[恒心][好卷速递]四川省成都外国语学校2012届高三第六次月考英语(4)

The researchers took skin cells from a patient with a mutation (变异) in a gene called alphal-antitrypsin (a-l抗胰蛋白酶). This gene makes a protein that protects our bodies against inflammation (炎症). People with changed or damaged

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alphal-antitrypsin are not able to release the protein correctly from the liver, so the protein is trapped there and eventually leads to liver cirrhosis (肝硬化).

Scientists then used an advanced technique to cut away the faulty section of DNA from a stem cell and replace it with a corrected one, according to the journal. The stem cells went on to produce fresh and healthy liver cells with normal protein levels. Scientists put the new liver cells into mice and found that they worked very well. Stem cells are the life source of all other cells in the body. They could transform medicine, providing treatment for blindness, spinal cord injuries and other serous injuries. They could also be used to produce new cells for damaged organs.

David Lomas, a Cambridge biology professor who worked on the team, said: “If we can use a patient’s own skins cells to produce liver cells that we can put back into the patient, we may prevent the future need for transplantation. ”

57. What is the best title of this passage? A. How to transplant liver for patients B.A new way to transplant livers for patients C. The difficulty in curing liver patients D. New life for liver patients

58. The first paragraph is written to _______.

A. show how difficult it is to cure liver disease B. tell us what a liver transplant involves C. introduce a potential cure for liver disease D. show how serious liver disease can be

59.Why do some people get liver cirrhosis according to the article? A. Because their bodies are lacking in alphal-antitrypsin.

B. Because their skin cells are not able to protect against inflammation. C. Because the alphal-antitrypsin in their bodies is changed or damaged. D. Because their liver releases too high a level of protein. 60. What can be inferred from the passage?

A. Stem cells keep liver cells healthy and fresh.

B. Equaling medicine, stem cells can cure blindness, spinal cord injuries and other serous injuries

C. Stem cells can replace the damaged organs.

D. All other cells in the body can’t work well without stem cells

IV. Complete the dialogue. (10分)

A: How are you today?

B: I just had a test and I’m feeling very nervous. A: 61

B: But I’m feeling tired.

A: Let’s go and get a coffee together. That will help you refresh yourself! B: OK. I feel like sitting down and having a chat. 62 本卷第9页（共12页）

A: Oh, you know me. I’m always happy! If I think I’m getting into a bad mood,

63

B: Good idea. I usually just sit at home alone and get increasingly moody.

A: 64 I’m always excited about going out to social events and meeting

people. B: 65

A. How have you been recently? B. I hate spending too much time at home.

C. Perhaps I’m being too shy. D. I’ve been chatting online with friends.

E. I call some friends and have a chat.

第Ⅱ卷

F. What have you been doing V. Error correction.

(15分)

recently?

I'm a senior three

G. It’s no use worrying about it now. student．I often do bad

in my _66__

exams，so I have been trying to catch up the others． _67__ But I'm such concerned about my marks that sometimes _68__ l cannot eat or sleep well at a night．I’m afraid that _69__ I may get low marks in the tests again even if I work _70__ hard than before． I have no courage to face low marks． _71_ I cannot fix my mind to my study, whenever I think of _72__ this. It is obvious that the worry had a bad effect on _73_ my school works. I’m feeling very sad. Would you _74__ please tell me what I should deal with my worry? _75__

VI. Writing. (35分)

假设你是晨光中学的高中生李华。你校拟选拔一批优秀学生，利用暑期到晨曦希望小学为学生辅导英语。你希望参加此活动。请根据以下提示，用英语给校评选组写一封申请信：

● 对此活动的认识（如对本人、……的益处等） ●个人优势 ●你的计划

注意： 1.词数不少于100；

2.可适当加入细节，以使内容充实、行文连贯； 3. 信的开头和结尾已给出，不计入词数。

参考词汇：晨曦希望小学 Chenxi Hope School

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