D

Peanut allergies (過敏) are among the most common and most dangerous of food allergies. A tiny exposure to peanuts can mean big trouble for a person with a peanut allergy—not just sneezing or coughing,but something as potentially deadly as narrowing of the airways.

But a recent study suggests that some children may be able to beat back their allergic reactions to peanuts by gradually introducing trace amounts of the nut into their diets. It's too early to say for certain,so if you have a peanut allergy,do not try this at home. But the first results look promising.

Two teams of scientists have been experimenting on a group“of 29 children who are allergic to peanuts”At the beginning of the study,each kid received less than 1/1,000 of a peanut per day. (Imagine splitting a peanut into 1,000 parts!) Over the course of the study, the children gradually increased the amount of the peanut in their diets

Nine of the children have been receiving the treatment for two years,and five of those nine now appear to be free of their peanut allergies,and can eat peanuts with no problem. But the other four have not benefited so much from the therapy(治療).

The two teams of scientists are now doing a follow-up study on two groups of children with the allergy. Children in one group will receive the new therapy,while the others will not. Researchers hope this study will help them learn if the therapy truly does work.

Scientists don't understand why some people get peanut allergies and others don't,but are trying to find a way to help people with the allergy. Because of the severity of some peanut allergies,scientists want to know the answer as soon as possible. “This is very encouraging, but remember,it's not something you try at home,”says one of the researchers.

68.According to the passage,the peanut allergy________.

A. can be deadly if only a small amount is used

B. causes a lot of trouble for many parents

C. allows people to eat only small amounts of peanuts

D. is considered the least common and dangerous food allergy

69.Scientists are trying to treat peanut allergies by_________.

A. exposing children with the allergy to as many peanuts as possible

B. changing the eating habits of children with peanut allergies gradually

C. giving children Peanuts in slowly increasing amounts

D. exploring ways to resist the feelings caused by peanut allergies

70.The experiment shows that___________. 

A. people with peanut allergies can't use small amounts of peanuts in their diets.

B. children are more easily cured than adults

C. all children can be cured of their peanut allergies if given more time of treatment

D. about 55-percent children with peanut allergies have been cured

71. Scientists are now doing a follow-up study in order to_________.

   A. explore why some people get the illness while others don’t

   B. show whether peanut allergies can really be dangerous

   C. check whether the therapy really works or not

   D. explore whether the allergy can be cured without treatment

練習冊系列答案
相關(guān)習題

科目:高中英語 來源: 題型:閱讀理解

 

I returned to Abuja, the capital of Nigeria, after college graduation. I had been there before my mother became a minister.

Two weeks later, 1 told my mother I was bored. She said, "Here're the car keys. Go and buy some fruit.    36   , I jumped into the car and speeded off.

Seeing me or rather my  37 , a boy sprang up (跳起來), 38   to sell his bananas and peanuts. "Banana 300 naira. Peanut 200 naira!"

Looking at his black-striped bananas, I   39   to 200 total for the fruit and nuts. He   40   . I handed him a 500 naira note. He didn't have   41   , so I told him not to worry. He was    42    and smiled a row of perfect teeth.

When, two weeks later, I    43    this same boy, I was more aware of my position in Nigerian society. I should   44   this country as the son of a  45   . But it was hard to find pleasure in a place where it was so    46    to see a little boy who should have been in school selling fruit.

"What's up?" I asked. He answered in   47    English, "I ... I no get money to buy book." I took out two 500 naira notes. He looked around    48    before sticking his hand into the car   49    the bills, One thousand naira means a lot to a family that    50   only 50,000 each year.

    The next morning, security officers told me, "In this place, when you give a little, people think you're a fountain of Opportunity (機會)."

     51    it's right, but this happens everywhere in the world. I wondered if my little friend had actually used the money for    52   .

 After six months' work in northern Nigeria, I returned and saw him again standing on the road.

    "Are you in school now?"

    He nodded.              

    A silence fell as we looked at each other, then I    53    what he wanted. I held out a 500 naira note. "Take this."

   He shook his head fiercely and stepped back    54  hurt.

   "It's a gift." I said.

    Shaking his head again, he handed me a basket of bananas and peanuts. "I've been waiting to    55    these to you."

