The day after news broke of a possible revolution in physics ——particles (粒子) moving faster than light ?a scientist leading the European experiment that made the discovery calmly explained it to a standing-room- only crowd at CERN.
The physicist, Dario Auterio, did not try to explain what the results might mean for the laws of physics, let alone the broader world.After an hour of technical talk, he simply said, "Therefore, we present to you today this difference, this unusualness."
But what unusualness it may be.From 2009 through 2011, the massive OPERA detector (探测器)buried in a mountain in Gran Sasso, Italy, recorded subatomic particles called neutrinos ( 中微子) arriving faster than light can move in an empty space.The neutrinos generated at CERN are hardly detectably early.If confirmed, the finding would throw more than a century of physics into disorder.
"If it's correct, it's phenomenal." said Rob Plunkett, a scientist at Fermilab, the Department of Energy physics laboratory in Illinois."We'd be looking at a whole new set of rules" for how the universe works.Those rules would bend, or possibly break, Albert Einstein's special theory of relativity, published in 1905.Basical at the time, the theory tied together space and time, matter and energy, and set a hard limit for the speed of light, later measured to be about 186, 000 miles per second.
No experiment in 106 years had broken that speed limit.Physicists expect strict study to follow, which OPERA and CERN scientists welcomed.
Fermilab operates a similar experiment, called MINOS, that shoots neutrinos from Illinois to an underground detector in Minnesota.In 2007, MINOS discovered a just detectable amount of faster than-light neutrinos, but the permissible difference of error was too big to "mention" , Plunkett said.
Fermilab scientists will reanalyze their data, which will take six to eight months.In 2013, the MINOS detector, now offline, will restart after an upgrade.It could then offer confirmation of the results.Why are the European scientists not sure about the results of the experiment?
A.Because they are so unexpected. |
B.Because the scientists do not believe them. |
C.Because the scientists are careful and calm. |
D.Because they are against the present law of physics. |
The underlined word " phenomenal" in the fourth paragraph has the closest meaning to .
A.amazing | B.attractive | C.embarrassing | D.sensitive |
The best title for the passage may be _____.
A.Are the laws of physics in disorder? |
B.Particles faster than light; Revolution or mistake? |
C.Faster than light measurement: right or wrong? |
D.Is Einstein's theory still right today? |
What may be discussed in the paragraphs to follow?
A.Different opinions about the experiment. |
B.How Albert Einstein's theory developed. |
C.The new rules for how the universe works. |
D.How Fermilab scientists will reanalyze their data. |
At a meeting, a well-known speaker lifted up a bill of 20 dollars before starting his speech.
Facing 200 people, he asked, “Who wants this 20-dollar bill?” A great many hands were put up. Then he continued to say, “I intended to give it to any one of you, but allow me to do a thing before giving it to you.” Suddenly he crumpled (揉)it into a round mass. Then he asked, “Who wants it? ” Still some hands were lifted up.
He asked again, “Well, how could it be if I do it like this?” he threw the bill onto the ground, stepped on it and twisted it. As he picked it up, the bill had become not only dirty but wrinkled.
“Who still wants it?” Still a few people put up their hands.
“My dear friends, you have had a meaningful class. No matter how I treated this bill, you still want it, because it is worth 20 dollars. On your life road, you may be knocked down(击垮) or even broken into pieces by your determination or unfavorable situations. We may feel ourselves worth nothing, but, my darling, remember that whatever happens in the future, you should never lose your value(价值) in the God’s heart. You’re particular ---- never forget it.”
How many times did the speaker ask the people whether they wanted the bill?
A.Once | B.Twice | C.Three times | D.Four times |
The underlined word “wrinkled” in the third paragraph probably means ________.
A.broken | B.having small lines or folds in it | C.flat | D.having holes on it |
The speaker did this test in order to _____________.
A.tell the audience that one should never lose one’s own value |
B.tell the audience that God values money most |
C.test if some of the audience were extremely interested in money |
D.play a trick on the audience |
What would the speaker probably talk about next?
A.How money can make people crazy. | B.How to avoid being knocked down in one’s life. |
C.How to keep one’s value of life. | D.How to give a meaningful class |
Green-space facilities are contributing to an important extent to the quality of the urban environment. Fortunately it is no longer necessary that every lecture or every book about this subject has to start with the proof of this idea. At present it is generally accepted, although more as a self-evident statement than on the base of a closely-reasoned scientific proof. The recognition of the importance of green-spaces in the urban environment is a first step on the right way; this does not mean, however, that enough details are known about the functions of greenspaces in towns and about the way in which the inhabitants (居民) are using these spaces.
