F．Stretch your arms to the full length so that you can make more space to move in the crowd.

　　G．What's worse is that the stampede can be caused while there seems no actual danger.

　　文章大意：本文是一篇说明文，告诉读者在发生踩踏时，如何自救。

　　1．G　文章第二句The bad thing is that a peaceful group of people can quickly turn into a crazy panicked crowd.选项G中的信息What's worse is that the stampede can be caused while there seems no actual danger.与画线部分信息是递进的关系，故选G。

　　2．A　Make yourself aware of the type of ground you are standing on. 句子重点是告诉读者对所处地面情形的把握，与下文If you are in a crowd of moving people, wet or uneven ground can be slippery or dangerous, causing you to fall信息相符，故选A。

　　3．D　根据上文If you find yourself in the middle of a moving crowd, do not fight against the pressure, do not stand still or sit down.建议不要对抗人群压力，不要站着不动或坐下，选项D中的instead, move in the same direction of the crowd. 恰恰是建议读者如何做：沿着人群的方向走，故选D。

　　4．E　选项E中的Keep your hands up by your chest, like a boxer. 恰恰是下一句的It gives you movement and protects your chest.中的it所指代的内容，故选E。

　　5．B　选项 B中Do not lie on your stomach or back, as this dangerously exposes your lungs.与下文finding a right posture can save your life. 在内容上是一致的，故选B。

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