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Guangzhou, Guangdong Province, who has led the research.
After five years of research, involving over 100 researchers from different institutes, the scientists identified methylation in DNA circulating in the blood that is related to liver cancer. Methylation is an abnormal genetic change that can cause cancer, Xu said. Using samples of DNA from a large group of 1,098 liver cancer patients and 835 healthy people for comparison, they constructed a diagnostic prediction model that showed high sensitivity and accuracy, Xu said in the study, which was published in Nature Materials , a science journal, on Monday.
Currently, a method that is often used for diagnosis of early-stage liver cancer is to
check the level of alpha fetoprotein (甲胎蛋白),which normally remains at very low level in the blood but increases significantly in many liver cancer patients. But the method is ineffective for 40 percent of those who have liver cancer, and 20 percent of patients with no liver cancer are diagnosed as having the disease because rising alpha fetoprotein levels can also be caused by factors such as pregnancy and so on, Xu said.
But using the new method, about 85 percent of cancer patients can be diagnosed and only about 7 percent of patients are misdiagnosed, he said. The new method is more accurate and much simpler and does not require other tests, Xu said. The center has
developed tests for liver cancer based on the research, and they will be used on people with a high risk of the disease at Sun Yat-sen University’s Cancer Hospital, he said. And the tests are expected to be widely available for clinical use by the end of the year, he said. 43. What effect does the new technology produce?
A. The death rate of liver cancer will decrease. B. It saves the trouble of the doctors and patients. C. Xu Ruihua will be famous overnight. D. There will be less patients of liver cancer.
44. What is the disadvantage of the current method —checking the level of alpha fetoprotein? A. It is not effective at all. B. It involves high risks. C. It is time-consuming. D. It leads to misdiagnosis sometimes. 45. The researchers could adopt blood test to check liver cancer because of discovery of A. samples in DNA B. methylation in DNA C. alpha fetoprotein D. genetic change 46. What can we infer from the last paragraph?
A. The rate of misdiagnosis is comparatively high with the new method. B. The researchers are optimistic about the new method. C. The research result has been put into practice. D. The blood test is not effective enough.
D
Reading a book and watching a film are two very different experiences, but expectations can be high when a film of a favourite book is made. There are very many times I have been disappointed by a film of a book I love. So maybe highly regarded books do not always make good films, it is safe to say that great movies may be made from not particularly good books.
The source material may be anything from classic novels, short stories, comic books and stage plays, as well as non-fiction such as biography and autobiography, even those written by ghostwriters. All can work well, but why do many adaptations and indeed remakes fail with both cinema audiences and critics?
A key question is obviously how close to the original the film is. Since a typical film is only around two hours long, it becomes a question of what to leave out, and how to script the dialogue. Sometimes there may be changes to the plot, additions and even different endings to please producers, directors and test audiences. I, like many people, have often left the cinema feeling “the film is not like the book”.
Another problem area is the cast. Whether suitable actors are found or not can mean the difference between
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success and failure. Readers of the book use their imaginations to visualize characters and have very definite ideas about how characters look and sound. This is where I think many film adaptations fall down.
Some books are just too difficult to film for technical reasons, although movies like The Life of Pi are changing this perception. The impact of CGI technology has had a huge impact on the movie industry and allowed the previously unfilmable to become a reality.
Sometimes authors are very involved in the process and many may even be the screenwriters. This can actually be a bad thing because they may be too close to the material and find it difficult to adapt. At other times they are not the screenwriters, and there are instances where writers have been very unhappy with the film versions of their work. Roald Dahl and Stephen King are examples of this. Even more extreme was novelist J. D. Salinger who made sure no film versions of his popular novels could ever be made. In this situation, it is clear viewers will not be disappointed.
47. In what situation adaptations from books to films possibly satisfy the audiences?A. Adaptations of lower expectation from audiences. B. Adaptations of popular books. C. Adaptations of good books.
D. Adaptations of books that audiences love.
48. Novelist J. D. Salinger is mentioned in the last paragraph in order to A. tell us how disappointed the audiences are
B. show that many authors are involved in the process of making films C. prove that authors may not necessarily be good screenwriters
D. show some writers are against the idea of making books into films 49. Which of the following presents the correct structure of the passage? 1= Introduction CP = Central Point P= Point Sp = Sub-point C= Conclusion
50. What is the purpose of the passage?
A. To argue that good books should be adapted to films.
B. To persuade the audiences to accept the adaptations from books to films. C. To explain the reasons why many adaptations from books to films failed. D. To inform that adaptations should be based on various kinds of books.
第二节(共5小题;每小题2分,共10分)
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根据短文内容,从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Are you satisfied with the shape of your nose? 51 This is according to a recent study carried out by scientists from Pennsylvania State University, US. They found that climate played a key role in shaping our noses.
The findings were based on an examination of the size and shape of noses of 476 people
from four regions—West Africa, East Asia, South Asia and Northern Europe. 52 With the help of it, the researchers can get the results more accurately.
“People have thought for a long time the difference in nose shape among humans across the world may have arisen as a result of natural selection because of climate,” Arslan Zaidi, one of the lead authors of the study said. But while previous studies were based on measurements from human skulls, Zaidi and his team looked at nose shape itself.
53 They looked at the width of the nostrils (鼻孔),the distance between nostrils,the height, length and angle (角度)of the nose, and the size of the nose and the nostrils.
The results showed that wider noses are more common in warm and humid climates, while narrower noses are more common in cold and dry climates. 54 This? in turn, led to a gradual decrease in nose width in populations living far away from the equator.
According to Zaidi ? now we’ve only known a little about the relationship between climate and nose shape. 55 Through further study, researchers believe that they will
get more findings which are valuable in understanding potential health issues in the future. A. There are a variety of nose shapes across the world.
B. They examined seven nose traits (特征)that differ across populations and geographical
areas.
C. But more study is still needed to test the link between them. D. And 3-D facial imaging technology is used in the study. E. If not, the climate may be to blame, not your parents. F. The nose shapes are determined by many factors.
G. That, Zaidi said, could be because narrower nose help to increase the wetness content of
air and warm it.
第三部分:书面表达(共两节,35分) 第一节(15分)
假设你是红星中学高三学生李华,你的英国朋友Jim在给你的邮件中提到他想学习中国的一种传统艺术,请你给Jim回信推荐一种。内容包括:
1. 该艺术的名称;
2. 该艺术形式的特点; 3. 推荐原因。
注意:词数不少于50。
(请务必将作文写在答题卡指定区域内) 第二节 (20分)
假设你是红星中学高三学生李华,你班同学上周参加了一次游学活动。请根据以下四幅图的先后顺序,以“Experiencing the Silk Road”为题,给校刊“英语角”写一篇英文稿件,介绍你参加本次活动的经历与感受。
注意:词数不少于60。
提示词:大雁塔Dayan Pagoda; 莫高窟Mogao Caves
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(请务必将作文写在答题卡指定区域内)
通州区高三年级模拟
英语试卷参考答案及评分参考
2018年4月
第一部分:知识运用(共两节,45分) 第一节 单项填空(共15小题;每小题1分,共15分) 1. A 2. C 3. B 4. A 5. C 6. A 7. B 8. B 9. D 10. A
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