典题透析
1._____is known to us all,the earth goes around the sun.
A.Which B.As C.What D.It
2. _____is known to us all is that the earth goes aroundthe sun.
A.Which B.As C.What D.It
3. _____is known to us all_____ the earth goes aroundthe sun.
A.Which；that B.As；what C.What；that D.It；that
4. The earth goes around the sun ,_______is known to usall.
A.what B.which C.It D.that
解析：这一组的四个句子意思相同，但考查点不同。例1中定语从句在句首，并以逗号同主句隔开，结合题意可知只能填入“as”，意思是“正如”，故选B；例2实际结构是“主语从句 +be + 表语从句”，故应填what作为主语从句主语，选C。例3句子结构为“It+be +done +that从句”，it为形式主语，其后的that从句才是真正的主语，故选D。例4中定语从句在句末，此空意思是“这一点、这件事”，故选B.此处也可以用as。
5.Is this the lab _____ we visited last year.
A.the one B.that C. the one where D. where
6.Is this lab _____ we visited last year.
A.the one B .that C. the one where D. where
7.Is this lab _____ we discovered the mysterious matterlast year.
A.the one B .that C. the one where D. which
8. Is this the lab _____ we discovered the mysterious mat?ter last year.
A.the one B .that C. the one where D. where
9.Is the lab ______ offered you a job _____ you workedthe first time you arrived here.
A where; that B which; where
C the one ;in which D the one that ; which
解析：这一组的五个句子句式都是一般疑问句，增加了答题难度。首先用还原法：把每一个句子还原成陈述句，然后逐一分析句子成分。还原例5为“This is the lab+定从”，可知该句主谓齐全，缺定语从句关系代词，故选 B。例 6 应为“Thislab is+表语+定从”，句中缺表语和定语从句关系代词 that/which,而that/which在从句中做宾语，可省略，故选A。5、6两题只是一个the的差别，所选代词却截然不同。例7和例6句式相同缺表语和定语从句的关系词，只是例7中定从的关系词在句中充当地点副词不能省略，故选C。例8缺定语从句关系副词where,因此选D。例9难度较大，分析时从整体着手还原：
The lab( _____offered you a job )is（____ you worked the firsttime you arrived here.）前一括号中为The lab的定语从句，该从句缺主语，可用关系代词which/that；后一括号中为表语从句，由句意可知缺表地点的引导词where,故选B。
10.It is one o’clock _____ the monster opened its eyes.
A. when B. that C.which D.what
11.It is at one o’clock _____ the monster opened its eyes.
A. when B. that C.which D.what
解析：这一组的两道题仅一词之差，例11多了介词at,实际上是两个不同的句型，例10的句型是：It + be + time + when 定语从句。例11是强调句型：It + be + 介词 + time + that + 其它成分 。因此例10选A，例11选B。
12.It was the house _____ I did my famous experiment.
A that B which C where D what
13.It was in the house _____ I did my famous experiment.
A that B which C where D what
14. It was in the house _____ was well-equipped _____ Idid my famous experiment.
A that;where B what;that C as; where D that;that
解析：例12和例13也是一词之差，但句型迥异。例12句型：It + be + place + where 定语从句。例13是强调句型：It +be + 介词 + place + that + 其它。故例12选C，例13选A。例14是例12和例13的综合句型，即强调句型中的被强调部分带有一个定语从句：It + be + 被强调部分 + 定语从句+ that + 其它，故选D。
15.Peter’s mother kept telling him that he should give upsmoking ,but ______ didn’t help.
A he B which C she D it
16. Peter’s mother kept telling him that he should giveup smoking , ______ didn’t help.
A he B which C she D it
解析：这两道题是同义句，例15是并列句，but后缺主语，要用主格代词it,类似的并列连词还有and 、or 、so。故选D。
例16中前后部分由“，”连接，由句意判断需填非限制性定语从句的关系代词，意思为“这一点，这件事”，故选B。
17.It’s quite different from ______ I read last month.
A that B which C the one D the one what
18. It’s quite different from ______ I read last month.
A that B which C what D the one what
解析:这两题相同但选项不同，都缺read的宾语。例17主句中的from后缺宾语，而该宾语带有定语从句，同时又在定从中做 read 的宾语，其后的关系代词 that 可省。即：the one(that) I read last month,故只有C合适。例18用同义转换“不定代词（指物）+that=what”，将例17中的the one+(that)用what替代故选C。
19.—When did you find the job ?
—It was in 1990 _____ I graduated from senior highschool.
A which B that C when D what
20.—Where did you won the prize ?
—It was in the factory _____ my father used to work.
A where B that C which D what
解析：这两道题考查定语从句和强调句型的综合运用及强调句型的省略现象。例 19 的句型是 It + be +介词+时间+when 定语从句+ that +其它（本题是that I found the job）,而出题者恰恰省去了句型中的划线部分，故选C。考生容易误选B。例20的句型是It + be +介词+地点+ where 定语从句+ that+其它（本题是that I won the prize）,而出题者恰恰省去了句型中的划线部分，故选A。考生容易误选B。
21.The day _____ we were looking forward _____ at last.
A that; to coming B /; to cameC which; to come D /; to come
22.We stopped and looked forward _____ what was happening.
A to see B to seeing C to saw D seeing
23.We are looking to ______ you soon.
A to see B to seeing C to saw D seeing
解析：这三题形似而神异，例21第一空缺定语从句关系代词that/which（在句中作宾语，可省）。第二空设空巧妙，既缺固定搭配“期盼”look forward to 中的to,又缺主句的谓语动词came。故选B,而考生容易误选A。例22中的look forward 意思是“向前看”并无“期盼”之意，缺目的状语应填不定式to dosth,故选A。而考生受到定势思维的影响容易误选B。例23则为短语look forward to +v-ing的常规用法，选B.
