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⑥Thank you, but I'll have to ____________ your offer. ⑦No matter how often they ___________， their welcome never wears out. 【答案】①打开 ②出现；到场 ③开大 ④turned out ⑤turn in ⑥turn down ⑦turn up It was obvious that the manager of the coffee shop was waiting for Li Fang to leave… 显而易见，咖啡馆的经理正在等待着李方离开…… 句型提炼： It＋ be obvious that… 在句中it作形式主语，that引导主语从句。It作形式主语时，可以代替不定式、动名词、从句，置于句首，无意义，用于平衡句式结构，常用句型有： (1)It be＋形容词(possible, strange, natural, important, necessary … )＋that从句 【句型剖析】 (2)It be＋过去分词(said, thought, believed, supposed, reported, suggested…)＋that从句 (4)It＋不及物动词(seem, appear, occur, happen…)＋that从句 (4)It be ＋名词短语(a pity, a fact, a wonder, an honour, no wonder… )＋that从句 It is difficult that we imagine what life was like for slaves in the ancient world. 我们很难想象古代奴隶的生活是什么样子。 It happened that she was out when we visited her. 我们去拜访她时她碰巧不在家。 【易错点津】 在“It is strange/natural/important/ necessary…＋that从句”中，从句谓语动词为“should＋动词原形”。 【即时巩固】 完成句子 ①很显然，他是在和我们开玩笑。 __________________________he is playing a trick on us. ②纪念那位科学家的晚会很可能在下周二召开。 ___________________ the party in memory of that scientist is to be held next Tuesday. | 
