英语选修6人教新标Unit 4 Global .ppt

我们写说明文概括的时候，主题句最好瞄准说明的对象来突出写作目的，支撑句则说明对象有的特征补充被说明的对象。 两个样本的主题句都扣题，但不够深入，文章是主要比较了两种方法的好处。样本1与样本2的主题句差不多，但是它的支撑句太虚弱，没有说明各自的优点。因为“ … advantages and disadvantages of their own”过于简单，没有具体的内容。相反，样本2各自列举了“use their time better”和“ … communicate with each other”，虽然不够准确，但是给了我们具体的内容，这是它的优点。因此，样本1可以评2分，样本2可以评4分(5满分)。 【答案】 主题句——瞄准说明的对象 The article compares the benefits of studying alone with those of studying in groups. 支撑句——说明对象的特征 Studying alone allows students to remain focuses and avoid interruption，while group study creates a more enjoyable learning environment. * 配人教版　英语　选修6 Period 3　Grammar it用于强调句式 “It is/was＋被强调部分＋that/who＋句子的其余部分”结构 it的用法(Ⅱ) 1．it结构概述 it用在强调结构中，为了强调句子的某一成分(通常为主语、宾语和状语)。 My mother met Tom in the street yesterday. →It was in the street that my mother met Tom. 我母亲就是在大街上遇到了汤姆。 2．it结构在句中的应用 (1)强调主语 It’s only I who am willing to go to the cinema. 想去看电影的只有我。 (2)强调宾语 It was her that I met yesterday. 我昨天见到的是她。 (3)强调状语 It was because her mother was ill that she didn’t go to work.是因为母亲病了她才没有去上班。 3．it结构的否定句 It was not for several years that I had an opportunity of seeing him again.(＝I did not have an opportunity of seeing him again for several years.) 我有好几年没有机会再见到他了。 4．it结构的疑问句 (1)这种强调句的一般疑问句只需把is/was提前。 Was it you that broke the window? 是你把窗户打破了吗？ Is it Professor Wang who teaches you English? 是王教授教你们英语吗？ (2)这种强调句的特殊疑问句，只需在一般疑问句前加上疑问词就可。 Who was it that broke the window? 打破窗子的是谁？ When was it that you called me yesterday? 你昨天是什么时候打电话给我的？ What is it that you want me to do? 你要我做的是什么？ How was it that you succeeded? 你是怎么成功的？ 5．有时可用It might be … that … ，It must have been … that … 句型表示强调 It might be his father that you’re thinking of. 你关心的可能是他父亲。 It must have been his brother that you saw. 你看到的想必是他的兄弟。 6．在现代英语中，that/whom可省略 Was it in Nanjing(that) you first met him? 你是在南京第一次碰到他的吗？ It was my mother(whom) you saw the other day. 你几天前见到的是我妈妈。 7．这一强调句型可用于原因状语从句，当原因状语从句是as，since引导时，应改为because引导，但结果状语从句、条件状语从句、让步状语从句等不能用于这一强调句型 She missed the first bus since she got up