Ero Carrera is watching the computer screen in a lab in California as he tracks a new computer virus slowly circling the globe, targeting cell phones. Working from the US office of the Finnish computer 21 firm, Carrera knows this virus could be the start of something big and 22 . He’s one of a couple of hundred “virus hunters” worldwide who guard computers and cell phones from 23 . That’s the job for these unlikely action heroes of the Internet age, where quick and curious minds are more important than strong 24 .
Carrera works with Tzvetan Chaliavski to form the two-man team in California. Like that of other employees in the anti-virus companies in the world, their work is at the battle front of providing 25 from the damaging of computer virus, worms and Trojans. They break down software to discover a new virus and crack its code. Then they 26 and ship out a software update to customers. Roughly 300 new samples of viruses await the pair on a(n) 27 day.
Carrera has created a mathematical formula(公式), to 28 easily the software structure of viruses. With it, he is better able to compare the many variants(变种) and families of malware(恶意软件). To his 29 , Chaliavski, it doesn’t even matter why someone would create a virus. All that 30 is the hunt.
21. A. advertising B. commercial C. printing D. security
22. A. admiring B. exciting C. inviting D. threatening
23. A. attack B. bombing C. competition D. struggle
24. A. heads B. feelings C. muscles D. spirits
25. A. access B. contact C. measures D. protection
26. A. copy B. create C. delete D. download
27. A. average B. original C. previous D. special
28. A. get off B. make out C. pick up D. take in
29. A. assistant B. manager C. partner D. secretary
30. A. ignores B. matters C. overlooks D. rejects
完形填空
21-25 DDACD 26-30 BABCB
【解读】本文主要向读者说明反计算机病毒专家们的工作。在文章中还特别提到一个叫Ero Carrera的，他热爱他所从事的事业，用自己敏捷快速的头脑，每天寻找病毒，破解病毒，向用户提供相关的杀毒软件，从而保护了广大的用户的计算机的安全。
21. D。根据上下文分析知道，Ero Carrera是为一家电脑安全公司服务。
22. D。考查动词词意辨析和语境的理解。从语境知道这里是说病毒对计算机的威胁。
23. A。考查名词词意辨析。Ero Carrera是病毒专家，专门保护用户的计算机和手机免受病毒入侵的。
24. C。考查语境的理解。Ero Carrera这些病毒专家不像一些动作英雄一样有发达的肌肉，对于他们而言，重要的是机敏的头脑。
25. D。从上下文知道，他们是在保护计算机免受电脑病毒侵袭的前沿阵地作战。
26. B。考查动词词意辨析和语境的理解。表示他们不仅要找到计算机病毒，还要找到破解病毒的方法，编写成程序，供用户下载使用。
27. A。考查语境的理解。从上下文知道，Ero Carrera和他的伙伴平均每天都要观察300左右的计算机病毒。
28. B。考查动词词组意思辨析和语境的理解。make out说明, 设法应付, 理解, 辨认出。是说Ero Carrera创造的数学公式可以轻松的辨别出计算机病毒。get off下来, 脱下，动身；pick up
捡起, 获得, 使恢复精神, 加快, 看到；take in接受, ；吸收, 理解, 欺骗。
29. C。根据上下文分析知道，这里是说Ero Carrera的工作伙伴。
30. B。考查语境的理解。从文章整体理解，表示他们所做的是“搜寻”。