定语从句是中学英语语法的重点内容，在高考中也非常重要。
在语法填空题当中，一般会有一个题直接涉及到定语从句关系词的选择。
在阅读和听力中，如果能准确理解定语从句，对于阅读速度和听力理解都有非常大的帮助。
在书面表达中如果能够正确使用定语从句，会被认为是good sentences，对于写作提分也有很大帮助。
如果能很好掌握定语从句的用法，对于高考英语成绩的提高有很大帮助，要远远超过一个语法填空题的分数。
希望能帮到你！
从句题目
(短语),换成宾语从句你就能容易理解,但一变成主语从句/表语从句/同位语从句, I dont know where you ,你就把where翻译成"....的地方":I dont know what you "...的东西/事情": Where you live is unknown to you said made me : The key is what you have ?That is where the best job :名词性从句是个名词,是由引导词 ,就用that;是"是否"之意,就用if/whether;而为特殊疑问词时,它在从句中必须充当一定的成分, best jobs are的确在are后缺少where这个疑问副词做表语啊(where=介词 某地)!
最后再举几个例子: This is what I want to know.
The problem is when you will be free.
The key is how you can finish the work.
The answer is that you are fooled.
The trouble is whether you can solve the problem.
The city is where you can find good jobs.
定语从句专练50题及答案
reason ______he didnt come was ______he was ill.
A. why; that ;why C. for that;that which;what
is working hard, ______will make him pass the final exam.
which
is not the way ______I do it.
A./ which which
have two grammars, ______are of great use.
A. all of which B. either of which C. both of that D. both of which
want to use the same tools _______used in your factory a few days ago.
A. as was B. which was C. as were D. which
neigh bours used to give me a hand in time of trouble, _______ was very kind of them.
A. who B. which C. that D. it
is the magazine _______ I copied the paragraph.
A. that B. which C. from that D. from which
is not such a man _______ would leave his work half done.
A. that B. which C. who D. as
39. You can depend on whatever promise _______ he makes.
A. / B. why C. when D. whose
40. Smoking, _______ is a bad habit, is, however, popular.
A. that B. which C. it D. though
41. --- Did you ask the guard _______ happened?
--- Yes, he told me all _______ he knew.
A. what; that B. what; what C. which; which D. that; that
42. I shall never forget those years _______ I lived on the farm with
the farmers, _______ has a great effect on my life.
A. when; who B. that; which C. which; that D. when; which
43. The number of the people who _______ cars _______ increasing.
A. owns; are B. owns; is C. own; is D. own; are
44. During the days ________, he worked as a servant at the Browns.
A. followed B. following C. to follow D. that followed
45. Is oxygen the only gas _______ helps fire burn?
A. that B. / C. which D. it
46. The clever boy made a hole in the wall, _______ he could see _____ was going on inside house.
A. which; what B. through which; what C. through that; what D. what; that
47. Is _______ some German friends visited last week?
A. this school B. this the school C. this school one D. this school where
48. John got beaten in the game, _______ had been expected.
A. as B. that C. what D. who
49. I have bought two ballpens, _______ writes well.
A. none of them B. neither of them C. neither of which D. none of which
50. All that can be eaten _______ eaten up.
A. are being B. has been C. had been D. have been 参考答案及解析
1. A. which用作关系代词，在定语从句中作主语。
2．C. "和谁讲话”要说speak to sb. 本题全句应为Do you know the man whom I spoke to.。whom是关系代词，作介词to的宾语，可以省略。
3. D. where是关系副词，表示地点，在定语从句中作地点状语。
4. C. when是关系副词，表示时间，在定语从句中作时间状语。
5．A. which是关系代词，在从句中作forget的宾语。其他几个答案都不能作宾语。
6．C. 解析同第5题。
7. A. 解析见第3题。
8. A. 本句话的先行词应该是films,关系代词that是负数概念，其谓语动词应用复述的被动语态have been shown。如果句中的one前面使用了定冠词the，则the one应该视为先行词。
9. A. “谈到某事物”应说talk about sth.。about是介词，其后要用which作宾语，不能用that。
10. A. with which是"介词 关系代词"结构,"用"的意思,介词之后只能用which,不能用that. with which在定语从句中作状语,即he is writing with a pen.
11. C. in front of which 即in front of a farmhouse. In front of which在从句中作状语.
12. D. with whom放在从句中即为:my father works with the engineer.
13. D. whose引导定语从句,在从句中作主语family的定语.
14. A. that引导定语从句,因为先行词是all,所以只能选用that引导.
15. D. the same……..as是固定用法, as引导定语从句时,可以作主语,,as作从句的主语.
16. D. such……… as是固定用法,as引导定语从句时,可以作主语,,as作表语.
17. B. as作关系代词可以单独用来引导非限制性定语从句。这时as所指代的不是主句中某个名词，而往往指代整个主句的含义。as在从句中可以作主语、宾语。从句可放在主句后，也可置于主句前。在本句中,as作宾语.
18. B. Li Ming enjoyed it very much是主句,with whom I went to the whom放在从句中为:I went to the concert with Li Ming.
19. C. as引导定语从句时通常构成such…as或the same…as固定搭配，其中such和same修饰其后的名词，as为关系代词，指代其前的名词引导定语从句。 as在从句中可以作主语、表语或宾语。Such修饰单数名词时,要用such a……..,本题中such books, such直接修饰复数名词.
20. B. ,又表示物的名词时,其关系代词要用that.
