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课件网) UNIT 3 SEA EXPLORATION 主题语境 海洋探索 选择性必修第四册 Part 1 研考点 必备知识巧突破 1.extend vt.扩展;使伸长;延长;提供;伸展,展开 vi.适用于,包括;延 续(时间)→ adj.广阔的;大量的;广泛的→_____ n.延伸;扩大;延期 extend...to...向……提供……;给予…… extend to延长到 extend by延长了 extend one’s heartfelt gratitude to由衷感谢 extensive extension ①If you are in need of a deadline (extend), simply explain the situation to your professor. ②The plan will extend protection a significant number of areas that were previously unprotected. ③我要由衷地感谢您,没有您的帮助,我不可能取得这么大的进 步。(感谢信) _____.Without your help, I couldn’t have made such great progress. extension to I would like to extend my heartfelt gratitude to you 2.mercy n.仁慈;宽恕;恩惠→ adj.仁慈的;慈悲的;宽容的→ adj.残忍的;无慈悲心的 (1)show mercy to对……怜悯/宽恕 have mercy on/upon对……怜悯/宽恕 at the mercy of...任由……摆布 (2)be merciful to...对……仁慈 merciful merciless merciful they showed mercy to/had mercy on/upon the poor 3.possession n.[usually pl.]个人财产;拥有;控制→ vt.拥有;具有;支配 (1)take possession of (表示动作)占有;拥有 be in possession of (表示状态)具有;拥有 be in the possession of被……拥有;归……所有 (2)be possessed of sth.具有(某种品质或特征) possess ①Lucy told me that the necklace was one of her most treasured _____(possess). ②我的朋友鲍勃持有这家公司的大部分股份,其余的由其他工人 持有。 My friend, Bob, most of the company’s shares, and the rest other workers. possessions possesses/is in possession of are in the possession of enjoying what we possess/take possession of/are in possession of you possess/are possessed of a good state of mind will you achieve success 4.in hand在手头;可供使用 at hand近在手边;在附近 by hand手工,用手的 hand in hand手挽手;密切关联 on the one hand...on the other (hand)一方面……另一方面(用于表示 不同的尤其是相对立的两个方面) give sb. a hand 帮助某人;施以援手 in hand at hand give me a hand On the one hand on the other (hand) hand in hand 5.There is a need to do sth.“有必要做某事” [教材原句] From a scientific point of view, there is an urgent need to study the Arctic in order to understand climate change and its effects.从科学角度看,迫切需要研究北极,以了解气候变化及其影响。 常见的there be结构如下: (1)there is no need (for sb.) to do sth.(某人)没必要做某事 there is no denying that...不可否认…… There is no point/sense (in) doing sth.做某事没有意义 (2)there happen(s) to be...碰巧有…… there seem(s) to be...好像有…… ①急需选择一种既健康又环保的旅游方式,那就是骑自行车。 (环 境保护) _____ _____.That is bicycle riding. ②掌握理论而不实践是没有意义的。 without practice. There is an urgent need to choose a healthy and environment friendly way of traveling There is no point/sense (in) mastering theory There’s no denying that only if we deal with and overcome large numbers of difficulties Part 2 过基础 核心要点精准练 Ⅰ.语境填空———练熟高频词汇 1. There is no ... ...