UNIT1 GREAT SCIENTISTS高中课件下载.ppt

unit1 great scientists,reading,who is he?,he is ,archimedes (阿基米德),which scientist discovered that objects in water are lifted up by a force that helps them float?,charles darwin.,who is he?,he is ,who wrote a book explaining how animals and plants developed as the environment changed?,thomas newcomen.,who is he?,he is ,who invented the first steam engine?,gregor mendel,who is he?,he is ,who used peas to show how physical characteristics are passed from parents to their children?,marie curie,who is he?,he is ,who discovered radium?,thomas edison,who is he?,he is ,who invented the way of giving electricity to everybody in large cities?,leonardo da vinci,who is he?,he is ,who was the painter that studied dead bodies to improve his painting of people?,humphry davy,who is he?,he is ,who invented a lamp to keep miners safe underground?,who is he?,who invented the earliest instrument to tell people where earthquakes happened?,stephen hawking,who is he?,he is ,who put forward a theory about black holes?,read the text and find the topic sentences of each para?,para1: he knew that cholera would never be controlled until its cause was found.,para2: he became interested in two theories that possibly explained how cholera killed people.,para3: john snow suspected that the second theory was correct but he needed evidence.,para4: first he marked on a map the exact places where all the dead people had lived.,para5: next, john snow looked into the source of the water for these two streets.,para6: in another part of london, he found supporting evidence from two other deaths that were linked to the broad street outbreak.,cause,two theories,second theory,marked on a map,looked into,supporting,evidence,please put the 7 stages in right order according to the passage.,draw a conclusion,think of a method,collect results,make a question,find a problem,analyse the results,find supporting evidence,find a problem,neither its cause nor its cure was understood.,make a question,what caused cholera?(which theory is right?),think of a method,the method is to gather information.,collect results,what were the results?,many of the deaths were near the water pump in broad street. some houses in which people working in the pub had been given free beer had had no deaths.,how did he gather information? first he marked on a map the exact places where all the dead people had lived.,analyse the results,find supporting evidence,how did he analyse the results? he looked into the source of the water for these two streets.,what was the supporting evidence? a woman had the water delivered to her house everyday and both she and her daughter died of cholera.,draw a conclusion,polluted water carried the virus.,what did he suggest to prevent this from happening again?,attend expose to cure absorb suspect foresee blame pollute link to announce instruct,physician challenge victim enquiry neighborhood pump handle,expert severe,expert,动词,attend expose to cure absorb suspect foresee blame pollute link to announce instruct,pollution, polluting,instruction, instructive,announcement,absorbing, absorbed,attend mary invited about 30 people to her party, but only 12 attended it. the nurse attended the patients with great care. if you go out ,who will attend to the baby? could you attend the matter immediately? the queen was attended by her ladies-in-waiting.,vt.参加,vt.照顾,vt.处理，解决,vt. 陪伴,blame its no use blaming children for making mistakes in speaking english. it is you who are to blame for the accident. you must take the blame for the mistakes in the report.,blame sb. for sth.,be to blame,承担责任,black walls absorb a lot of heat during the day. i was so absorbed in the book that i didnt hear you come in. the teacher suspected that he was lying. she suspected him of taking her money.,be absorbed in sth./ding sth.,suspect sb. of doing sth.,absorb,suspect,1. the wolf opened its mouth to _ a row of sharp teeth.,2. dont _ your skin to the sun; your skin will be hurt.,expose,expose,expose,expose to keep indoors and dont expose your skin to the sun. we must be awaken to the difficulties that are exposed to us.,link to our company will link pay increases to performance. pay increases will now be linked to performance.,2. the two towns are linked by a railway. v. 连接,1. a lot of links fitted together form a chain. n. (链状物的)环,节,3. the new bridge will link the island to the mainland.,link,practice: 1.那次事故怪不着孩子们。 2.daniel病了，他需要人照顾。 3.不要让士兵冒不必要的危险。 dont expose solders to unnecessary risks.,the children were not to blame for the accident.,daniel is ill now and he needs someone to attend to him.,4.他在会上提出了一个很有价值的建议。 he put forward a valuable suggestion at the meeting. 5.这个护士很精心地照顾这位病人。 the nurse attended the patient with great care. 6.玛丽邀请了大约30人参加她的宴会，但只有 12人参加。 mary invited about 30 people to her party, but only 12 attended it.,名词,physician challenge victim enquiry neighborhood pump handle,physician neighborhood,physicist, physics,neighbour,challenge the crossing of this dangerous river was a challenge to most of us. nowadays no one will challenge the fact that the earth is round.,pump can you lend me your bicycle pump. the heart pumps blood into the veins.,handle pick up the typewriter case by the handle. he knows how to handle the machine.,victim think of yourself as a survivor, not a victim. the lion attacked its victim with great ferocity.,enquiry i am sorry, i am not able to help you with your enquiry.,形容词,expert severe,expert he is an well-known expert in finance. he is expert in cooking good cheap meals.,part1 i. 1.analysed 2.defeated 3.neighbourhood 4.expert 5.victims 6.enquiries 7.suspected 8.announced,ii. 1.conclusion 2.scientific 3. painter 4. characteristic 5.deadly,iii 1.exposed to 2.put forward 3.are linked to 4.look into,v. 1.they once challenged and beat the best team in the world. 2.there is much information to show that the air we breathe is polluted. 3.mother put up (prepared) a big p