42. Niagara Falls is a great tourist _B_, drawing millions of visitors every year.
A attention B attraction C appointment D arrangement
tourist attraction 旅游胜地; attention n. 注意力; appointment n. 委任的职位，约会;
date n. 日期，约会，枣;表示约会时指的是异性之间的私人约会。 arrangement n. 布置，安排
blind date 两人第一次见面的约会。 appointment 指公事性质的，比较正式的约会。
43. I don't mind _B_ the decision as long as it is not too late.
A you to delay making B your delaying making
C your delaying to make D you delay to make
mind 后要加动名词; delay v. 耽搁，延误(后面也要加动名词)
45. Corn originated in the New World and thus was not known in Europe until Columbus found it _A_ in Cuba.
A being cultivated B been cultivated C having cultivated D cultivating
46. The sale usually takes place outside the house, with the audience _C_ on benches, chairs or boxes.
A having seated B seating C seated D having been seated
注意：seat是及物动词，及物动词用主动形式，后面要直接加宾语。
Be seated please. 请坐。 英语中只有及物动词才有被动语态。
47. This kind of glasses manufactured by experienced craftsmen _B_ comfortably.
A is worn B wears C wearing D are worn
当wear表穿戴时，而句子的主语是被穿戴的东西时，wear是不及物动词，没有被动语态。
65. The coming of the railways in the 1830s _A_ our society and economic life.
A transformed B transported C transferred D transmitted
字根trans在四级中着重考的含义是“从一个地方到另一个地方”。
transform 改革，变革，改变; transport 运输; transfer 转移，移动;
transmit 传送，播送;疾病的传染，传播; transplant 移植。
48. Some diseases are _D_ by certain water animals.
A transplanted B transformed C transported D transmitted
49. Wouldn't you rather your child _B_ to bed early?
A go B went C would go D goes
would rather的两种用法：1 would rather + 动词原形;
2 would rather + 句子(句子谓语动词用一般过去时体现虚拟语气)。
50. Although Anne is happy with her success she wonders _B_ will happen to her private life. [wonder后面要加疑问词]
A that B what C it D this
51. The words of his old teacher left a _C_ impression on his mind. He is still influenced by them. [lasting adj. 持久的，永久的; liberal adj. 开明的，心胸开阔的]
A long B lively C lasting D liberal
52. Mike's uncle insists _D_ in this hotel.
A staying not B not to stay C that he would not stay D that he not stay
insist的两种用法：1 insist on … 坚持，坚决要求;
2 insist + that引导的从句(从句谓语动词为[should] + 动词原形)
53. We agree to accept _D_ they thought was the best tourist guide.
A whatever B whomever C whichever D whoever
they thought是插入语，可以不看; tourist guide 导游。
56. Although many people view conflict as bad, conflict is sometimes useful _C_ it forces people to test relative merits of their attitudes and behaviors.
A by which B to which C in that D so that
句子的意思是：如果冲突以后能回家反省一下自己是好事情。
in that 因为; conflict n. 冲突; relative merits 相比较而言的优点; so that 以至于。
相关链接：新东方：四十天突破英语四级词汇笔记(第3课)
新东方：大学英语四六级单词记忆方法大全
背诵英语四六级大纲单词应注意的三大原则
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