1、必修5Unit 1Great scientists我们在此处增加本课时重点单词和短语表达部分,旨在帮助学生在上课前对早读学习的单词及短语进行复习回顾，从而加深记忆。用一分钟时间对单词进行复习，使学生在新课学习中没有单词障碍。通过朗读，使学生熟练掌握单词的正确发音。所呈现单词均出自课本单词表中的词汇。characteristicradium painter scientificconclude conclusionanalysen.特征;特性n.镭n.画家;油漆匠adj.科学的vt.&vi.结束;推断出n.结论;结束vt.分析Words reviewput forward draw a conc
2、lusion提出得出结论Expressions reviewObjectiveFind out what you already know about famous scientists.There are some great scientific achievements that have changed the world.Can you name some of them?Match the achievements with the scientists below.Galileo GalileiBenjamin FranklinNewtonAlexander Bell Alber
3、t Einsteinthe theory of falling objectslightningthe law of gravitytelephone Scientists Achievementsthe theory of relativityWhat do you know about great scientists?Try this quiz and find out who knows the most.1.Which scientist discovered that objects in water are lifted up by a force that helps them
4、 float?B.Archimedes C.Thomas EdisonA.Charles DarwinArchimedes(287-212 BC),an ancient Greek mathematician&physicist2.Who wrote a book explaining how animals and plants developed as the environment changed?A.Marie B.CurieC.Charles DarwinB.Gregor MendelCharles Darwin(1808-1882),British author of The Or
5、igin of Species 3.Who invented the first steam engine?A.ThomasB.NewcomenC.Thomas EdisonB.ArchimedesThomas Newcomen(1663-1729),British,improved the first steam pump and turnedit into a steam engine for taking water out of mines in 17124.Who used peas to show how physical characteristics are passed fr
6、om parents to their children?A.Thomas B.EdisonC.ArchimedesB.Gregor MendelGregor Mendel(1822-1884),Czech,developed ideas on heredity(遗传学)and inherited(继承,承传)characteristics5.Who discovered radium?C.Marie CurieB.NewtonA.Zhang HengMarie Curie(1867-1934),Polish and French,won two Nobel prizes6.Who inven
7、ted the way of giving electricity to everybody in large cities?A.Stephen B.Hawking C.Thomas EdisonB.ArchimedesThomas Edison(1847-1931),American inventorThomas EdisonInventions of Thomas Edison Phonograph 留声机Light bulbmotion picture camera7.Who was the painter that studied dead bodies to improve his
8、painting of people?A.GregorB.MendelC.Marie CurieB.Leonardo da Vinci Leonardo da Vinci(1452-1519),Italian artistLeonardo da Vincis paintings8.Who invented a lamp to keep miners safe underground?A.Sir HumphryB.Davy C.FaradayB.Thomas NewcomenSir Humphry Davy(1778-1829),British,discovered the medicinal
9、value of nitrous oxide(一氧化二氮)as an anaesthetic(麻醉剂)9.Who invented the earliest instrument to tell people where earthquakes happened?A.Charles B.DarwinC.Watt B.Zhang HengZhang Heng(78-139),Chinese,invented the first seismographseismograph地动仪10.Who put forward a theory about black holes?A.Stephen B.Ha
10、wkingC.CopernicusB.ArchimedesStephen Hawking(1942-),British scientist,worked in astronomy and studied black holes in spaceThe quotes below are from some famous scientists.Do you know their meanings?Imagination is more important thanknowledge.“想象力比知识更重要。”Albert EinsteinGenius is one percent inspirati
11、on and ninety-nine percent perspiration.“天才就是百分之九十九的汗水加上百分之一的灵感。”Thomas Alva EdisonMarie CurieNothing in life is to be feared,it is only to be understood.“生活中没有什么可怕的东西，只有需要理解的东西。”It takes a very unusual mind to undertake analysis of the obvious.Alfred Whitehead“分析明显存在的事物需要非凡的头脑。”What makes ascientis
12、t successful?strong willimaginationcreativitypatiencepersistencecarefulnesscuriosityDo you know how to prove a new idea in scientific research?Discuss in small groups the stages in setting out a new scientific idea.What order would you put them in？Draw a conclusion Think of a methodCollect results M
13、ake a questionFind a problem Analyse the resultsFind supporting evidence Infectious diseases can be spread to other people.They have an unknown cause and need public health care to solve them.People may be exposed to infectious diseases,so may animals.Bird flu,AIDS and SARS are infectious diseases.I
14、nfectious diseases are difficult to cure.What do you know about infectious diseases?What do you know about cholera?Cholera is the illness caused by a bacterium(细菌)called Vibriocholerae.It infects peoples intestines(肠),causing diarrhea(腹泻),vomiting and leg cramps.The most common cause of cholera is b
15、y someone eating food or drinking water that has been infected with the bacteria.Great BritainGermanyDeath of first cholera case in London during the 1848-49 epidemic LondonPrevious cholera epidemic in Great Britain in 1831-32The spread of choleraHomework1.Write a passage about one 2.of your favouritescientists 3.in about 100 words.2.Preview the Reading:JOHN SNOW DEFEATS “KING CHOLERA”
