学习语法首先要学习句子，因为句子是人类语言的核心，通过对句子的分析理解，可以更好的掌握语法。下面是小编整理的大学英语四级语法词汇练习及解析（4），希望对你的语法学习有所帮助！

　　31. During the races there were two accidents to motor-cyclists including one ______ accident.

　　A. fatal B. killing C. deadly D. deathly

　　32. Business picked up in the stores during December, but ______ again after Christmas.

　　A. dropped out B. dropped on C. dropped over D. dropped off

　　33. His misbehavior and ______ dismissal from the firm was reported in the newspaper.

　　A. improper B. inefficient C. subsequent D. frequent

　　34. Everry citizen has the sacred ______ to defend his country.

　　A. right B. objective C. authority D. obligation

　　35. We need an umbrella on the beach to give us some ______ at midday.

　　A. shed B. shade C. shadow D. dark

　　36. ______ to the Revolutionary War, the United States was an English colony.

　　A. Prior B. Close C. Earlier D. Next

　　37. If you are an electrician, you will know the difference between an alternating and a direct ______.

　　A. conductor B. circuit C. cable D. current

　　38. The company has the ______ right to print Mr. Dare's books.

　　A. virtual B. exclusive C. overall D. flexible

　　39. Digging the foundation is the first ______ of our building project.

　　A. solution B. procession C. phase D. achievement

　　40. The curtains have ______ because of the strong sunlight.

　　A. faded B. dulled C. fainted D. weakened

　　

　　31 题：答案为A。device 器械;engine 发动机;piece 碎片;instrument 仪器。

　　32 题：答案为B。accident 事故;defect 缺陷;damage 破坏;defeat 失败。

　　33 题：答案为C。asleep 睡着的;thoughtless 缺乏考虑的;unconscious 无知觉的;unaware 不知道的。

　　34 题：答案为D。literal 文字上的;literally 逐字地;literature 文学;literary 文字上的。

　　35 题：答案为B。inform 告";conform 顺从;deform 破坏形象;reform 改革。

　　36 题：答案为C。award 授予;apply 运用;appreciate 感激;anticipate 期望。

　　37 题：答案为A。calculation 计算;composition 作文;communication 通讯;vision 视觉。

　　38 题：答案为D。visitor 访问者;worker 工人;adult 成人;inhabitant 居民。

　　39 题：答案为C。basis 基础;charge 控告;on account of 由于;on behalf of 代表。

　　40 题：答案为B。deprive 剥夺;survive 幸存;derive 产生;revive 复活