必修1Unit1详解.ppt

【知识构建　?　记一记】 省略从句中的主语和be动词或it is/was 省略句 的形式 when, while, before, after, unless, as if等引导的状语从句中的主语与主句主语一致, 或状语从句的主语为it且谓语动词是be动词的某种形式 省略句 的条件 ②While landing, the astronauts found the earth becoming larger and larger. 降落时, 宇航员发现地球变得越来越大。 ③You should let us know the result as soon as(it is)possible. 你应尽快让我们知道结果。 【对接高考　?　做一做】 ④(2014·湖南高考)Children, _______________________________, are allowed to enter the stadium. 有家长陪伴时, 孩子们才被允许进入体育场。 when accompanied by their parents 6. I wonder if it’s because I haven’t been able to be outdoors for so long that I’ve grown so crazy about everything to do with nature. 　 我不知道这是不是因为我长久无法出门, 我变得对一切与大自然有关 的事物都无比狂热。 【思维激活　?　试一试】仿写句子 ①__________________________________he was punished by his teacher. 他是因为表现太差才受到老师的惩罚。 It was because he behaved so badly that 【知识构建　?　记一记】 it is/was. . . that/who. . . 强调句型 It is/was not until+被强调部分+that+其他部分 not. . . until. . . 句型的强调句 疑问词+is/was it+that+其他部分(若放于宾语从句位置应使用陈述语气) 特殊疑问句 Is/Was it+被强调部分+that/who+其他部分 一般疑问句 It is/was+被强调部分+that/who+其他部分 基本句式 ②Is it because he is ill that he can’t come? 是因为生病他才不能来吗? ③Why is it that he can’t come? 他为什么不能来? ④It was not until I met you that I knew real happiness. 直到我遇到你以后, 我才体会到真正的幸福。 【拓展延伸】强调句型与定语从句的区别 (1)强调句的特点: 去掉it is/was和that/who后句子结构完整, 意义清楚。如在例句①中, 去掉It was和that后变为: “Because he behaved so badly he was punished by his teacher. ”。 (2)时间、地点状语前是否有介词是判断这两种句式的关键。例如: It was at the school gate that I met an old friend of mine. (强调句) It was the school gate where I met an old friend of mine. (定语从句) 【对接高考　?　做一做】 ⑤(2014·四川高考)______because Jack came late for school ____ Mr. Smith got angry? 史密斯先生很生气是因为杰克上学迟到吗? Was it that 7. It was the first time in a year and a half that I’d seen the night face to face. 这是我一年半以来第一次目睹夜晚。 【思维激活　?　试一试】用所给动词的适当形式填空 ①That was the fourth time(that)she ________(ring)you in a week. 那是她一周内第四次给你打电话。 had rung 【知识构建　?　记一记】 (1)It is/was/will be the first/second/. . . time that . . . “某人第一/二/……次做某事”。 (2)当主句为一般现在时或一般将来时时, 从句的谓语动词用现在完成时; 当主句为