 

36. A. Encouraged 

B. Disappointed    

C. Delighted     

D. Confused

37. A. car           

B. mother         

C. driver        

D. keys

38. A. willing       

B. afraid          

C. eager        

D. ashamed

39. A. got down      

B. bargained down

C. put down     

D. took down

40. A. explained    

B. promised       

C. agreed       

D. admitted

41. A. change       

B. notes          

C. checks       

D. bills

42. A. troubled      

B. regretful       

C. comfortable  

D. grateful

43. A. ran after    

B. ran into        

C. ran over      

D. ran to

44. A. protect       

B. enjoy          

C. help         

D. support

45. A. minister      

B. headmaster     

C. manager     

D. president

46. A. lucky         

B. amazing       

C. funny        

D. common

47. A. old           

B. broken         

C. traditional    

D. modem

48. A. proudly       

B. madly         

C. curiously     

D. nervously

49. A. for           

B. with           

C. at           

D. upon

50. A. spends        

B. pays           

C. makes       

D. affords

51. A. Possibly      

B. Actually       

C. Certainly     

D. Fortunately

52. A. joys      

B. nuts            

C. books        

D. bananas

53. A. asked         

B. imagined       

C. reminded     

D. realized

54. A. when         

B. as if           

C. even if       

D. after

55. A. send          

B. provide        

C. sell          

D. give

查看答案和解析>>

科目:高中英語 來源:四川省自貢市普高2010級第四次診斷性考試(英語) 題型:完型填空

完形填空(共20小題;每小題1.5分,滿分30分)
閱讀下面短文,從短文后各題所給的四個選項(A、B、C和D)中,選出可以填入空白處的最佳選項,并在答題卡上將該項涂黑。
My workplace, as do many others in our town, supports local services and the needy. One of the main services we _____21________ is our local food bank, a center where free food is made available to those in need.
This year, the food bank is _____22_______ more than in the past. _______23 cannot let the shelves become depleted(被耗盡的) or the food _______24________. Others, ________25______ children, depend on it. With the country’s _______26_______ situtation stalled(停滯) and more people out of work, more people are _____27______ and need supplements to feed their families.
This year, all the _______28______ in our area got together and decided to sponsor a “Food Fight Contest”. The contest will include 3 categories or areas to ______29_____: a) supply the most food, b) donate the most money, _______30______ c) provide the most volunteers. A company can win in all 3 areas or 3 different companies can win in each different area, ______31_____ the results. The contest will begin April Fool’s Day through the end of the month.
We’re kicking off a(n) _______32________ for fun this week. We’re all _______33______ and WE PLAN TO WIN! The last several years, to make donating ________34______, we set up food sculpture competitions between departments. Each department _______35______ bring in cans, sacks of rice, peanut butter, etc., then build and compete for the best _____36_____. The sculptures would be in a central location so coworkers could cast their vote for their ______37______. We tracked how much ____38_____ was provided by each group and then after the competition, all the _______39______ were taken to the food bank. We challenged ourselves to deliver more food and more weight each year, _______40______ it was for a great cause.
21. A. turn to          B. belong to          C. refer to          D. donate to
22. A. supported        B. challenged        C. criticized        D. enlarged
23. A. We             B. You               C. They           D. All
24. A. pile up          B. go bad             C. run out          D. sell well
25. A. only            B. actually         C. even             D. especially
26. A. cultural          B. economic         C. historical         D. political
27. A. hungry           B. anxious           C. unhappy         D. lazy
28. A. schools         B. charities       C. companies        D. governments
29. A. prove            B. stress             C. find              D. win
30. A. or               B. and             C. but               D. so
31. A. focusing on        B. relating to      C. depending on     D. leading to
32. A. campaign         B. adventure      C. ceremony         D. exhibition
33. A. excited           B. involved         C. thanked         D. prepared
34. A. likely            B. fun               C. useful           D. public
35. A. could             B. must             C. would           D. should
36. A. design            B. grade             C. speech          D. play
37. A. group           B. friend            C. hobby           D. favorite
38. A. money           B. food             C. energy          D. attenetion
39. A. gifts             B. goods          C. donations        D. participants
40. A. knowing          B. imagining        C. hoping          D. showing

