年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:高中英語 來源:2012-2013學(xué)年安徽渦陽四中高二下期第三次(期末)質(zhì)檢英語卷(帶解析) 題型:閱讀理解
Since the beginning of history, man has been attracted by the idea of living forever, of winning the fight against death and disease. So far, this has only remained a dream. Many people have wondered whether it would be possible to find a way to preserve human bodies, and what would be the best way.
It has long been known that meat of fruit can be kept fresh for long periods by freezing; in ancient China, for example, food was stored with ice to keep it fresh. This method could also be useful for preserving humans.
However, most living beings that exist under warm conditions die when frozen. This is because of the harmful effects of freezing ice crystals(晶體), which not only are larger than the volume(體積) of the water originally in the cells, but also form sharp cutting shapes that harm the cells.
In the 1940s Dr B.J. Luyet and a group of scientists in England were working on the problem of freezing cells without damaging them. Since the harm caused by ice crystals was the main cause of damage, Luyet suggested removing some or all of the water from the cells before freezing them.
Using living cells form chicken, Luyet and his assistants discovered that they could partly dry the chicken cells, using a mixture of the white part of an egg and glycerin (丙三醇). Some success was obtained. The chicken cells were dried, frozen for a period of time, and then carefully unfrozen. Almost all the cells recovered when they reached normal temperatures.
Since then, the cooling of whole animals to a temperature far below freezing point for later unfreezing has become more of a possibility, and the glycerin method would probably be used to accomplish this. When this can be done completely and successfully, science will have moved much closer to its aim of freezing and storing incurable patients until the day they can be cured.
【小題1】What does the passage mainly talk about?
A.Easy but practical ways to remove water from living cells. |
B.The possibility of preserving human bodies by freezing. |
C.The practice of preserving food by freezing. |
D.The harmful effects of freezing. |
A.has already been realized |
B.was invented in ancient China |
C.has its roots in the way of storing food |
D.is widely accepted by the scientific world |
A.is harmful to living cells |
B.is the best way of preserving food |
C.reduces the volume of water in living cells |
D.is a way of removing water from living cells |
A.It is impossible to have whole animals frozen. |
B.It remains unknown how to unfreeze frozen animals. |
C.Freezing incurable patients for later treatment is still an idea. |
D.The glycerin method has already been adopted to treat patients. |
查看答案和解析>>
科目:高中英語 來源:2009年普通高等學(xué)校招生全國統(tǒng)一考試全國卷Ⅱ英語試題 題型:閱讀理解
I know what you’re thinking: pizza(比薩餅)? For breakfast? But the truth is that you can have last night’s leftovers in the a.m. if you want to.學(xué)科網(wǎng)
I know lots of women who skip breakfast (不吃早飯), and they have a ton of different excuses for doing it. Some say they don’t have time, others think they’re “saying” calories (卡路里),still others just don’t like breakfast food.學(xué)科But the bottom line is that eating in the morning is very important when you’re trying to lose weight .“Eating just about anything from 300 to 400 calories would be better than nothing at all,” says Katherine Brooking, R.D. , who developed the super-easy eating plan for this year’s “SELF CHALLENGE”. And even pizza can be healthy if it’s loaded with vegetables, and you stick to one small piece.學(xué)科Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of Southern California found that breakfast skippers have a bigger chance of gaining weight than those who regularly have a morning meal.學(xué)科網(wǎng)
So eat something in the morning, anything. I know plenty of friends who end up having no breakfast altogether, and have just coffee or orange juice. I say, try heating up last night’s leftovers – it may sound crazy, but if it works for you, do it! I find if I tell myself, “You can always eat it tomorrow.” I put away the leftovers instead of eating more that night. Try it … you may save yourself some pre-bedtime calories. And watch your body gain the fat-burning effects. 學(xué)科網(wǎng)
【小題1】The word “l(fā)eftovers” in paragraph I probably means ______.學(xué)科網(wǎng)
A.food remaining after a meal | B.things left undone學(xué)科網(wǎng) |
C.meals made of vegetables | D.pizza topped with fruit學(xué)科網(wǎng) |
A.Working women usually have breakfast in a hurry.學(xué)科網(wǎng) |
B.Many people have wrong ideas about breakfast.學(xué)科網(wǎng) |
C.There are some easy ways of cooking a meal.學(xué)科網(wǎng) |
D.Eating vegetables helps save energy.學(xué)科網(wǎng) |
A.eat something for breakfast | B.be careful about what you cat學(xué)科網(wǎng) |
C.heat up food before eating it | D.cat calorie-controlled food學(xué)科網(wǎng) |
A.who go to work early | B.who want to lose weight |
C.who stay up late | D.who eat before sleep |
查看答案和解析>>
科目:高中英語 來源:江蘇省淮安市淮陰區(qū)2009-2010學(xué)年高二下學(xué)期期末考試試題 題型:閱讀理解
Eat, drink and be merry. That’s what Spring Festival is all about. But there are millions of people, too, who love to let happiness go up in smoke.
