我们都知道语法词汇的重要性，这就需要同学们平时多加训练，环球博海小编特整理了2013年英语四级语法词汇强化习题(5) ，希望能够帮助到大家!

　　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