George Eberhardt turned 107 last month, and scientists would love to know how he and other older folks like him made it that far. So he's going to hand over some of his DNA.
He's one of 100 centenarians(百岁老人) taking part in a project that examines some of the oldest citizens with one of the newest scientific tools: whole-genome sequencing(全基因组测试), the deciphering of a person's complete collection of DNA.
Scientists think DNA from very old healthy people could offer clues to how they have lived so long. And that could one day lead to medicines to help the rest of us stay disease-free longer.
"It's very hard to get to 105 without some genetic advantages," says Dr. Thomas Perls, a geriatrics(老年医学) expert at Boston University. Dr.Perls is helping find centenarians for the Archon Genomics X Prize competition. The X Prize Foundation, best known for a spaceflight competition, is offering $10 million in prize money to researchers who decipher the complete DNA code from 100 people older than 100. The contest will be judged on accuracy, completeness and the speed and cost of sequencing.
Mr. Eberhardt played and taught tennis until he was 94and says he's participating in the X Prize project because he's interested in science and technology. It's not clear his genes will reveal much. Nobody else in his extended family reached 100, and he thinks only a couple reached 90, he said in a telephone interview.
So why does he think he lived so long? He attributes it to 70 years of marriage to his wife, Marie. She in turn cites his "intense interest in so many things" over a lifetime, from building radios as a child to pursuing a career in electronics research.
But scientists believe there's more to it, and they want to use genome sequencing to investigate. Dr. Richard Cawthon of the University of Utah, who is seeking longevity genes by other means, says it may turn up genetic features that protect against multiple diseases or that slow the process of aging in general.
| A．Separating. | B．Interpreting. |
| C．Gathering. | D．Comparing. |
| A．How many genes are studied |
| B．How precise the sequencing is |
| C．How fast the research is finished |
| D．The number of researchers |
| A．what the Archon Genomics X prize competition is about |
| B．the significance of studying the genes that lead to longevity |
| C．how whole-genome sequencing is applied to the study of genes |
| D．the genetic advantages the centenarians have |
| A．He doesn’t have any genetic advantages. |
| B．Most of his family have been long-lived. |
| C．His genes don’t reveal much about why he has lived so long. |
| D．He enjoyed doing electronics research. |
| A．Comparing One Hundred Centenarians |
| B．Who Will Win the Archon Genomics X Prize Competition? |
| C．A New Technology--- Whole –Genome Sequencing |
| D．Is the Secret to a Long Life in the DNA of Centenarians? |
It is important that you make a good impression at work. If you make a good impression on your boss, he or she is more likely to give you more responsibilities which can lead to promotions (晋级) and raises. Here are some ways to make a good impression at work.
Use Proper Office Etiquette (礼仪)
Using pr
oper manners will help you make a good impression on your boss and also your co-workers. Office etiquette includes everything from the proper way to e-
mails to knowing when, where, and how to use your cell phone at work.
Face up to Your Mistakes
When you make a mistake at work, which everyone inevitably (不可避免地) does at some points, face up to it. Don’t ignore your error or place the blame on others. Take responsibility and come up with a solution to fix your mistake. Your boss may not be too happy about it, but she will at least be impressed with your response.
Know to Call in Sick
Do you think coming to work when you are sick instead of staying at home will impress your boss? Reasonable bosses know that a sick employee not only is unproductive but also he or she can spread an illness around the office. Call in sick when you are ill.
Come Through in a Crisis
When the unexpected happens at work, who will make a better impression on the boss? Of course it’s the employee who deals with the crisis quickly and effectively.
What would be the best title for the passage?
A. How to Use Good Etiquette
B. How to Deal with Mistakes at Work
C. How to Be a Good Worker in the Future
D. How to Make a Good Impression at Work
What should you do if you make a mistake at work?
A. Try to ignore the mistake.
B. Put the blame on others.
C. Think out a solution to your mistake.
D. Leave the company as soon as possible.
According to the writer, when you are ill you’d better _________.
A. go to work on time as usual
B. stay at home without telling others
C. go on working but stay away from others
D. stop working and ask for a leave
Who will make good impressions on the boss?
