DHolding a cell phone against your ear or storing it in your pocket may be dange

DHolding a cell phone against your ear or storing it in your pocket may be dange

题型:不详难度:来源:
D
Holding a cell phone against your ear or storing it in your pocket may be dangerous to your health. This explains a warning that cell phone manufacturers include in the small print that is often ignored when a new phone is purchased. Apple, for example, doesn’t want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry’s manufacturer, recommends 2.5 centimeters.
If health issues arise from cell phone use, the possible effects are huge. Voice calls - Americans chat on cell phones 2.26 trillion(万亿)minutes annually - earn $109 billion for the wireless carriers.
Devra Davis, an expert who has worked for the University of Pittsburgh, has published a book about cell phone radiation, “Disconnect.” The book surveys scientific research and concludes the question is not settled.
Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.
“Most cancers have multiple causes,” she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.
Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid(易吸收的液体). No studies have yet been completed on cell phone radiation and children, she says.
Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiation had damaged DNA in their brains.
Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen(腹部).
小题1:Why is the warning in the small print?
A.They think people will not care about it.
B.There is not enough space for the warning.
C.They don’t want the users to pay attention to it.
D.The warning is not important at all.
小题2:What does the underlined word in sixth paragraph probably mean?
A.acceptable B.valuableC.accessible D.easily affected
小题3:What can we conclude from the last paragraph?
A.Pregnant women should keep cell phones away.
B.People should use cell phones in the correct way.
C.If you are a child, you’d better text than make phone calls.
D.When you use a cell phone, use a wired headset or the phone’s speaker.
小题4:What does the passage mainly talk about?
A.Be careful when using cell phones.
B.Don’t hold your cell phone against your ear.
C.Rats exposed to radiation have damaged DNA in their brains.
D.Low-energy radiation could damage cells that could lead to cancer.

答案

小题1:C
小题2:D
小题3:B
小题4:A
解析

试题分析:本文主要讲述的就是手机的放射性对人的影响,告诫我们使用手机要当心。
小题1:C 细节题。根据文章第一段2,3行This explains a warning that cell phone manufacturers include in the small print that is often ignored when a new phone is purchased.可知他们不想使用者了解它的危害。故C正确。
小题2:D 推理题。根据Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out.说明孩子对于放射性的影响更为敏感,更容易受到影响。故D项正确。
小题3:B 推理题。根据文章最后一段Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen(腹部).可知我们要使用耳机之类的工具,如果可能尽量使用短信,来减少对手机的使用。故B正确。
小题4:A 主旨大意题。本文主要讲述的就是手机的放射性对人的影响,告诫我们使用手机要当心。故A正确。
点评:本文主要讲述的就是手机的放射性对人的影响,告诫我们使用手机要当心。本文主旨鲜明,很容易在文中找到答案。做题时要注意文章的首段和每一段的首句或尾句,因为它们往往就是文章的主题句。阅读中要注意要点之间的关系。然后带着问题,再读全文,找出答题所需要的依据,完成阅读任务。
举一反三
阅读下列短文,从每题所给的四个选项(A、B、C和D)中 ,选出最佳选项,并在答题卡上将该项涂黑。
A
Chinese writer Mo Yan has won the 2012 Nobel Prize in Literature, announced the Swedish Academy in Stockholm on Thursday.The win makes Mo Yan the first Chinese citizen to win the Nobel in its Ⅲ-year history.Informed of his win today, the author, who was having dinner at home, was “overjoyed and scared".
Born in 1955 to parents who were farmers, Mo Yan-a pen name for Guan Moye,grew up in Gaomi in Shandong province in eastern China. At the age of 12, he left school to work, first in agriculture, later in a factory. In 1976 he joined the army and during this time began to study literature and writing.
He published his first book in 1981, but found literary success in 1987 with Hong Gaoliang Jiazu, which was successfully filmed in the same year, directed by famous Chinese director Zhang Yimou. In his writing, Mo Yan draws on his youthful experiences and on settings in the province of his birth and his works show the life of Chinese people as well as the country"s unique culture and folk customs. Mo Yan is known as a prolific(多产的 )writer. In addition to his novels, he has published many short stories and essays on various topics. Despite his social criticism, he is seen in his homeland as one of the most famous contemporary authors. Dozens of his works have been translated into English, French, Japanese and many other languages.
The awarding ceremony will be held on December 10.The winner will win a medal, a personal diploma and a cash award of about $l  million.
小题1:How did Mo Yan feel when he was told about the news?
A.Excited and proud.B. Happy and surprised.
C.Worried and cautious D. Uncertain and shocked.
小题2:Mo Yan developed his ability for writing when he was      .
A.on a farmB.in a factoryC.in a schoolD.in the army
小题3:One of Mo Yan"s characteristics of writing is that he
A.writes about topics he is familiar with
B.focuses on social problems in the country
C.describes his characters in a unique way
D.explains difficult matters in simple words
小题4:What"s the best title for this passage?   
A.How Mo Yan Gets Nobel Prize
B.An Introduction to Nobel Prize
C.Mo Yan Wins Nobel Prize in Literature
D.A World Famous Writer, Mo Yan

