趣味青春英语电台 第264期:Put your money where the mouth is

 　　Idiom:

　　Put your money where the mouth is ( support your words with actions )Hit the book:

　　Humming noise

　　Auxiliary¹

　　Flicker²

　　Whine³

　　Hydraulic⁴

　　Taxiing

　　Unnerving

　　Prolong

　　Flap

　　The humming noise when you board

　　That's the auxiliary power unit at the back of the plane. "That baby hums along while you are boarding the plane to keep every thing up and running while the main engines are off," says Leary. "In addition, most airports hook the plane up to the ground units to pump air and electricity into the plane to save money." When the doors close, you may notice the noise changes, and the lights will flicker, as the pilot switches from the airport system to the aircraft system. Next you'll hear the engine's being started – first "the whine of the spin-up" and then "the roar".

 

1 auxiliary   

adj.辅助的，备用的

参考例句：

• I work in an auxiliary unit.我在一家附属单位工作。
• The hospital has an auxiliary power system in case of blackout.这家医院装有备用发电系统以防灯火管制。

2 flicker   

vi./n.闪烁，摇曳，闪现

参考例句：

• There was a flicker of lights coming from the abandoned house.这所废弃的房屋中有灯光闪烁。
• At first,the flame may be a small flicker,barely shining.开始时，光辉可能是微弱地忽隐忽现，几乎并不灿烂。

3 whine   

v.哀号，号哭；n.哀鸣

参考例句：

• You are getting paid to think,not to whine.支付给你工资是让你思考而不是哀怨的。
• The bullet hit a rock and rocketed with a sharp whine.子弹打在一块岩石上，一声尖厉的呼啸，跳飞开去。

4 hydraulic   

adj.水力的；水压的，液压的；水力学的

参考例句：

• The boat has no fewer than five hydraulic pumps.这艘船配有不少于5个液压泵。
• A group of apprentics were operating the hydraulic press.一群学徒正在开动水压机。