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2015-2016学年北师大版 选修七 unit 21 Human BiologyLesson 3 Epidemics Explained课件 (36).ppt

1、Language Points,Language points课时是对Reading课时的补充。帮助学生巩固课文重点词汇、短语和句型的用法,进一步扎实基础知识。教师可根据学生预习情况选择性讲解。(词汇的释义和用法,建议引导学生自行查找字典等相关资料来学习,以培养其自主学习能力。)词汇讲解,建议采用归纳法,先尽可能多的呈现一些相关例句,或让学生从已学课文中查找相应例句,引导学生试着从所观察到的语言现象中总结出词汇的意思和用法。,Prohibit 禁止,阻止,其用法有: 1)后接名词或代词作宾语 2)后接动名词作宾语,动名词形式也 可用其复合结构,即sb/sbs doingProhibit sb

2、from sth/doing sth阻碍 某人做某事,The police prohibit pariking in the center of the city. 警方禁止在市中心停车。 The law prohibits tobacconists from selling cigarettes to children. 法律禁止烟贩向儿童出售香烟。 Smoking is strictly prohibited in the process of handling explosive materials. 在处理易爆物时,严格禁止吸烟。,Practice,翻译句子,1)有关规定禁止司机在开车

3、前饮酒。,2)在加油站吸烟是严厉禁止的。,3)他的经济情况不允许他上大学。,Family fiances prohibited his going to college.,Smoking is strictly prohibited in the gas station.,The regulations prohibited the drivers from drinking wine before driving.,2. unite 联合 We should unite to fight poverty and disease. 我们应该联合起来为消除贫穷和疾病而斗争。 The more o

4、f the masses we unite with, the better. 我们联合起来的群众越多,就越有利。,unite 还可表示统一、团结 After three years in prison he was again united with his wife and family. 他在狱中关了三年之后,又与妻子和家人团圆了。 The threat of was has united the country behind its leaders. 国难当头全国人民都团结在领袖的周围。,拓展,united adj.和睦的,团结的,联合的,Practice,我们必须紧密地团结在一起。

5、We must unite closely.,3. faith n.信心,信任 He has faith in my ability. 他对我的能力有信心。 I havent much faith in this medicine. 我对这种药没有多大信心。,【拓展】 break faith with sb 对某人不守信用 have faith in 相信,信任 have no faith in 不相信 keep faith with 忠于信仰 lose faith in 失去对的信念 put faith in 相信,信任 shake ones faith 动摇信心,Practice,我相信你

6、,我肯定你会做好的。,2. 为什么你对他不守信用?,3. 我再也不相信那个家伙了。,I have faith in you, I am sure you will do well.,Why did you break faith with him?,Ive lost faith in that fellow.,4. foresee,预知,预见,任何人都无法预知将如何实现对人口的必要限制。,No one foresees how the necessary restriction of the population will be effected.,我预见到那个有才能的年轻女子前程灿烂.,I

7、foresee a bright future for that talented young woman,他预见了该地区将有严重饥荒。,He foresaw a severe famine in the land.,Practice,5. mourn,She mourned the loss of her brother.,她因为失去了哥哥而悲痛。,每到清明, 他都会来悼念亡妻。,He comes to mourn his dead wife every Tomb - Sweeping Day.,Practice,6. stop in ones track,使停住了脚步,Several ti

8、mes I was stopped in my tracks by the sight of something I could not identify. 有好几次我因无法辨认的景象而止步。,句子分析,1. Scientists now guess that up to 50% of the areas population died from the epidemic making it one of the main causes of the fall of the Roman Empire.,结构分析,主语是scientists, 谓语是guess, that 引导一个宾语从句,在从

9、句中,主语是population, 谓语是died, 宾语是the epidemic, making是现在分词短语作状语。,2. Many people fear it could be the next global epidemic, especially as scientists who studied tissue from the bodies of people who died of the 1918 Spanish Flu proved that Bird Flu is a modern adaptation of the same virus.,结构分析,此句是复合句。主主

10、句的主语是many people, 谓语是fear, 后面带了一个宾语从句:it could be the next global epidemic。后面as 引导的是一个原因状语从句,从句,的主干为:as scientists proved that , 其中scientist 后有一个由who引导的定语从句,而这个定语从句中又含有一个定语从句来修饰先行词people.,Let the word fly,Tips for teacher,Let the word fly 板块是帮助学生 学习一些一词多义、熟词生意的词 汇。通过此环节,学生可以对一些 常见词的用法、意思有一个透彻的 了解。,w

11、ipe away,擦掉,清除,wipe sth out,擦净,wipe sb out,彻底摧毁,消灭,wipe 相关短语,1. 他擦去了汽车挡风玻璃上的油渍。 2. 他好几个月没有擦洗油箱了。 3. 一颗原子弹能杀死成千上万的人。 4. 几个世纪前,这片荒芜的地方曾是一座繁荣的小镇,可据说一场龙卷风扫平了它。,1. He wiped away the grease from the wind screen of the car.,2. It is months since he wiped out the fuel tank,3. One atom bomb can wipe out thou

12、sands of people.,Translation,4. Centuries ago, this deserted place was a flourishing town, but a tornado is said to have wiped it out.,Game Time,Now in groups,make up as many sentences as possible with the phrases above. Then present it before class. Lets see which group is the most productive.,注:另附

13、word文档,点此链接,1. The room has been given a _ (彻底的) cleaning, inside and outside. 2. In some developing countries more and more people are moving to _ (城市的) areas. 3. The patient needs some _ (常规的) examinations before the real operation.,Fill in the blanks.,through,urban,routine,4. In football _(合作) is

14、 actually even more important than individual skill. 5. The government should make a law to _ (阻止) advertisements for tobacoo on TV. 6. Obviously they have leaked out the information to the _(报界).,press,prohibit,teamwork,Translate and write them down.,1. 尽管约翰有缺点,但我对他还是信任的。,In spite of his shorcoming

15、s, I still have faith in John.,2. 我们提出的问题让爱丽丝张口结舌,无言以对。,The questions raised by us stopped Alice in her tracks.,3. 雨天和大雾妨碍了飞行。,Rainy weather and fog prohibited flying.,4. 我们要团结尽可能多的人。,We must unite as many people as possible.,5. 这是十足的浪费时间。,That has been a thorough waste of time.,6. 共同的利益使两国团结一致。,The common interests unite the two countries.,Review,Keep the words in mind: foresee mourn stop in ones track,Thank you!,

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