The girls were surprised at the fact that ocean ships can sail up the Great Lakes.

1. Summing up: noun clauses as the appositive.

　　　　　　　　　　　　　　　 同位语从句

在主从复合句中, 用作同谓语的从句, 叫同位语从句. 它一般跟在某些名词( 如fact, news, truth, hop, problem, information, wish, promise, evidence, report, explanation, suggestion, conclusion) 等后, 用以说明或者解释前面的名词.

连接词:

A. 从属连词: that, whether等.

The news that they had won the game soon spread over the whole city.

We will discuss the problem whether the sports meeting will be held on time.

B. 连接代词: what, who等.

Next comes the question what you want to put in the box.

I have no idea who he is.

C. 连接副词: how, when, why等.

I have no impression how he came back, perhaps by bike.

I have no idea when he will be back.

同位语从句与定语从句的区别:

从形式上看, 同位语从句和定语从句很相似, 都是放在某一个名词后面, 但同位语从句不同于定语从句. 同位语从句对名词加以补充说明, 是名词全部内容的体现; 定语从句说明先行词的性质与特征, 与先行词是修饰与被修饰的关系.

The news that our team has won is true. (同位语从句)

The news that you heard is not true. (定语从句)

That 在同位语中不作任何成分, 是从属连词; 而在定语从句中但任句子成分, 是关系代词.

The fact that we succeeded pleased everybody.

The fact that we talked about is very interesting.

Step 4 Grammar practice

Turn to page 37 and do Exercise 2 in Discovering useful structures.

Turn to page 71 and do Exercise 1.

Step 5 Closing by a quiz.

1). They have no idea at all -----.

A. where he has gone B. where did he go C. which place has he gone D. where has he gone

2). I have no idea ----- far the airport is from here.