2021新版人教版选修二英语Unit 1 grammar 表语从句 ppt课件.pptx

1、表语从句 Predicative Clause 定义 引导词 注意点 01 02 03 CONTENT 目录 表语从句的定义 PART 01 表语从句的定义 The definition of predicative clause The question is who will do it. The question is difficult. 在主从复合句充当表语的从句叫表语从句 表语从句的判断 The judgment of the predicative clause 1. What I want to say is that I am tired 2. She doesnt know

2、 whether she likes him or not. 3. He was sent to the hospital. Thats because he was ill. 4. It sounds as if somebody was knocking at the door. 5. The reason why he was late was that he missed the train this morning 表语从句的判断 The judgment of the predicative clause 系动词后的成分为表语。系动词后的从句为表语从句 系动词主要是be动词（am,

3、 is, are, was, were)，意为“是”。 其它系动词： 1)持续系动词（表示主语持续或保持一种状况或态度）：keep, remain, stay, stand 2) “像”系动词（表示看起来像）：seem, appear, look 3)感官系动词：look, feel, smell, sound, taste 4)变化系动词（主语变成什么样）：become, grow, turn, fall, get, go 5)终止系动词（主语已终止动作）：prove, turn out 表语从句的引导词 PART 02 引导词 Conjunction words 引导词引导词 用法用法 从

4、属连词 that 无成分，无意义 Whether 无成分，意为“是否” 连接代词 what,which,who,whom, +ev er, whose 在从句中充当主语，宾语，表语， 定语 连接副词 how, when, where, + ever, why 在从句中充当状语 其它连接词 because, as if ,as though 因为，好像，似乎 即学即练 learning and practice 1. This is _I want. 2. My English is limited. This is _I hate reading English books. 3. The v

5、illage is _ I used to spend my holiday. 4. It is _ I really love the way he behaves. 5. The trouble is _ we are short of funds. 6. My problem is _ coat is suitable for me. 7. I d like to start my own businessthats _ I want to do if I had the money. 8. What I want to know is _will support me. what wh

6、ere why because that which what who 表语从句的语法规则 PART 03 表语从句的语法规则 The grammar rulers of the predicative clause The question is how can I make you understand the knowledge. The question is how I can make you understand the knowledge. Rule 1 : 表语从句和宾语从句、主语从句一样，要用陈述语序： 主语+谓语。 表语从句的语法规则 The grammar rulers

7、 of the predicative clause Rule 2 : 表语从句的引导词没有if ! The question is if it is worthwhile to do it. The question is whether it is worthwhile to do it. 只用whether ,不用if的情况 Whether to do Whetheror not 介词后的宾语从句 从句：句首的主语从句，表语从句，同位语从句 表语从句的语法规则 The grammar rulers of the predicative clause Rule 3 : 表语从句的虚拟语气

8、My proposal is that we (should) start early tomorrow. I propose that we (should) start early tomorrow. It is proposed that we (should) start early tomorrow. 在表示“建议，劝说，命令”的名词 idea, advice, suggestion, request, proposal 等 后面的表语从句中，谓语动词用“should + 动词原形”，should可省略 表语从句的语法规则 The grammar rulers of the pred

9、icative clause Rule 3 : as if/as though 引导的表语从句常跟在look, seem, sound, feel等后面 语气： 若表示真实情况：用陈述语气 若表示非真实情况：用虚拟语气 Dark clouds are gathering. It looks as if its going to rain. It seemed as if the night would never end. 表语从句的语法规则 The grammar rulers of the predicative clause Rule 3 : as if/as though 引导的表语从

10、句的虚拟语气： 若跟现在事实不符：过去式（be动词用were） 若跟过去事实不符：had done 若跟将来事实不符：would/could+动词原形 The little boy talks as if he knew everything in the world. He felt as if he had met this young lady for a long somewhere. 即学即练 learning and practice 1. My suggestion is that we _ (go) to hospital at once. 2. When a pencil i

11、s partly in a glass of water, it looks as if it _(be) broken. 3. My idea is that we _(get) more people to attend the conference. 4. The little girl talked as if she _(be) a grown-up. 5. She looks as if she _(be) ten years younger. should go were should get had been were 表语从句的语法规则 The grammar rulers

12、of the predicative clause Rule 4 : because引导表语从句通常只用于“This/That/It is because”结构中。 I do so many things for you. It is because I love you. I am late this morning. That is because I left my bag on the subway. Your speech is excellent. This is because you prepared it a lot. 表语从句的语法规则 The grammar rulers

13、 of the predicative clause Rule 5 :当从句描述原因时： 主语为reason 时，引导词用that It, This, That 开头做主语，引导词用because She was late this morning. That was because she missed the early bus. The reason why he was late was that he missed the early bus. 表语从句的语法规则 The grammar rulers of the predicative clause Rule 6 :引导词that

14、, because, why的区别： 描述原因原因用that或because. 描述结果结果用why The reason was that you dont trust her. He was sent to the hospital. Thats because he was ill. He was ill. Thats why he was sent to the hospital. 即学即练 learning and practice 1.He is careless and irresponsible. That was _ he was fired. 2.He was fired. That was _ he is careless and irresponsible. 3. The reason _ he was fired was _ he was careless and irresponsible. why because why that 谢谢观看 Tanks for watching