Five cloned pigs,whose organs are much less likely to be rejected(排斥) by a patient,have been born in the U.S.
More than 62,000 people in the U.S. alone are waiting to ____ donated hearts,lungs and so on.The number of human donors falls far short of ____.Pig organs are of a(n) ____ size to human organs,and some scientists hope they might be used to help meet the ____.But previous attempts to transplant pig tissue into humans have ____.
The five pigs ____ a gene that adds a sugar to the surface of pig cells.The sugar would ____ immune(免疫的) rejection of the tissue.“This advance provides a neartime ____ for overcoming the problem that there is not enough human organs for transplants,”says an expert.“This is the ____ gene for overcoming the ____ stage of rejection.”
____,scientists warn that much more work is necessary ____ organs from copies of the pigs could be transplanted into humans.Human genes will need to be added,to ____ rejection of the organ in the long term.There are also ____ that pig viruses could infect patients.
Cloning techniques were ____ to the production of the pigs.Genes can only be knocked out(去除) in a single cell.Cloning of these single cells then allowed the ____ of a whole animal in which the gene was knocked out in every cell.But the PPL researchers have ____ in knocking out only one copy of the gene.The team will now attempt to knock out both copies of the gene.
The team will also ____ tests to investigate whether a virus from the pigs could infect human cells.“Although a lot of the work is very ____,we’re still very far off being able to grow an organ,” says Julia,who is working on this project and quite ____ to creating similar knockout pigs with researchers at the University of Missouri.
A.exchange B.check C.possess D.receive
A.discussion B.demand C.doubt D.distance
A.beneficial B.identical C.similar D.certain
A.shortage B.condition C.satisfaction D.argument
A.continued B.failed C.finished D.paused
A.lack B.include C.make D.change
A.leave B.cause C.block D.destroy
A.supply B.ambition C.contribution D.solution
A.only B.rare C.key D.safe
A.last B.whole C.next D.early
A.However B.Therefore C.Besides D.Finally
A.because B.before C.if D.after
A.prevent B.ignore C.judge D.weaken
A.regrets B.emotions C.concerns D.interests
A.simple B.vital C.unusual D.basic
A.collection B.application C.reception D.creation
A.delighted B.succeeded C.joined D.believed
A.conduct B.plan C.design D.study
A.perfect B.strange C.exciting D.disappointing
A.opposed B.used C.devoted D.suited
完形填空。阅读下面短文,从自短文后所给的四个选项(A、B、C和D)中选出能填入空白处的最佳选项。(每小题1.5分,满分30分)
It had been a tiring day and I was looking forward to__31__ evening. My husband__32__ back until late and I had __33___ to sit down in a comfortable armchair in the living room and read a book. I __34__ the children to bed early and __35__ a cold supper and some coffee. Soon I was sitting comfortably with a plate __36___ with food before me and a book at my side.
I was just beginning to eat __37__ the telephone rang. I put down my knife and fork and hurried to answer __38___ . By the time I got back to the living room,my coffee __39__ cold. After I finished my __40__ I began to drink my coffee __41__ my book open at page one. Suddenly there was a __42__ at the door. It gave me __43__ surprise that I spilt the __44__ and made an ugly stain(污迹)on my skirt. Some stranger had got __45__ and wanted me to show him the way. It __46__ ages to get rid of him. At last I __47__ to sit down again __48__ actually read a whole page without __49__ more interruption until the baby woke up. He began crying loudly and I rushed up-stairs. The baby was __50__ awake at eleven o'clock when my husband came home. I should have cried myself when he asked me if I had a pleasant evening!
