题目内容：

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式，并将答案填写在答题卡相应的位置上。

If you’ve ever ridden public transport, you’ve probably heard snoring(打鼾) and found someone sleeping in the seat across from you. The natural vibration(震动) of buses and subways 1.(make) us feel sleepy, according to a new study in Science Alert.

Why? It’s all about sensory input-information going to your brain. On a bus, your senses give you 2.(continue) and repeating information. For example, the air conditioner and engine create constant white noise. Meanwhile, you are sitting still and your 3.(surrounding) don’t change. The vibrations of the engine are also opening. Your brain has almost no new information to process.

Repeating information will be 4.(ignore) eventually and your brain will enter a low-energy state. The fact that you fall asleep quickly with your eyes 5.(close) on a bus is because your brain gets used to all the repeat.

“When you’re tired, it doesn’t take much time 6.(start) nodding off and we’ve found that the gentle vibrations made by car seats 7. you drive can loose(使放松) your brain and body,” said Stephen Robinson, 8. researcher from the RMIT University in Melbourne, Australia.

Robinson’ s team mentioned 15 volunteers’ heart rate variability(心率变异性)—a well-known indicator of sleepiness. This line of research can assist in the development of practical and relevant guidelines for limiting 9.(expose) to vibrations in the car industry. Robinson believed that the research could be helpful 10. improving road safety. “We hope that future car seat designs can build in features to disturb this lulling effect and fight vibration-induced(震动引起的) sleepiness,” he said.