來源:網絡資源 2023-03-24 11:37:34
中考英語知識點:非限定性定語從句
	  由as, which 引導的非限定性定語從句,as和which可代整個主句,相當于and this或and that。as一般放在句首,which在句中。例如:
	
	  As we know, smoking is harmful to one's health. 如我們所知,吸煙有害健康。
	
	  The sun heats the earth, which is very important to us.
	
	  太陽使地球暖起來,這對我們人類很重要。
	
	  典型例題
	
	  1)Alice received an invitation from her boss, ___came as a surprise.
	
	  A. it B. that  C. which  D. he
	
	  答案C。此為非限定性從句,不能用 that修飾,而用which。it 和he 都使后句成為句子,兩個獨立的句子不能單以逗號連接。況且選he句意不通。
	
	  2)The weather turned out to be very good, ___ was more than we could expect.
	
	  A. what B. which  C. that  D. it
	
	  答案B。which可代替句子,用于非限定性定語從句,而what不可。That 不能用于非限定性定語從句,it不為連詞,使由逗號連接的兩個句子并在一起在英語語法上行不通。
	
	  3)It rained hard yesterday, ____ prevented me from going to the park..
	
	  A. that  B. which  C. as  D. it
	
	  答案B. as 和which在引導非限制性定語從句時,這兩個關系代詞都指主句所表達的整個意思,且在定語從句中都可以作主語和賓語。但不同之處主要有兩點:
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