The theoretical separation of living, working, traffic and recreation which for many years has been used in town-and-country planning, has in my opinion resulted in disproportionate (不成比例的) attention for forms of recreation far from home, whereas (但是)there was relatively little attention for improvement of recreative possibilities in the direct neighborhood of the home. We have come to the conclusion that this is not right, because an important part of the time which we do not pass in sleeping or working, is used for activities at and around home. So it is obivous that recreation in the open air has to begin at the street door of the house. The urban environment has to offer as many recreation activities as possible, and the design of these has to be such that more obligatory (强制性的) activities can also have a recreative aspect.
The very best standard of living is nothing if it is not possible to take a pleasant walk in the district, if the children cannot be allowed to play in the streets, because the risks of traffic are too great, if during shopping you can nowhere find a spot of enjoying for a moment the nice weather, in short, if you only feel yourself at home after the street door of your house is closed after you. According to the author, the importance of greenspaces in the urban environment _______.
A.is still unknown | B.is being closely studied |
C.is usually neglected | D.has been fully recognized |
The theoretical separation of living, working, traffic and recreation has led to _______.
A.the disproportion of recreation facilities in the neighborhood |
B.all of the recreation facilities far from home |
C.relatively little attention for recreative possibilities |
D.the improvement of recreative possibilities in the neighborhood |
The author suggests that the recreative possibilities of greenspaces should be provided _______.
A.in special areas | B.in the suburbs |
C.in the neighbourhood of the house | D.in gardens and parks |
The author says “more obligatory activities can also have a recreative aspect” to _______.
A.suggest that obligatory activities don’t need to serious |
B.show that recreation activities are very important |
C.show how recreation activities have spread wildly |
D.sug![]() |
Why would someone only feel himself at home according to the last paragrap
h?
A.One lives the very best standard of living. |
B.There are too many distractions outside his home. |
C.There are few recreations around his house. |
D.One needs the street door of his house to be opened always. |
I heard many parents complaining that their teenage children are rebelling. I wish it were so. At your age you ought to be growing away from your parents. You should be learning to stand on your own two feet. But take a good look at the present rebellion. It seems that teenagers are taking the same way of showing that they disagree with their parents. Instead of striking out boldly on their own, most of them are clutching (紧握) at one another’s hands for reassurance.
They claim they want to dress as they please. But they all wear the same clothes. They set off in new directions in music. But somehow they all end up huddled (聚在一起) round listening to the same record. Their reason for thinking or acting in thus-and-such a way is that the crowd is doing it. They have come out of their cocoon (蚕茧) into a larger cocoon.
It has become harder and harder for a teenager to stand up against the popularity wave and to go his or her own way. Industry has firmly carved out a teenage market. These days every teenager can learn from the advertisements what a teenager should have and be. And many of today’s parents have come to award high marks for the popularity of their children. All this adds up to a great barrier for the teenager who wants to find his or her own path.
But the barrier is worth climbing over. The path is worth following. You may want to listen to classical music instead of going to a party. You may want to collect rocks when everyone else is collecting records. You may have some thoughts that you don’t care to share at once with your classmates. Well, go to it. Find yourself. Be yourself. Popularity will come — with the people who respect you for who you are. That is the only kind of popularity that really counts.
In this passage, the author wants to tell _______.
A.readers to try to be popular with people around |
B.teenagers to try to pursue their real selves |
C.parents to try to control and guide their children |
D.people to try to understand and respect each other |
The author disapproves of rebelling teenagers _______.
A.growing away from their parents | B.turning to their friends for hel![]() |
C.walking a new way on their own | D.following the popularity trend |
The phrase “a larger cocoon” at the end of the second paragraph refers to _______.
A.the distractive and variable society | B.the popularity wave in the society |
C.the parental care and love | D.the dazzling music world |
What does the author think of advertisements?
A.Convincing. | B.Instructive. | C.Influential. | D.Authoritative. |
According to the author, what might happen when a teenager stands up against the popularity wave and follows his/her own path?
