【正文】 They constitute a growing and global public health problem. WHO suggests that countries should be prepared to implement hospital infection control measures to limit the spread of multidrug resistant strains (菌株) and to reinforce national policy on prudent use of antibiotics, reducing the generation of antibiotic resistant bacteria. 　　An article published in 7he Lancet Infectious Diseases on 11 August 2010 identified a new gene that enables some types of bacteria to be highly resistant to almost/all antibiotics. The article has drawn attention to the issue of AMR3 (antimicrobial resistance), and, in particular, has raised awareness of infections caused by multidrug resistant bacteria. 　　While multidrug resistant bacteria are not new and will continue to appear, this development requires monitoring and further study to understand the extent and modes of transmission, and to define the most effective measures for control. 　　Those called upon to be alert to the problem of antimicrobial resistance and take appropriate action include consumers, managers of hospitals, patients, as well as national governments, the pharmaceutical (制藥的) industry, and international agencies. 　　WHO strongly remends that governments focus control and prevention efforts in the following areas like surveillance for antimicrobial resistance。 because the immune system recognizes transplanted tissues as foreign, it rejects them. The body will even reject nourishing proteins unless they are first broken down by the digestive system into their primary, nonantigenic building blocks. An antigen announces its foreignness by means of intricate and characteristic shapes called epitopes (抗原表位), which protrude (突出) from its surface. Most antigens, even the simplest microbes, carry several different kinds of epitomes on their surface, some may even carry several hundred. Some epitomes will be more effective than others at stimulating an immune response. Only in abnormal situations does the immune system wrongly identify self as nonself and execute a misdirected immune attack. 　　36 What is used to describe the munication network consisting of cells in the immune system? 　　A The immune system39。s purpose of writing this article is to advise people 　　A to buy mobile phones 　　B to use mobile phones less often 　　C to update regular phones 　　D to stop using mobile phones 第二篇 Immune Functions 　　The immune system is equal in plexity to the bined intricacies of the brain and nervous system. The success of the immune system in defending the body relies on a dynamic regulatory munication network consulting of millions and millions of cells. Organized into sets and subsets, these cells pass information back and forth like clouds of bees flying around a hive(蜂巢). The result is a sensitive system of checks and balances that produces an immune response that is prompt, appropriate, effective, and selfomitting. 　　At the heart of the immune system is the ability to distinguish between self and nonself. When immune defenders encounter cells or organisms carrying foreign of nonself molecules, the immune troops move quickly to eliminate the intruders (入侵者). Virtually every body cell carries distinctive molecules that identify it as self. The body39。t remember simple tasks 　　B he disliked using mobile phones 　　C he was tired of talking on his mobile phone 　　D his employer39。re convenient 　　D they39。re popular 　　B they39。s best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it39。s doctor didn39。 第一篇 Cell Phones: Hang Up or Keep Talking? 　　Millions of people are using cell phones today. In many places it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of municationhaving a mobile phone shows that they are cool and connected. 　　The explosions around the world in mobile phone use make some health professional worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone panies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health. 　　On the other hand, why do some medical studies show changes in the brain cells of some people who use mobile phones? Signs of change in the issues of the brain and head can be detected with modern scanning (掃描) equipment. In one case, a traveling salesman had to retire at a young age because of serious memory loss. He couldn39。s not only naps that you should avoid. Try not to drink a lot of alcohol, take nicotine(尼古丁), do mentally intense activities like preparing for exams or doing exercise in the evening. Some people swear that drinking coffee never stops them from sleeping like a log, whereas others will never go near the stuff for fear of being awake all night. However, the best advice for most is to avoid it in the evening, and if you drink coffee before a nap, remember you are likely to awaken as soon as the caffeine starts kicking in. 　　23 Paragraph 1 _________ 　　24 Paragraph 2 _________ 　　25 Paragraph 3 _________ 　　26 Paragraph 4 _________ 　　A What should we avoid? 　　B How much sleep do we need? 　　C Which is better, being an owl or a lark? 　　D Why do we need sleep? 　　E What makes people owls or larks? 　　F What helps us fall asleep? 　　27 Sleep helps brain to _________. 　　28 Parents with very young children tend to _________ 　　29 A good lifestyle means one can _________. 　　30 It is good advice for most people to _________. 　　A sleep enough to bring mo