8．Some people are calling it the greatest medical breakthrough so far this century．Surgeons in Spain have successfully carried out the world's first organ transplant using new stem cell technology．
But what are stem cells？Most cells in out bodies are designed to serve specific purposes-for example，a liver cell develops to work in the liver and cannot become a heart cell．
But stem cells are different．They are very young，and in the laboratory scientists can grow them into different types of cell．
Claudia Castillo needed a new windpipe after suffering from tuberculosis．Scientists from the  University of Bristol in the UK took a donor （捐獻(xiàn)的） windpipe，from someone who had recently died．
They used strong chemicals to remove the donor's cells．This was done with cells from Ms  Castillo's windpipe and nose，and stem cells from her bone marrow．After four days the cells had grown sufficiently for the windpipe to be transplanted into Ms Castillo．
Currently，transplant patients have to take drugs for the rest of their lives to prevent their bodies  rejecting the new organs．These drugs can have bad side-effects，and do not always prevent rejection．
But by using Ms Castillo's own cells，doctors were able to trick her body into thinking the new windpipe was her own organ．Five months on，Claudia Castillo is in perfect health．
This ground-breaking procedure could be used in other transplant operations in the future．Scientists also believe stem cells might be used to treat Parkinson's disease，Alzheimer's disease，heart disease，stroke，arthritis，diabetes，burns and spinal cord damage．
However，stem cell research is extremely controversial．The most effective stem cells do not come from adults but from embryos （胚胎） created in laboratories and which are just a few days old．Many people have religious or ethical objections to growing embryos，even if they can be used to cure diseases．

66．The underlined word"it"in the first paragraph probably meansB．
A．the way to develop the stem cell
B．the first organ transplant with the new technology
C．a(chǎn) new technology that can cure all diseases
D．the discovery of a new stem cell
67．According to the text，stem cellsC．
A．a(chǎn)re the most successful medical breakthrough
B．a(chǎn)re not designed to serve special aims
C．can be developed into various cells
D．only come from donors
68．Which of the following is Not True about Claudia Castillo？D
A．Her operation had been done successfully．
B．Drugs were used in her transplant．
C．Her own cells were used in the transplant．
D．She was tricked by the scientists．
69．It can be inferred from the text thatA．
A．transplant operations could be widely used with time going on
B．drugs taken by transplant patients have few bad side-effects
C．most people are strongly against growing embryos
D．scientists believe stem cells are the best choice now
70．Which of the following might be the best title for the passage？C
A．A Lucky Patient                    B．Stem Cell Research
C．The New Stem Cell Technology       D．Arguments Against Organ Transplant．

分析 本文屬于說明文閱讀，作者通過這篇文章主要向我們描述了醫(yī)生成功地利用了新的干細(xì)胞技術(shù)成功地進(jìn)行了世界上第一次器官移植，干細(xì)胞移植可能隨著時(shí)間的推移廣泛應(yīng)用．

解答 66．B．詞義猜測題．根據(jù)文章第一段"Surgeons in Spain have successfully carried out the world's first organ transplant using new stem cell technology"西班牙的外科醫(yī)生成功地利用了新的干細(xì)胞技術(shù)成功地進(jìn)行了世界上第一次器官移植；可知是指器官移植的新技術(shù)；故選B．
67．C．細(xì)節(jié)理解題．根據(jù)文章第三段"But stem cells are different．They are very young，and in the laboratory scientists can grow them into different types of cell"可知干細(xì)胞可開發(fā)成各種細(xì)胞；故選C．
68．D．細(xì)節(jié)理解題．根據(jù)文章倒數(shù)第三段"doctors were able to trick her body into thinking the new windpipe was her own organ．Five months on，Claudia Castillo is in perfect health"醫(yī)生能夠讓她的身體變成了思維的新的氣管被自己的機(jī)關(guān)．五個(gè)月后，Claudia Castillo在完美的康復(fù)；可知醫(yī)生欺騙了她是錯(cuò)誤的；故選D．
69．A．推理判斷題．根據(jù)文章倒數(shù)第二段"This ground-breaking procedure could be used in other transplant operations in the future"可知干細(xì)胞移植可能隨著時(shí)間的推移廣泛應(yīng)用；故選A．
70．C．標(biāo)題推斷題．通讀全文，可知文章主要講了醫(yī)生成功地利用了新的干細(xì)胞技術(shù)成功地進(jìn)行了世界上第一次器官移植，干細(xì)胞移植可能隨著時(shí)間的推移廣泛應(yīng)用；因此最佳標(biāo)題為新的干細(xì)胞技術(shù)；故選C．

點(diǎn)評(píng) 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力，做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句，和題干進(jìn)行比較，再做出正確的選擇．在做推理判斷題不要以個(gè)人的主觀想象代替文章的事實(shí)，要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷．

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A．he should be allowed to choose his own toys．
B．he should be given the same toys．
C．he should be given fewer and fewer toys．
D．he should be given different toys．
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A．determine his character
B．will not change after the age of three．
C．partly determined the standard he is likely to reach
D．to a large extent determine the choice of toys
51．We learn from the passage that a child has boundless curiosityB．
A．when he is two                    
B．when he is around four
C．when he is six                     
D．when he is eight
52．The passage is mainly aboutA．
A．the role of play in a child's development
B．the importance of schooling
C．the importance of pre-school education
D．the choice of toys for youngster．

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科目：高中英語 來源： 題型：選擇題

18．We should realize the fact that when you graduate from university，you are still not prepared for the possible situations ______ we may face in the working world．（　　）
A．whereB．whenC．thatD．what

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