A. Employees who deal with the crisis quickly and effectively.
B. Employees who often make mistakes.
C. Employees who go to work though they are ill.
D. Employees who often use their cell phones at work.
It is often said that politeness costs nothing. In fact, it seems that a little more courtesy could save businesses ￡5 billion every year.
Frequently hearing the phrase “thank you” or “well done” means the same to staff as a modest pay rise, researchers say. Praise and encouragement also makes employees more likely to work hard and stay in their jobs, saving on the cost of finding replacements.
A third of 1,000 workers surveyed by the famous firm White Water Strategies said they did not get thanked at all when they did well——and a further third said they were not thanked enough, meaning they were less likely to put themselves into work and were more likely to look for employment elsewhere.
The final result is around ￡5.2 billion in lost productivity from employees who would raise their interests in work if they felt more appreciated, White Water claimed. According to the company, praising staff has the same motivational kick as a 1 per cent pay rise – and works out much cheaper for bosses.
Three out of four employees said that regular acknowledgement(认可) by their bosses was important to them, but only a quarter said they were actually given as much praise as they felt they needed. The survey found that those blue-collar and manual(体力的)workers were less likely to be given any recognition for doing well.
In regional terms, Scottish staff felt most undervalued. Four out of ten workers said they were never thanked and eight out of ten said they would like more praise. However, workers in the North-East are less impressed by being praised by the boss, as only 69 per cent said they felt the need to be told “well done” regularly. Older employees and women need the most praise, according to psychologist Averill Lemmon. The underlined word “courtesy” (in Paragraph1) probably means “ ”.
| A．politeness | B．authority | C．pay rise | D．replacement |
The survey done by White Water Strategies shows that .
| A．giving workers a pay rise can’t make them work hard |
| B．most workers not praised have no interest in their work |
| C．workers who got few praise are more likely to change their jobs |
| D．sometimes politeness and encouragement cost nothing |
Which of the following statements agrees with the passage?
| A．Scottish bosses don’t like praising their workers very much. |
| B．Older workers and women need more pay rise. |
| C．Most workers don’t need any praise. |
| D．Blue collar workers get more praise. |
What would be the best title for the passage?
| A．Politeness is very important in our daily life |
| B．The words “well done” are useful as a pay rise |
| C．Several ways to make workers work hard |
| D．Workers and their bosses |
Here’s an amazing way to get a hard-boiled egg into a bottle, even though the mouth of the boiled is smaller than the egg! What’s more, you don’t even need to touch the egg to get it to go in!
For this experiment you will need:
·a hard-boiled egg
·a glass bottle with a mouth just slightly smaller than the egg (a fruit-drink bottle works well)
·a 8-cm by 8-cm(3-inch by 3-inch)piece of newspaper
·a match
Remove the shell from the egg. Set the egg on the mouth of the bottle to see that the egg does not fit through the mouth.
Light the paper. Remove the egg from the mouth of the bottle and drop the burning paper into the bottle. Before the fire goes out, set the egg back onto the mouth of the bottle. Within a few seconds the egg will squeeze(挤) through the mouth and into the bottle.
As it entered the bottle, the egg may have broken into pieces. This happens when the diameter(直径) of the egg is more than about 0.5 cm(about 3/16 inch) larger than the diameter of the bottle’s opening.
Why does the egg slide into the bottle, even though no one is pushing it? Because the pressure of the air is pushing it. Before the burning paper is put into the bottle, the pressure of the air inside is the same as outside. The burning paper, however, heats the air inside. This causes the air inside to expand. When the egg is placed on top of the bottle, it seals(封住) the bottle. When the fire goes out, the air inside cools. As it cools, the air contracts(紧缩), and the pressure of the air inside becomes less than the pressure outside. Then, the higher outside pressure pushes the egg into the bottle!The best title of this passage can be .
| A．An interesting story | B．The pressure of the air |
| C．Egg in a bottle | D．Egg, bottle and match |
What don’t you need in this experiment?
| A．Eggs. | B．Water. | C．Bottles. | D．Paper. |
Why will the egg break into pieces while entering the bottle?
