大学英语全新版综合教程Book 3Unit 3 SecurityText A The Land of the LockYears ago in America, it was customary for families to leave their doors unlocked, day and night. In this essay, Greene regrets that people can no longer trust each other and have to resort to elaborate security systems to protect themselves and their possessions. Teaching ObjectivesStudents will be able to:1. grasp the main idea (America is deteriorating into the most insecure nation) and the structure of the text (opening - body - conclusion);2. learn to use comparison and contrast in writing more effectively and to use keywords for more efficient reading;3. master the key language points and grammatical structures in the text;4. conduct a series of reading, listening, speaking and writing activities related to the theme of the unit. Before Reading1. English SongSaturday Night SpecialListen to the SongQuestions about the Song1) -Who is Mr. Saturday Night Special? The gun 2) -What is the message of the song? Its dangerous to have guns.2. Airport SecurityExtraordinary challenges require extraordinary measures. The terrorist attacks on America of September 11, 2001 require that Americans reform their Nations aviation security system in fundamental ways. On September 27, President Bush launched the process of reform by announcing his proposal for a $500 million federal grant program to strengthen aircraft security and federal management of airport security and screening services. 3. Security SystemsHold a discussion within students to see what equipment we usually use to keep us safe.security chains electronic alarm systems trip wires sliding glass doors with steel bars access cards electronic X-ray equipment high-intensity light rape whistles dead-bolt locks 4. Some Security Measures in Ancient TimeThe Great WallListen and answer the following questions.The Great Wall is a popular name for a semi-legendary wall built to protect chinas northern border in 3rd century BC, and fro impressive stone and earthen fortifications built along a different northern border in the 15th and 16th centuries AD, long after the ancient structure had disappeared. Ruins of the later wall are found today along former border areas from Bo Hai in the east to Gansu Province in the west.1) What was the aim of building the Great Wall originally?To protect Chinas northern border in the 3rd century BC.2) Where are the ruins of the Great Wall located now?From Bo Hai in the east to Gansu Province in the west. Castle Castles were built in places where they could be easily defended. A position on high ground provided the defenders with a view of the surrounding countryside, making attacks more difficult. In flat areas, castles were surrounded by a protective moat.5. Security Situations in the USATerrorist Attacks on Sept. 11, 2001 Wherever you were in lower Manhattan before September 11th, 2001, two buildings dominated the landscape. Critics said the World Trade Center towers didnt relate to their surroundings and werent especially pleasing in design. But the fact is that they were big, undeniably and frighteningly so, and a walk across the plaza in summer months could make your head reel. On February 26, 1993, the World Trade Center complex was rocked by an explosive device left in one of the underground parking lots; sit people were killed and over a thousand injured.On the morning of September 11, 2001, the United States of America awoke to find itself under attack. Several terrorist attacks within an hour wreaked havoc in New York City and Washington, D.C., causing widespread devastation and more than five thousand casualties on September 11, 2001. It was the deadliest day in American history, costing more lives than the attack on Pearl Harbor or D-Day. Separate hijacked commercial airliners hit both of the World Trade Center towers in Manhattan, setting them on fire and leaving gaping holes in each. Both eventually collapsed to the street below.Match the words in Column A which you will hear in the passage with the correct meanings in Column B.Column A Column B(C) 1.dominate A. to be in a state of confusion(F) 2.undeniable B. fall down(A) 3. reel C. to control or govern(D) 4.devastation D. severe damage(E) 5. casualties E. people killed or injured in an accident(B) 6. collapse F. unquestionably trueListen and decide whether the following statements are true (T) or false (F).1) The twin towers were located in upper Manhattan. (F)They were located in lower Manhattan.2) Many people claimed that the buildings went on well with the surroundings. (F)Many critics stated that they didnt relate to their surroundings.3) In 1993, the World Trade Center was attacked, but fortunately no one was hurt. (F)Six people