Great scientists（Period 2　Reading）

s: since a lot of people die of bird flu, i think bird flu today is similar to cholera.now the cause of bird flu is not quite clear, but scientists devote their lives to finding out the cause and the cure.s: in my opinion, sars is quite similar to cholera.sars is spread by germs in the air while cholera is spread by germs in the polluted water.a lot of people have been dying�� of sars.��ss: ...��t: this time, the first/second group won the competition.congratulations!��t: i’d like you to write a short passage about john snow according to the passage.��

the design of the writing on the blackboard

unit 1　great scientist

period 2　readingmain idea of each part教學(xué)資源集散地。" type="#_x0000_t75" ole=> scientific report by john snowthe problemthe causeidea 1idea 2the methodthe resultsidea 1 or 2?why?the conclusion

research and activities use your imagination to write a short passage about what may happen in the future. imagine if you were to find out the causes of sars, how would you do and what methods would you use to test your theory?you can imitate the structure of the reading passage, but you must make full use of your imagination to write what is different from the cause of cholera.

reference for teaching

who: cholera in chad could spread to sudan’s darfurthe government of chad is calling for international assistance to fight a cholera outbreak in the country. the world health organization says it is concerned that the disease could spread to the darfur region of western sudan, which is already struggling with his own humanitarian crisis due to violence. the government of chad says more than cases of cholera have been reported in the country, and it expects that number to more than double by the end of the rainy season in september. although, the majority of cases in chad are being reported in the region surrounding the capital in the west. but the who says it is deeply worried that it could spread to neighboring�� sudan and the refugee camps sprawled across its troubled western region of darfur. �� an expert with the who, claire-lise chaignat, says the disease is endemic to mainly poorer areas that do not have access to safe water supplies. “another factor is also the refugees�� living in refugee camps where they are living in close communities with not enough water and no proper sanitation, ”she said. “so, that is also a high risk for the community. so, for example, we are very much scared that, now, in the crisis in darfur, or in the eastern chad, there might be a cholera outbreak. in case the germ occurs because the water and sanitation situation is so bad that it’s really, a real risk that we might have a cholera outbreak there. ”�� chad has been battling a potential locust scourge in the west, and has received an influx of refugees in the east from the fighting taking place in the darfur region. the government is asking for nearly $200 000 in aid to try to curb the spread of cholera. �� cholera outbreaks are being reported throughout much of central and western africa this year, including cameroon, sierra leone, guinea and the democratic republic of congo. �� the disease spreads quickly in areas where water supplies are contaminated and causes dehydration within days. it can lead to death if victims are untreated within a week. �� carrie giardino, voa news, abidjan. �� the strains of cholera bacteria prevalent in china make change and experts warn for possible outbreak. �� in china’s database of epidemic status, a painting depicted with the three epidemic waves documented in figures the status of cholera epidemic in the past 40 years throughout the country. each time of fluctuations in the epidemic graph was related to the changes of cholera bacterial typing. the latest data of monitoring showed that the dominating bacterial type of cholera epidemics had another change emerging with a unique epidemic bacterial type. specialists of the chinese center for disease control (cdc) warned that the possible aftermath of epidemic situation resulted from the changes of bacterial type of cholera must be dealt with intensive precaution. �� academician gao shouyi of chinese cdc pointed out that the inaba 1d strain emerged predominantly since last year, had the character of wide distribution of the same strain, and its 16s ribosomal gene probe hybridization belonged to the same strain seen in the majority of the provinces. in a certain location of the southern provinces, the eltor strain, in addition to the occurrence of inaba 1d strain, also partially emerged with the 1c, 1b, 1f strains;however, its ribosomal typing was identical with the predominant epidemic inaba 1d strain, all came from the same clone line. in certain places of the southern west area the ogawa type that mutated into inaba type emerged;and the inaba strain occurred in was not the continuation of the inaba strain of ;additionally in another location of the south western area an ogawa 6b unique epidemic strain occurred. �� from 18-19 april, a working conference of national prevention and treatment of gastrointestinal infectious diseases was held in beijing jointly sponsored by the chinese cdc and the consultative committee of diarrhea specialists of ministry of health. the related specialists and the leading members of the cdc were organized to carry out an outspread discussion upon the subject of prevention and treatment of infectious diseases of the gastrointestinal tract, headed by cholera. on april 17th, the cdc issued notification to the cdc system throughout the country to carry out the weekly report of cholera epidemics and the acts of reports of the scattered cases;measures for augmentation of monitoring and retrieve of epidemic sources were also arranged.