题型:不详难度:| 查看答案
C
Holding a cell phone against your ear or storing it in your pocket may be dangerous to your health. This explains a warning that cell phone manufacturers include in the small print that is often ignored when a new phone is purchased. Apple, for example, doesn’t want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry’s manufacturer, recommends 2.5 centimeters.
If health issues arise from cell phone use, the possible effects are huge. Voice calls - Americans chat on cell phones 2.26 trillion(万亿)minutes annually - earn $109 billion for the wireless carriers.
Devra Davis, an expert who has worked for the University of Pittsburgh, has published a book about cell phone radiation, “Disconnect.” The book surveys scientific research and concludes the question is not settled.
Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.
“Most cancers have multiple causes,” she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.
Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid(易吸收的液体). No studies have yet been completed on cell phone radiation and children, she says.
Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiation had damaged DNA in their brains.
Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen(腹部).
小题1:Why is the warning in the small print?
A.They think people will not care about it.
B.There is not enough space for the warning.
C.They don’t want the users to pay attention to it.
D.The warning is not important at all.
小题2: What does the underlined word in sixth paragraph probably mean?
A.acceptable B.valuableC.accessible D.easily affected
小题3:What can we conclude from the last paragraph?
A.Pregnant women should keep cell phones away.
B.People should use cell phones in the correct way.
C.If you are a child, you’d better text than make phone calls.
D.When you use a cell phone, use a wired headset or the phone’s speaker.
小题4: What does the passage mainly talk about?
A.Be careful when using cell phones.
B.Don’t hold your cell phone against your ear.
C.Rats exposed to radiation have damaged DNA in their brains.
D.Low-energy radiation could damage cells that could lead to cancer.

题型:不详难度:| 查看答案
D
President Obama: I want to welcome Vice President Xi to the Oval Office and welcome him to the United States. This is obviously a great opportunity for us to build on the U. S,-China relationship, but also an opportunity to return the extraordinary hospitality (款待) that Vice President Xi showed Vice President Biden during his recent visit to China.
As I indicated during my recent visit to APEC and the East Asia Summit, the United States is a Pacific nation. And we are very interested and very concentrated on continuing to strengthen our relationships, to enhance our trade and our commerce, and make sure that we are a strong and effective partner with the Asia Pacific region. And obviously, in order to do that, it is absolutely vital that we have a strong relationship with China.
So, Mr. Vice President, I hope you have a wonderful visit while you"re here. I"m sure the American people welcome you. I"m glad that you"re going to get an opportunity to get out of Washington. I know you"ll be visiting Iowa, which you visited many years ago when you were governor. And I understand you"re also going to Los Angeles and maybe even taking in (观看) a Lakers basketball game. So I hope you enjoy that very much.
I want to extend my deepest welcome to you, and look forward to a future of improved dialogue and increased cooperation in the years to come.
小题1:Where can you most probably read the passage?
A.In an advertisement.B.In a guidebook.C.In a news report.D.In a science report.
小题2:Which sentence is true according to the passage?
A.Obama didn"t attend APEC or the East Asia Summit recently.
B.Biden and Xi Jinping are holding the talk in the Oval Office of the White House.
C.The talk is being held between China and the USA in the Oval Office of New York.
D.Biden once paid a visit to China before this talk.
小题3: The underlined word in Para. 2 “enhance”, probably means “____”.
A.developB.changeC.inventD.reduce
小题4:From Para. 3, we can learn that Vice President Xi ____.
A.will go to Los Angeles to watch a soccer game
B.visited Iowa many years ago, when he was a vice president
C.visited Iowa many years ago, when he was governor
D.will visit New York, Washington DC and Los Angeles

