阅读理解:If you think a high-factor sunscreen(防晒霜)keeps you safe from harmful rays, you may be wrong
Question 1 to 5 are based on the following passage.
If you think a high-factor sunscreen(防晒霜)keeps you safe from harmful rays, you may be wrong. Research in this week&39;s Nature shows that while factor 50 reduces the number of melanomas(黑瘤)and delays their occurrence, it can&39;t prevent them. Melanomas are the most aggressive skin cancers. You have a higher risk if you have red or blond hair, fair skin, blue or green eyes, or sunburn easily, or if a close relative has had one. Melanomas are more common if you have periodic intense exposure to the sun. Other skin cancers are increasingly likely with long-term exposure.
There is continuing debate as to how effective sunscreen is in reducing melanomas—the evidence is weaker than it is for preventing other types of skin cancer. A 2011 Australian study of 1,621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed. A second study, comparing 1,167 people with melanomas to 1,101 who didn&39;t have the cancer, found that using sunscreen routinely, alongside other protection such as hats, long sleeves or staying in the shade, did give some protection. This study said other forms of sun protection—not sunscreen—seemed most beneficial. The study relied on people remembering what they had done over each decade of their lives, so it&39;s not entirely reliable. But it seems reasonable to think sunscreen gives people a false sense of security in the sun.
Many people also don&39;t use sunscreen properly-applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long. It is sunburn that is most worrying-recent shows five episodes of sunburn in the teenage years increases the risk of all skin cancers.
The good news is that a combination of sunscreen and covering up can reduce melanoma rates, as shown by Australian figures from their slip-slop-slap campaign. So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, slop on(抹上)sunscreen and slap on a hat.
1.What is people&39;s common expectation of a high-factor sunscreen?
A.It will delay the occurrence of skin cancer.
B.It will protect them from sunburn.
C.It will keep their skin smooth and fair.
D.It will work for people of any skin color.
2.What does the research in Nature say about a high-factor sunscreen?
A.It is ineffective in preventing melanomas.
B.It is ineffective in case of intense sunlight.
C.It is ineffective with long-term exposure.
D.It is ineffective for people with fair skin.
3.What do we learn from the 2011Australian study of 1,621 people?
A.Sunscreen should be applied alongside other protection measures.
B.High-risk people benefit the most from the application of sunscreen.
C.Irregular application of sunscreen does women more harm than good.
D.Daily application of sunscreen helps reduce the incidence of melanomas.
4.What does the author say about the second Australian study?
A.It misleads people to rely on sunscreen for protection.
B.It helps people to select the most effective sunscreen.
C.It is not based on direct observation of the subjects.
D.It confirms the results of the first Australian study.
5.What does the author suggest to reduce melanoma rates?
A.Using both covering up and sunscreen.
B.Staying in the shade whenever possible.
C.Using covering up instead of sunscreen.
D.Applying the right amount of sunscreen.
时间:2023-04-01 09:32:53
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If you are talking about the future, and if you say, “________________” about something, then it means that you think it will never really happen.
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If you are going to give a speech aboutwill AI replace human?, which of the following opening do you think is better?
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True love never dies, you’ll hear people say. If you think this is just a lot of nonsense, then you haven’t met John Gallagher.
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We think it advisable for you to make a _________ if you wish toremain competitive.
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How about if you think about it ______ and get back to me.
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What may the reviewer thinks if you cite too many your own publications?
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In the US, if you have certain years of working experience and return to university to do your graduate degrees, people would think that ( ).
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Nowdys,people usully think if you enter key university,youre your prents’________________.[Nowdys,people usully think if you enter key university,youre your prents’________________. [ ]pride B.luck C.vlue D.cheer
A.pride
B.luck
C.value
D.cheer
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If you want stay young, sit down and have a good think. This is the research finding of a team of Japanese doctors, who say that most our brains are not getting enough exercises—and as a result, we are ageing unnecessarily soon.
Professor Taiju Matsuzawa wanted to find out why otherwise healthy farmers in northern Japan appeared to be losing their ability to think and reason at a relatively early age, and how the process of ageing could be slowed down.
With a team a colleague (同事) at Tokyo National University, he set about measuring brain volumes of a thousand people of different ages and varying occupations.
" Computer technology enabled the researchers to obtain precise (精确的) measurements of the volume of the front and side sections of the brain, which relate to intellect (智能) and emotion, and determine the human character. " The rear section of the brain, which controls functions like eating and breathing, does not contract with age, and one can continue living without intellectual or emotional facilities.
Contraction of front and side parts—as cells die off—was observed in some subjects in their thirties, but it was still not evident in some sixty- and seventy-year-olds.
Matsuzawa concluded from his tests that there is a simple remedy to the contraction normally associated with age—using the head.
The findings show in general terms that contraction of the brain begins sooner in people in the country than in the towns. Those least at risk, says Matsuzawa, are lawyers, followed by university professors and doctors. White collar workers doing routine work in government offices are, however, as likely to have shrinking brains as the farm workers, bus drivers and shop assistants.
Matsuzawa's findings show that thinking can prevent the brain from shrinking. Blood must circulate properly in the head to supply the fresh oxygen the brain cells need. "The best way to maintain good blood circulation is through using the brain, " he says, "Think hard and engage in conversation. Don't rely on pocket calculators.
The team of doctors wanted to find out______.
