1、Unit5 Period 4编写：李慧学习目标： 掌握同位语从句的意义及关系词的用法 自主合作探究：观察下列句子的结构并指出划线部分为何种从句。The thought that they could cross the whole continent was exciting.Some people have the idea that you can cross Canada in less than five days，but they forget the fact that Canada is 5,500 kilometres from coast to coast.The girls
2、 were surprised at the fact that ocean ships can sail up the Great Lakes.自我总结以上从句都是that引导的同位语从句。that在从句中不作成分，无意义，只起连接作用。同位语从句一、同位语从句的定义1在主从复合句中，跟在一个名词后(尤其是抽象名词)对其做出进一步解释说明的从句叫同位语从句。2跟同位语从句的名词一般是 fact，news，idea，truth，hope，problem，information，wish，promise，answer，evidence，report，explanation，suggestion，
3、conclusion 等抽象名词。二、同位语从句的引导词类别例词说明从属连词that，whether二者均在从句中不作成分；that无实义，whether意为“是否”。连接代词who，what等有实义，在从句中作主语、宾语、表语、定语等成分。连接副词when，where，how等有实义，在从句中作时间、地点、方式状语等成分。三、同位语从句应注意的几个问题1分隔式同位语从句：有时同位语从句与其说明的名词会被其他成分隔开，从而形成分隔式同位语从句，这样做主要是为了保持句子结构平衡，避免头重脚轻。Word came that we would have lessons on Saturday.有消息
4、传来，我们星期六要上课。2名词suggestion，order，demand，command，request，desire，proposal等后的同位语从句要使用虚拟语气，即从句谓语用“shoulddo”，should可省略。Wed better accept his suggestion that we(should)make good use of every minute.我们最好接受他的建议，好好利用每一分钟。3名词doubt(怀疑)后可跟同位语从句，若用于肯定句中时用whether引导；若用于否定句中时则用that引导。There is some doubt whether they
5、 will come to help us.他们是否能来帮助我们还不确定。Theres no doubt that Taiwan belongs to China.毫无疑问台湾是中国的领土。四、同位语从句与定语从句的区别1同位语从句对先行词作进一步的解释说明；而定语从句对先行词起修饰或限制作用。The foreigner expressed the hope that he would come to China again.(同位语从句)Ill remember the hope that the foreigner expressed to me.(定语从句)2同位语从句的先行词通常是抽象
6、名词，而定语从句的先行词无此限制。The possibility that scientists can clone a man may come true.(同位语从句)This is the horse that the scientist cloned.(定语从句)3that引导同位语从句在句中不作成分，通常不能省略，只起连接作用。that引导定语从句时为关系代词，它除了起连接作用外，在从句中还要充当某一成分(如主语、宾语等)，作宾语时可以省略。He made a promise to his son that he will buy a bike for him.(同位语从句)I st
7、ill remember the promise(that)he made.(定语从句)达标练习：1用适当的连接词填空1The news_we won the game made all of us excited.2He asked a question_we should have the party.3We are discussing the problem_he will come or not.4Actually I had no idea_it was true.5He has no idea_he should do next.6The problem_she was so s
8、ad made us puzzled.7I have some doubt_he will pass the driving test；he hasnt trained much.8The doctor gave me some advice_I should stay at home for a good rest.9We all had no idea_would take the place of our former boss.10I still have no idea_they came here quickly in such a short time.选词填空1.The new
9、s_our schoolmates had won the game soon spread over the whole school.(that/how)2.An idea occurred to him_he might go there by air.(that/where)3.Well discuss the problem_we should go aboard the train.(whether/what)4.I have a question_we will do.(what/which)5.The farmers are all very worried about the fact_the frost is coming.(that/where)6.The report makes people worried_some teenage girls smoke as much as boys in some middle schools.(why/that).Com.根据汉语提示完成句子1This is our only request (这个问题应该尽快解决)2We all doubt (他能否准时到来)3People have no idea (飞机去哪儿了)4News hasnt been known (这些学生何时离校) 版权所有：高考资源网()
