题目
题型:不详难度:来源:
In the middle of winter, when snow is falling in many parts of the United States, scientists have sounded a warning to people who plan to spend many hours in the sun this summer.The warning: The sun"s summertime rays are more dangerous than once thought.
A team of scientists from 80 nations recently reported to the United Nations that a layer of ozone(臭氧层)in the atmosphere, which protects humans from harmful levels of ultraviolet(紫外线)radiation, will be thinner over the United States this summer.The thinner layer allows more ultraviolet rays from the sun to reach Earth.The extra amount of ultraviolet radiation could cause an increase in the number of cases of skin cancer.
Scientists first became concerned about the layer in the mid-1980s when a hole was discovered in the layer above Antarctica during the winter.The hole was caused in chemicals used in refrigerators and air conditioners.When these chemicals are sent out into the atmosphere, they produce gases that destroy the ozone.
Concern about the protective ozone layer rose more recently when data from satellites and ground stations showed that ozone levels were dropping over areas other than Antarctica.Low ozone levels were recorded in the spring and summer over the United States and over other populated areas in the world.
Although many countries have already begun stopping the use of ozone-destroying chemicals, the new findings are expected to advance the timetable for a total ban of the chemicals.
小题1:The scientists have observed the ozone layer ______.
A.since 1980 | B.since last winter |
C.for more than 20 years | D.for about one year |
A.do a lot of good to human beings in many ways |
B.protect humans from diseases caused by bad weather |
C.do a lot of harm to human beings in the summer-time |
D.protect humans from harmful levels of ultraviolet radiation |
A.above Arctic during the winter in the mid-1980s |
B.above Antarctica during the winter in the mid-1980s |
C.over somewhere in the north of the equator in 1980 |
D.over the USA in the summertime in the mid-1980s |
A.the changeable weather | B.ozone-destroying chemicals |
C.chemicals from refrigerators | D.chemicals from air conditioners |
答案
小题1:C
小题2:D
小题3:B
小题4:B
解析
核心考点
试题【Damage to Ozone Layer Gets Worse In the middle of winter, when snow is falling i】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
I also noticed that all toucans have different beaks! They also have very long unique beaks with an extremely long tongue. It struts(大摇大摆地走) around with its chest sticking out and beak pointed forward. The toucan is a beautiful bird! The beak has a red tip (different shades on every one), but sometimes there is a little turquoise on the bottom half. Then, right where the beak separates there is a splotch of yellow. And the rest of the beak is green. The toucan takes very much pride of itself.
The toucan eats fruit and seeds. The ramphastidae(the toucan family) is known for its long beak, and 37 species. Toucans also feed on insects, small lizards, bird nestlings and eggs. They nest in hollow trees where they incubate and care for their young.They are found in the woody areas.
Of the various toucan facts, here is an odd one. Citizens of Central and South America associate the toucans with evil spirits. They think the birds can be the personification of evils. Where couvades(父代母育) is practiced, the father of a new child must not eat toucan flesh as it is believed to bewitch the new-born child. Yet the toucan can also be a tribal totem(图腾). So the medicine men use it as a symbol to fly to the spirit world.
60. 小题1:Which of the following words is NOT suitable to describe toucans?
A.Intelligent | B.Confident | C.Dangerous | D.Colorful |
A.where toucans strut around | B.how toucans get food |
C.what toucans look like | D.when toucans lay eggs |
A.Hatch eggs | B.Take cover | C.Gather strength | D.Keep warm |
A.all citizens of Central and South America are afraid of toucans |
B.the toucans can also be used as medicine to cure diseases |
C.a new child must not eat toucan flesh because it is poisonous |
D.some people believe toucans can bring them misfortune |
Remember your mother’s age. As children, we often do not think of our mother as having an age. Even when we become conscious of her as an individual, age does not change our view; she is still our mother. Knowing our mother’s age, not just in numbers of years but in terms of her psychological and physical state, often helps us to understand her better.
Listen to your mother. I have found that sometimes the things my mother told me long ago are remarkably useful. If your mother knows that you respect her point of view, even if you do not share it, it will help her feel close to you.
Remember that your mother has a past. A key step in managing our relationship with our mother is to find out about her early life.In learning about our mother’s past, we know that it can encourage us to think about her whole life.
Ask your mother about your childhood history. My grandparents died when I was young. If you are fortunate enough to have living family, think of your life as a jigsaw puzzle and ask as many questions as you can to put the picture together. Understanding your roots and your childhood can help you know more clearly who you are, as part of a family which you share with your mother.
Remember that managing your mother is really about managing yourself. Taking any measure to managing our mother is the issue of how we manage ourselves. No matter how difficult we find her, it is important to remember that it is not her behavior itself that is causing us discomfort, but the way we feel about her behavior. We should follow the way of her life. At the heart of managing your mother is being able to accept your flawed self. Only then are you able to accept your mother-----with all her failings.
64. 小题1:What does the underlined phrase “a jigsaw puzzle” mean?
