Was ist richtig W hlen Sie aus! Alle fünf Minuten speichert mein Computer automatisch mei

make in computer and communications equipment（ 10 ）the concept

Who was interested in computers after they came into existence?

A．Students.

B．Mathematicians.

C．People from many sciences.

D．All the people.

Who was interested in computers after they came into existence?

A．Students.

B．Mathematicians.

C．People from many sciences.

D．All the people.

从供选择的答案中选出应填入下面一段英文中______内的正确答案。

  In computers, encoding is the process of putting a sequence of(1)characters (letters, numbers, punctuation, and certain symbols) into a specialized(2)format for efficient transmission or storage.(3)Decoding is the opposite process—the conversion of an encoded format back into the original(4)sequence of characters. Encoding and decoding are used in data communications, networking, and storage. The term is especially(5)applicable to radio (wireless) communications systems.

  The terms encoding and decoding are often used in reference to the(6)processes of analog-to-digital conversion and digital-to-analog conversion. In this sense, these(7)terms can apply to any form of data, including text, images, audio, video,(8)multimedia, computer programs, or signals in sensors, telernetry, and control systems. Encoding should not be confused with encryption, a process in which data is deliberately altered so as to(9)concealits content. Encryption can be done without changing the particular(10)code that the content is in, and encoding can be done without deliberately concealing the content.

  供选择的答案：

  1．terms       2．Decoding  3．processes   4．format      5．code

  6．multimedia   7．applicable  8．conceal    9．equence     10．characters

Virtually every company with a computer is vulnerable to computer abuse, crime and accident. Security of the computer and of the information and assets contained within it are therefore of paramount importance to management. Skilled computer criminals can break into a computer system far more easily than an armed robber can gain access to a bank vault, and usually with far less risk of apprehension and punishment. A slight change in a complex program can bring about the misappropriation of thousands of pounds. Accidental erasure of crucial data can paralyze company's operations. Anyone familiar with the necessary procedure can gain access to information stored in the computer, no matter how confidential, and utilize it for his own purposes.

Although the actual extent of computer crime is difficult to measure, most experts agree that it is one of the fastest growing areas of illegal activity. The principal reason for both the growth and the lack of accurate measurement is the difficulty in detecting a well-executed theft. Losses per incident thus tend to be higher than in other types of theft. Once the Computer criminal has compromised the system, it is just as easy to steal a great sum as it is to steal a little, and to continue stealing long after the initial theft. Indeed, the computer criminal may find it more difficult to stop his illicit activity than to start it.

Computer criminals are, for the most part, well-educated and highly intelligent. The fact that computer criminals do not fit criminal stereotypes helps them to obtain the positions they require to carry out crimes. Being intelligent, they have fertile imaginations, and the variety of ways in which they use equipment to their advantages is constantly being extended. In addition to direct theft of funds, the theft of data for corporate espionage or extortion is becoming widespread, and can obviously have a substantial effect on a company's finances. Another lucrative scheme, often difficult to detect, involves accumulating fractions of pence from individual payroll accounts, with electronic transfer of the accumulated amount to the criminal's payroll. Employers are hardly concerned with pence, much less fractions of pence. In addition, undoubtedly, the company's payroll is unaffected. But the cumulative value of fractions of pence per employee in a company with a substantial payroll can add up to a useful gain.

Guarding against computer abuse—whether deliberate or accidental—involves attention to the protection of hardware from physical damage as well as protection of software and data. Computer must be isolated from other company facilities, and unauthorized person should never be admitted to the computer area. Event though some risks are reduced through this measure, most damage to software, accidental and intentional, is caused by those whose jobs require at least some access to the computer. The writer of the program is often the one responsible for its misuse. Programs devised exclusively for a particular company are therefore far more valuable to abuse and accident than standard software packages produced by external suppliers.

Skilled computer criminals can break into a computer system______.

A．quite easily

B．without any risk

C．more easily than an armed robber can gain access to a bank vault and with far less risk

D．without being punished

请根据以下内容回答下列各题 Job Advertisement Our company is Tianhe Automobile Company and we are seeking for a mature, competent secretary whose main responsibility is to report to the general manager. The applicant should be skillful in organization work, shorthand and data processing, good at computer and fluent in English. Besides, the applicants should have at least two-year working experience and can work well with different colleagues. The company will offer excellent opportunities for personal development, a wide range of benefits and good career development opportunities. The salary will be in accord with qualifications, beginning at a mmimum of $ 2,500 per month. The opportunity for this post wilt be equal for both women and men. Interviews will be held on Monday to Friday, from June 14th to 18th. Resumes together with a photo are requested to mail to: Human resource department Tianhe Automobile Company PO Box 650 Windsor. Ontario M60358 What' s the name of the company? ____________________ Company

听力原文：F：Mr．Hunt，what do you think is the major cause of stress?

M：Stress is generally driven by the feeling of being out of control of a situation and the feeling of a situation controlling you．It's the feeling of uncertainty，being out of control，that causes the stress．

F：So why exactly does your job have a reputation for being stressful?

M：Well，trading financial markets combines both of the above-mentioned situations．Your financial position can change in a matter of seconds，and what changes that position is generally a situation beyond your control as a trader．It is possible to lose in seconds what may have taken you a year to make．I think that's why many people say trader is a stressful job．

F：How do you relax in the evening?

M：In the evening，I very rarely do anything related to my work，so it's easy to escape‘the markets’．I generally go to the gym or go for a run．especially if I've had a bad day．I always cook a meal rather than have a takeaway，to do something my brain would regard as creative．I find it quite helpful!More often than not I will watch some TV before going to bed，as I find it helps me to wind down，to relax．If I go to bed straight after work，it's harder to sleep．

F：What do you do to beat stress at the weekend?

M：I like to be busy and active．I like the feeling of having achieved something over the weekend and it being productive．I definitely don't like wasting days．Most weekends are a mixture of household jobs like fixing something，shopping or gardening and socialising with friends．I also go to watch football games at least once a week．

F：Do you think what you do to relax is an effective way to beat stress?

M：I don't think there is a specific rule about how to beat stress．I generally find that what I do is effective for me．

F：Would you consider changing your job because of the high stress factor?

M：I have considered leaving my job because of those stress related factors．However，I think that anelement of stress is a good thing and if it is used the right way，it can actually be a positive thing．It can lead to a change in direction，success，and even encourage you to do something new．

F：What do you enjoy about the stressful aspects of your job?

M：Having said all that，I do actually enjoy an element of uncertainty．It requires you to keep alert all the time!I enjoy a mental challenge．Trading triggers a very wide range of emotions second by second． How you deal with and manage those emotions dictates short，medium and long term trading performance and success．

F：Do you become less stressed the longer you do the job or does it become more stressful as you go on?

M：I would say it remains constant．The source and the nature of the stress changes and how you deal with it changes due to experience，but，but，it's always there．

Questions 23-30

•You will hear an interview in which Mr．Hunt，a financial trader，talks about the stresses of his job and how he beats it。

•For each question 23-30，mark one letter(A，B，or C)for the correct answer．

•You will hear the recording twice．

According to Mr．Hunt，what is the major cause of stress?

A．Not being able to control the market．

B．Failure to balance work and relaxation．

C．The feeling of uncertainty and losing grip．