题型:阅读理解 题类:常考题 难易度:普通
四川省成都市新都一中2018届高三上学期英语九月月考试卷
D
Scientists around the world are striving for effective detection of cancer in the early stages,which is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body,and a Chinese scientist may have found a quick way of knowing whether malignant tumors(恶性肿瘤)exist in a patient's body,with just one drop of blood.
Malignant tumors in early phases can be cured.However,it's extremely difficult to be aware of cancer in its early stages,as patients don't show obvious symptoms and thus it can only be found in its later stages,which is already too late,so to detect cancer early remains a global challenge for scientists.
Back in 1989,scientists have found a kind of heat shock proteins (HSP),named Hsp90α,which existed in human bodies and can be used as a cancer biomarker detection kit.Scientists around the globe have been working on it since then,and more than 10,000 journals have been published on accredited magazines,yet no one has actually turned their research results into medical products.
However,Luo Yongzhang and his team in Tsinghua University's School of Life Sciences in Beijing seemed to have cracked the code,after working on the problem since 2009.The team has produced an artificial Hsp90α protein for clinical use that gains structural stability by regrouping proteins.The test kit can diagnose multiple kinds of cancer by analyzing a drop of human blood.This means they are able to "create" the protein,in any quantity,and at any time they wish to.
The kit has since been used in clinical trials involving 2,347 patients at eight hospitals in China.It was the first clinical trial in the world to test if the protein could be a useful tumor biomarker for lung cancer,and it succeeded. Now,the kit has been approved to enter the Chinese and European markets,24 years after Hsp90α was discovered.
China is making great effort to protect its cultural relics. In early May, State Administration of Cultural Heritage (SACH) added 1,943 unmovable cultural relics sites to the list. So the number of these sites on this list will increase to 4,295.{#blank#}1{#/blank#}The newly added sites were reviewed(评审) by more than 130 experts. They spread around Shanxi, Henan, Hunan, Hebei and Jiangsu provinces, including 795 pieces of ancient architecture and 516 ancient ruins.{#blank#}2{#/blank#}In an interview, the head of the SACH said that new types of cultural relics sites have been newly listed to get protection at first, including industrial relics, rural architecture and cultural landscapes.{#blank#}3{#/blank#}For example, some are in the north China's Inner Mongolia Autonomous Region.Despite great achievements during the years of effort, problems still exist.{#blank#}4{#/blank#}Historic relics get stolen and antiques are taken abroad secretly.The head of the SACH said that people has faced a challenge to the protection of cultural relics for a long time. So, balancing the relationship between economic development and protection of history is important. {#blank#}5{#/blank#} He also used good examples of protection, describing how some cultural relics sites have become education bases for young people and popular tourist places, where a lot of people spend their holiday.
A. All of them need protecting as quickly as possible. B. They also include outstanding modern architecture. C. The SACH has found a total of 4,295 cultural relics. D. Many relics have been destroyed in the process of urban construction. E. Cultural relics sites should become positive factors to improve economic development. F. When talking about protecting the cultural relics, the head of SACH ordered some to be saved. G. Moreover, many of the new sites also include valuable cultural relics from ethnic minority regions(少数民族地区). |
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