题目内容
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 (捐献的) 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 new technology that can cure all diseases
D.the discovery of a new stem cell
67.According to the text,stem cellsC.
A.are the most successful medical breakthrough
B.are 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 本文属于说明文阅读,作者通过这篇文章主要向我们描述了医生成功地利用了新的干细胞技术成功地进行了世界上第一次器官移植,干细胞移植可能随着时间的推移广泛应用.
解答 66.B.词义猜测题.根据文章第一段"Surgeons in Spain have successfully carried out the world's first organ transplant using new stem cell technology"西班牙的外科医生成功地利用了新的干细胞技术成功地进行了世界上第一次器官移植;可知是指器官移植的新技术;故选B.
67.C.细节理解题.根据文章第三段"But stem cells are different.They are very young,and in the laboratory scientists can grow them into different types of cell"可知干细胞可开发成各种细胞;故选C.
68.D.细节理解题.根据文章倒数第三段"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"医生能够让她的身体变成了思维的新的气管被自己的机关.五个月后,Claudia Castillo在完美的康复;可知医生欺骗了她是错误的;故选D.
69.A.推理判断题.根据文章倒数第二段"This ground-breaking procedure could be used in other transplant operations in the future"可知干细胞移植可能随着时间的推移广泛应用;故选A.
70.C.标题推断题.通读全文,可知文章主要讲了医生成功地利用了新的干细胞技术成功地进行了世界上第一次器官移植,干细胞移植可能随着时间的推移广泛应用;因此最佳标题为新的干细胞技术;故选C.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
A. | content | B. | atmosphere | C. | competition | D. | assistance |
A | Angry Poo Game Are you looking for a free game with amazing graphics,100's of levels,and completely original?Well then,Angry Poo may not be for you!This is a free game that might make you laugh for a few minutes.Laugh your head off at the hilarious sound effects. | |
B | Bingo The classic bingo game with balls drawn from a basket,a lightboard showing the balls drawn to date and three cards on which you mark your squares as the numbers are drawn.It may not be the prettiest bingo game you can play,but it is the most functional! | |
C | Country Guess A simple game where you are given hints about a country's name and you have to guess what the country is.Test you geography skills.It's a wonderful game that helps your learning of geography and entertains you at the same time while you're playing. | |
D | Crazy Taxi You're a crazy cabbie racing against the clock!Swerve to avoid other cars…or just jump right over them!You must get to the checkpoint no matter what!It's designed for the lovers of cars,and it also helps you develop driving skills too! | |
E | Attack of the Flying Goats In this Adventure Game your mountain town is being attacked by a seemingly endless number of Flying Goats sticking their tongues out and wagging them at everyone!You've been recruited to take on the adventure of holding these creatures back at all costs. | |
F | Developer Rescue The year is 2020.Apple Inc has finally decided to kidnapping the lead jailbreak developers they have hated for so many years.Upon learning of Apple's plans you decide to rescue the developers before Apple can succeed in kidnapping them. |
46.Frank wishes to get a game for his new Apple phone.He loves to play those kinds of games in which his role is a pilot,a brave soldiers or a tough man of other kinds who fight to rescue people in trouble.F
47.Charlie wants to download a game with different levels of difficulty for his mobile phone.He wants it for free and hopes that it will bring him lots of laughter.Of course,he wishes it would have wonderful visual and sound effect.A
48.Eddie is a young man with sporting blood.He likes to do things that can bring him challenges and adventures.So when it comes to mobile phones games,he definitely wants to get one adventure games for his phone.E
49.For Brad Green,no games can attract him more than those related to cars.Now he would love to download a car racing games for his new phone.And of course,he wishes to get one that can help to improve his driving skills at the same time.D
50.Tony loves to play games with his new cell phone.It seems that nothing can prevent him from playing those games,his father Mr.Greg has got a new idea instead.He wants to find a game that could help with Tony's knowledge of geography.C.