A.拼图玩具 | B.浏览迷宫 | C.填充字谜 | D.游戏人生 |
A.You will have a better relationship with your mother if you respect her opinion. |
B.Knowing your mother’s age is a useful piece of advice. |
C.The key measure of managing our mother is how we manage ourselves. |
D.It is unreasonable to expect our mother to change totally from the way she was brought up. |
A.to give information about how you think of your mother |
B.to improve the relationship with your mother |
C.to keep a sense of humor about your mother all day long |
D.to accept your mother-----with all her failings |
First of all, do things step by step. It is not good to listen to something beyond your level. Better choose a suitable course and start with the first book. Don’t go on to the second book until you are sure you understand the first one.
Secondly, keep studying one course. Don’t change books often. Never let your attention be attracted by another course just because it seems to be more popular.
Thirdly, listen to the English news over the radio from time to time. Better look through the news stories in Chinese-language newspapers first. That will make it easier for you to understand the English news on the radio.
Fourthly, if you have time, listen to some interesting stories in Special English from the V.O.A or other listening materials of the same level as those of your textbook.
76. 小题1:What does the passage mainly talk about?
A.How to speak English correctly. | B.How to read fast. |
C.How to improve your writing skills. | D.How to improve your listening skills. |
A.Easy for you. | B.Too difficult for you. |
C.Just all right for you. | D.Neither difficult nor easy for you. |
A. Practise speaking very often.
B. Read the news stories in Chinese-language newspapers first.
C. Listen to some interesting stories in Special English from the V,O.A.
D. Ask others to explain it to you.
79. 小题4:How many pieces of advice does the writer give?
A.Four | B.Three. | C.Two. | D.Many. |
A.English learners may have difficulty in understanding native English. |
B.To improve our listening skills, we should choose popular courses from time to time. |
C.Chinese-language newspapers are good for us to understand the English news on the radio.. |
D.We can only improve our listening skills step by step. |
There"re many reasons for this--typically,men take more risks than women and are more likely to drink and smoke but perhaps more importantly, men don’t go to the doctor.
“Men aren"t seeing doctors as often as they should,” says Dr. Gullotta.“This is particularly so
for the over-40s, when diseases tend to strike. According to a recent survey, 95%of women aged between 15 and early 49s see a doctor once a year, compared to 70%of men in the same age group.
“A lot of men think they’re unbeatable,”Gullotta says.“They only come in when a friend drops dead on the golf course and they think, Geez, if it could happen to him …”
Then there’s the ostrich(鸵鸟)approach.“Some men are scared of what might be there and would rather not know,” says Dr. Ross Cartmill.
“Most men get their cars serviced more regularly than they service their bodies,” Cartmill says. He believes most diseases that commonly affect men could be addressed by preventive check-ups.
“Prevention is cheaper in the long run than having to treat the diseases.Besides, the final cost is far greater,it’s called premature death.”
小题1:Why does the author congratulate male readers at the beginning of the passage?
A.They can live longer than they expected. |
B.They are sure to enjoy a longer and happier life. |
C.They have lived long enough to read this article. |
D.They are more likely to survive serious diseases now. |
A.Men drink and smoke much more than women. |
B.Men don’t seek medical care as often as women. |
C.Men are more likely to suffer from deadly diseases. |
D.Men aren’t as cautious as women in face of danger. |
A.it could happen to me,too. |
B.it would be a big misfortune. |
C.I should avoid playing golf. |
D.I should consider myself lucky. |
A.A casual attitude towards one’s health conditions. |
B.A new treatment for certain psychological problems. |
C.Refusal to get medical treatment for fear of the pain involved. |
D.Unwillingness to find out about one’s disease because of fear. |
Solar astronomers do know that the sun is divided into five layers or zones.Starting at the outside and going down into the sun, the zones are the corona, chromosphere, photosphere, convection zone and finally the core.The first three zones are regarded as the sun"s atmosphere.
But since the sun has no solid surface, it is hard to tell where the atmosphere ends and the main
body of the sun begins.
The sun"s outermost layer begins about 10000 miles above the visible surface and goes outward for mllions of miles.This is the only part of the sun that can be seen during an eclipse(日食) such as the one in February 1979.At any other time, the corona can be seen only when special instruments are used on cameras and telescopes to shut out the glare of the sun"s rays.
The corona is a brilliant, pearly white, filmy light, about as bright as the full moon.Its beautiful rays are a sensational sight during an eclipse.The corona"s rays flash out in a brilliant fan that has wispy spikelike(一束束穗状) rays near the sun"s north and south poles.The corona is thickest at the sun"s equator.
The corona rays are made up of gases streaming outward at tremendous speeds sad reaching a temperature of more than 2 million degrees Fahrenheit.The rays of gas thin out as they reach the space around the planets.By the time the sun"s corona rays reach the Earth, they are weak and invisible.
小题1:Matter on the aim can exist only in fee form of gas because of the sun"s ___.
A.size | B.age | C.location | D.temperature |
A.corona | B.chromosphere | C.photosphere | D.core |
A.hotter | B.clearer | C.thinner | D.stronger |
A.The remaining layers of the sun. |
B.The evolution of the sun to its present form. |
C.The eclipse of February 1979. |
D.All the above. |
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