2012.7.31 单词 US drought pushes up food prices

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美国中西部的干旱导致玉米和大豆歉收，主要饲料作物价格预计明年上涨，但水果和蔬菜不受影响，因为它们通常灌溉。农业部预测玉米产量会创纪录，但在上个月发布食品价格预测时，没有考虑到干旱的严重程度。其他国家也将受到影响，因为美国食品出口在过去几年大幅增长。

来源：http://www.bbc.co.uk/worldservice/learningenglish/language/wordsinthenews/2012/07/120730_witn_usa_food.shtml

The drought affecting large parts of the Midwest has withered corn and soybeans in the fields. Those are the staple crops most commonly used to feed animals. As a result, beef, pork and dairy prices are expected to jump next year - but fruit and vegetables will not be affected because those crops are usually irrigated. The department of Agriculture had been predicting a bumper year for corn, but didn't realise how bad the drought would get when it made its food price projections last month. Other countries will also be affected, because US food exports have jumped dramatically in the past few years.

drought

long period of dry weather leading to water shortages

withered

dried out and shrivelled

staple crops

most important foods

irrigated

watered by using pipes, ditches and streams

a bumper year

a larger than usual period of growing

projections

estimates or forecasts