4、以下关于防火墙的说法，不正确的是______。A.防火墙采用的是一种隔离技术B.防火墙的主要工作原理是对数据包及来源进行检查，阻断被拒绝的数据传输C.防火墙的主要功能是查杀病毒D.防火墙虽然能够提高网络的安全性，但不能保证网络绝对安全

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4、以下关于防火墙的说法，不正确的是______。
A.防火墙采用的是一种隔离技术
B.防火墙的主要工作原理是对数据包及来源进行检查，阻断被拒绝的数据传输
C.防火墙的主要功能是查杀病毒
D.防火墙虽然能够提高网络的安全性，但不能保证网络绝对安全

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题型描述: 阅读理解Community service is an important component of education here at our university. We encourage all students to volunteer for at least one community activity before they graduate. A new community program called "One On One" helps elementary students whoˊve fallen be?hind. Your education majors might be especially interested in it because it offers the opportu?nity to do some teaching, that is, tutoring in math and English.Youˊd have to volunteer two hours a week for one semester. You can choose to help a child with math, English, or both. Half-hour lessons are fine, so you could do a half hour of each subject two days a week.Professor Dodge will act as a mentor to the tutors—heˊll be available to help you with lesson plans or to offer suggestions for activities. He has office hours every Tuesday and Thursday afternoon. You can sign up for the program with him and begin the tutoring next week.Iˊm sure youˊll enjoy this community service…and youˊll gain valuable experience at the same time. It looks good on your resume, too, showing that youˊve had experience with children and that you care about your community. If youˊd like to sign up, or if you have any questions, stop by Professor Dodgeˊs office this week.1、 What is the purpose of the talk? A. To recruit elementary school teachers for a special program. B. To interest students in a new community program. C. To explain a new requirement for graduation. D. To discuss the problems of elementary school students. 2、 What is the purpose of the program that the speaker describes? A. To help education majors prepare for final exams. B. To offer tutorials to elementary school students. C. To find jobs for graduating students. D. To provide funding for a community service project. 3、 What does Professor Dodge do? A. He advises students to participate in certain program. B. He observes elementary school students in the classroom. C. He helps students prepare their resumes. D. He teaches part-time in an elementary school. 4、 What should students who are interested in the tutorials do? A. Submit a resume to the dean. B. Sign up for a special class. C. Talk to Professor Dodge. D. Contact the elementary school. 5、 Whom do you think the speaker addresses? A. Graduated students. B. Residents. C. Students. D. Faculty.统考英语B

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