《大学英语》全新版第三册Unit详解

1、Unit 3 Security,The Land of the Lock,Language learning strategy,Text A,Assignment,Lead-in Activities Teaching Objectives Warm-up questions,Teaching Objectives,Students will be able to: Understand the main ideas of the two readings Appreciate the various techniques employed by the writer Grasp the ke

2、y vocabulary items Understand and master the usage of important structural items.,Warm-up Questions,Security,Security: the state of being free from danger or injury .,How are you free from danger or injury ?,Home Security : the doors, locks, alarm systems, lighting that is installed on your property

3、. Personal Security : ensuring doors locked, alarms activated, windows closed and many other routine tasks which act to prevent a burglary. Public Security : the government managing and organizing .,THE LAND OF THE LOCK Bob Greene,Text A,LOCK,The lock on something such as a door or a drawer is the d

4、evice which is used to keep it shut and prevent other people from opening it. Locks are opened with a key. A lock is a mechanical or electronic fastening device that is released by a physical object (such as a key, keycard, fingerprint, RFID（无线射频识别 card, security token(安全令牌） etc.), by supplying secr

5、et information (such as a keycode or password), or by a combination of these.,“LOCKS”,Why do you use lock ?,The lock on something such as a door or a drawer is the device which is used to keep it shut and prevent other people from opening it.,“ON THE LATCH” There is a similar old saying in China,路不拾

6、遗，夜不闭户 No one picked up and pocketed anything lost on the road, while no family had the need to bolt the doors at night.,Please scan the whole text in 7 mins and recall the key words related to the context,“lock” is one of the keywords in this text, bylocating “lock” throughout the text, we get a pr

7、etty good idea of what this essay is about. What types of security methods has mentioned in the text? Could you find them out?,Security Systems,Security,security chains,electronic alarm systems,trip wires,sliding glass doors with steel bars,access cards,electronic X-ray equipment,high-intensity ligh

8、t,rape whistles,dead-bolt locks,Text Organization,In America, the era of leaving the front door on the latch has drawn to a close.,A new atmosphere of fear and distrust creeps into every aspect of daily life. As a result, security devices, in varied forms, are put to use.,By locking our fears out, w

9、e become prisoners of our own making.,Part 1 True or False,1. The phrase “on the latch” means the door is closed and locked. ( ) 2. Nowadays, doors, not only in cities but also in rural areas, are locked. ( ) 3. Urban streets are more dangerous than outskirts and country areas.( ) 4. In America nowa

10、days, no one leaves his front door on the latch anymore. ( ) Keys: F, T, F, T,Part 2 Supporting Facts for the Central Idea,In this text the author uses lots of facts to support his central point of view: America is deteriorating from “the Land of the Free” into “the most insecure nation”. Could you

11、find any more supporting facts?,Doors are not left unlocked either in cities or in rural areas. (para2) Dead-bolt locks, security chains, electronic alarm systems and trip wires are widely in use. (para4) Suburban families have steel bars built in sliding glass doors. (para4) Small notices warning a

12、gainst burglary are commonly seen pasted on the windows of the most pleasant of home. (para5),Access cards are required of those who work with medium to large-size companies. (para10) Airport security uses electronic X-ray equipment to guard against terrorism. (para12-13) Businessmen employ new mach

13、ines linked up to their telephone to help determine whether the caller is telling lies or not. (para15) Suburban housewives wear rape whistles on their key chains. (para18),We have become so used to _ _, and so used to _.,Sentence Completion,Read Part 2 carefully and supply the missing information.,

14、defending ourselves against the new atmosphere of American life,putting up barriers,2. We are satisfied_ .,Sentence Completion,when we think we are well-protected,3. With electronic X-ray equipment, we seem finally to _ .,have figured out a way to hold the terrorists at bay,4. We do not want to affo

15、rd ourselves _ as a shadow.,even so much a luxury,Under what excuse do people resort all these means mentioned in Part 2? Does the author think they are justified in doing so?,Part 3 Questions and Answers,In the name of “Security”.,No. Because in the authors opinion, America becomes the most insecur

16、e nation with all these means.,3. According to the author, what may be the legacy we remember best when we recall this era?,We became prisoners of ourselves when we deal with the unseen horrors among us.,Questions and Answers,Text Analysis,para1 vs. para4 Para 1: on the latch; closed but not locked;

17、 none of us carried keys; close up Para 4: dead-bolt locks; security chains; electronic alarm systems; trip wires hooked up to a police station or private guard firm; sliding glass doors; steel bars. Function: The first pair of contrast acts as the opening of the whole piece of writing.,Comparison a

18、nd contrast,para10 vs. para11 Para10: carry some kind of access card, such as electronic ones; security guard Para11: policy free access Function: It is the supporting details for the central argument. para12 vs. para13 Para12: it( the airport) is a place of education and fun; parents used to take c