| A．Because of the burning paper. |
| B．Because the diameter of the egg is too larger than that of the bottles opening. |
| C．Because it is cool inside the bottle. |
| D．Because the pressure of the air inside is larger. |
What is the most important to get the egg into a bottle?
| A．A match. | B．A fruit-drink bottle. | C．The pressure of the air. | D．The burning paper. |
Welcome to WeKnowDiets.com. We have compiled(汇集)the most comprehensive database of information for people who are looking for a trimmer body and healthier lifestyle. There are now thousands of Weight-Loss Products and Diet Programs available to choose from－that can be a little confusing. Our goal is to give you a quick snapshot(简介)of what options are available to you. We will inform you of the hottest new ingredients and which products and programs bring you the most quality and best results.
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This diet pill, claims to provide weight loss that “won’t be easy”. This product does not seem to promise particularly fast results, and instead emphasizes gradual weight loss. The accompanying book is intended to act as a companion to the weight-loss product. MORE
Bikini Boot Camp－14 days for a bikini body
It is a customized(需要定制的)back-to-basics system, which, regardless of its name, is actually about putting “fun” back into exercise while eating in a balanced way. The developers of this diet system make it accessible to everyone by bringing it into people’s homes－in both a book and an online-based plan. MOREThe passage is intended for those .
| A．with a slim figure | B．with high blood pressure |
| C．who are very fat | D．who seek for a healthy diet |
Which of the following emphasizes gradual weight loss?
| A．NuPhedrine. | B．Miracle Fat Burning Cream. |
| C．Alli Diet Pill. | D．Bikini Boot Camp. |
Which of the follwing is produced in the form of thick liquid?
| A．NuPhedrine. | B．Miracle Fat Burning Cream. |
| C．Alli Diet Pill. | D．Bikini Boot Camp. |
Bikini Boot Camp is different from the others in that .
| A．ordinary people can afford it | B．it is a diet program full of fun |
| C．you eat less but exercise more | D．it can save you much money |
America has been experiencing the longest economic increase in its history. Incomes have risen, unemployment has fallen, and cities such as New York are bursting with new office buildings.
But just a short walk from Manhattan’s skyscrapers, George Brown sits on the side-walk, cooking a lunch of rice and bits of fish over a can of cooking fuel.
Brown is homeless——one of the 2.3 million people in the US who end up on the street.
During the day, Brown collects aluminum cans and sells them for five cents a piece. At night, he sleeps on the street.
“I have been on the street about eight or nine years, something like that,” said the 62-year-old former construction worker.
Brown admits he had problems with alcohol and has smoked cocaine. But he said he still wants a more stable housing arrangement. He could afford it just with the money he earns by collecting cans and small pieces of metal, if only truly low-income housing were available.
However, he sees no hope of finding affordable housing in New York.
With the strong economy and unemployment down, beautiful housing is being built to meet demand.
A US report shows rents in New York City rose more than 27 per cent, from ＄549 to ＄700 a month.
One of the side effects of the strong economy is that rents have been going up.
The majority of people who experience homelessness really just need some affordable housing help.
But few housing companies are building for the poor. Many small apartments in the city now rent for ＄1,500 a month or more.
Brown, the homeless New Yorker, said he has a daughter who lives in the city but he rarely sees her. She is angry about his drinking and won’t allow it in her house.
Smiling, he said he also has seven grandchildren whom he’d like to see more often. “All I’ve got to do is clean up my act,” he said.What kind of life does George Brown lead?
| A．Stable. | B．Dangerous. | C．Hard. | D．Comfortable. |
It can be inferred from this passage that .
| A．America is short of housing companies |
| B．the poor can’t benefit from the increasing economy |
| C．poor people in America will become rich |
| D．housing companies will build more houses for the poor |
The underlined part “clean up my act” in the last paragraph means “ ”.
A. remove my cans B kick my bad habits
C. make a lot of money D. see my grandchildrenWhich part of a newspaper is the passage possibly taken from?
| A．Society. | B．Science. | C．Arts. | D．Business. |
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