Unit 1 Science and scientists Discover Useful Structures 表语从句（ppt课件）-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、This was our performance at the sports meeting.Everyone got excited.What do the sentences have in common in their structures?Lead inThey seemed to be energetic.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。They seemed to be energetic.This was our performance at the s

2、ports meeting.Everyone got excited.predicativeGrammar:Predicative Clause 在复合句中充当表语的从句叫表语从句。位于主句的系动词之后，对主语进行解释、说明，使主语的内容具体化。表语从句必须用陈述语序。What linking verbs（系动词）do you know?1.the conjunctions(连词连词)2.the mood in predicative clause(语气语气)3.sentence patterns(特殊句式特殊句式)连接词连接词从属从属连词连词:that,whether,as if,as th

3、ough,because 连接副词连接副词:when,where,how,why连接代词连接代词:what,who,whom,whose,which,+ever（在从句中不作成分）（在从句中不作成分）（在从句中作（在从句中作主语、宾语、表语、定语主语、宾语、表语、定语）（在从句中作（在从句中作状语状语）1.the conjunctions连接词连接词1.The question is _ they could handle the problem.2.From space,the earth looks blue.Thats _ about 71 percent of its surface

4、is covered by water.3.What I can see is _ the police are trained to defend themselves against attacks.4.What makes us curious is _ led to EDGs achieving fame.5.This is _ my mother has taught me-to face my fault bravely.whether becausethatwhatwhat注意：as if/as though引导的表语从句如果是事实，就用陈述语气；如果与事实不符，就用虚拟语气。1

5、.It sounds as if someone _ knocking at the door.(与事实相符)2.Tom likes to talk big as if he _ an important person.(对现在的虚拟，用一般过去时，be动词用were)3.He opens his mouth as if he _ say something.(对将来的虚拟，用would/could/might+do)4.He talked about Rome as if he _ there.(对过去的虚拟，用had done)iswerewouldhad been2.the mood语气

6、语气主语是表示“坚持，命令，建议，要求”等名词时，从句要用虚拟语气，即从句谓语动词用“should+动词原形”，should可以省略，这类名词有：一坚持：insistence2.The mood 二命令：order，command三建议：suggestion，advice，recommendation四要求：demand，requirement，request，askproposal3.The reason is that./The reason why.is that.(.的)原因是.原因是他没有努力学习。The reason was that he didnt study hard.他没及

7、格的原因是他没有努力学习。The reason why he failed the exam was that he hadnt studied hard.because whyPractice改错1.The reason why I was sad was because he didnt understand me.because-that2.His suggestion is we should stay calm.is that we3.His requirement was that everyone hands in their homework on time.hands-han

8、d4.The chopsticks in the water look as if they are broken.are-were1 1、表语从句一定是个陈述语序。、表语从句一定是个陈述语序。The question is when will he come.The question is when he will come.The question is whether is the enemy marching towards us.The question is whether the enemy is marching towards us.It looked as if had h

9、e understood this question.The question is if he has passed the test.The question is whether he has passed the test.2 2、if可以引导宾语从句，但是不能引导表语从句，引导表语从句表可以引导宾语从句，但是不能引导表语从句，引导表语从句表达达“是否是否”只能用只能用whether：3 3、主句时态和表语从句时态可以不一致。主句时态和表语从句时态可以不一致。The question is who will company me to Paris.The question is why

10、 he was absent.Summary：1.表语从句的结构:主语+系动词+引导词+简单句2.引导词:连词：that,whether,as if,as though,because 连接代词：who,what,which,whom,whose.+ever连接副词：when,where,how,why,.+ever3.注意点:3）if 不引导表语从句。4）表语从句的虚拟语气。1）语序:连主谓。2）that引导表语从句时不能省略。表语从句1.The most pleasant thing of the rainy season is_one can be entirely free from

11、dust.2.A ship in harbor is safe,but thats not_ships are built for.3.The best moment for the football team was _ he scored the winning goal.4.Grandma pointed to the hospital and said,“Thats _ I was born.”5.“Every time you eat a sweet,drink green tea.”This is _ my mother used to tell me.6.From space,t

12、he earth looks blue.This is _ about seventy-one percent of its surface is covered by water.consolidationwhatwhenwherethatwhatbecause consolidation7.Actually,girls can be _ they want to be just like boys,_ it is a pilot,an astronaut,or a manager.8.You are saying _ we are equal and thats_ I agree.9.He said that everyone should get equal pay.That is _I disagree on.10.Why we decided to put off the football match was _ the weather was too bad.11.I went to attend the lecture yesterday.Is that _ you had a day off?whatever whetherthat where whatthatwhy