1、Science is endless. It is an eternal mystery.科学是永无止境的，是一个永恒之谜。第 1 页 共 5 页Unit 1 Science and scientistsDiscover useful structures课型：新授课课时：2 课时班级:_姓名:_小组:_【学习目标】【学习目标】Teaching Objectives：1.To master the target grammar- predicative clauses.;2. To use the grammar correctly.了解感知了解感知Lead-in:观察下面句子，注意划横线部分
2、：1.The person stood in front of you just now is headmaster.2.The door remained closed.3.My job is to teach you English.4.The reason why he came late was that his clock didnt work.深入学习深入学习1.What is predicative?表语用来说明_。表语常由_充当。2. 表语从句的定义表语从句的定义:The question is difficult.The question is who will do it.
3、在复合句中做表语的从句，叫做在复合句中做表语的从句，叫做_。它位于主句的系动词之后，对主。它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。语进行解释说明，使主语的内容具体化。3. 可以接表语从句的系动词有：可以接表语从句的系动词有：Science is endless. It is an eternal mystery.科学是永无止境的，是一个永恒之谜。第 2 页 共 5 页（1）状态系动词：）状态系动词：_（2）感官系动词：）感官系动词：_（3）持续系动词：）持续系动词：_（4）变化系动词：）变化系动词：_（5）终止系动词：）终止系动词：_4. 引导词引导词从属连词：_ (i
4、f 不引导表语从句)连接代词：_连接副词：_(1)that 在从句中仅起连接作用，无实际意义，在句中不作任何成分，不能省略。在从句中仅起连接作用，无实际意义，在句中不作任何成分，不能省略。My opinion is _ its getting better and better.(2)whether 在句子中不充当任何成分，但具有在句子中不充当任何成分，但具有“是否是否”的意义。注意：的意义。注意：if 不能引导表语从句。不能引导表语从句。The question is _ it is worth doing.The question is _ we can win them.(3)as if
5、/though 引导表语从句时，在句子中不充当任何成分，但有意义。译为：似乎，好像引导表语从句时，在句子中不充当任何成分，但有意义。译为：似乎，好像。He looks _ he were a rich man.It sounds _ someone is knocking at the door.as if/as though 引导的表语从句如果是事实引导的表语从句如果是事实，用陈述语气用陈述语气，如果与事实不符如果与事实不符，就用虚拟语气就用虚拟语气(主句一般现在时，从句就用一般过去时。主句是一般过去时，从句用过去完成时主句一般现在时，从句就用一般过去时。主句是一般过去时，从句用过去完成时
6、)。The young man with long hair looks _ he were a girl.Dark clouds are gathering. It looks _ its going to rain.(4) what 在表语从句中充当主语、宾语或表语，表示什么，什么样子，或在表语从句中充当主语、宾语或表语，表示什么，什么样子，或的（人或事）的（人或事）The question is _ caused the accident.That mountain is no longer _ it used to be.What he told you was _ had been
7、discussed at the meeting.(5)who 在表语从句中充当主语、宾语或表语在表语从句中充当主语、宾语或表语,表示谁表示谁The problem is _ could do the work.My trouble is _ I can turn to.Could you tell me _ he is?Science is endless. It is an eternal mystery.科学是永无止境的，是一个永恒之谜。第 3 页 共 5 页(6) which 在引导表语从句时，常充当定语，表语，表示哪一个，哪一些。在引导表语从句时，常充当定语，表语，表示哪一个，哪一些
8、。I read about it in some book or another, but what I dont know is _ (book) it is.(7)where, when, why, how 除在句中起连接作用外，在从句中还充当时间、地点、方式、原因除在句中起连接作用外，在从句中还充当时间、地点、方式、原因状语，本身具有词义。状语，本身具有词义。This is _ she was late for the meeting.这就是她会议迟到的原因。这就是她会议迟到的原因。The question is _ he did it.问题是他如何做此事的。问题是他如何做此事的。Tha
9、t is _ he was born.那就是他出生的地方。那就是他出生的地方。注意：主语一般不用注意：主语一般不用 reasonThat/It is /was why 那是的原因That/It / is/ was because 那是因为He was ill.Thats because he was sent to the hospital.(强调原因）He was ill.Thats why he was sent to the hospital. （强调结果）5. 使用虚拟语气的表语从句使用虚拟语气的表语从句My suggestion is that we (should) start e
10、arly tomorrow.在表示建议、劝告、命令含义的名词后的表语从句，谓语动词需用“should+动词原形” 表示，should 可省略。常见的词有：advice, suggestion, order, proposal 等。.迁移应用迁移应用.单句语法填空1The reason for your mistake is _ you lack confidence in yourself.2Thats _ we should do.3The doubt is _ has got away with the document.4He looked _ he were ill.5The best
11、 moment for the football star was _ he scored the winning goal.6Tom left immediately.Thats _ he only had 10 minutes to get to his next job!7All this was over twenty years ago，but it is _ it were only yesterday.8The question is_we will have our sports meet next week.9That is_ we were late last time.1
12、0That is_Lu Xun once lived.完成句子(用表语从句补全句子)1His promise is _ and make his parents happy.Science is endless. It is an eternal mystery.科学是永无止境的，是一个永恒之谜。第 4 页 共 5 页我相信通过努力我会成功的。2The fact was _ .事实是他没有真正的努力。3The question is _ .问题是这部电影是否值得看。4Now _ she had known Millie for years.现在看起来她认识米莉已有好多年了。5My advice is that you _ as often as possible.我的建议是你尽可能经常地练习说英语。6Thats _ .那就是我第一次遇见她的地方。7The problem is _ .问题是谁才真正适合做这份艰苦的工作。8To practise as much as possible is _ .尽可能多的练习就是他英语讲得好的原因。Science is endless. It is an eternal mystery.科学是永无止境的，是一个永恒之谜。第 5 页 共 5 页
