of world languages.The self-described“community”is operated by volunteers from around the world.The collection is in the form of language videos that people add to the Wikitongues website.

There are currently more than 400 languages and dialects represented on Wikitongues’YouTube channel.Udell says more than 1,500 people from 70 different countries have added videos to the system.

“We have people from India who record dozens of languages，which is beyond their own.”he said.

One of Wikitongues’volunteers is Kolokwe，who lives in Namibia.His native language is Subiya，however，he does not get the chance to speak his native language every day.Like many other educated people from his area，he speaks a lot of English and Afrikaans.

Kolokwe is hoping his involvement with Wikitongues call help keep Subiya and other African languages from going extinct.He wants the world to know about his language.But his goal goes beyond just sharing his language with others through video.He is also working to create a dictionary and language teaching materials that can be used in schools.

1.What is tile result of languages disappearing?

A. People are uncertain about who they are.

B. All the customs and beliefs are still existing.

C. People can not communicate with each other.

D. The community becomes more independent.

2.Which of the following is true of Wikitongues?

A. It was founded by the United Nations.

B. Officials from it want to make money.

C. It contributes to saving languages.

D. 1500 languages are uploaded on its website.

3.Why is Kolokwe involved in volunteering?

A. He has no chance to speak his native language.

B. He dislikes speaking English and Afrikaans.

C. He wants to stop his native language dying out.

D. He hopes to teach his language in school himself.

4.What can we infer from the opinion of Udell?

A. The majority of languages have been saved.

B. Wikitongues can save languages disappearing.

C. Internet plays a more important part than volunteers.

D. Only community members can save their own languages.

高三英语阅读理解困难题查看答案及解析

Experts say there are about 6，500 languages spoken throughout the world. But the United Nations guesses that about half of these languages are in danger of disappearing.

One organization seeking to save world languages is Wikitongues. It has a simple goal: to provide the tools and support that people need to save their languages. When a language disappears, many other things can go away as well. For example, parts of a community's(社区的)culture. knowledge and identity can also be lost.

Because of this, Udell. co-founder of Wikitongues. believes the process of bringing languages hack must be done by community members themselves. he said. "There is no way an outside organization can save someone's language for them.”

Wikitongues was started in 2016 as an open Internet collection of world languages. The self-described "community" is operated by volunteers from around the world. The collection is in the form of language videos that people speaking the languages add to the Wikitongues website.

Udell says saving languages does count. There are many examples of languages that disappeared but later returned to use. "Hebrew went extinct(灭绝的)in the 4th century BC, and was revived(复兴)in the 1800s. Now once again，it's the mother tongue of half of the world's Jewish population.”Another example is a Native American tribe.　 The tribe's language went extinct in the 1940s. But the tribe was able to successfully build up a "language recovery" in recent years.

One of Wikitongues' volunteers is Theron Kolokwe. who lives in Namibia. His native language is Subiya. which is spoken by about 30.000 people.

"I want the world to know about my language,” Kolokwe said. But his goal goes beyond just sharing his language with others through video. He is also working to create a dictionary and language teaching materials that can be used in schools.

1.What does Udell consider important in saving languages?

A. Gathering language information. B. Relying on the language speakers.

C. Setting up an outside organization. D. Combining languages with culture.

2.How does Wikitongues help save languages?

A. By getting language videos from its speakers collected.

B. By building an online dictionary for each language.

C. By creating a real-life community for its speakers.

D. By requiring volunteers to learn new languages.

3.What do the examples in paragraph 5 suggest?

A. The achievements of Wikitongues. B. The influences of languages on life.

C. The significance of saving languages. D. The difficulty with language recovery.

4.What can be a suitable title for the text?

A. Wikitongues Is Struggling to Spread Languages

B. Wikitongues Starts a Language Learning Website

C. Wikitongues Is Bringing Old Languages Back to Life

D. Wikitongues Seeks to Save World's Dying Languages

高三英语阅读理解困难题查看答案及解析