题型:不详难度:| 查看答案
D

Weall know about “Brother Sharp” , “King of Calm” and “Brother Buckteeth”----names that netizens(网民) have given those with special characteristics, or who have done something special.
Recently, a new name has been added to that list----“Brother Banner(横幅)”. What did he do to get the name?
“Brother Banner” is Chen Yihua, a Senior 1 student at Guangzhou No.16 High School. On the afternoon of May 4, he made a banner, dressed in school uniform, and stood outside a Line 1 subway station in Guangzhou.
Chen was protesting(抗议)Guangzhou Metro(地铁) Company’s renovation(整修) project for the line.
The company was planning to renew 16 stations on the line over three years. It said that the station would be renovated in similar styles, and the cost of the project would be 92.27 million yuan.
The banner that Chen held said: “The special features of Line 1 stations will disappear. The program is also a waste of resources. I hope you will help my protest be signing my subway petition(请愿) against the renovation .”
His action attracted the attention of passers-by. In three days, Chen collected more than 300 signatures(签名) from the public.
The metro company also noticed Chen, and responded to him, three times, over the following week.
On May 6, the company announced that the project was to replace aging equipment that has been running for a long time, because it had “safety risks”. The public was unsatisfied with the response.
The next day, the company met with Chen and gave further details of the project. Chen remained unconvinced.
The company made a 180-degree turn in its third response to Chen’s protest on May 10.
Zhong Xuejun, spokesman for the company, said the renovation would be based on the principle of saving energy and being economical. It would focus on the old equipment and the look of the stations wouldn’t be changed much.
Finally, Chen’s voice had been heard.
小题1:What do “Brother sharp”, “King of Calm” and “Brother Buckteeth” have in common?
A.They’re handsome.
B.They only exist in the net.
C.They’re characters(角色,特征) of a novel.
D.They have done something special or have special character.
小题2:How many times has the metro company responded?
A.1B.2C.3D.4
小题3:Which of the following is NOT true?
A.“Brother Banner” is a Senior 1 student.
B.“Brother Banner” collected more than 300 signatures in three days.
C.“Brother Banner” has made a difference through his action.
D.“Brother Banner” is not a normal student.

题型:不详难度:| 查看答案
September 21, 2050----At a press conference today it was announced that the first tourist heading for Mars will be the 38-year-old US businessman Patrick Clifford. He will leave the earth in the  launching window of June 2052 and set his foot on the surface of Mars in November, together with the other 6 astronauts assigned for the mission to further explore the planet.
Patrick has now two years of training ahead of him to get ready for the trip. Not only will he spend five months in getting to Mars, but another 600 days there before he can go back home.  Patrick was of course very excited, “ This has been my dream since I was four, and seeing the first man on Mars 20 years ago made me realize that it was possible.”
To be able to pay the $ 1. 3 billion for his ticket for the trip Patrick sold his majority stake (股份) in the company his father had built. “I know that my father would have been proud of me if he had still been alive today, he knew what this means to me”, says Patrick. There is no risk though that you will find Patrick begging in your street corner when he comes back, but it is said that he was paid twice as much for his part of the company.
So, how is he going to spend his 600 days on the red planet? “Well, since I don’t have a job when I get back after selling the company, I have plenty of time to come up with a new business idea”, he says and laughs. If he brings a shovel(铁锹)he can start building the first hotel there, but maybe he shouldn’t expect too many guests until someone can offer a cheaper ticket.
小题1:How long will Patrick Clifford be away before he comes back?
A.About five monthsB.About two yearsC.About 600 daysD.About 750 days
小题2:The underlined part in Paragraph 3 means that          .
A.the trip will turn Patrick into a beggar
B.Patrick will get much money from the trip
C.we needn’t worry about Patrick’s economic condition
D.it’s likely that Patrick will be very poor after he comes back
小题3:What can be inferred from the passage?
A.Patrick is an optimistic man
B.A total of six people will go to Mars
C.Patrick’s father felt excited at the news
D.Patrick will spend all his money on the trip

题型:不详难度:| 查看答案
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