题目
题型:不详难度:来源:
Many of the most damaging types of weather begin quickly, strike suddenly, and disappear rapidly, destroying small areas while leaving neighboring areas untouched.Such event as a tornado struck the northeastern part of Edmonton, Alberta, in July 1987.Total damages from the tornado went beyond $250 million, the highest ever for any Canadian storm.
Traditional computer models of the atmosphere have limited value in predicting short-lived local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to study carefully the slight atmospheric changes that come before these storms.In most nations, for example, weather-balloon observations are taken just once every twelve hours at places separated by hundreds of miles.With such limited data, traditional forecasting models do a much better job predicting general weather conditions over large areas than they do forecasting specific local events.
Until recently, the observation intensive method needed for exact, very short-range forecasts, or “Nowcasts,” was not possible.The cost of equipping and operating many thousands of conventional weather stations was extremely high, and the difficulties concerned in rapidly collecting and processing the weather data from such a network were hard to overcome.
Fortunately, scientific and technological advances have overcome most of these problems.Radar systems and satellites are all able to make detailed, nearly continuous observation over large areas at a lower cost.Communications satellites can send out data around the world cheaply and immediately, and modern computers can quickly collect and analyze this large amount of weather information.
Meteorologists(气象学者)and computer scientists now work together to design computer programs and video equipment able to change weather data into words and graphic displays that forecasters can understand easily and quickly.As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.
1.Why can’t traditional computer models predict short-lived local storms?
A.The weather data people collect are often wrong.
B.Detailed weather data in some small areas are not available.
C.The computers are not advanced enough to predict them.D.The computers are not used to forecast specific local events.
2.The word “Nowcast” in Paragraph 3 means ________.
A.a network to collect storm data
B.a way of collecting weather data
C.a more advanced system of weather observation
D.a forecast which can predict weather in the small area
3.What can make “Nowcasts” a reality according to the passage?
A.Scientific and technological advances. B.Advanced computer programs.
C.Computer scientists. D.Meteorologists.
4.What does the passage mainly talk about?
A.The advantages of “Nowcasts”. B.A tornado in Edmonton, Alberta.
C.The difficulty in predicting tornado. D.A great development in weather forecast.
答案
小题1:B
小题2:D
小题3:A
小题4:D
解析
核心考点
试题【Many of the most damaging types of weather begin quickly, strike suddenly, and d】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
“Migrant workers”(外来务工人员)is a familiar term for 17 -year- old Shi Jian. Her father and uncle often talk about the problems surrounding this group of people. However, Shi cares more about the children of these migrant workers.
Last year Shi’s housekeeper’s daughter had to give up her schooling in Beijing because she would not be allowed to sit the national college entrance exam. She was forced to continue her high school education in her hometown in Sichuan Province.
Shi thinks the current law is unfair for migrant workers’ children, as it prevents them from studying at public schools, unless their parents pay huge sums. So, Shi decided to do a survey of migrant workers so that she could find some solutions to help solve the problem.
In the last six months Shi has spoken to 186 migrant workers in Beijing. Her interviewees include babysitters, guards, keepers, supermarket clerks, house cleaners and construction site workers. Shi found out that 55 of them were parents. Among this group, only eight have children who attend schools in Beijing. The other 47 had to leave children with relatives in the countryside. However, 40 of the 47 would like to enroll(使入学)their children in city schools.
From her interviews, Shi found that the workers’ lowest income was 400 yuan each month. Over one - third earn a monthly wage of or below 1000 yuan. “Even schools for migrant workers’ children charge more than public schools. Moreover, parents constantly worry about these schools closing or relocating,” she explained.
Shi has recently completed a report about her survey, in which she makes a series of recommendations. “The government can set up public schools for migrants’ children equal to schools for city children. Second, to offset(弥补)migrant workers’ very low pay, public schools should offer them special rates so they can afford their children’s tuition(学费).