查看答案和解析>>

科目:高中英語 來源:河南省平頂山新鄉(xiāng)許昌2010屆高三第三次調(diào)研考試英語 題型:完型填空


第二節(jié) 完形填空(共20小題;每小題1.5分,滿分30分)
閱讀下面短文,掌握其大意,然后從36~55各題所給的四個選項(A、B、C和D)中,選出最佳選項,并在答題卡上將該項涂黑。
Olive, from County Westmeath, Ireland, arrived in England to live with her daughter and son-in-law Thomas. She was   36   because of her poor health and   37   with her most of her treasured   38   . These included a small piece of tissue paper in which she had   39   what appeared to be five teeth which had   40   her dentures (假牙).
Having   41   in, she asked Thomas, "Do you know where I can get my dentures   42   ?" "Of course," replied Thomas.   43   you give them to me, I'll take them to a dental   44   . "
Olive handed over the rather tired piece of paper which   45   some rather dirty-looking   46   . Thomas drove to the dental laboratory.
"   47   will it take?" Thomas asked the technician.
"Oh, about an hour," smiled the dental expert.
"Then I'll wait in the   48   ," said Thomas, "and read my newspaper. "'
An hour passed and the technician   49   at the car window   50  a plastic bag and the piece of paper. "That'll be £80," requested the specialist, "   51   I could only fit four of the teeth to the dentures. I'm sorry. "
"That's a   52   ," commented Thomas. "What happened to the__  53   one?"
"I have it here in the paper," answered the technician,   54   it to Thomas.
"The thing is," he said, "it's easy to fit the teeth but   55   to fit this peanut (花生米)."
36. A. moving       B. going           C. passing      D. returning
37. A. sold        B. provided       C. brought     D. dealt
38. A. clothes           B. possessions       C. furniture    D. materials
39. A. discovered   B. secreted        C. thrown      D. buried
40. A. broken out B. broken in      C. broken away     D. broken off
41. A. settled       B. filled         C. joined       D. fallen
42. A. cut         B. dropped        C. mended     D. placed
43. A. Because      B. If              C. Therefore D. However
44. A. speaker       B. customer      C. patient       D. technician
45. A. needed           B. found           C. touched     D. contained
46. A. teeth       B. jewels          C. peanuts      D. coins
47. A. How often   B. How soon     C. How long D. How much
48. A. building      B. office               C. house        D. car
49. A. appeared     B. broke               C. laughed     D. glared
50. A. putting        B. holding        C. keeping     D. hiding
51. A. and         B. but            C. also       D. nor
52. A. fact        B. pleasure        C. pity       D. thing
53. A. fifth        B. first           C. third     D. second
54. A. proving       B. advising       C. permitting        D. showing
55. A. necessary    B. unimportant      C. impossible D. possible

查看答案和解析>>

科目:高中英語 來源:2012屆山東濟南一中高三5月沖刺仿真英語試卷(帶解析) 題型:完型填空


A man hired a taxi outside the airfield.The cab had a woolen carpet with  36 lace edges.On the glass partition that  37 the driver's seat was a copy of a famous painting.Its windows were all clean.The customer was very much  38 and said to the driver,“I've never seen a nicer  39 .”“Thank you for your praise.”the driver answered  40 
“The car isn't mine,”said the driver.“It belongs to the company.I used to be a  41 of cabs.When they returned,all of them were as  42 as garbage cans with cigarette butts and rubbish  43 here and there.On the seats and door-handles could be found something  44  like peanut sauce or, chewing gum.Why so? I thought if the car itself were very clean the passengers would most  45 be considerate and refrain from littering.”
“So when I got a  46 to be a taxi-driver,I began  47 my idea into practice-to tidy and  48 the car. Now before a new passenger gets on my car,I'd make a cheek and be sure it is in good order.When my car  49 after a day's work,it always remains  50 .”
When doing a thing,one makes efforts and wants to see the result.To change others,one has to make twice the  51 but get half the result.To change oneself is the other way round-more fruit with less effort.One had better ask oneself why one makes  52 on others much more than on oneself.  53 you take enough care to do as best you can for other people's sake,your efforts will yield results,If you  54 the inner world of your own,examine yourself and wipe out the dust and dirt,instead of fixing your eyes on other people,you will find a cheerful  55 for yourself and create a pleasant environment for others.

