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一. 定语从句与单句(注意标点符号。两个单句间用句号， 而定语从句两个句子间用逗号。)
mother told the lazy boy to work, ____didn’t help
mother told the lazy boy to work. _____didn’t help.
e are 56 students in our class, most of ____are girls.
A. which C. them D. that
二.定语从句与并列句(注意用标点符号和连接词and, but等来区别。)
Li has three daughters, none of________ is an engineer.
Li has three daughters, but none of__________ is a dancer.
Li has three daughters; none of __________ are doctors.
三. 定语从句与强调句
强调句型可以还原成正常语序的句子，也就是说，强调句型中去掉It be… that后，句子仍然通顺，意义也依然完整，只是没有那么强调突出。而定语从句去掉了It be… that后句子就不完整了。
1. It is on themorning of May 1st _____ I met John at the airport.
It is the morning of May 1st _____ I met John at the airport.
2. It is in thefactory _______John works.
It is the factory_______John works.
was 5 o’clock in the morning _____he arrived home.
四. 定语从句与地点状语从句(看是否有先行词，如果有，就是定语从句，如果没有，就是状语从句)
doesn’t grow well _____ there is not enough water.
2.I still remember the farm_____ my parents worked ten years ago.
对比下面两个句子：
He left the key where it was an hour ago.
He left the place where he lived for many years.
The visitor asked the guide to take his picture _____ stands the famous tower.
e h D. there
五. 定语从句与结果状语从句
在定语从句中，若先行词被such 修饰时，关系词要用as, 组成such…as结构.这个结构与状语从句such…that…(如此…以致…)很相似，要注意区别。若从句中的及物动词后无宾语，就是定语从句， 用such…as.否则就是状语从句，用such…that.
1.I have the same computer _____you have. ( as)
2. She is such akind girl _____all of us like to make friends with her. (that)
对比下面两个句子：
He is such a good teacher as we all love and respect.
He is such a good teacher that we all love and respect him.
练习：It is such a good place _____everybodywants to visit _____it is well-known all over the world. ( C)
A. which; that ; as C. as ;that D. that; as
六. 定语从句与习惯句型.
注意固定句型：It is the first/second/third time that+ 从句(从句用现在完成时)
is the firsttime ______she has been in Shanghai.
was the time_______Chinese people had a hard life.
答案:
七. 定语从句与名词从句
1、定语从句与表语从句
the factory where he worked near your school?
他工作过的工厂靠近你学校吗?
the factory the one where he worked?
这就是他工作过的工厂吗?
the factory where he worked?
这工厂就是他工作过的地方吗?
析：这三个句子结构相似，均是主系表结构。若先将疑问句变为陈述句，再判断其从句的`功能有助于理解。上述例句分别可变为：
1The factory where he worked is near our school.
2)The factory is the one where he worked.
3)The factory is where he worked.
显然句1、2中的从句为定语从句，句3中的从句为表语从句。
2．定语从句与同位语从句的区别。
首先看引导从句的关系词that是否在从句中充当句子成分。如果在从句中充当主、宾、表，则是定语从句。再看that前的名词是否是一些需要有内容的名词，如：idea, fact, thought, news等。后面的从句是说明其内容的，（这个名词在后面的从句中部充当任何成分），这个从句则是同位语从句
Thenewsthattheyhadwonthematchinspiredusgreatly．他们赢得了比赛的消息极大地鼓舞了我们。2．Thenewsthattheytoldusyesterdayprovedtrue．他们昨天告诉我们的消息结果证明是真的
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