精英家教网 > 高中英语 > 题目详情

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).

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.

2. What does the underlined word in sixth paragraph probably mean?

A.acceptable        B.valuable           C.accessible         D.easily affected

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.

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】

1.C

2.D

3.B

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。

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。

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。

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。

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。

考点:考查新闻报告类短文阅读

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。

 

练习册系列答案
相关习题

科目:高中英语 来源: 题型:阅读理解

阅读下面短文,掌握其大意,然后从46—65各题所给的四个选项中,选出最佳选项。

I left my friend’s house nearly after seven. It was still too early for me to have my evening meal,   41   I walked along the sea front for about an hour   42   I began to feel hungry. By that time I was not far from a favorite restaurant of mine,   43    I often went to eat. I went into the restaurant and   44   my meal. While I was waiting for the soup   45  , I looked around to see if I knew anyone in the restaurant. It was then   46   I noticed that a man seated at a corner table kept glancing   47   my direction, as if he knew me. The man had a newspaper in front of him, which he was   48   to read. When the waiter   49   my soup, the man was clearly puzzled by the   50   way in which the waiter and I addressed (称呼) each other. He became more   51   as time went on and it was   52   that I was well known in the restaurant. Eventually, he stood up and went into the   53  . After a few minutes he came out again,   54   the bill and left. Then I called the owner of the restaurant and asked him   55   the man had wanted. At first the owner did not want to tell me, but I   56  . “Well,” he said. “That man was from the police.” “Really?” I said, considerably surprised. “He was very   57   you.” “But why?” I asked. “He   58   you here because he thought you were the man he was   59  ,” the owner said. “When he came into the kitchen, he showed me a photograph of the   60  . Of course, it was not you.”

41. A. and             B. but                 C. so                   D. yet

42. A. until             B. when                C. because               D. after

43. A. where           B. what                C. which             D. that

44. A. sent            B. ordered              C. carried             D. got

45. A. making          B. to arrive              C. carrying            D. to take

46. A. that             B. when               C. who               D. which

47. A. back             B. in                  C. off               D. at

48. A. trying           B. pretending                   C. holding           D. going

49. A. brought          B. fetched               C. sent              D. took

50. A. familiar          B. strange              C. interesting           D. easy

51. A. puzzled           B. interested              C. funny              D. impatient

52. A. clear             B. known              C. difficult             D. impossible

53. A. office           B. restaurant             C. kitchen           D. WC

54. A. gave             B. sent                 C. paid                     D. ordered

55. A. how            B. that                 C. which             D. what

56. A. thought           B. said                 C. explained           D. insisted

57. A. excited at          B. worried about          C. satisfied with         D. interested in

58. A. searched          B. followed             C. persuaded         D. advised

59. A. finding           B. looking for            C. talking to           D. listening to

60. A. wanted man       B. owner               C. policeman          D. waiter

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

Soon after Dave left college, one of his 1_____, who was 2_____ and had no children of his own, 3_____ and left a lot of money, so he decided to 4_____ his own real estate company.

He found a nice office, bought a lot of things to 5______ it, and moved in. He had only 6_____ there for a few hours 7_____ he heard someone 8_____ towards the door of his office.

“It’s my first 9_____!” he thought. He quickly 10_____ up the telephone and 11_____ to be very 12_____ in answering an important call from someone in New York who wanted to 13_____ a big and 14_____ house in the country.

The man knocked at the door when this was 15_____, came in and waited 16_____ for Dave to 17_____ his conversation. Then he said to him, “I’m 18_____ the telephone company. I 19_____ here to 20_____ your telephone.

