Unit1 Reading and thinking 2 Build up your vocabulary（ppt课件）-2023新人教版（2019）《高中英语》选择性必修第二册.pptx

1、授课时间：11月8日授课教师：蒋阳教学目标：在本课学习结束时，学生能够：1.推断 John Snow 作为科学家的优秀品质并举例论证；2.掌握并巩固“科学与科学家”相关的词汇及其意义；3.掌握一些词汇学习、记忆的策略，通过将词汇分类来建立围绕主题意义的词汇语义网。教学重点：1.推断 John Snow 作为科学家的优秀品质并从文本中找到相应的信息作为支撑；2.掌握一些词汇学习策略，加强基于主题意义的词汇理解并促进词汇运用。教学难点：1.根据文章所提供的细节信息对人物品质作出合理的推断。2.基于单元主题，根据词义建立词汇网络。Unit 1 SCIENCE AND SCIENTISTS Lesso

2、n 2 Reading and Thinking(2)&Build up your vocabularyFill in the blanks according to the text.In the early 19th century,an outbreak of cholera hit Europe,_(cause)millions of deaths.Seeing this,John Snow became frustrated because no one knew how _(prevent)or treat cholera.At that time,doctors had two

3、theories to explain how cholera spread.One was that bad air caused the disease and another was that cholera was caused by germs in food or water.John discovered that in two particular street _ cholera outbreak was _ severe that over 500 people died in ten days.Through his serious _(investigate),he f

4、ound it was the pump water in Broad Street _ resulted in the disease.Therefore,he had the handle of the pump _(remove).causingto preventthesoinvestigationthatremovedIt turned out that the water from the pump _(infect)by waste.Through Snows tireless efforts,water companies began to sell clean water,a

5、nd the threat of cholera around the world saw _ substantial decrease.Snow transformed the way _ scientists study diseases.For this reason,he is considered the father of modern epidemiology.Fill in the blanks according to the text.had been infectedthat/in whichaFurther thinkingWhat scientific spirits

6、 contributed to Snows success?He never lost his desire to destroy the cholera.determinedambitiouspassionatestrict strong-willedserioustirelesshard-workinggifted/talenteddiligentintelligent/smartinnovative/creativea questioning mindRead the sentences and tell the meaning of the underlined phrases.1.M

7、any scientists subscribe to a few science magazines to keep up to date with the latest research news.2.John Snow subscribed firmly to the belief that cholera was caused by an infection from germs in food or water.3.If a person is suspected of an infection,his/her family members should be put in quar

8、antine.4.There was no evidence to suggest that the disease was linked to bad air.5.The hot weather is partly to blame for the water shortage.to pay to get a product regularly 定期订阅、订购to agree with 同意be connected toto be responsible for 归咎于to believe that something,usually bad,may be true 怀疑，认为（某事有可能）

9、n.隔离；检疫1.Many scientists _the view that it is human activity that has caused global warming.2.He was to _ the accident because he drove on the wrong side of the road.3.The man _ being behind the robbery was seen crossing the street.4.Since heart disease is often _ our lifestyle choices,we need to ma

10、ke healthy living an important part of our lives.subscribe suspect blame linksubscribe to blame for suspected of linked to TB P.4 Ex.2 Make phrases by combining the words in the left box with those on the right.Then complete the sentences using these phrases.to of for1.It is not unusual for an athle

11、te to be well known while he is active,and quickly forgotten when his athletic career is over.2.Im sure shell deal with the changes very well because shes very adaptable.3.He was ready to serve dinner to his friends when he realized that he had forgotten to turn on the oven and the meat was not cook

12、ed yet.4.He used his great influence to change the thinking of the scientific community on this issue.5.Scientists have collected more data than expected to prove the theory.raw statistics substantial handlea household name TB P.4 Ex.3 Replace the underlined parts with suitable words from the box.Th

