学习目标:1 了解什么是非性定语从句 能够与并列句区分开来
2. 掌握非性定语从句中关系词的使用 尤其是which whom as的用法
Task 1 什么是非性定语从句
判断下列几组定语从句,判断哪些是非性定语从句,哪些是性定语从句。
A : Teachers who are kind are popular with the students.
B: Mr. Wang, who is kind, is popular with the students.
A: he has a son who is a doctor
B: he has a son, who is a doctor
归纳:非性定语从句的特点是会被一个_________________隔开。
Task2 非性定语从句 与并列句的区别
判断下面句子当中,应当填什么?
•He has two sons. Both of_____ are teachers. ( 句)
•He has two sons, and both of ______are teachers. ( 句)
•He has two sons, both of _______are teachers. ( 句)
•He failed his English text, ___________made him very upset( 句)
•He failed his English text, and ______________made him very upset. ( 句)
归纳:句号隔开的是两个简单句,逗号+并列连词如and ,or ,but等隔开的也是简单句,句子缺主语或宾语应当填____________代词如it he 等。
只是被逗号隔开无连词连接的情况下,其中有一个是定语从句,缺主语或宾语应当填_____________代词
•
Task 3: 非性定语从句中关系词的使用。
仍然是采用判断先行词在定语从句中充当什么成分来做题。但值得注意的是:
1.不可用that. 解释: 如果先行词在定语从句中做主语或宾语,指人的主格只能用who, 宾格只能用whom,指物的只能用which., 所属关系仍然是whose. 所有关系词都不能省略。
活学活用
1. The famous basketball star, _____ is an American, came to China yesterday.
2. In those days, she used to go to Mr. Black, with ______ she had a wonderful time.
3. I bought a car yesterday, ______ cost me a lot.
4. Xi’an, ______ I visited last year, is a nice old city.
5. The manager’s daughter, _______ name is Ann, gave me a patient smile
2. 当先行词在定语从句中做状语,做时间状语就用when = 相应介词 + which
做地点状语就用where = 相应介词 + which,做原因状语就用for which(不可用why)
6 He will come to see me next July, _______ he won’t be so busy.
7. The school, _______ I once studied, was built thirty years ago.
8 he has been very interested in plants and earth since his childhood, __________ he determined to choose geography as his major(专业) in college
3. which 和as 还可以用来指代整个句子。which在逗号之后,指代上文;as 可以放在句首,句中,更灵活。此外as 还可以有一些固定的搭配。
_____ we know, smoking is harmful to one's health.
The sun heats the earth, ______ is very important to us.
补充:as 引导非性从句,常意为“正如”。 可出现在句首、句中、句末。常见结构有
•as is known to all
•as is often the case
•as might / could be expected
•as has been said before
•as has been mentioned above
•as has been pointed out
• as can be imagined
•as can be seen (from these figures
•关系代词as在定语从句中指代整件事,充当句中的主语或者宾语,它经常和the same, such, as一起搭配使用,共同构成一个固定词组。
•As we all know, he is a famous scientist.
•As is expected, he is a diligent boy.
•She has the same book as you have
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附加提高题
•The earth is round. ____ is known to all.
• The earth is round, _________ is known to all.
• ____ is known to all, the earth is round.
• ____ is known to all that the earth is round.
•____ is known to all is that the earth is round.