1. A. grandparents        B. parents               C. aunts           D. uncles

2. A. ill          B. kind                 C. rich            D. healthy

3. A. died         B. remarried            C. fell ill      D. went out

4. A. set up              B. find                 C. build            D. buy

5. A. supply       B. furnish(用家俱等布置)C.fill     D. surround

6. A. lived               B. been                C. gone             D. left

7. A. and        B. as                  C. when            D. suddenly

8. A. going        B. walking         C. crying             D. entering

9. A. repairman          B. visitor        C. worker      D. friend

10.A. hung              B. put                  C. picked          D. brought

11.A. seemed       B. looked               C. appeared        D. pretended

12.A. interested   B. active                C. busy        D. comfortable

13.A. build        B. repair               C. sell             D. buy

14.A. cheap      B. expensive             C. wide        D. splendid

15.A. beginning    B. going on            C. holding          D. finished

16.A. happily      B. politely       C. hurriedly         D. impatiently

17.A. finish             B. stop                 C. start            D. continue

18.A. from        B. for                  C. to          D. with

19.A. came      B. left                  C. stayed          D. stood

20.A. use        B. borrow              C. lend            D. connect

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

 A mining(采矿的)engineer enjoyed flying very much. One day, he was flying his own plane over a lonely island when a 1_____ storm came, so he was 2____ to make a forced landing. The plane was in good 3_____ but his legs and shoulder got 4_____ hurt. After getting out of the plane with great 5_____, he found nothing but high green hills 6_____ the place. He lay there expecting to die.

Soon, however, some men appeared from out of the forest. Though curious, they were not 7______of him. He was then gently 8______ to their village, where he was well treated. His 9_____ improved little by little and he became their 10_____. The place was 11_____ and pleasant and he was in 12_____ hurry to leave.

Several months later, he learned some of their language and 13_____ them some of his own.

One day, he discovered some sings of 14_____ mineral deposits(矿藏)in the soil. He decided to 15_____ to his country and set up a firm(公司)to mine the land.

It was not long 16____ the peaceful land was taken over by strange men and machines. When there was 17_____left to mine, the firm 18______ away. They had made a great deal of 19_____ for themselves, but the villagers’ land was 20_____. Now it is impossible to grow crops there.

1. A. quick         B. wonderful            C. heavy                D. sudden

2. A. ordered            B. forbidden            C. permitted       D. obliged

3. A. condition           B. relation               C. action        D. speed

4. A. slightly       B. seriously             C. hardly        D. luckily

5. A. pleasure            B. attention              C. difficulty               D. achievement

6. A. covering           B. wrapping             C. holding       D. surrounding

7. A. tired               B. afraid                C. sure                 D. kind

8. A. carried             B. forced               C. pushed               D. pulled

9. A. health              B. leg           C. shoulder      D. heart

10.A. enemy     B. visitor                C. friend          D. slave

11.A. pure              B. proper               C. dangerous     D. quiet

12.A. a                 B. such                C. no                  D. great

13.A. told         B. taught             C. showed              D. offered

14.A. poor           B. little            C. much             D. rich

15.A. return       B. drive              C. ride          D. walk

16.A. after              B. before               C. when                D. since

17.A. something  B. anything             C. everything      D. nothing

18.A. gave       B. got                  C. put                  D. passed

19.A. iron               B. dollars               C. gold                 D. money

20.A. ploughed   B. protected             C. destroyed     D. sold

查看答案和解析>>

科目:高中英语 来源:2015届江苏省宿迁市高二上学期第一次月考英语试卷(解析版) 题型:完型填空

About one year ago, a couple with three children moved into the apartment next door to me. I never heard any noise form the children, but I often heard the parents      shouting at the kids, not in a nice tone, but in a (n)      one.

We often      in the hallway. I always greeted them,      the only answer I ever got was a “hello” from the eight-year-old girl. I usually      to see my doctor and one day when I returned they were just      their apartment and the little girl was      the outside door open for the others. I      in the car doing      things because I wasn’t eager to be snubbed (冷落) again. Finally I got out of my car and walked towards the door. The parents were telling her to      to get into the car, but the little girl was still holding the door,      me! I hurried although I was still in pain from my injury.

I forgot to tell her how      I was for her kindness. I wrote a note saying how much her act of kindness had      an old man’s heart.

The next day there was a (n)      on my door and it was the little girl and her father. She was quite      of her behavior and thanked me. Then I noticed her mother was there, too. Her parents      me, too.

Now when we meet in the hall way we always greet each other, in a friendly      .

Last night there was a heavy snow. I looked out at my car and      how I was going to keep my doctor’s      because I could only walk for a short time. This morning when I opened the front door, all the snow was removed.

Isn’t it      that the small kind act of an 8-year-old girl can change so many things for the better? It is said that good tings come from small acts.

