听力文本：

Questions 3 and 4 will be based on the following news item.
问题3和问题4是关于新闻听力的JFyJuadT6oJgE~。

An Olympics security plan five years in the making is taking shape in Vancouver this week.
本周，温哥华五年期奥运安全规划已现雏形Ojd%K._7O1+7.A!w。
The Canadian Police is heading up the $900 million security operation, the largest in Canada's history.
加拿大警方的安保开支将高达9亿美元,成为加拿大史上安保开销最大的一次@G]RkNp+ttN*z。
It will involve 15,000 police, private security and military personnel.
此次安保工作共投入15000名警察、私人保安和官兵bSCUfP-t^G|7UAN。
The Winter Olympics will take place February 12th to 28th in 2010 in Vancouver.
冬奥会将于2010年2月12日至28日在温哥华举行V%Gan=!H-f。
Political protests may pose the biggest threat to the games.
冬奥会最大的威胁可能是政治抗议c1=IeyJae2y。
The threat of terrorist attack is rated as low.
警方认为恐怖袭击的概率比较小pEg#)KUEVd1VZJZh。
But the memory of the 1972 Munich Olympics has not gone away.
1972年，慕尼黑奥运会遭遇的恐怖袭击仍然记忆犹新.)Kx~WziJc(-M。
That year, a terrorist group attacked the athletes' village,
当时，一个恐怖组织袭击了运动员村，
eventually killing 11 Israeli athletes and coaches.
杀害了11名以色列运动员和教练5sRn]xJBfZ.H。
It is no coincidence that in Vancouver security patrols are particularly evident around the low-rise apartment buildings, where the athletes will be housed.
此次温哥华冬奥会在运动员们居住的低层建筑周围投入的安保巡逻力量尤为显著MtzZZN*iRJuPm&*V5。
In downtown Vancouver some roads are already closed, and rings of security fencing surround some key venues.
温哥华市中心的一些道路已经封闭，一些重要场所也用安全护栏围了起来JLp,=4OcGUDGKfR|tCZ。
What's more, 900 surveillance cameras will be put on top of fencing to detect dangers.
更重要的是，护栏顶端安装了900台监控摄像实时监测周围环境I7fVgLmULa。

Question 3.What may be the biggest threat to the 2010 Winter Olympic Games?
问题3 2010年冬奥会的最大威胁是什么?
Question 4.Where is the presence of security patrols most evident?
问题4 此次安保巡逻最显著的地方在哪里？

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