13、ink about where we can use them.raw a household name substantial statistics handlefamesolutioncharacteristic（特征）（特征）importance,size,amountscientific methodReview6._(As a result),they miss lots of valuable information.7.When he cries,someone will _(take care of)him immediately.8.The cost of materials

14、 rose sharply last year._(Therefore),we were forced to increase our prices.9.Police suspect there may be a _(connection)between the two murders.10.We are faced with two apparently _(different)theories.11.This is a special school for children with _(serious)learning difficulties.12.According to the r

15、esearch,the number of insects in the world is _(becoming fewer)by 2.5 percent every year.Use similar words or phrases from the text.Consequentlyattend toAccordinglylinkcontradictorysevere decreasinginfection multiple decrease severe transform proof blame substantial TB P.4 Ex.4 Read this passage abo

16、ut medical science.Complete it using the words below.British scientists believe they may have found a way to fight the common cold.It blocks a key protein in the body cells that is to _ for the spread of cold-causing virus.Targeting the host rather than _ was a bit non-traditional but made sense bec

17、ause it was tricky to target the virus.Cold-causing virus are not only of _ kinds,they also _ rapidly,meaning they can quickly develop resistance to medicine.Researchers are working on making a form of medicine that can be taken directly into ones lungs,to _ the chance of side effects.Though these s

18、cientists have made _ advances in their research,further _ is needed to make sure such drugs are not so _ that they harm the body.blame infectionmultipletransform decrease substantialproof severe n.蛋白质n.细胞n.肺有意义副作用The longest English word/njum()nltrmakr()skpkslkvlkenknss/of lung 肺的肺的to an extreme de

19、gree 非常非常smallof viewing or observing 观观察或注意的察或注意的of silicon 硅的硅的mountain that releases lava and ash 火山的火山的of dustpneumonoultramicroscopicsilicovolcanoconiosisa state of diseasea lung disease caused by inhaling very fine ash and sand dust 尘肺病尘肺病 prefix 前缀前缀suffix 后缀后缀PrefixWordsPrefixWordsre-micro-d

20、is-trans-remove,recycle,revive（使）复苏（使）复苏discover,discount,disappearmicroscope,microwave,microbe 微生物微生物transform,translate,transplant移栽，移植移栽，移植前缀前缀释义释义单词单词 re-reviewreturn dis-disagree micro-microscope trans-transporttransnational跨国的；超越国界的跨国的；超越国界的again 再、重新、重复再、重新、重复back 回，向后回，向后opposite of;not不、无、相

21、反不、无、相反small (一般用于科技术语一般用于科技术语)微，小微，小change 转变；转移转变；转移across,over,beyond,穿、越、超穿、越、超SuffixWordsSuffixWords-ory-ial-ion-ology contradictory,sensory,theoryinfection,intervention,conclusionsubstantial,official,commercialepidemiology,physiology,psychology后缀后缀释义释义单词单词 -orysensory(感觉的；感官感觉的；感官的的)factory -i

22、oneducation -ialbeneficial -ologysociology社会学社会学形容词和名词后缀形容词和名词后缀:作为形容词主要表示作为形容词主要表示“有有.行行为特点的为特点的”，做为名词表示相关，做为名词表示相关的场所的场所名词后缀名词后缀：表性质、状态、程度：表性质、状态、程度形容词后缀形容词后缀：属于：属于的的,有有性质的，具有性质的，具有的的science,study科学；学问科学；学问Use the proper prefix or suffix with the words given in brackets to complete the sentences b

23、elow.1.To keep the Earth clean,we should _(cycle)plastics.2.She managed to _(form)peoples negative attitudes towards her job into positive ones with her determination and _(devote).3.Scientists around the globe are working to _(cover)a cure for serious heart disease.4.John Snow is very _(influence)in defeating cholera because with his tireless efforts,Europe saw a _ (substance)decrease in the number of deaths.recycletransformdevotiondiscoverinfluentialsubstantialThank you for listening!