1.A. quietly            B. strangely            C. quickly             D. angrily

2.A. frightening          B. exciting             C. sincere            D. kind

3.A. quarreled      B. met                C. chatted             D. argued

4.A. when     B. so                  C. but                D. or

5.A. went out          B. set out         C. took out       D. gave out

6.A. decorating B. cleaning            C. returning     D. leaving

7.A. breaking        B. operating           C. holding            D. unlocking

8.A. kept           B. remained            C. insisted            D. left

9.A. favorite          B. important          C. unnecessary        D. curious

10.A. hurry            B. drive             C. stay           D. greet

11.A. hunting for       B. asking for        C. waiting for            D. calling for

12.A. beneficial         B. influential         C. anxious            D. grateful

13.A. strengthened   B. broken       C. touched          D. saved

14.A. note             B. knock            C. invitation      D. picture

15.A. proud           B. aware            C. afraid                 D. sure

16.A. understood      B. recognized    C. praised         D. thanked

17.A. manner        B. appearance       C. statement             D. announcement

18.A. found           B. doubted             C. remembered       D. wondered

19.A. advice          B. appointment  C. suggestion       D. attention

20.A. amazing       B. confusing           C. disappointing   D. challenging

 

查看答案和解析>>

科目:高中英语 来源:2011-2012学年重庆市高三(上)第三次月考英语试题 题型:完型填空

I grew up poor – living with six brothers, my father and a wonderful mother. We had   36  money and few worldly goods, but plenty of love and attention. I was   37   and energetic. I understood that no matter how poor a person was, they could   38   afford a dream.

    My dream was to be a   39  .When I was sixteen, I could crush a baseball, throw a ninety-mile-per-hour fastball. I was also   40  : my high-school coach was Ollie Jarvis, who   41  me the difference between having a dream and showing strong belief. One particular   42  with him changed my life forever.

    It was a summer and a friend recommended me for a summer   43  . This meant a chance for my first income—cash for a new bike and new clothes, and the   44  of savings for a house for my mother. The opportunity was attracting, and I wanted to   45   at it.

    Then I realized I would have to   46   summer baseball to handle the work schedule, and that meant I would have to tell Coach Jarvis I wouldn’t be playing. I was   47   about this.

    When I told Coach Jarvis, he was as   48  as I expected him to be. “You have your whole life to work,” he said. “Your   49  days are limited. You can’t afford to waste them.”

    I stood before him with my head   50  , trying to think of how to explain to him why my dream of buying my mom a house and having money in my pocket was worth   51   his disappointment in me.

“How much are you going to make at this job?” he demanded.

“$ 3.25 an hour,” I replied.

“Well, is $ 3.25 an hour the price of a   52  ?” he asked.

    That   53  laid bare for me the difference between wanting something right now and having a goal. I devoted myself to   54   that summer, and within the year I was offered a $ 20,000 contract. I signed with the Denver Broncos in 1984 for $ 1.7 million, and bought my mother the   55  of my dreams.

1.A. some               B. little           C. no               D. much

2.A. happy              B. lovely           C. angry            D. noisy

3.A. only               B. ever             C. still            D. almost

4.A. teacher            B. coach            C. doctor           D. sportsman

5.A. lucky              B. satisfied        C. hopeful          D. surprised

6.A. taught             B. asked            C. told             D. trained

7.A. match              B. story            C. moment           D. incident

8.A. job                B. camp             C. holiday          D. course

9.A. cause              B. start            C. need             D. amount

10.A. stand             B. call             C. look             D. jump

11.A. take out   B. cut off                 C. put on           D. give up

12.A. excited           B. curious          C. anxious          D. disappointed

13.A. mad               B. puzzled          C. regretful        D. discouraged

14.A. working           B. playing          C. learning         D. shining

15.A. shaking           B. hanging          C. holding          D. nodding

16.A. feeling           B. suffering        C. facing           D. expressing

17.A. dream             B. game             C. chance           D. life

18.A. offer             B. price            C. question         D. order

19.A. study             B. sports           C. homework         D. business

20.A. clothes           B. bike             C. house            D. goods

 

查看答案和解析>>

同步练习册答案