下面小编跟大家一起了解考研英语知识运用练习分享，希望对大家的学习有所帮助。
1.Estimates ___ anywhere from 600,000 to 3 million . Although the fugure may vary , analysts do agree on another matter : that the number of the homeless is increasing , one of the federal government's studies predicts that the number of the homeless will reach nearly 19 million by the end of this decade.
A. cover
B. change
C. range
D. differ
【原句译文】（人们）估计人数在60万到300万不等，尽管数字不尽相同，分析家们却在另一个问题上达成了一致：无家可归者得数目在增长，联邦得一项研究预测，无家可归者得人数在这个10年结束之前将会飙升至近1900万。From...to…意为“在······范围之内变化”。故本题选【C】。【A】cover虽然有“包含”之意，但cover表示“覆盖”的面积，大小，不表示范围，故排除。【B】change意为“改变，变化”，与句意不符，故排除。【D】differ主要强调不同，而本句并未强调不同，只是强调范围，故排除。
2.Making friends is extremely important to tennagers ,and many shy students need the admission of some of organization with a supportive adult ___ visible in the background .
A. particularly
B. barely
C.definitely
D.rarely
【原句译文】交朋友对于年轻人极其重要，并且许多腼腆的学生需要加入某种团体以获得安全感，在幕后几乎没有成年人的支持。【A】praticularly意为“特别，尤其；详细地，细致地”；【B】barely相当于“almost not ; "hardly”,意为：几乎没有”；【C】definitely 意为“明确地，肯定地，限定地”；【D】rarely 相当于：“not often”,意为“很少，难得”，事频度副词，只能修饰动词或具有动作意味的形容词，如early，happy，angry等，不修饰后缀-ble的表动态的形容词。根据句意，既然事在幕后，就不会在前台露出，所以应该选barely一词，正确答案魏选项【B】

3.The key to the industrialization of space is the U.S. space shuttle . With it, astronauts will a workhouse vehicle ___ of flying into space and returning many times . Powered by reusable rockets that can lift a load of 65,000 pounds , the shuttle will carry devices for scientific inquiry as well as a variety of military hardware .
A. capable
B. conditions
C. presentations
D. circumstances
【原句译文】美国航天飞机是空间工业化的关键。有了航天飞机,宇航员就有了实验室飞行器,可以实现地面和太空之间的多次往返。航天飞机由可重复使用的火箭提供动力,该火箭可将重达六万五千磅的重物送上太空。航天飞机除了运送多种军用设备外,也要运送科学考察仪器。【A】capable有能力的,能够……的;【B】suitable适合的,适宜的;【C】efcient效率高的,有能力的;【D】fit (质量、素质或技能)适合的,合格的。
从语法上看,只有【A】 capable能够形成capable of doing...的结构。如: Our noses are capable of detecting human smells even when these are diluted to far below onepart in one million.即使把人类气味的浓度稀释到不及原来的百万分之一,我们的鼻子仍然能够察觉到它的存在。它填入文中,形容词短语 capable of.做后置定语,修饰名词 a work house vehicle,表示“能够……的实验室飞行器"。suitable和fit一般与for连用,如: This program is not suitable for child这个节目儿童不宜。It was a meal fit for a king.这饭菜够得上御膳。efficient通常跟at, 如: He's efficient at his job.他胜任工作。故正确答案为选项【A】。