人教课标必修五unitreadingppt课件

1、book 5 unit 1 great scientistscan you find out the answers to the following puzzles?task 1 a guessing gamewho is he?who is he?he has made a famous kite experiment.he learned a lot from it and invented lightningrod(避雷针避雷针).).he is benjamin franklinnever leave that until tomorrow, which you can do tod

2、ay.who is he?who is he?he is called the greatest scientist in the 20th century.he is famous for the theory of relativity.he is albert einsteinimagination is more important than knowledgewho is he?who is he?he invented electric bulbs.he made more than 1,000 inventions duringhis life.he is thomas alva

3、 edisongenius is one percent inspiration and ninety-nine percent perspiration.who is she?who is she?she is a woman scientist.she discovered radium( (镭镭) )and polonium(钋钋).in her life, she won the nobel prize twice.she is marie curienothing in life is to be feared. it is only to be understood.who is

4、he?who is he?he made the first telescope in the world.his observations show that the earth movesaround the sun.he is galileo galileiyou cannot teach a man anything. you can only help him find it within himself.1.which scientist discovered that objects in water are lifted up by a force that helps the

5、m float?archimedes (287-212 bc) an ancient greek mathematician & physicisttask 2 think and answer2.who wrote a book explaining how animals and plants developed as the environment changed?charles darwin (1808-1882) british author of the origin of species 3.who invent the first steam engine?a. thomas

6、newcomenc. thomas edisonb. archimedes4.who used peas to show how physical characteristics are passed from parents to their children?gregor mendel (1822-1884) czech (捷克人捷克人)5.who was the painter that studied dead bodies to improve his painting of people? last suppermona lisaleonardo da vinci (1452-15

7、19) italian artist6.who invented a lamp to keep miners safe underground?sir humphry davy (1778-1829)britishminiature(小型的小型的) miners safety lamp 7.who put forward a theory about black hole?stephen hawking(1942-)britisha brief history of time8.who invented the earliest instrument to tell people where

8、earthquakes happened?zhang hengseismographdraw a conclusionthink of a methodcollect resultsmake a questionfind a problemanalyse the resultsfind supporting evidencefind a problemmake a questionthink of a methodcollect resultsanalyse the resultsdraw a conclusionpre-reading 1. how to prove a new idea i

9、n scientific research?find supporting evidencepre-reading 21.what impresses you most in 2003?which person impresses you most during the sars?2.what other infectious diseases do you know?for example: when you eat some food that is not freshyou may feelmaybe you have got _.cholerajohn snow defeats “ki

10、ng cholera”some background information about john snow and cholerawho is john snow? a famous doctor in london. what happened to them? attended her as her personal physicianjohn snow 约翰约翰 斯诺（斯诺（1813 1858），），英国麻醉学家、流行病专家。他首次提出英国麻醉学家、流行病专家。他首次提出了预防霍乱的措施。了预防霍乱的措施。1854年，伦敦霍乱流年，伦敦霍乱流行，斯诺通过研究霍乱病死者的日常生活行，斯诺

11、通过研究霍乱病死者的日常生活情况，寻找到他们的共同行为模式，发现情况，寻找到他们的共同行为模式，发现了霍乱与饮用不洁水的关系，由于及时切了霍乱与饮用不洁水的关系，由于及时切断了二者的联系，有效制止了霍乱的流行。断了二者的联系，有效制止了霍乱的流行。john snow 约翰约翰 斯诺斯诺（1813 1858），英国麻），英国麻醉学家、流行病专家。他首次醉学家、流行病专家。他首次提出了预防霍乱的措施。提出了预防霍乱的措施。1854年，伦敦霍乱流行，斯年，伦敦霍乱流行，斯诺通过研究霍乱病死者的日常诺通过研究霍乱病死者的日常生活情况，寻找到他们的共同生活情况，寻找到他们的共同行为模式，发现了霍乱与饮用

12、行为模式，发现了霍乱与饮用不洁水的关系，由于及时切断不洁水的关系，由于及时切断了二者的联系，有效制止了霍了二者的联系，有效制止了霍乱的流行。乱的流行。four outbreaks of cholera in the 1830s and 1840s killed many people in england. in 1854, “the most terrible outbreak of cholera which ever occurred in the kingdom” began. it was so violent and sudden that 127people died in th

13、e first three days.the terrible cholerathe terrible cholerabacteria / germs of cholera name of illness cholera (霍乱霍乱) symptom(症状症状)severe vomiting (呕吐呕吐) and diarrhoea (腹泻腹泻) aftereffect(后果）后果）die quickly from a loss of liquidwhat was the cause of this illness? how did john snow find it out?fastread

14、ing:read the passage quickly and find the number below and the relevant happenings in the passage.read the passage quickly and find the number below and the relevant happenings in the passage.two theoriesin 1854500 , 1016, 37, 38 and 4020 ,21; 8,9716372089pump3840broad streetcambridge street21john s

15、nows cholera map7pubtwo theoriesin 1854500 , 1016, 37, 38 and 4020 , 21; 8 , 97the first suggested thatmultiplied in the air;. the second suggestedabsorbed this disease into their bodies with their meals.another outbreak hit london.more than 500 people had died in 10 days.these numbers in broad stre

16、et near the water pump had many of the deaths20 and 21 broad street and 8 and 9 cambridge street had no deaths.they didnt drink the water from the broad street pump.these families worked in the pub at 7 cambridge street.read the passage and number these events in the order that they happened.john sn

17、ow began to test two theories.an outbreak of cholera hit london in 1854.he announced that the water carried the disease.john snow marked the deaths on a map . john snow investigated two streets where the outbreak was very severe.king cholera was defeated.he found that most of the deaths were near a

18、water pump.he had the handle removed from the water pump .21473856carefulreading:para-graphstages in an experimentexample in this investigation1find a problem2make a question3think of a method4collect results5analyse results6find supporting evidence7draw a conclusionwhat cause cholera?which theory i

19、s correct?collect data on those who were ill or died and where they got their water.plot information on a map to find out where people died or did not die.analyse the water to see if that is the cause of the illness.find other evidence to support the analysis.the water is to blame. the source of all

20、 drinking water should be examined so that it is safe.the passage mainly tells us that _ .a. the cause of cholera was polluted water b. john snow was a well-known doctor in londonc. the source of all drinking water should be examinedd. john snow did some research and helped to solve “king cholera”wh

21、at was the key help for john snows discovery?a.the government. b.the woman moving away from broad street.c.the water company .d.the map made by himself.read the passage again and fill in the blanks:john snow was a well-known _ in london in the _ century. he wanted to find the _ of cholera in order t

22、o _ it. in 1854 when a cholera _ out, he began to gather information. he _ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the _ died. so he decided that the polluted water carried cholera. he suggested that the _ of all water supply be _

23、 and new methods of _ with polluted water be found. finally, “king cholera” was defeated.doctor19thcausedefeatbrokemarkedpumpsourceexamineddealing (in 5 minutes)key: four diseases, which are similar today, are sars, aids, tb(肺结核肺结核) and bird-flu, because they are both very serious, have an unknown c

24、ause and need public health care to solve them.2. john snow believed idea 2 was right. how did he finally prove it?key: john snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.3. do you think john snow would have solved this problem without the map? give a reaso