forecast

将“forecast”拆解为“fore”（未来）和“cast”（扔、掷），形象地想象未来像被掷出去的物品一样，可以被预测或投射。这种方法有助于记忆单词的含义，即“预测”。

forecast 预测

fore-,在前。cast, 投射。用于天气预报。

forecast (v.)

late 14c., "to scheme," from fore- "before" + casten in the sense of "contrive, plan, prepare" (late 14c.; see cast (v.)). Meaning "predict events" first attested late 15c. (cast (v.) "to perceive, notice" is from late 14c.). Related: Forecasting.

Whether we are to say forecast or forecasted in the past tense & participle depends on whether we regard the verb or the noun as the original from which the other is formed; ... The verb is in fact recorded 150 years earlier than the noun, & we may therefore thankfully rid ourselves of the ugly forecasted; it may be hoped that we should do so even if history were against us, but this time it is kind. [Fowler, 1926]

forecast (n.)

early 15c., "forethought, prudence," probably from forecast (v.). Meaning "conjectured estimate of a future course" is from 1670s. A Middle English word for weather forecasting was aeromancy.

1. The weather forecast is for showers and overcast skies.

天气预报上说多云并伴有阵雨。

2. Our forecast for 1990 was on the right lines.

我们有关1990年的预测大体是正确的。

3. Many traders forecast a continuation of the market's recent bearish trend.

很多交易商都预测最近市场的下跌趋势还将延续。

4. There was considerable scepticism about the Chancellor's forecast of a booming economy.

有相当多的人对财政大臣作出的经济会迅猛发展的预测表示怀疑。

5. The study also forecast an explosion in the diet soft-drink market.

该研究还预测低糖软饮料市场将迅猛增长。

【foretell, forecast, predict, foresee】
这组词都有“预言，预示，预告”的意思，其区别是：
foretell: 一般的通俗用语，往往指根据客观因素做出的预告，强调预先要发生的事。
forecast: 指对未来事件的预报、推测或设想，侧重最终可能出现的结果。
predict: 较正常的正式用词，通常用于人。指根据事实或自然规律进行推断后作出预告，隐含有科学的准确性。
foresee: 指提前、预先料到将要发生的事或指对未发生的事情形成一种概念或判断。

【prophecy, forecast, prediction】
prophecy: 根据个人感觉而作的预言
forecast: 预测，预报
prediction: 一般意义的预言，预告