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其它選項(xiàng)結(jié)構(gòu)不對。46. B. through which引導(dǎo)定語從句,through which即through the hole,在定語從句中作狀語。本句話主句的主語是The number of指“…..的數(shù)目”,是單數(shù)概念。29. D. for which在定語從句中作原因狀語,可用why 來替代.30. B. which I have looked after 構(gòu)成一個(gè)非限制性定語從句.31. A. The reason why… was that….已成為一種固定句型,這一句中的why和that不能隨意換位,也不能將that改成because,盡管that這個(gè)詞在譯文中可能有 “因?yàn)椤钡暮x。從句可放在主句后,也可置于主句前。about是介詞,其后要用which作賓語,不能用that。7. A. 解析見第3題。4. C. when是關(guān)系副詞,表示時(shí)間,在定語從句中作時(shí)間狀語。 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 參考答案及解析1. A. which用作關(guān)系代詞,在定語從句中作主語。 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。 which 43. The number of the people who _______ cars _______ increasing.A. owns。 that 42. I shall never forget those years _______ I lived on the farm withthe farmers, _______ has a great effect on my life.A. when。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. whic