人教必修五高中英语unit 1 Great Scientists课件.ppt

ningbo no 2 middle school caoyaping,unit 1 module 5,great scientists,teaching aim:,1.help students understand how science has become so important in our life by examining some key scientific findings and famous scientists. at the end of the unit studnets will understand that there is more to science than chemistry, physics, biology and so on. 2.help students understand that experiment must follow a particular procedure so that other scientists can check the findings by doing the experiment the same way and getting the same results.this is the safeguard for the accuracy of scentific results.,teaching arrangement:,period 1: warming up (p1); listening (p41); project (p47) period 2: pre-reading , reading and comprehending (p1-3) period 3: language points period 4: using language -listening and speaking;reading and writing(p6-8) period 5: language points and grammar period 6: listening and reading (p44-46) period 7: writing (p8 or p47),in the 18th and 19th centuries scientists all over the world made many important discoveries. name some famous scientists. what are they famous for? play a game called “who am i?”,group discussion,the first period,yuan longping- father of hybrid rice,who said ? “i saw rice plants as tall as chinese sorghum,” he said of a dream he once had, “each ear of rice as big as a broom and each grain of rice as huge as a peanut.“,张衡(78 ad - 139 ad), earliest astronomer in china later han dynasty,seismograph and the armillary sphere (浑天仪) so as to observe the universe and predict earthquake,stephen hawking,people used to think that a star going near a “black hole” would be pull into it forever. he has shown that black holes may also push stars out into space.,black holes,marie curie,albert einstein,theory of relativity,thomas edison,the inventions of thomas edison,phonograph 留声机,lightbulb,motion pictures,he invented the way of giving electricity to everybody in large cities,isaac newton, (16421727),universal gravitation,mona lisa,last supper,(1452-1519) italian artist,leonardo da vinci,charles darwin (1808-1882),wrote a book explaining how animals and plants developed as the environment changed,(1663-1729) british, improved the first steam pump and turned it into a steam engine for taking water out of mines in 1712.,thomas newcomen,gregor mendel (1822-1884),use peas to show how physical characteristics are passed from parents to their children,sir humphry davy (1778-1829)british scientist.,miniature miners safety lamp,pair work:,a-a reporter b-one of the ten scientists use the following questions to help you: whats your nationality? (im from) what are you interested in? what conclusion have you drawn? what are you proud of? what leads to your success? (my cautiousness/ creativeness/ determinationleads to),carl linnaeus (1707-1778) swedish,he is often called the father of taxonomy(分类学). he succeeded in classifying the plants and animals into a system they worked.,before-listening,1. which plant and animal do you like best?can you classify them into a system ?,2. ask students how they can find out the name of a flower.,go to the teacher go to a natural museum and speak to a specialist. look it up in a flower book ,while-listening choose which of the following statements most closely describes what this listening passage is about . explain why the others are wrong. a. this is about a man who wants to name a flower. b. this is about a man who finds a flower and wants to own it. c. this is about a man who finds a flower and wants to know if it is a new species of flower.,2. listen to the tape again and try to complete the following passage. to find the name of the unknown flower first you should ask your _ teacher to help you. he /she will look in a special _ written by carl linnaeus. he lived in _ from _to _. he was very important because he solved a _ problem for biology.,biology,1778,1707,sweden,book,serious,3. listen to it once more and answer the following questions:,if robert briggs finds the flower in the book, what does that mean? how would he know if his lily is a new species? why do plants all have two names? what was the serious problem for biology that linnaeus solved?,4. make a phone call according to the following situation imagine you are going to meet a specialist about a newly-found flower. your partner will be the assistant for the flower specialist. you both need a description of the other so you can recognize each other when you meet.now ring the assistant to sort out the necessary information.,pair work (using the following sentences) how will i recog