1. What drove Shi to do the survey of migrant workers?
A. She wanted to draw people’s attention and become famous.
B. Her housekeeper’s daughter was forced to move to her hometown to continue studying.
C. She was asked to do a survey of migrant workers as part of a school project.
D. Her curiosity about migrant workers’lives.
2. According to Shi’s survey, most migrant workers’kids ________.
A. have to help their parents support the family
B. attend schools near their parents’ working places
C. don’t live together with their parents
D. always do better in schools than children from the city
3. All of the following prevent migrant workers’ kids from attending schools in cities EXCEPT ________.
A. their parents’ low income
B. that schools for migrant workers’ children may close or relocate
C. schools’ high tuitions
D. their lack of confidence to face the fierce competitions in city schools
4. Shi suggested in her survey that ________.
A. children’s tuition should be reduced
B. more money should be collected for migrants’ children
C. more private schools for migrants’ children should be built
D. students from the city and the countryside should be encouraged to communicate more
Standard English is the formal(正式的) English that you need to use when you write in coursework or in the exam. Standard English is the form of English you learn in school. All written English should be standard—that means it should be clear enough for anyone in Britain to understand it. Standard English developed as the main form of printed English in the 15th Century. At the time, every region of Britain used to spell words differently, but printers needed a fixed spelling. Printers like Caxton chose the East Midlands dialect form which was used in London and the South East. Soon Standard English replaced(取代) all written dialect forms – the other forms of English spoken around the country. It also replaced French and Latin in law and in academic(学术的) work. In the 18th Century, people wrote dictionaries and grammar books which standardized spelling — Dr Johnson’s Dictionary of 1755 fixed many of the spellings we still use today. All written English should be Standard English — any grammar rules you learn are for Standard English and you will definitely need to learn them to avoid making mistakes in your work. The rules of Standard English mean using the correct forms of words with the correct spellings.
Avoid slang words(俚语)—words that your teachers or friends wouldn’t understand. You’ll lose marks if the examiners can’t understand what you say or write. Don’t use dialect words. Every region has words or phrases that are only used there. Don’t use them in your coursework, because you won’t be understood. Make sure you revise grammar and punctuation(标点) you have learned, and learn the list of commonly misspelled words you have made. Clichés are ideas or sayings which have been used so often that they’ve become boring and unoriginal. Phrases like, “As good as it gets” “At the end of the day” “In the fullness of time” are all clichés. So are images like, “as fierce as a lion” “as cunning as a fox”. If you use them you will sound boring and unimaginative— that could mean you lose marks for writing and speaking style. So avoid clichés.
1. What three things do you have to think about when using English?
a. no slang word or dialect b. no grammar and spelling mistake. c. no phrase
d. no cliché e. no punctuation
A. abc. B. bcd. C. ade. D. abd.
2. What is standard English?
A. the English spoken by British people.
B. the English spoken by American people.
C. the English used in London.
D. the English spoken by British people in 15th Century.
3. What is the cliché according to the passage?
A. the English full of slang words.
B. the boring ideas or sayings because of being used often.
C. the long phrases which are used often.
D. all the English which is used outside of London and the southeast of Britain.
4. Why do we need to use Standard English?
A. Because no one can understand dialect words.
B. Because there are many kinds of English in the world, we need Standard English to make communication easier.
C. Because local dialect belongs to certain region, not every one can understand it.
D. Because standard English has been used for a long time.
5. Which statement is true?
A. Written English should be formal and standard.
B. Standard English means people should use the words from Dr Johnson’s Dictionary.
C. All the spoken English should be Standard English.
D. Standard English replaced all written dialect forms in the 18th century.
The USA, New York —Whales and dolphins are facing increasing threats from climate change, according to a new report published by WWF and the Whale and Dolphin Conservation Society(WDCS).
The report “Whales in hot water?” draws attention to the growing impacts of climate change on whales. They range from changes in sea temperature and the freshening of the seawater because of the melting of ice and increased rainfalls, to a sea level rise, loss of icy polar habitats and the decline of krill populations in key areas. Krill, a tiny shrimp that is dependent on sea ice, is the main source of food for many of the great whales.
The speeding up of climate change adds greatly to trouble from other human activities, such as chemical and noise pollution, which kills some 1000 whales every day.
“Whales and dolphins have an ability to adapt to their changing environment,” said Mark Simmonds, International Director of Science at WDCS. “But the climate is now changing at such a fast pace that it is unclear to what extent whales and dolphins will be able to adjust.”
Climate change impacts are currently greatest in the Arctic and the Antarctic. According to the report, cetaceans that rely on polar, icy waters for their home and food resources are likely to be greatly affected by the reduction of sea ice cover.
WDCS and WWF are urging governments to cut global production of CO2 by at least 50 percent by the middle of this century. The latest report of the Intergovernmental Panel on Climate Change showed it was possible to stop global warming if the world’s emissions start to decline before 2015.
