題目列表(包括答案和解析)
One genetic mutation(基因突變)occurs on average for every 15 cigarettes that a typical lung-cancer patient smokes, according to a study that has found for the first time all of the mutations happen during the lifetime of a cancer patient.
Scientists have completed a full genetic examinations of the genomes（基因組） of cancer patients, and hope the information will lead to a basic understanding of the causes of cancer—and possibly drugs and treatments—by making out the mutations that turn a healthy cell into a cancerous tumor cell.
They studied a lung-cancer patient who had about 23,000 DNA mutations in his lung cells that were connected with exposure(暴露) to the toxins found in cigarette smoke and had built up over his lifetime.
They also looked at a patient with malignant melanoma(惡性黑色腫瘤), the most dangerous form of skin cancer, who had got 30,000 special mutations known to be connected with exposure to sunlight.
Scientists believe this new finding into the genetics of cancer will finally lead to new drugs and perfect treatments that aim at the specific changes to the gene that cause the disease, as well as new techniques for discovering following cancers that have escaped from treatment in other parts of the body.
“For the first time, we have a complete map of all mutations in a cancer cell,” said Dr. Peter Campbell, who led the Cancer Genome project to work out the whole DNA system of tumor cells in order find the mutations.
A similar method was performed on the cells of a patient with skin cancer, which is how the researchers were able to show that the malignant skin cells contained changes that resulted from exposure to light.
“These are the two main cancers in the developed world for which we know the chief exposure. For lung cancer it is cigarette smoke, and for malignant melanoma it is exposure to sunlight,” Professor Campbell said.
1.What can the genetic examination of the genomes of cancer patients be used for?
A.To help the professors to win the Nobel Prizes.
B.To advance the study of reason and cure of cancer.
C.To make the medicine industries earn more money.
D.To help the cancer patients reduce their pain.
2.The underlined word in the third paragraph can be placed by_____.
A.smoke B.sunlight C.cell D.poison
3.Which of the following statements is right according to the passage?
A.The lung-cancer patient had 30,000 mutations in his lung cells.
B.The genetics of cancer will finally lead to new drugs soon.
C.It’s the first time that people mapped mutations in a cancer cell.
D.Dr. Peter tries to invent a new drug with the DNA system.
4.What’s the similarity between malignant melanoma and skin cancer of patients?
A.Their smoking too much in daily life.
B.Their receiving too much sunshine.
C.Their refusing to accept treatment.
D.Their interest in travelling abroad.
I had been to several doctors as a child, but I have a special place in my heart for Dr. Vincent. He was a Pediatric Cardiologist at UCLA back in 1971 who saved my life. I was eight years old at the time with a severe heart problem and I needed heart surgery. My Mom did not have the money, and without the surgery there was a real good chance I would not live to be thirteen years old. After contacting several organizations Dr. Vincent was able to get financial help for me through United Way, a Crippled Children’s Organization.
Dr. Vincent was a handsome man; he was also very gentle and caring. I remember being in the hospital for an Angiogram test, and during the procedure I was crying terribly, so the medical staff called in Dr. Vincent to calm me down, and he was able to comfort me when no one else could. Then the time came for me to have heart surgery; there was a fifty- percent chance that I would not make it through the surgery because it was experimental. At the time I was only the second or third person to have this procedure done. I was absolutely terrified, and again Dr. Vincent reassured me he would see to it that everything would be all right.
I had a lot of confidence and trust in Dr. Vincent; He came to see me after the surgery, which was extremely painful but very successful, and brought me a stuffed animal. I was so surprised to get this gift from Dr. Vincent; I gave him a hug. I guess Dr. Vincent must have known I was feeling very lonely and scared. You see, I had no family or friends visit me while I was in the hospital except for my Mom, and I am not sure why. I do know one thing; I had a wonderful doctor who took the time to help a scared little girl who felt all alone.
This was twenty eight years ago, so wherever you are Dr. Vincent, I want to thank you for not only saving my life, but you helped me live a normal productive life, and for showing me that you truly cared, for that I will be eternally grateful to you.
Why did Dr. Vincent have a special place in her heart? Because________.
A. Dr. Vincent was handsome
B. Dr. Vincent was caring and kind
C. Dr. Vincent carried out the operation.
D. Dr. Vincent offered the money the operation needed.
Dr. Vincent was called in during my test to ________________.
A. feed her B. comfort her C. scare her D. have the surgery.
Which of the following is true except ___________.
A. the operation was experimental. B. she didn’t trust in Dr. Vincent
C. the operation would be extremely painful D. she felt scared and all alone
How did Dr. Vincent get the money for the operation?
A. He collected it in the hospital. B. He saved the money day by day
C. He got help from an organization. D. He borrowed the money from his friends
Moving in with a boyfriend causes women to eat more unhealthily and put on weight. But the opposite is true for men, whose long-term health benefits when they move in with a female partner.
Dieticians at Newcastle University said both partners try to please one another, and so change their dietary habits to suit their other half.
It leads men to eat more light meals, such as salads, fruit and vegetables, while women choose to make creamier, heavier dishes curry or rich pasta sauces, which may please their partner.
Women still have the strongest long-term influence over the couple’s diet and lifestyle, as they still have the traditional role of shopper and cook in most households.
The report, by Newcastle University’s Human Nutrition Research Centre, reviewed the finding of a variety of research projects from the UK, North America and Australia, which looked at the eating and lifestyle habits of couples.
The research shows that women are more likely to put on weight and increase their consumption of foods high in fat and sugar when they move in with their partner.