【小題1】
A.uglyB.excitingC.brilliant D.favorite
【小題2】
A.separatedB.coveredC.protected D.prevented
【小題3】
A.movedB.a(chǎn)nnoyedC.disappointed D.surprised
【小題4】
A.seatB.carpetC.garage D.cab
【小題5】
A.naturallyB.smilinglyC.hopefully D.firmly
【小題6】
A.driverB.cleanerC.repairer D.customer
【小題7】
A.a(chǎn)ttractiveB.pleasantC.dirty D.clean
【小題8】
A.spreadB.extendedC.dotted D.1eft
【小題9】
A.funnyB.busyC.sticky D.clumsy
【小題10】
A.likelyB.willinglyC.extremely D.regularly
【小題11】
A.permitB.1icenseC.certificate D.passport
【小題12】
A.putB.takeC.makeD.get
【小題13】
A.provideB.driveC.decorate D.describe
【小題14】
A.speedsB.leavesC.a(chǎn)rrives D.returns
【小題15】
A.spotlessB.prettyC.bright D.dirty
【小題16】
A.progressB.effortC.a(chǎn)ttempt D.trial
【小題17】
A.suggestionsB.commentsC.demands D.decisions
【小題18】
A.ThoughB.WhileC.As D.If
【小題19】
A.look intoB.look forC.look up D.look through
【小題20】
A.spiritB.moodC.mindD.sense

查看答案和解析>>

科目:高中英語 來源:2013-2014學年山東省高三12月階段性檢測英語試卷(解析版) 題型:完型填空

A man hired a taxi outside the airfield. The cab had a woolen carpet with  26  lace edges. On the glass partition that  27  the driver's seat was a copy of a famous painting. Its windows were all clean.The customer was very much  28  and said to the driver, “I've never seen a nicer  29  .”“Thank you for your praise.”the driver answered  30  .

“The car isn't mine,” said the driver. “It belongs to the company. I used to be a  31  of cabs. When they returned, all of them were as  32  as garbage cans with cigarette butts and rubbish  33  here and there. On the seats and door-handles could be found something  34  like peanut sauce or, chewing gum.Why so? I thought if the car itself were very clean the passengers would most  35  be considerate and refrain from littering.”

“So when I got a  36  to be a taxi-driver, I began  37  my idea into practice-to tidy and  38  the car. Now before a new passenger gets on my car, I'd make a cheek and be sure it is in good order.When my car  39  after a day's work, it always remains  40  .”

When doing a thing, one makes efforts and wants to see the result. To change others, one has to make twice the  41  but get half the result. To change oneself is the other way round-more fruit with less effort. One had better ask oneself why one makes  42  on others much more than on oneself.   43  you take enough care to do as best you can for other people's sake, your efforts will yield results, If you  44  the inner world of your own, examine yourself and wipe out the dust and dirt, instead of fixing your eyes on other people, you will find a cheerful  45  for yourself and create a pleasant environment for others.

1.A.ugly      B.exciting             C.brilliant                         D.favorite

2.A.separated    B.covered             C.protected                     D.prevented

3.A.moved           B.a(chǎn)nnoyed           C.disappointed                D.surprised

4.A.seat      B.carpet      C.garage                           D.cab

5.A.naturally    B.smilingly    C.hopefully                      D.firmly

6.A.driver            B.cleaner             C.repairer                        D.customer

7.A.a(chǎn)ttractive    B.pleasant              C.dirty                     D.clean

8.A.spread           B.extended         C.dotted                           D.1eft

9.A.funny             B.busy                  C.sticky                             D.clumsy

10.A.likely           B.willingly            C.extremely           D.regularly

11.A.permit            B.1icense           C.certificate                    D.passport

12.A.put                  B.take                      C.make                               D.get

13.A.provide          B.drive                     C.decorate                          D.describe

14.A.speeds           B.leaves             C.arrives                      D.returns

15.A.spotless          B.pretty                   C.bright                          D.dirty

16.A.progress        B.effort                    C.attempt                            D.trial

17.A.suggestions       B.comments               C.demands                          D.decisions

18.A.Though           B.While              C.As                              D.If

19.A.look into        B.look for       C.look up                             D.look through

20.A.spirit        B.mood                       C.mind                        D.sense

 

查看答案和解析>>

同步練習冊答案