1. From the passage, we can learn that whales mainly feed on ______.
A. dolphins B.krill C. sea horses D. sharks
2. Which of the following has the same meaning as the underlined word “decline” (in Para 2)?
A. produce B. develop C. fall D. increase
3. In what place is climate change greatest?
A. Two polar areas. B. Asia.
C. The pacific ocean. D. Equator.
4. Which of the following is not true according to the passage?
A. Climate change will lead to the changes in sea temperature.
B. Climate change will result in the freshening of the sea water.
C. Climate change will have a bad effect on human activities and whales.
D. Human beings will forever have no ability to stop global warming
Tattoos (纹身) and body piercings (穿孔) have moved up on the trend list in recent years.
Around Western schools lots of teens are showing off new holes and “flesh ink” (纹身). As with all other subjects, the Chinese will surely have to deal with this situation with respect to their children. To get a better view of what has happened in the West, let’s sit down and hear what they say.
Tiara from Indiana:
I personally think body piercing is sickening. If there were supposed to be holes in your body, you would have been born with them. I do, however, think that ear piercing, is not wrong. There is a difference between ear piercing and belly button (肚脐) piercing. Ear piercing is not nearly as dangerous. I would be sick if someone stuck a needle in my belly button.
Lee from Illinois:
Hi! I live in Illinois. I am 23. I have 12 tattoos and three piercings. I love my tattoos and consider myself an art collector. You would be surprised at who has given me the thumbs-up on my art work. People on the street stop me to look at the tattoo on my leg. Most of them don’t know what it is. They just think the work itself is great.
Subotai from Califomia:
I’m not against self-expression, but when I see high school students getting these piercing, I really wonder. In some cases, the drive is deeper and darker than mere fashion. A friend of mine tried piercing her own tongue with a safety pin. It got infected and she had a tongue the size of a cow’s.
Jackson from Ohio:
I don’t think it’s wrong, but when people do it all over the place like their face and everything—I think that’s ridiculous (荒唐的). People who get the big dragons that cover their whole body—I don’t think that’s necessary. When I see naked chicks on guys, I think “You have no respect for women.”
1. We can infer from the passage that _________.
A. Tiara must have body piercing B. Subotai doesn’t have body piercing
C. Lee dislikes tattoos D. Jackson likes tattoos and piercing
2. Who doesn’t think tattoos and piercings are beautiful except ear piercing?
A. Jackson B. Lee C. Tiara D. Subotai
3. From the passage, we can make a conclusion that _________.
A. tattoos and piecrings are a new kind of art
B. all the teachers in the West are in favour of tattoos and piercings
C. everything is changeable as time goes on
D. it is necessary to live with different views of beauty
4. The best title for this passage is probably _________.
A. Body Art or Causing Damage
B. Doing Damage to the Young People’s Bodies
C. Young People’s Different Curiosities
D. The Latest Fashion
Today, roller skating is easy and fun.But a long time ago, it wasn’t easy at all. Before 1750, the idea of skating didn’t exist. That changed because of a man named Joseph Merlin. Merlin’s work was making musical instruments. In his spare time he liked to play the violin. Joseph Merlin was a man of ideas and dreams. People called him a dreamer.
One day Merlin received an invitation to attend a fancy dress ball(化装舞会). He was very pleased and a little excited. As the day of the party came near, Merlin began to think how to make a grand entrance at the party. He had an idea. He thought he would get a lot of attention if he could skate into the room.
Merlin tried different ways to make himself roll. Finally, he decided to put two wheels under each shoe. These were the first roller skates. Merlin was very proud of his invention and dreamed of arriving at the party on wheels while playing the violin.
On the night of the party Merlin rolled into the room playing his violin. Everyone was astonished to see him. There was just one problem. Merlin had no way to stop his roller skates. He rolled on and on. Suddenly, he ran into a huge mirror that was hanging on the wall. Down fell the mirror, breaking to pieces. Nobody forgot Merlin’s grand entrance for a long time!
1.The text is mainly about ________.
A.a strange man B.an unusual party
C.how roller skating began D.how people enjoyed themselves in the 18th century
2.People thought Merlin was a dreamer because he _________.
A.often gave others surprises B.was a gifted musician
C.invented the roller skates D.was full of imagination
3.Merlin put wheels under his shoes in order to ________ .
A.impress the party guests B.arrive at the party sooner
C.test his invention D.show his skill in walking on wheels
4.What is the main point the writer is trying to make in the last paragraph?
A.The roller skates needed further improvement.
B.The party guests took Merlin for a fool.
C.Merlin succeeded beyond expectation.
D.Merlin got himself into trouble.
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