31. A. a quiet B. an exciting C. a lovely D. a lonely
32. A. would come B. had not come C. cameD. would not come
33. A. decided B. started C. come D. hurried
34. A. put B. made C. threw D. allowed
35. A. boiled B. heated C. cooked D. prepared
36. A. fullB. filled C. filling D. to be filled
37. A. as B. then C. when D. while
38. A. him B. her C. it D. them
39. A. was getting B. had got C. would get D. got
40. A. supperB. drinking C. reading D. coffee
41. A. while B. when C. as D. with
42. A. stranger B. loud knock C. dog D. man
43. A. such great B. a so great C. such a great D. so great
44. A. food B. supper C. plate D. coffee
45. A. gone B. lost C. missing D. away
46. A. cost B. spent C. paid D. took
47. A. tried B. hoped C. decided D. managed
48. A. before B. after C. but D. and
49. A. some B. any C. much D. no
50. A. already B. still C. possibly D. almost
第二部分:完形填空(共20小题;每小题1.5分,满分30分)
A while ago my family and I went sledding. As I watched my children climbing up the slope, I started 36 .
Many people are 37 that most of today’s social problems are because of the “me ” generation; youngsters are just out for 38 and pay no attention to others or their needs. Indeed, a common belief is that today’s youngsters won’t do anything 39 there is something in it for them.
Yet, while sledding, I saw a 40 side to youngsters. I watched my two oldest children 41 my youngest by the hand to help her up the slippery slope each time they 42 . They would have been faster 43 her, but not once did they try to 44 her without helping.
Don’t get me wrong; these children 45 fight among themselves and, on occasion, 46 horribly. But I can take them 47 and know that they won’t ask for anything; I can talk to them about hurricane victims and know that they will 48 to donate some of their own money.
Perhaps, therefore, the “me” generation is to 49 for many social problems — not the youngsters who want everything, but the 50 in their lives who have taught them to selfishly think only of themselves. Most adults have been 51 at some time or another. In this case, they are really cold towards others. 52 , many pass it down to their children. Then the children learn to put themselves first!
Most young children want to help. We can 53 that feeling to continue into adulthood by teaching the 54 my children learned while sledding: Life is a slippery slope with 55 of bruises(受伤), but we can all make it to the top if we remember to help those who need it.
36. A. planning B. crying C. teaching D. thinking
37. A. proud B. content C. convinced D. frightened
38. A. others B. everything C. themselves D. everybody
39. A. unless B. when C. if D. until
40. A. far B. wrong C. dark D. different
41. A. take B. leave C. notice D. find
42. A. gave away B. went up C. looked out D. put down
43. A. without B. for C. with D. beyond
44. A. drop by B. call on C. go for D. pass by
45. A. never B. sometimes C. finally D. especially
46. A. speak B. respond C. behave D. want
47. A. fishing B. shopping C. studying D. playing
48. A. offer B. refuse C. compete D. allow
49. A. blame B. support C. praise D. judge
50. A. teachers B. parents C. adults D. children
51. A. inspired B. fortune C. retired D. disappointed
52. A. Surprisingly B. Similarly C. Hopefully D. Sadly
53. A. understand B. share C. encourage D. describe
54. A. advice B. technique C. mistake D. lesson
55. A. wishes B. possibilities C. means D. imaginations
第二节 完形填空(共20小题;每小题1.5分,满分30分)
阅读下面短文,掌握其大意,然后从36-55题所给的四个选项(A,B,C和D)中,选出最佳选项。
My son Joey was born with club feet(天生特厚的畸形脚). The doctors assured us that with treatment he would be able to walk 36 , but would never run very well. The first three years of his life were 37 in surgery(手术). By the time he was eight, you wouldn’t know he had a 38when you saw him walk.
The children in our neighborhood ran around as most children do during 39 , and Joey would jump right in,run and play, too. We 40told him that he probably wouldn’t be able to 41 as well as the other children. So he didn’t know.
In seventh grade he 42 to go out for the cross country team. Every day he 43with the team. He worked harder and ran 44 than any of the others — perhaps he sensed that the 45 that seemed to come naturally to so many others did not come naturally to him. 46 the entire team runs, only the top seven runners have the potential (潜能) to 47 points for the school. We didn’t tell him he probably would never make the team, so he didn’t know.
He 48 to run four to five miles a day, every day — even the day he had a 103 degree fever. I was 49 , so I went to look for him after school. I found him 50 all alone. I asked him how he felt. "Okay," he said. He had two more51 to go. The sweat ran down his face and his eyes were glassy from his fever. 52 he looked straight ahead and kept running.
