把正确答案的A、B、C或者D填在空格里即可。 Aviation security航空安全 interference(干扰,冲突) sabotage /ˈsæbətɑːʒ/ v. 破坏 paramilitary /ˌpærə'mɪlɪtəri/ adj. 准军事的,辅助军事的 hijack /ˈhaɪdʒæk/ vt. 劫持 anti-Castro Cuban exiles 反 卡斯特罗的古巴流亡者 Al-Qaeda 基地组织 第一空()1. What must you do when you travel by plane according to the passage? A) Open your luggage. B) Show your passport. C) Purchase a ticket. D) Pass through security. 第二空()2. According to the passage, what does airport security involve? A) Techniques used to protect passengers. B) Police. C) Armed guards. D) Strategies to reduce terrorists. 第三空()3. What action is an unlawful threat to airport security? A) Bringing a knife on the plane. B) Sabotage. C) Use of profane language. D) Arguing. 第四空()4. Where do you go in an airport after screening? A) Secure areas. B) Luggage depot. C) Passport agent. D) Directly onto the plane.