Offering cigarettes to guests is a traditional Chinese way of showing respect to them. A cup of tea and cigarettes are perhaps the most common way of welcoming a guest in China, especially during festive occasions.
No wonder, 40 percent of the people surveyed(調(diào)查) recently said they would smoke at least twice the usual number of cigarettes during the Spring Festival because of all those gatherings and parties. Only 20 percent of the respondents said they would refuse a cigarette when offered one. Why can’t the others do the same? Because they could be seen as being rude, said more than half in the respondents. 15 percent feared they could be taken as “someone who cannot get along well with others”.
The Think-tank Research Centre for Health Development and sohu. com survey shows 61 percent Chinese think offering a cigarette is useful for socialising, and 52 percent have offered cigarettes to others. The study surveyed 3,800 people, and 64 percent of them were men.
One-third of those surveyed were smokers, out of which 57 percent said they couldn’t give up smoking because of the offering-and-accepting culture. “People have accepted offering cigarettes as an effective way of making friends,” research centre director Wu Yiqun says.
China has more than 350 million smokers, catering to the tobacco market that is worth 500 billion yuan. “The survey shows we still have a lot of work to do,” Wu says. “It is time to let people know that offering a cigarette is a bad habit and it should be given up immediately.”
59. The passage is written with the purpose of ________.
A. telling us a custom about the Chinese Spring Festival
B. introducing a way to make friends with Chinese
C. stopping smoking during the Chinese Spring Festival
D. telling us that offering cigarettes is a bad habit
60. The third paragraph mainly tells us ________.
A. the fact that smokers are greatly increasing during the festival
B. the reason why refusing cigarettes is acceptable
C. the fact that many people have to smoke more cigarettes during the festival
D. it is rude to attend parties without smoking cigarettes
61. Which of the following may NOT be the reason that makes many people fail to refuse the offered cigarettes?
A. It’s impolite to refuse. B. Smoking is harmful for non-smokers.
C. They want to be friendly D. It’s a kind of social habit.
62. The writer mentions the 500 billion yuan tobacco market because ________.
A. the tobacco market is not developing smoothly
B. the writer thinks that smoking wastes a lot of money
C. smoking is helpful to the tobacco market
D. the tobacco market attracts too many smokers
查看答案和解析>>
科目:高中英語 來源:2012-2013學(xué)年河南靈寶第三高級(jí)中學(xué)高二上第一次質(zhì)量檢測(cè)英語試卷(帶解析) 題型:閱讀理解
Every ten years there is a national census (人口普查)to count the number of people. The Census Office asks every household to answer questions on a census form.
The census counts...
● the number of people in each area
● the numbers of men and women and whether they are single, married, widowed or divorced
● how many children there are, how many teenagers, people in their twenties, thirties, forties... retired people and so on
The census counts people by...