19、hildren out to departure gates（登机口） to watch plane land and take off. Para 13: electronic X- ray equipment to hold the terrorists Function: The latter two are just two supporting details for the central argument.,simple past in para1 VS. present perfect in para4; a phrase that indicated an old habit

20、 VS. a phrase indicating the current state (i.e. “used to” vs. “no longer” in Para. 11); summary sentence (“It wasnt always like that” in para12).,Text Analysis,Tense change:,Expressions on “安全”,联合国安全理事会负有维持国际和平与安全的责任。 The United Nations Security Council is charged with the maintenance of internatio

21、nal peace and security. 这架飞机在大雾中安全着陆。 The plane made a safe landing in heavy fog. 注意安全！ Watch out！ Attention! Caution! Be careful Take care！ They lulled her into a false sense of security. 他们哄骗她, 使她产生一种虚假的安全感。,ock of sou,The lock of soul,Language Study,close up: shut (sth.) esp. temporarily None of

22、us carried keys; the last one in for the evening would close up, and that was it. (line 3) It was common practice then that when the store owners wanted to go on vacation they simply close up. (No. 6, Page 83) 许多跨国公司正考虑结束他们在这个国家的业务，把生产转移到低工资国家或地区 。 Many international companies are considering closin

23、g up the businesses in this country and transferring production to low wage economies,The road has been closed up for repairs. 因为修路, 那条道路不通了。 This herbal ointment will help to close up your wound quickly. 这种草药膏会帮助你的伤口很快愈合。 The captain ordered his men to close up. 上尉命令士兵靠拢。 He closed up when he found

24、 he knew practically nothing about the subject under discussion. 当他发现自己对所讨论的问题实际上一无所知时, 就不再开口了。,vulnerable: exposed to danger or attack; unprotected,Suburbs and country areas are, in many ways, even more vulnerable than well-patrolled urban streets. (line 8) They young girl looked very vulnerable. 那

25、姑娘看上去十分柔弱。 与沙特足球队相比，中国队更易被击败。 Compared with Saudi Arabia soccer team, the Chinese team is more vulnerable. Migrant workers are vulnerable to exploitation. 流动工人易受剥削。,tranquil: calm, quiet and undisturbed,Visitors like to stay in this hotel because it is beautiful and located in a tranquil lake area.

26、She stared at the tranquil surface of the water. Calm it often implies deviation from what is morally or ethically right or proper. Mistake often implies misunderstanding or misinterpretation and is usually weaker than error in imputing blame or censure. Oversight refers to an inadvertent(无意的) omiss

27、ion or error that results from inattention.,look back on: think about (sth.) in ones past,When you look back on you your life, what moments would you cherish the most? In his speech the president looks back on the economic recovery and makes clear his desire to reduce the federal budget. More Expres

28、sions： look down on 轻视，看不起 look forward to 盼望；期待 look in 顺便看望；短暂访问 look on （常与as连用）旁观 May I look on with you? 我可以跟你合看这本书吗?,Look back on: deep and careful thought 沉思 反复考虑之后,我作出了决定. After much reflection, Ive come to a decision. 我很后悔我未加深思,说得太快. I am so sorry that I spoke too quickly and without reflec

29、tion. Phrases: Be lost in reflection 陷入沉思 On reflection 经考虑后 Cast a reflection on sb.s intelligence/common sense 指责某人的愚蠢/某人的缺乏常识,Useful Expressions,(门)关着但没上锁 带钥匙 (暂时)关闭 巡逻严密的城区街道,on the latch,carry keys,close up,well-patrolled urban streets,5. 据称很宁静的地区 6. 的时代结束了 7. 电子报警系统 8. 连接到,the allegedly tranqu

30、il areas,the era of is over,electronic alarm systems,hook up to,Useful Expressions,9. 内置,嵌入 10. 处于监控下 11. 设置路障 12. 保安,build in,under surveillance,put up barricades,security guards,Useful Expressions,13. 不让靠近 14. 电子搜查器 15. 看都不看一眼 16. 代表;表示,象征,hold/keep (sb.) at bay,electronic friskers,without so much

31、 as a sideways glance,stand for,Useful Expressions,17. 沉浸于,沐浴于 18. 误差率很小/大 19. 在人类文明的历史上,be bathed in,with/by a small/large margin of error,in the history of civilized man,Useful Expressions,20.玻璃滑门 Sliding glass doors 21.使成为建筑的一部分 Build in 22.撬开门 Pry the doors open 23.常常看到 It is not uncommon to see

32、 24.受监管 Be under surveillance by,25.公益广告 Public service advertisement 26.做精神赔偿 Make the psychic payment 27.新氛围 The new atmosphere 28.设置障碍 Put up barriers 29.出于某种原因 For some reason,30.把自己与隔绝开来 Barricade oneself against 31.主宰我们的生活 Take over our lives 32.大中型公司 A medium-to large-size company 33.出入卡 Access card 34.事实摆明 The fact remains that 35.登机口 Departure gate 36.电子透视装置 Electronic X-ray equi