Women also use food as a comfort when dealing with emotional stress and have been found to gain weight when a relationship ends, while the same finding has not been observed in men.
Many couples reported food as being central to their partnership, and eating together in the evening was particularly important to many.
Report author and registered dietician Dr. Amelia Lake said, “The research has shown that your partner is a strong influence on lifestyle and people who are trying to live healthier lives should take this factor into consideration.”
41. According to the passage, moving in with a girlfriend, men _______.
A. have few changes of their dietary habits
B. have to eat more unhealthy foods
C. don’t like foods high in fat and sugar at all
D. try to eat foods that their girlfriends like
42. The underlined word “light”(in Paragraph 4 ) probably means ________.
A. not very heavy
B. less in fat and sugar
C. gentle
D. not serious or important
43. According to the report by Newcastle University’s Human Nutrition Research Centre, ________.
A. women put on weight only because they want to suit their other half
B. when men are faced with emotional stress, they will change their dietary habits
C. eating together in the evening is a good way to communicate for couples
D. it is wrong to change your dietary habits to suit your partner
44. From the passage, we can infer that _________.
A. women should pay more attention to their partner’s influence on them
B. more men will play roles of shopper and cook in most households
C. couples will not change their dietary habits and lifestyle to please their partner
D. long-term health of men benefits when they move in with a female partner
45. What would be the best title for the passage?
A. Don’t be silly any more, women!
B. Which are better dietary habits?
C. Boyfriends make you fat
D. Dr. Amelia Lake and his study
(10·陜西A篇)
A
| Ask Dr ? Jeffers | This month Dr. Jeffers is answering questions about the human brain and how it works. |
| Dear Dr. Jeffers, One of my colleagues, Felix Moeller, told me that scientists are learning to use computer to ‘read minds’. Is there any truth to this story/ —Jane Leon, New York, USA Dear Ms. Leon, Well, a lot of research is being conducted in this area, but so far, the brain scanning equipment and corresponding computer programs haven’t been able to actually read thoughts. In one experiment, test subjects（受試者）were connected to scanning equipment and shown two numbers on a screen. They were then asked to choose between adding or subtracting（減）the two numbers. Using this method, researchers were able to follow brain processes and make the correct assumptions（假設(shè)）70 percent of the time. It’s not quite mind reading, but it’s certainly a first step. —Dr. J. | |
| Dear Dr. Jeffers, My three-year-old son loves it when I dig my fingers into his sides and tickle （胳肢）him until he laughs uncontrollably. The other day I noticed him trying to tickle himself but he couldn’t do it. Why not? —Glenn Lewis, Vancouver, Canada Dear Mr. Lewis, It’s because of how the brain works. The brain is trained to know what to pay attention to and what to ignore. It causes us to ignore physical feelings we expect to happen, but it causes a mild panic reaction when there is an unexpected feeling. For example, you don’t notice how your shoulder feels while you’re walking down the street. But if someone comes up behind you and touches you lightly on the shoulder, you may jump in fear. It’s that unexpected part that causes the tickle reaction. —Dr. J. | |
46. What can we learn from the answer to the first question?
A. Some equipment is able to read human minds.
B. Some progress has been made in mind reading.
C. Test subjects have been used to make decisions.
D. Computer programs can copy brain processes.
47. People laugh when tickled by others because the feeling is _______.
A. unexpected B. expected C. comfortable D. uncomfortable
48. Who has got a little child according to the text?
A. Ms. Leon B. Mr. Lewis C. Mr. Moeller D. Dr. Jeffers
49. According to the text, Jeffers is probably _______.
A. a computer programmer B. a test subject
C. a human brain expert D. a medical doctor
第二部分 閱讀理解（共兩節(jié)，滿分40分）
（共15小題，每小題2分，滿分30分）
閱讀下列四篇短文，從每小題后所給的A、B、C、D四個(gè)選項(xiàng)中，選出最佳選項(xiàng)，并在答題卡上將該選項(xiàng)涂黑。
| Ask Dr ? Jeffers | This month Dr. Jeffers is answering questions about the human brain and how it works. |
| Dear Dr. Jeffers, One of my colleagues, Felix Moeller, told me that scientists are learning to use computer to ‘read minds’. Is there any truth to this story/ —Jane Leon, New York, USA Dear Ms. Leon, Well, a lot of research is being conducted in this area, but so far, the brain scanning equipment and corresponding computer programs haven’t been able to actually read thoughts. In one experiment, test subjects（受試者）were connected to scanning equipment and shown two numbers on a screen. They were then asked to choose between adding or subtracting（減）the two numbers. Using this method, researchers were able to follow brain processes and make the correct assumptions（假設(shè)）70 percent of the time. It’s not quite mind reading, but it’s certainly a first step. —Dr. J. | |
| Dear Dr. Jeffers, My three-year-old son loves it when I dig my fingers into his sides and tickle （胳肢）him until he laughs uncontrollably. The other day I noticed him trying to tickle himself but he couldn’t do it. Why not? —Glenn Lewis, Vancouver, Canada Dear Mr. Lewis, It’s because of how the brain works. The brain is trained to know what to pay attention to and what to ignore. It causes us to ignore physical feelings we expect to happen, but it causes a mild panic reaction when there is an unexpected feeling. For example, you don’t notice how your shoulder feels while you’re walking down the street. But if someone comes up behind you and touches you lightly on the shoulder, you may jump in fear. It’s that unexpected part that causes the tickle reaction. —Dr. J. | |
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