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1、. . . .Unit 2Custom makes all things easy.有个好习惯，事事皆不难。学习内容题 材词 数建议时间得分统计做题备忘Part AText 1科普知识394/10Text 2商业经济396/10Text 3社会生活439/10Text 4科普知识401/10Part B生态环境612/10Part C文化教育473/10Part ADirections：Read the following texts. Answer the questions blow each text by choosing A,B,C or D.Text 1In 1967, in re
2、sponse to widespread public concern aroused by medical reports of asbestos-related deaths, the National Medical Research Council organized committee of inquiry to investigate the health threats associated with the use of asbestos in the building industry.After examining evidence provided by medical
3、researchers and building workers and management, the Council published a report which included advice for dealing with asbestos. The report confirmed the findings of similar research in the United States and Canada. Exposure to relatively small quantities of asbestos fibers, they concluded, was dire
4、ctly responsible for the development of cancers, asbestosis and related diseases. Taking into account evidence provided by economists and building industry management, however, the report assumed that despite the availability of other materials, asbestos would continue to play a major role in the Br
5、itish building industry for many years to come because of its availability and low cost.As a result, the council gave a series of recommendations which were intended to reduce the risks to those who might be exposed to asbestos in working environments. They recommended that, where possible, asbestos
6、 free materials should be employed. In cases where asbestos was employed, it was recommended that it should be used in such a way that loose fibers were less likely to enter the air.The report recommended that special care should be taken during work in environments which contain asbestos. Workers s
7、hould wear protective equipment and take special care to remove dust from the environment and clothing with the use of vacuum cleaner.The report identified five factors which determine the level of risk involved. The state and type of asbestos is critical to determining the risk factors. In addition
8、, dust formation was found to be limited where asbestos was used when wet rather than dry.The choice of tools was also found to affect the quantities of asbestos particles that enter the air. Machine tools produce greater quantities of dust than hand tools and, where possible, the use of the latter
9、was recommended.A critical factor takes place in risk reduction in the adequate ventilation of the working environment. When work takes place in an enclosed space, more asbestos particles circulate and it was therefore recommended that natural or machine ventilation should be used. By closely follow
10、ing these words of advice, it was claimed that exposure can be reduced to a reasonably practical minimum.1. Exposure to asbestos fibers can cause cancerA only when asbestos is used in building industry.B only when it is used in large quantities.C even if it is used in small quantities.D if it is use
11、d when wet rather than dry.2. Exposure to asbestos fibers is harmful to peoples healthA so the use of asbestos is limited.B but asbestos will continue to be used for a long time.C so other new kinds of materials are under development.D but they will not be so when ventilation devices are used.3. Evi
12、dence from the economists and the building industries shows thatA exposure to asbestos fibers is cancer-causing.B asbestos is in extensive use in building industry.C use of asbestos is being reduced gradually.D exposure to asbestos fibers can be reduced significantly.4. According to the text, which
13、of the following is true?A Choice of tools can not affect the quantities of asbestos particles that enter the air.B State and type of asbestos is meaningless to determining the risk factors.C Quantity of asbestos has no relation to the risk factors.D Ventilation plays an important role in reducing t
14、he harm brought by asbestos.5. It can be inferred from the text that the real danger comes fromA the asbestos dust that people take in.B the contact of the workers skin with asbestos particles.C the inferior quality of the asbestos itself.D the excessive use of man-made asbestos material. Text 2Its
15、a brand new world a world built around brands. Hard charging, noise making, culture shaping brands are everywhere. Theyre on supermarket shelves, of course, but also in business plans for dotcom startups and in the names of sports complexes. Brands are infiltrating（渗透）peoples everyday lives by sticking their logos on clothes, in concert programs, on subway station walls, even in elementary school classrooms.We live in an age in which CBS newscasters wear Nike jack