Two weeks later, the names of the team runners were 53 . Joey was number six on the list. Joey had made the team. He was in 54 grade — the other six team members were all eighthgraders. We never told him he shouldn’t 55 to make the team. We never told him he couldn’t do it...so he didn’t know. He just did it.
36. A. quickly B. slowly C. normally D. comfortably
37. A. spent B. wasted C. sufferedD. lost
38. A. pain B. problem C. treatment D. surgery
39. A. holidays B. day C. fun D. play
40. A. seldom B. never C. always D. once
41. A. study B. runC. walk D. behave
42. A. decided B. preferred C. refusedD. agreed
43. A. gathered B. campedC. trained D. competed
44. A. more slowly B. lessC. fasterD. more
45. A. ability B. strength C. power D. energy
46. A. Since B. BecauseC. AfterD. Although
47. A. increase B. score C. hold D. take
48. A. continued B. stoppedC. liked D. hoped
49. A. sadB. surprisedC. angryD. worried
50. A. running B. restingC. crying D. sleeping
51. A. tests B. miles C. lessonsD. examinations
52. A. Otherwise B. So C. Yet D. Thus
53. A. included B. called C. shown D. found
54. A. sixthB. eighth C. seventhD. fifth
55. A. manage B. determine C. expect D. attempt
第二节完形填空(共10小题;每小题1分,满分10分)
阅读下面短文,掌握其大意,然后从第30至第40小题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
Dear Sarah,
You have every right to feel betrayed by your friend if she did tell your secrets to others, but it seems 31 that she did. You say that you are best 32 ; well, best friends talk about their 33 and try to 34 them. If she is a good friend, you should apologize for blaming her.
35 you still have doubts, you should think about why you don’t believe her. Was it because you were ashamed of your mark 36 your behavior? Did you feel jealous of your friend’s 37 ? If so, the problem 38 with you, not her. Try not to sound too proud of 39 when discussing your marks in front of others.
However, if you feel that she is very 40 at keeping secrets and likes to embarrass you in public, you had better find a new friend.
31. A. important B. unlikely C. necessary D. unfair
32. A. students B. players C. friends D. learners
33. A. problems B. teachers C. questions D. studies
34. A. love B. solve C. find D. help
35. A. As B. While C. Because D. If
36. A. or B. and C. with D. along with
37. A. clothes B. family C. parents D. marks
38. A. goes B. fights C. deals D. lies
39. A. you B. yourself C. them D. themselves
40. A. good B. clever C. bad D. expert
The study of the effects of music on the mind and brain has been a subject of interest for many. Thehas concluded that music does have positive effects on the mind and brain.
Music is found to affect theof learning and thinking. If work is
by quiet and comforting music, it helps the listener think, analyze and work faster in a more
manner. Music
a positive attitude in the listeners and provides them with motivation(动力;动机). Surveys have shown that music brings about remarkable improvements in the
skills of students. Listening to pleasant music, while doing a difficult task, can make
seem easier.
Music has a effect on the interpersonal skills of an individual.
that we face in life are often the result of lack of confidence and lack of desire to learn. Students’ poor academic results are often a(n)
of their lack of motivation and their disinterest. Music lessons during school can help the students
their mental block. Music proves helpful in encouraging young children to venture new fields.
Musicplays a vital role in strengthening
Certain tunes are known to activate all the parts of the listener’s body, thus
him/her in the performance of other creative tasks. Music is found to give students the capacity to trust
. Music stimulates the brain centers that deal with thinking, analyzing and planning, thus strengthening one’s organizational skills.
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A.reduces | B.combines | C.takes | D.develops |
A.academic | B.physical | C.original | D.historic |
A.music | B.learning | C.lessons | D.it |
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A.income | B.outcome | C.improvement | D.progress |
A.live | B.love | C.hate | D.fight |
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A.others | B.teachers | C.themselves | D.texts |