A.He/She gains valuable popularity. | B.He/She loses good friends. |
C.He/She faces all kinds of criticism. | D.He/She falls behind the time. |
As is known, healthy foods can help save your life. Now, here is a list of healthy foods that can save your memory. It is best that every person knows what he eats, as he takes in, can make or break himself, in terms of health.
Fish is helpful in regaining back the kind of memory that a person once has. Eating fish can help you save the trouble of forgetfulness. Vegetables rich in fiber and other dark and green leafy kinds are very suitable for people who want to avoid mental blocks. These foods contain high units of vitamin E.
Another food that is considered having different effects on preventing this brain deficiency (缺陷) is avocado (鳄梨), which is also rich in vitamins E and C. It is really good to know these healthy foods that can save your memory are always at hand so as to help you in your fight against diseases. Sunflower seeds are regarded as Vitamin C-powered seeds and also give you enough energy.
As for red wine, do not over consume it, as it is said to have to be taken in moderate amounts in order to help the body. Over-drinking can cause illness and like anything else. This is considered as one of the healthy foods that can save your memory; alcohol can otherwise lose it.
It is better to consume colored bread, rice and whole grains for you to get the best out of fiber. These foods can lower the body’s risk of being infected with Alzheimer’s disease(老年痴呆病).
Knowing the healthy foods that can save your memory is living the life that you have longed and desired. Among the others, the best, of course, is exercise. Taking in different kind of exercises, physical activities or sports can keep both your body and mind healthy. If you suffer from loss of memory, you _______.
A.should eat cucumbers and cabbages | B.can drink as much wine as possible |
C.had better take in fish![]() |
D.may as well take more Vitamin C |
To prevent mental disease from happening, _______.
A.people are advised to take avocados | B.it is best to eat vegetables high in fiber |
C.it is better to have more sunflower seeds | D.red wine is the first and best choice |
Which of the following is the most important for health?
A.Drinking a proper amount of red wine every day. |
B.Eating bread made of whole grains. |
C.Adding Vitamin C-powered seeds to meals. |
D.Taking moderate exercise every day. |
How many means for health does the author mention in the passage?
A.Six | B.Seven | C.Eight | D.Nine |
Which of the following is most suitable for the passage?
(①="Para.1" ②="Para.2" ③="Para.3" ④="Para.4" ⑤="Para.5" ⑥=Para.6)
①①
↙↘↙↘
A.②③④⑤ | B.②③④⑤ ↖↗↖↗ ⑥⑥ ①① ↙↘↙↘ |
C.②③④⑤ | D.②③ |
↖↗↙↘
⑥④ ⑤
↖↗
⑥
The 92-year-old, thin, calm and proud lady, who is fully dressed each morning by eight o’clock, even though she is nearly blind, moved to a nursing home today.
Her husband of 70 years recently passed away, making the move necessary. After many hours of waiting patiently in the hall of the nursing home, she smiled sweetly when told her room was ready.
As she walked slowly to lift, I provided a true description of her tiny room, including the old sheets(床单) that had been hung on her window. “I love it.” She said with the happiness.
“Mrs. Jones, you haven’t seen the room…. Just wait..” “That doesn’t matter.” She replied. “ Happiness is something you decide ahead of time. Whether I like my room or not doesn’t depend on how the furniture is arranged. It is how I arrange my mind, I have already decided to lobe it. It is a decision I make every morning when I wake up. Each day is a gift, and as long as my eyes open I will focus on the new day and all the happy memories I’ve stored away.” She went on to explain, “Old age is like a bank account(帐户). You put what you have in. So, my advice to you would be to put in a lot of happiness in the bank account of memories. Thank you for your part in filling my memory bank.” And with a smile, she said, “All my memories are happy ones.”
Mr. Jones was always happy in the nursing home and she died at the age of 108. We can infer from the passage that the writer_____________.
A.is one of Mrs. Jones children |
B.is a relative of Mrs. Jones |
C.works in the nursing home |
D.is the owner of the nursing house |
The room in which the old lady will live ____________.
A.isn’t in good condition |
B.is fairly big |
C.is very comfortable |
D.is equipped with new furniture |
Which of the following words can best describe Mrs. Jones?
A.Proud | B.Pleasant |
C.Loyal | D.Honest |
The author intends to tell us_________________.
A.why the lonely woman was happy |
B.what a nursing home was alike |
C.how to live a long life |
D.how to lead a happy life |