2009年大学英语四级语法词汇（19）

　　1.The board of the company has decided to ________ its operations to include all aspects of the clothing business.
　　A) multiply
　　B) lengthen
　　C) expand
　　D) stretch
　　2.His business was very successful, but it was at the ________ of his family life.
　　A) consumption
　　B) credit
　　C) exhaustion
　　D) expense
　　3.First published in 1927, the charts remain an ________ source for researchers.
　　A) identical
　　B) indispensable
　　C) intelligent
　　D) inevitable
　　4.Joe is not good at sports, but when it ________ mathematics, he is the best in the class.
　　A) comes to
　　B) comes up to
　　C) comes on to
　　D) comes around to
　　5.Doctors warned against chewing tobacco as a ________ for smoking.
　　A) relief
　　B) revival
　　C) substitute
　　D) succession
　　6.When carbon is added to iron in proper ________ the result is steel.
　　A) rates
　　B) thicknesses
　　C) proportions
　　D) densities
　　7.You should try to ________ your ambition and be more realistic.
　　A) reserve
　　B) restrain
　　C) retain
　　D) replace
　　8.Nancy is only a sort of ________ of her husband’s opinion and has no ideas of her own.
　　A) sample
　　B) reproduction
　　C) shadow
　　D) echo
　　9.Now that spring is here, you can ________ these fur coats till you need them again next winter.
　　A) put over
　　B) put away
　　C) put off
　　D) put down
　　10.There is a ________ of impatience in the tone of his voice.
　　A) hint
　　B) notion
　　C) dot
　　D) phrase