地道英语口语500句 迷你对话学地道口语第264期:极为罕见 千载难逢

迷你对话学地道口语第264期:极为罕见 千载难逢  

迷你对话：,A: The river is much higher then the ground.,河比地还高。,B: How dangerous!,多危险呀！,A: Yes, it is.,是呀，很危险。,B: What if the river overflowed it’s bank?,河水要是涨过了岸，怎么办？,A:That would be disastrous.,那可遭殃了。,B: The whole city will get flooded?,整个城市就会被水淹了。,A:Of course. But that happens only once in a blue moon.,就是，不过那几百年也不见得会遇上一次。,地道表达：,once in a blue moon,解词释义：,根据观测，在一定条件下，即大气中含有一定数量的，大小合适的微尘时，太阳和月亮就会成深蓝色。这种微尘可能来自火山爆发，沙漠的风沙或森林大火。本身这种现象就已经较为罕见，那么蓝色的月亮就更为罕见了，因此人们用once in a blur moon来表示“难得有一次”、“极为罕见”和“千载难逢”的意思。,支持范例：,You get a chance like this only once in a blue moon.,这种机会你是很难得到的。,He gets drunk only once in a blue moon.,他难得喝醉酒。,Great writers like Mark Twain only appear once in a blue moon.,像马克吐温那样伟大的作家,是很罕见的。,He gives us a treat only once in a blue moon.,他招待我们一顿可真是千载难逢。,词海拾贝：,1.overflow：vt. 淹没,Eg. Your bath isoverflowing.,你澡盆里的水都溢出来了。,Eg. The river overflowed (its banks).,河水氾滥（溢过堤岸）了。,2. disastrous：adj. 灾难性的,Eg. The effect on coffee prices has beendisastrousfor the producers.,对咖啡价格的影响对生产商而言是灾难性的。