Unit 2 Fit for life 1、chew vt. 咀嚼, 嚼碎, 深思 ◆Many people like to chew mint gum in the summer. 许多人喜欢在夏天嚼薄荷口香糖。 ◆You must chew your food well before you swallow it. 食物吞下去之前先要细细咀嚼 ◆I'll chew the problem over for a few days. 这个问题我会仔细思考几天。 我给你一天的时间来考虑。 I'll give you one day to . chew over 2、 vital adj. 至关重要的,有活力的,生死攸关的 ◆The government saw the introduction of new technology as vital. 政府认为引进新技术至关重要。 ◆The heart is a an. 心脏是维持生命必须的器官。 vital energies 生命力 vital style 生动的文体 a vital wound 致命伤 a vital question 生死攸关的问题 vital part (身体的)要害处 vital information The samples could give scientists about longterm changes in the earth's atmosphere. 这些样品能给科学家提供关于地球大气长期变化的至关重要的信息。 3、 accelerate v. 加速,提前,跳级 ◆The leader is losing ground as the rest of the runners accelerate. 领先者在其余赛跑者加速时就逐渐失去了优势。 ◆The car accelerated as it overtook me. 那辆汽车一加速就超过了我。 accelerated our departure The bad weather . 糟糕的天气促使我们早日离开。 4、 sharp adj. 锋利的, 突然的, 灵敏的, 明显的, 辛辣的 ◆Cats have sharp claws. 猫有锋利的爪子。 ◆There is a sharp drop in the prices. 价格出现暴跌。 ◆It was very sharp of you to have noticed that. 你注意到了这一点是够机灵的。 ◆Bring the object into focus if you want a sharp photograph. 要照出清晰的照片,就要把焦点对准物体。