A.how to make people live longer
B.the size of certain people's brains
C.which people are most intelligent
D.why certain people age sooner than others
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听力原文:If you are asking for someone to translate this document, I think the new secretary, who is bilingual, can do the job hand over fist.
(23)
A.No one in this office is willing to do the translation except yourself.
B.The new secretary will ask someone to fix the date for you.
C.The new secretary can type and hand in the document for you.
D.The secretary is an able person to help you with the translation.
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If you think you deserve a raise, then you can ask ____ It.
A. about
B. on
C. from
D. for
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What do you think()it?A、of
B、which
C、to
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— Do you think this is a nice place?
—()
A.That’s right.
B.You’re right.
C.No, it ’s not here.
D.Yes, I think so.
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The new law allows you to____payment if you think a bill is incorrect.
A.withhold
B.withdraw
C.wither
D.withstand
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“Do you think I can stay to become noting to you? So you think I am an automation?—a machine without feelings? And can bear to have my morsel of bread snatched form. my lips and my drop of living water dashed from my cup? Do you think, because I am poor, obscure, plain, and little, I am soulless and heartless? – You think wrong! – I have as much soul as you—and full as much heart! And if God had gifted me with some beauty, and much wealth, I should have made it as hard for you to leave me, as it is now for me to leave you. I am not talking to you now through the medium of custom, conventionalities, or even of mortal flesh: -- it is my spirit that addresses your spirit; just as if both had passed through the grave, and we stood at God’s feet, equal – as we are!”
1. Identify the author and the title of the novel from which this passage is taken.
2. Who is the narrator and whom is the speaker addressing?
3. Summarize the speaker’s meaning.
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I don't think she'd get angry if you were a Little more () when you disagreed with her on matters of child rearing.
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听力原文: If you were a college student, there are several things you should know about renting an apartment. First, you must know how to look for a place to live. Friends, teachers and other people you meet may know of apartments that are available. You may also find a place to live by looking in a campus or see it in newspapers. In some towns, there are rental agencies that can help you find an apartment, but think carefully about using agencies. Usually they will charge you a fee. You should also walk around and look for buildings with "For Rent" signs.
When you go to look at apartments to rent, there are several things you ought to do. First, you should find out if the apartment is safe. Be sure there are good locks on all the windows and doors. It is also a good idea to check all the appliances as well as the water and electricity to be sure everything is working. It might also be a good idea to talk to other people who rent apartments in the same building. This will help you to find out if there are any problems.
If you decide to rent an apartment, the landlord would probably want you to sign a lease. This is a legal contract and you ought to read it carefully. You will also need to pay a security deposit. If there is no damage the landlord has to return this money when you leave.
Whom can you ask for help to look for a place to live?
A.Your friends.
B.Your teachers.
C.Other people you meet.
D.All of the above.
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Most of us trade money for entertainment. Movies, concerts and shows are enjoyable but expensive. (78) If you think that you can't have a good time without spending a lot of money, read on. A little resourcefulness and a few minutes of newspaper—scanning should give you some pleasant surprises.
People may be the most interesting show in a large city. Stroll through busy streets and see what everybody else is doing. You will probably see people from all over the world; you will certainly see people of every age, size, and shape, and you'll get a free fashion show, too. Window—shopping is also a safe sport—is the stores are closed.
Check the listings in your neighborhood paper. Local colleges or schools often welcome the public to hear an interesting speaker or a good debate. The film or concert series at the local public library probably won't cost you a penny. Be sure to check commercial ad vertisements too. A flea market can provide hours of pleasant brow sing. Perhaps you can find a free cooking or crafts in a department store.
Plan ahead for some activities. It is always more pleasant not to have people in front of you in a museum or at a zoo. You may save some money, too, since these places often set aside one or two free admission days at slow times during the week. (79) Pretend that you are a tourist from time to time, and get to know your city all over a gain including the indispensable (不可错过的) sights that people travel miles to see. If you feel like taking an interesting walk, find a free walking tour, or plan one yourself. You will see your city in a new perspective (视角) once you know more about its history or its architectural treasures. With imagination and a spirit of adventure you can quite easily find good entertainment at no cost at all.
Which of the following statements is NOT true?
A.There are many kinds of amusements you can enjoy without spending much money.
B.Local colleges often hold meetings to debate the issues people are interested in.
C.The film shown at the local public library is often free of charge.
D.You should be a tourist if you want to know more about the city you live in.
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—Are you thinking about going to New York for the holiday? —NoBut if I_____the time, I would definitely go.
A.have
B.had
C.have had
D.would have
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Nowdys,people usully think if you enter key university,youre your prents’________.[ ]prideNowdys,people usully think if you enter key university,youre your prents’________. [ ]pride B.luck C.vlue D.cheer
A.pride
B.luck
C.value
D.cheer
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If you are trying to open the door for somebody else, think ahead and try to position yourself to open the door easily.()
此题为判断题(对,错)。
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If you think getting a certificate means getting a job, you are __ yourself. A.
A.keeping
B.having
C.cheating
D.doing
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A certain TV station wants to hire a host of legal programs, and if time flies back to the warring States period, Which representative of the school of thought do you think is the most suitable to ser
A.Confucian
B.Legalist
C.Mohist
D.Military School
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You have to be____ and cancel your marriage plan without any hesitation if you think that he is not reliable and responsible()
A.romantic
B.realistic
C.optimistic
D.fantastic