Unit4 表语从句课件-高中英语人教版必修三

1、Predicative Clauses 表语从句表语Linda is an excellent student. 表语主语连系动词. Definition（定义）表语是用来说明主语的身份、性质、品性、特征和状态的，表语常由名词、代词、数词、动词过去分词、动词的-ing形式、副词、介词短语、形容词、不定式和从句等来充当。Eg. （例子）The person stood in front of you just now is my headmaster. I didnt know that it was you at that time. The door remained closed. Mar

2、ys daily job is cleaning the house. 名词充当表语代词充当表语动词过去分词充当表语动词- ing形式充当表语The house is not only large but also beautiful. When I went to your house, you were out. No one was in the dorm, when she arrived. My job is to teach you English. The reason why he came late was that his clock didnt work. 介词短语充当表

3、语副词充当表语形容词充当表语不定式充当表语从句充当表语. Position (位置) 表语常位于系动词（be等词）之后，与主语共同构成主-系-表结构 (Subject-Predicative structure) 的句子。. Linking Verbs (连系动词) 除动词be以外，还有一些后面可接表语的特殊连系动词，如：look, smell, taste, sound, feel, fall, come, go（变成）, become, grow（渐渐地变化）, turn(变成，一般用于颜色), appear, seem, get, keep, remain, stay等。. Notes1

4、. 上面提到的动词，不总是用作连系动词。2. 代词充当表语时，通常用代词的宾格形式。3. 选择时，区分该用动词过去分词、动词-ing形式还是动词的不定式充当表语 主语是动作的发出者，并且动作在持续进行时，用动词-ing形式； 主语是承者时，用动词过去分词；而当动作是主语要执行的多用不定式。 Eg. She remained there for a good hour, which surprised everyone. A. to stand B. stand C. stood D. standing D. The Predicative Clause(表语从句) 由一个句子充当句子的表语,

5、这个充当表语的句子就叫做表语从句。表语从句和主语指同一内容，它对主语进行解释，是主语的内容具体化。相当于一个名词。小结：1. 表语从句的构成:主系表2. 引导词: 连接词 that, whether, as if/though, because连接代词 whose, who, whom, what, which +ever3. 语序:主从句时态呼应一致原则4. 时态:陈述语序连接副词 when, where, how ,why that, whether (是否)引导从句。注：if不能引导表语从句。 (1) The trouble is that he has never done the w

6、ork before.(2) The question is whether we should ask them for help. 表语从句的引导词2. 由as if ,as though引导表语从句，表示好像。 句子中的系动词常用look, appear, seem等。(1) It looks as if it was going to rain.(2) The young man with long hair looks as if he were a girl. (1) The reason _he was late is _ his mother was ill. (2) His

7、mother was ill. Thats he was late. (3) He was late. Thats his mother was ill.whythatbecausewhy总结归纳1.The reason why. . . is that. . . 的原因是2. That is why. . . 那就是的原因(强调结果)3. This is because. . . 这是因为(强调原因)3. because (3) The problem is who we can get to replace her. (4) The problem is whom he is waitin

8、g for. (4) What I dont know is which book it is. (5) The mystery is whose castle it is. (1) The question is what caused the accident. (2) That is what he is worried about.4. 连接代词 who, whom, whose, which, what。5. 连接副词why, when, where, how。(1) This is how he did it.(2) That is why the brothers wanted

9、to make a bet.(3) That is where he was born.1.Maria has to look after her sister. Thats _ she cant come out with us. A. why B. how C. when D. what2. She looked _ she were ten years younger. A. that B. as if/though C. as D. likePractice3. What the doctors really doubt is _ my mother will recover from

10、 the serious disease soonA. when B. how C. whether D. why4. Are you still thinking about yesterdays game? Oh, thats _. A. what makes me feel excited B. whatever I feel excited about C. how I feel about it D. when I feel excited5. Go and get your coat. Its _ you left it. A. there B. where C. there we

11、re D. where there1. Without his support, we wouldnt be where/what we are now.2. This is what my father has taught meto always face difficulties and hope for the best.3. By boat is the only way to get here, which is how we arrived.4. The truth is that I have been there.5. It looks as if/ though it was going to rain.6. The reason why he failed is _he was too careless.7. Sara missed the bus. This is _ She was late for the meeting. 8. The question is _ it is worth doing.9. The problem is _ could do the