27.1同位语从句概述
同位语从句一般放在fact， news， idea， truth， hope， problem， information， belief，thought， doubt， promise， question 等名词的后面，对前面的名词作进一步的解释，说明前面名词的具体含义。
27.2同位语的表现形式
同位语的表现形式有以下几种。
（1）名词。例如：
Tom， our monitor， is a handsome boy.
我们的班长汤姆是一个帅气的男孩。
（2）代词。例如：
I myself will do the experiment.
我将自己做这个实验。
（3）数词。例如：
She is the oldest among them six.
她是他们六个人中年纪最大的。
（4）从句。例如：
He told me the news that the plane had exploded.
他告诉我飞机爆炸的消息。
27.3同位语的引导形式
同位语的引导形式有以下几种。
（1）由such as， that is 引导。例如：
Some subjects， such as math and physics， are very difficult to learn.
某些学科，例如数学和物理，是很难学的。
（2）由of 引导。例如：
Great changes have taken place in the city of Beijing since 2000.
自从2000 年以来 北京市发生了很大的变化。
（3）由or 引导。例如：
The freezing temperature， or freezing point， is the temperature at which water freezes under ordinary pressure.
结冰温度即冰点，是水在常压下结冰时的温度。
（4）由连词 that，whether 及连接副词 how， when， where 等引导。（注：if， which 不能引导同位语从句。）例如：
The hope that he may recover is not gone yet.
他可以康复的希望依然存在。
The problem whether we should continue to do the experiment has been solved.
我们是否继续做这个实验的问题已经解决。
I have no idea when he will come back.
我不知道他何时回来。
（5）有时同位语从句可以不紧跟在说明的名词后面，而被别的词隔开。例如：
Several years later， word came that Napoleon himself was coming to inspect them.
几年以后，有消息传来说拿破仑要亲自视察他们。
The thought came to him that maybe the enemy had fled the city.
他突然想起可能敌人已经逃出城了。
Dialogue & Analysis（此处有视频学习资料）M1： Come back to reality， Dom.Please.Reality.
M2： Those kids， your grandchildren， they are waiting for their father to come back home.
That"s their reality.And this job， this last job， that"s how I get there.I would not be standing here if I knew any other way.
R
ole Play
Watch the video one more time， try to imitate the dialogue with your partners， and then， show your performance to your classmates.
选择题。
1.The fact has worried many scientists the earth is becoming warmer and warmer these years.
A.what
B.which
C.that
D.though
2.News came from the school office Zhang Chao had been admitted to Haibin College.
A.which
B.what
C.that
D.where
3.Tomorrow is Emily"s birthday.Have you got any idea the party is to be held？
A.what
B.which
C.that
D.where
4.A warm thought suddenly struck me I might buy a pair of shoes for my father"s birthday.
A.if
B.when
C.that
D.which
5.Do you have any idea is actually going on outside the office？
A.that
B.what
C.as
D.which
Fun Time
Tom： William， our good friend， has asked me for a loan of five pounds.Should I be doing right in lending it to him？
汤姆： 我们的好朋友威廉向我借五英镑。我该不该借给他呢？
Jack： Certainly.
杰克： 当然应该了。
Tom： And why？
汤姆： 为什么？
Jack： Because otherwise he would try to borrow it from me.
杰克： 否则他就该跟我借了。