外研社第四册第四单元Greatscientists.ppt

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1、Name: _Nationality: _Major: _Inventions /discovers: _When did they invent/discover:_ Chinese atom bombIn 1964Name: _Nationality: _Major: _Inventions /discovers: _When did they invent/discover:_Marie CuriePolishPhysicsRadioactivityIn 1898Name: _Nationality: _Major: _Inventions /discovers: _When did t

2、hey invent/discover:_ArchimedesSicilianPhysics, Mathematicianbuoyancy浮力浮力About 240 BCName: _Nationality: _Major: _Inventions /discovers: _When did they invent/discover:_Albert EinsteinGerman / AmericanMathematical Physicsrelativity In 1905Name: _Nationality: _Major: _Inventions /discovers: _When did

3、 they invent/discover:_Yuan LongpingChineseAgriculturehybrid riceIn 1970zoologybotanybiologyphysicsbiochemistrychemistrygeneticsReading & Vocabulary -2. Read the He was a student with lots of questions and he was interested in plants. By crossing different species of rice plant, then he could produc

4、e a new plant which could give a higher yield than either of the original plants.He discovered a naturally sterile male rice plant.Chinese rice production rose by 47.5% in the 1990s. There were other advantages. 50,000 square kilometres of rice fields were converted to growing vegetables and other c

5、ash crops. Yuans rice was exported to other countries. His rices yield is much greater than the yield of other types of rice grown in Pakistan.Reading & Vocabulary - 3. Careful reading (5ms) Read the 1. China produces more rice than any other country.2. Yuan Longping asked a lot of questions at scho

6、ol.3. He developed a new kind of fast-growing rice.4. The government helped him in his research.5. The new rice replaced vegetables in 50 thousand square kilometers.6. The new rice is now grown n other countries, such as Pakistan.Para 1Para 2Para 3Para 4Para 5Para 6Activity 3: 1) crop2) breakthrough

7、3) breed4) support5) feed6) publish7) producer8) species9) agriculture Activity 4:1) B2) B3) A4) B5) B Suppose one of you is an experienced farmer whohas been growing rice; One is professor Yuan and the other one is a reporter. Please talk about the influence of the new hybrid rice. Tips:There s a q

8、uiz show being on.quiz: a competition or game in which people try to answer questions to test their knowledgeawardequalmeasurediscovertheoryradiationcontestantround reaction 7. a person who takes part in a contest 8. a stage in a competitionSuperquiz.The second round.Great Scientists.Matthew and Rac

9、hel.12.36:36.39:41.Answers: born published given famous for hole discovered, holes holes measuredListening & Speaking -5.Extra- moment, Matthew and Rachel are _, with 36 points each. First question: What is Einstein known for?(buzzer)M: _.gets a pointgoes to the second contestant losesequalThe theor

10、y of relativity_?was publishedWho was it written byWhat award was he givenA Brief History of Timeblack holeHow are black holes measuredwere discovered bylight waves Hawking _another reason. Does anyone know? Who was this radiation discovered byWell doneis famous for Matthew has thirty-nine points an

11、d Rachel has forty-one points! Culture corner -2. Skimming 1)Today rockets are only used to send astronauts into space.2)Rockets were invented by Chinese about 2,000 years ago.3)It was in the Song Dynasty that rockets were first used in wars.4)It is believed that Europeans learned how to make rocket

12、s from the Mongols.5)Wan Hu succeeded in sending himself into space with the help of rockets.Culture corner -3. Structure (5ms) Today rockets are used to send astronauts into space or celebrate great events. Rockets were first invented by Chinese about 2,000 years ago. First rockets were used in bat

13、tles in China and then it was spread to Europe. Rockets were also used in other ways. Find out more information about rocket on Internet. Then share it with your classmates Tomorrow Grammar - 1. Observation (5ms) of China.present simple1past simplerefers to the future present prefectGrammar3 . Exerc

14、ises1. was educated2. was given3. were published4. was discovered5. were converted6. was exported不知道动作的执行者不知道动作的执行者不必提出动作的执行者不必提出动作的执行者强调动作的承受者强调动作的承受者习惯用法习惯用法不确定动作的执行者不确定动作的执行者行文的需要行文的需要Grammar-5.am / is / are + 过去分词过去分词 (p.p.)was / were + p.p.shall / will + be + p.p.am / is / are + being + p.p.was

15、 / were + being + p.p.has / have + been + p.p.had been + p.p.should / would + + p.p.p Mother bought me a new coat.p I was bought a new coat.p A new coat was bought for me.give, show, hand, send, pay, lend, pass, tell, write, bring, sell, offer, cause, wish, teach, buy等常有双宾等常有双宾语语,变被动态时应考虑加上介词变被动态时应考

16、虑加上介词for或或toCan 系动词系动词 + adj.:主动表被动主动表被动某些和某些和well, easily等副词连用的不及物动词等副词连用的不及物动词, 如如read, wash, clean, cook, close, cost, lock, look, open, sell, write, wear, etc.1. The window is dirty. I know. It _ for weeks.A. hasnt cleanedB. didnt cleanC. wasnt cleanedD. hasnt been cleaned2. Now that she is our

17、of a job, Lucy _ going back to school, but she hasnt decided yet.A. had consideredB. has been consideringC. consideredD. is going to consider3. The mayor of Beijing says that all construction work for the Beijing Olympics _ by 2006.A. has been completed B. has completedC. will have been completed D.

