形容词与副词专练(5)

  21. I doubt if it is ______ for you to read that book.?

  A) worth C) worthwhile?

  B) worthy D) valuable?

  22. Missiles are now more ______ than ever. It can hit a target over a long distance.?

  A) exact C) correct?

  B) accurate D) definite?

  23. The ______ amount of money was not known though they knew that it was large.?

  A) actual C) genuine?

  B) real D) apparent?

  24. Scientists are searching for the oldest tree ______ from which they can learn a great deal about many matters.?

  A) live C) living?

  B) lively D) alive?

  25. The city government plans to complete its study of the local economy in five years. This is ______ time to do a thorough and complete study.?

  A) adequate C) sufficient?

  B) enough D) ample?

  [答案与精解]

  21. C ?

  [注释]我怀疑那本书是否值得你去读。worth,worthy,worthwhile都含有“值得的”意思,其基本句式是:sth.be worth sth.或sth.be worth doing/be worthy of sth./be worthwhile to do sth.或doing sth.?

  22. B ?

  [注释]现在的导弹非常精确,可以准确击中远距离的目标。 accurate准确无误的,其名词accuracy意为“精确度”;A)exact意为“一模一样的,正好的”;C)correct正确的(仅区别对与错);D)definite明确的(旨在区别确定与不确定)。?

  23. A ?

  [注释]他们只知道那笔钱数额巨大,但并不清楚具体有多少。actual“实际的,真实的”,指实际存在着的事实,而非理论上存在或想像中的事情。如:the actual amount确切数目;B)real“真的,真正的”,指事物的外表符合其实际内容,而非伪造的;C)genuine“真正的”,强调正宗、地道而非冒牌的; D)apparent表面上的,显然的。?

  24. D ?

  [注释]科学家们正在寻找现存最古老的树,因为他们能从中了解许多东西。alive意为“活着的”,是表语形容词。作定语时置于被修饰词之后。A)live[1aiv],作形容词,只作前置定语,表示 “活的,现存的,现场的”。如:live broadcast现场直播;B)lively意为“活泼的,有生气的”;C) living意为“活着的”,多用作定语。?

  25. D ?

  [注释]市政府计划在5年内完成对本地经济的研究,这段时间足够进行深入而全面的研究。D)ample,A)adequate,B)enough和C)sufficient都有“足够”的意思。

  ①ample“充分的,富裕的”,意指绰绰有余。如:There is ample time,so you don’t have to hurry.时间很充裕,所以你不必这么匆匆忙忙的。②当只指数量时,用sufficient或enough较好,而不用adequate,因为 adequate还有“good enough适当的,足够好”的意思。试比较:The prisoners received adequate food(=good enough or enough in quantity).The prisoners received sufficient/enough food(=enough quantity).③enough“足够的”,用以修饰名词,可在名词之前或之后。它还可作副词:The room is big enough to hold a hundred people.这间房屋大得足以容纳一百人。④sufficient(足够的)和enough作形容词时意思一样,但比enough正式且不可用作副词。 Do you have sufficient books for the children? 你发给孩子们的书够了吗?
英语四级英语《分类突破词汇》(12): http://insuns.com/article/15874-1.html