● the kind of housing they live in
● the country in which they were born
● the kind of job they do and how they travel to work
Some uses of the census:
Housing: to work out present and future needs we must know how people are housed now, and the sizes and ages of their families.
Hospitals, schools and other local services: the size of annual grants made by the Government to these services depends largely on the numbers and needs of people in the area. Many of the figures come from the census.
Planning: the census shows how many people have moved from one area to another and how the local workforce is changing. This information is used when factories, offices, shops, public transport and places for leisure are being planned.
In strict confidence
The census is taken in order to provide figures about the nation as a whole; it does not give information about any named person, family or household.
Names and addresses are needed to take the census accurately, but they are not fed into the computer. After the census, the forms are locked away and will not be released to anyone outside the Census Office for 100 years.
The answers you give on your census form will be treated in strict confidence. NO one outside the Census Office will see your completed form. Everyone working on the census is sworn to secrecy and can be charged if he or she improperly reveals information.
【小題1】The writer is mainly ________ in this passage.
A.persuading people to support census |
B.giving information about the importance and practice of census |
C.showing the government’s determination in conducting census |
D.warning people not to provide inaccurate information |
A.how many houses you have | B.how old you are |
C.what your job is | D.how much money you have |
A.the size of hospitals in the area |
B.the types of public transport in the area |
C.the number of people who work in the area |
D.the use of power in the area |
A.the information is not fed into a computer |
B.the census gives information about the whole country |
C.the people who don’t work on the census will not see the completed forms |
D.it is illegal for people to disclose the confidential information on census |
查看答案和解析>>
科目:高中英語 來源:2013-2014學(xué)年湖南省長(zhǎng)沙市高三10月第二次月考英語試卷(解析版) 題型:其他題
Directions: Read the following passage. Answer the questions according to the information given in the passage and required words limit. Write your answers on your answer sheet.
The tasty cream-filled golden sponge(海綿) cakes have been an American favorite for decades. These are just a few of the sugary treats made by the beloved Hostess brand. But after more than 80 years, Americans have to say goodbye to these iconic (標(biāo)志性的) desserts. Early last week, Hostess announced it is going out of business.
"Many people have worked unbelievably long and hard to keep this from happening," said Hostess CEO Gregory F. Rayburn. "Hostess Brand has no other alternative than to begin the process of getting down and preparing for the sale of our iconic brands." Along with Twinkles (奶油蛋糕) and Wonder Bread, cupcakes and other sugary treats may disappear from the shelves.
In the past decade, Hostess has experienced difficulties with its management and high labor costs. The company had money troubles in the past, but this time there was no way to recover. Along with the loss of sugary treats comes the loss of nearly 20,000 jobs. Hostess fans hope that another company will buy out the Hostess.
The downfall of Hostess is due not just to the company's financial problems, but also to a changing America. Our country's tastes and lifestyles are not the same as they were eighty years ago. Americans have become more health-conscious, and they are demanding more healthful food products. As a manufacturer of high-calorie products, Hostess does not fit into this new way of life.
To make matters worse for Hostess, Americans do not eat as much bread as they once did. "More and more people are choosing one-dish meals," said Harry Balzar. "The tradition of bread as a side dish is going out." Americans are finding alternatives to their morning toast too. Instead they’re choosing quick snacks like yogurt and energy bars.
Will Twinkles become an image of a bygone(過去的) America? Hostess fans hope that it will secure its spot on supermarket shelves for years to come. We can only wait. And maybe eat fruit for dessert instead.
1.What caused Hostess to be in trouble in the last 10 years? (no more than 7 words)
_____________________________________________________________________
2.Can you list three disappearing sugary desserts by Hostess? (no more than 5 words)
_____________________________________________________________________
3.What makes Hostess's situation more severe? (no more than 9 words)
_____________________________________________________________________
4.What's the hope of Hostess fans about this spongy snack's future? (no more than 20 words)
_____________________________________________________________________
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com