18、 will have completed4. According to the art dealer, the painting _ to go for at least a million dollars.A. is expectedB. expectsC. expectedD. is expecting5. - What happened to the priceless works of art?- _.A. They were destroyed in the earthquakeB. The earthquake was destroying themC. They destroye

19、d in the earthquakeD. The earthquake destroyed them6. - The window is dirty.- I know. It _ for weeks.A. hasnt cleanedB. didnt cleanC. wasnt cleanedD. hasnt been cleaned7. When and where to go for the no-salary holiday _ yet.A. are not decidedB. have not been decidedC. is not being decidedD. has not

20、been decided8. A new cinema _ here. They hope to finish it next month.A. will be built B. is built C. has been built D. is being built9. The new suspension bridge _ by the end of last month. A. has been designed B. had been designed C. was designed D. would be designed10. Hundreds of jobs _ if the f

21、actory closes.A. lose B. will be lost C. are lost D. will lose 11. Rainforests _ and burned at such a speed that they will disappear from the earth in the near future.A. cut B. are cut C. are being cut D. had been cut 12. The first use of atomic weapons was in 1945, and their power _ increased enorm

22、ously ever since.A. is B. was C. has been D. had been1. Finish the related exercises on WB. Stephen HawkingWhen & where was he born?Why was he famous?When did he discover /invent?Match the words in the box with the definitions.victimdiagnosebest-sellerdiseasecosmologycreationdisabilityRead the passa

23、ge about Stephen Hawking and number the paragraphs in the correct order.Answers:Answers:2-3-12-3-1Write the number of the paragraphs.Paragraph 1( the third in the book)Paragraph 2( the first in the book)Paragraph 3( the second in the book)Discuss with your group members .Write three short paragraph

24、about Albert Einstein using the notes in Activity 4. Begin like this: Albert Einstein was probably the most brilliantscientists of the twentieth century.Reading &Writing 7. Peer checking and rewriting (10ms)Are you clear what happen(4Wand H)Do you know the writers attitude and emotion?Are there any

25、good connecting words or phrases?Are there any good phrases or sentences?Are there any spelling mistakes?Language points for Reading 1. He thought that the key to feeding people was to have more rice and to produce it more quickly.2. He thought there was only one way to do this - by crossing differe

26、nt species of rice plant, .Thats not a right way to solve the problem.Im not happy with this way of working.by crossing 通过杂交的方式通过杂交的方式Switch it by pressing this button.I will contact you by e-mail.species (singl. / pl.) 种种,物种物种There are many species of dogs.experiment: (n.) c / u实验；试验实验；试验3. First Y

27、uan Longping experimented with different types of rice.do / perform / carry out an experiment 做做/进行实验进行实验4. This was the breakthrough.breakthrough: an important development that may lead to an agreement or achievement 重大进展重大进展,突破突破 make a breakthrough a major breakthrough有人说，这是癌症研究中的重要突破。有人说，这是癌症研究中

28、的重要突破。They say this is a major breakthrough in cancer research.5. 50 kilometres of rice fields were converted to growing vegetables and other cash crops.6. Following this, Yuan Longpings rice was exported to other countries, such as .印度向许多国家出口茶叶和棉花。印度向许多国家出口茶叶和棉花。India exports tea and cotton to many

29、 different countries.90%的发动机都出口到欧洲。的发动机都出口到欧洲。90% of engines are exported to Europe.export (n.) import (v. / n.)export tradeimports of oil出口贸易出口贸易石油的进口石油的进口1. 在水稻种植界，中国科学家袁隆平是一位重要人士。In rice-growing world, the Chinese scientist, Yuan Long-ping, is a _ _.2. 袁隆平生长在中国。Yuan Longping was born and _ _ in C

30、hina.3. 袁隆平从小就对植物感兴趣。From an early age Yuan Longping _ _ _ plants.4. 他想，养活世人的关键是更多更快地生产水稻。He thought that _ _ _ feeding breeding.5. 他认为，唯一的办法是使不同种类的水稻杂交。He thought there was _ _ _ _ do this _ crossing different species of rice plant.6. 全国各地的研究者们被召集在一起开发新的水稻种。Researchers _ _ _ from all over China to _ the new system.7. 由于袁隆平的发现，中国的水稻产量在20世纪90年代增长了47.5%。_ _ _ _ Yuan Longpings discoveries Chinese rice production _ _ 47.5 percent in the 1990s.