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每日一练(每日英语跟读)
导语:学英语,每日一练frighten、warn、announce、threaten
It is predicted that heavy rains are ____to flood the area in a few days.
A. frightening
B. warning
C. announcing
D. threatening
【答案】D. threaten vt. (以自然灾祸作主语)预示要,有可能会(如The dark clouds threaten to rain. Her nervousness threatens to ruin the whole idea.)。frighten vt. 使惊恐,吓唬(后面不能跟不定式)。warn vt. 警告,告诫(句型:warn sb of/about danger; warn sb against+动词ing形式;warn sb not to+动词原形;warn sb that……)。announce vt. 预示(以名词作宾语,不跟不定式)。
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