【正文】 the one you love. A. which B. that C. where D. when2. As a teacher, I seldom give my students so difficult a problem ______ they cannot work out. A. that B. if C. in order that D. as3.—Are you going somewhere during the winter vacation? —Yes, I39。ve found a nice beach ______ I can enjoy swimming even in February. A. that B. when C. where D. which4. In the end, it was Becky _____ he turned for a gentle word and a smile. A. on whom B. in whom C. to whom D. for whom5. In Western culture, 21 was the age ______ young people traditionally received a key to their parents’ door, as a symbol of entering adulthood. A. in which B. on which C. at which D. to which6. The knee is the joint ______ the high bone meets the large bone of the lower leg. A. when B. where C. which D. that7. Human facial expressions differ from those of animals in the degree ______ they can be controlled on purpose. A. with which B. to which C. of which D. for which8. I don’t like the way ______ he often uses to speak to me. A. in which B. how C. which D. what9. The officials have indicated that a new building will be built in 2010 _______ can house another l, 000 students. A. when B. what C. which D. where10.“Simpler”books are the foundation ______ students build a lifelong habit of reading and further the actual skill of reading for longer and stronger periods of time. A. which B. upon which C. for which D. in which七．非限定性定語從句非限制性定語從句只是對主句內(nèi)容，或先行詞的補(bǔ)充、解釋或附加說明。主句與先行詞或從句之間一般用逗號分開，常常單獨(dú)翻譯。沒有它，主句意思仍然完整。引導(dǎo)非限制性定語從句的關(guān)系代詞有as，which，who， whom，whose等，作定語從句的主語、賓語、表語及定語。關(guān)系副詞有when，where等，作定語從句的狀語。關(guān)系代詞和關(guān)系副詞在定語從句中一般不能省。 1. which引導(dǎo)的非限定性定語從句來說明前面整個(gè)句子的情況或主句的某一部分，that不能用于引導(dǎo)非限制性定語從句 　　例如: Her house,which was built a hundred years ago,stood still in the earthquake.(那座房子在地震中依然聳立，它是一百多年前建造的。) 　　2. 有時(shí)as也可用作關(guān)系代詞 　　3. 在非限定性定語從句中，用who, whom代表人，用which代表事物。 　　，其后的定語從句通常是非限制性的。 例如　Charles Smith, who was my former teacher, retired last year. 查理史密斯去年退休了，他曾經(jīng)是我的老師。 My house, which I bought last year, has got a lovely garden.　我去年買的的那幢房子帶著個(gè)漂亮的花園。　, 對其進(jìn)行修飾, 這時(shí)從句謂語動詞要用第三人稱單數(shù)， 　　例如：He seems not to have grasped what I meant, which greatly upsets me. 他似乎沒抓住我的意思，這使我心煩?！?．a(chǎn)s引導(dǎo)非限制性定語從句時(shí)，可以代主句的全部或部分內(nèi)容。常表說話人關(guān)于說話的依據(jù)、態(tài)度、評論、看法等。有“正如、像”等意思。定語從句可以置主句句首、句中或句末。as后常接expect，know，report，say，see等動詞的主、被動語態(tài)句。 eg．Mike，as we expected，attended the meeting．像我們所期望的那樣，邁克參加了會議。 　　eg．He wasn39。t unconsicious，as could be judged from his eyes．他并未失去知覺，這從他的眼神可以判斷出來。 　　。 I．指代主句的全部或部分內(nèi)容時(shí)，常表事實(shí)、狀態(tài)、起因等，有“這就使得、這一點(diǎn)”等意思，常置主句末。主句與定語從句用逗號分開。 II．指代先行詞有多種情況。定語從句置先行詞后面。(1)在“n．／pron．／num．．．．＋prep．＋ which”，“prep．＋which”定語從句里。 　　1）They talked about a movie，the name of which I39。ve never forgotten．他們談?wù)撨^一部電影，我決不會忘記片名。 　　2）China has thousands of islands，the largest of which is Taiwan．中國有數(shù)千個(gè)島嶼，其中最大的是臺灣島。 　　3）Chaplin went to the states in 1910，by which time he had learnt to dance and act in edies．卓別林1910年去了美國，那時(shí)他已學(xué)會跳舞和演喜劇了。 (2)表唯一性，或者就是指代先行詞的事物時(shí)。 The dam，which is the biggest in the world，is 3，830 metres long．大壩長3，830米，是世界上最大的壩。(3)先行詞是獨(dú)一無二的事物時(shí)。The moon，which doesn39。t give out light itself，is only a satellite of the earth．月球本身不發(fā)光，它只是地球的一個(gè)衛(wèi)星。(4)先行詞表示類屬的事物時(shí)。Football，which is a very interesting game，is played all over the world．足球是一項(xiàng)非常有趣的運(yùn)動，全世界都踢足球.(5)先行詞是專有名詞時(shí)。 　　1）Three of the biggest manmade projects in the world are the Great Wall of China，the Pyramids of Egypt and the Aswan High Dam， which is also in Egypt．世界上最大的三項(xiàng)人造工程是中國的長城，埃及的金字塔和阿斯旺高壩，它也在埃及。 　　2）The Nile，which used to flood every year，now runs more regularly below the dam．尼羅河年年漲洪水，現(xiàn)在比較正常地在大壩下面流過了。(6)先行詞是表人的職業(yè)、品質(zhì)、身份等名詞，作定語從句的表語時(shí)。主句和定語從句之間含有對比的意思。Mike39。s brother is a policeman，which he isn39。t．邁克的哥哥是警察，他可不是。(7)先行詞是形容詞作定語從句的表語時(shí)。主句和定語從句含有對比的意思。 Li Ling is very clever，which Li Long isn39。t．李玲很聰明，李瓏可不是。 (8)先行詞是集體名詞表整體意思時(shí)。My family，which has 35 people，is a large one．我家有35口人，是一個(gè)大家庭。(9)先行詞是國家名詞表地域概念時(shí)。Last year he went to Egypt，which is in Africa．他去年去了埃及，埃及在非洲。 　　三、as，which是指代主句內(nèi)容的非限制性定語從句時(shí)，表依據(jù)、評論與表事實(shí)、狀態(tài)等沒有多大差別，又在主句末時(shí)，有時(shí)可以通用。 　　1．He is quite pleased，as ／which can be seen from his face．他非常高興，從他的表情可以看出來。 　　2．You always work hard，as ／which everyone knows．大家都知道，你一向勤奮學(xué)習(xí)。 　　但是，上面兩句把定語從句置主句句首時(shí)，就只能用as。 　　3．This elephant is like a snake，as anybody can see．像任何人都能看見那樣，這頭象像條蛇。 　　4．Bamboo is hollow，which makes