Resource sharing is an important function of computer network,including hardware resource,software r

urpose of data communication and resource sharing。

A．Computer network

B．Computer device

C．Computer processor

D．Computer storage

A.资源共享 ； resource sharing;#B.分布式信息处理； distributed information processing;#C.提高计算机系统可靠性与可用性； improving the reliability and availability of computer systems;#D.网络通信； network communications;

A. to prevent the creation of an excessive number of scheduler job classes

B. to allow the Automated Maintenance Tasks to use system resources without any restriction

C. to allow resource sharing only among the Automated Maintenance Tasks in the maintenance window

D. to prevent the Automated Maintenance Tasks from consuming excessive amounts of system resources

A.资源共享 ； resource sharing;#B.分布式信息处理； distributed information processing;#C.提高计算机系统可靠性与可用性； improving the reliability and availability of computer systems;#D.网络通信； network communications;

A lot of kids are getting online these days—sharing data, talking about social issues, meeting adults as well as kids, and learning about other cultures. There seems to be everything on the network. Just like any other form. of media, the quality of this massive collection of information is

unequal, and there is good information as well as rubbish. Networks hold great promise: however,

it's also home to people who mean to hurt others or use their technical knowledge to steal from them . Although many Web pages can teach kids useful things, there are some other sites waiting to temp young people who are immature and easily affected.

By now, you may shake your head, but wait, let's try to put the problem into perspective Generally.it's safe for kids to use the Internet. The number of sites considered harmful is between 1% and 3%, which shows about 4.5 million other sites are interesting and educational. Besides, to stop children from using these services just because crimes are being committed online would be like telling them not to attend college because students may have accidents on campus.

What can parents do to protect their children from those harmful sites？ The simplest solution is the use of programs which block offensive sites. Such programs are set to screen out certain words likely to appear on”unhealthy”sites. But many sites inappropriate to young people are clever at using words with double meanings that may appear harmless. What's more, not only do the programs fail to do the job satisfactorily, they also take away the decisive role of parents in children's education. A child who downloads bad information or pictures can only be corrected by positive family influence. No filtering program is necessary for a child who has learned to say“no”to sites he knows are inappropriate for him.

Today, when children are exposed to technology at a young age, parents often find themselveslagging behindin computer skills. Surprisingly, this may be the key to your involvement. What is better way to learn about the Internet than to do so alongside your children？

They'll most likely pick it up more quickly than you do, of course, but you'll have the chance to see, and take pride in, your child at work. You may search for information that interests your child together with him and get to know the”friends”he has online, just as you would get to know his other friends.

Thoughtful parents would combine supervision with communication, which is the best way to take advantage of the Internet as a resource while protecting their children. Follow their examples and have fun with kids on the Net!

51. According to the passage, is it wise for parents to keep their children away from the computer？Why？

A) No. Because there are also millions of sites which are interesting and educational.

B) No. Because their children have the right to use computer,

C) Yes. Because there are many rubbish sites which may hurt children.

D)Yes. Because children may become addicted to computer games.

52. In the last two paragraphs, parents are advised to ()

A) learn about the Internet along with their children

B) watch their children while they are at work

C) search for information for their children

D) make friends with their children

53. According to the article, the best way to protect children as well as take advantage of the Internet is ().

A) the use of filtering programs

B) parents，mastery of computer skills

C) the combination of supervision and communication

D) forbidding them to make friends on the Internet

54. Which of the following is closest in meaning to the underlined expression”lagging behind”？

A)hide behind

B) run behind

C)walk behind

D) fall behind

阅读理解

阅读下面的文章，根据文章内容判断文章后的句子是正确(T)还是错误(F)。

THE INTERNATIONAL FOOD SAFETY AUTHORITIES NETWORK (INFOSAN)

With the rapid globalization of food production and trade, international issues related to food safety are likely to increase. Food safety authorities all over the world have realized that food safety problems should be carried out at both national and international levels. There is a pressing need for exchanging routine information on food safety issues, and sharing experiences and information quickly when a food safety related event takes place.

INFOSAN is a joint program between the World Health Organization (WHO) and the Food and Agriculture Organization of the United Nations (FAO). This global network includes 181 Member States. Each has a designated INFOSAN Emergency Contact Point which manages communication between national food safety authorities.

The network aims to:

Promote the rapid exchange of information during food safety related events;

Share information on important food safety related issues of global interest;

Promote partnership and cooperation between countries;

Help countries strengthen their capacity to manage food safety risks.

As part of its routine activities, the INFOSAN Secretariat publishes reports in six languages and provides members with summaries and guidance on relevant food safety issues.

INFOSAN helps exchange food safety information and experience among its members. It is also a useful resource for other public health organizations which recognize INFOSAN as an organization through which findings of investigations and strategies for improving food safety may be shared.

INFOSAN monitors possible international food safety related events in close cooperation with the WHO Alert and Response Operations program. INFOSAN can work with other international organizations to provide assistance to the countries or regions with emerging food safety events of possible international concern.

操作提示：句子正确选择下拉选项框为“T”;句子错误选择下拉选项框为“F”。

1. It is probable that there will be more and more safety related issues worldwide. {T; F}

2. Food safety authorities in each country believe that food safety problems should be solved within their country. {T; F}

3. The major duty of the INFOSAN Emergency Contact Point in each FAO member state is to manage communication between national food safety authorities. {T; F}

4. Public health organizations can get findings of investigations and strategies for food safety improvement from INFOSAN. {T; F}

5. INFOSAN monitors possible international events concerning food safety independently. {T; F}

-- Thank you for sharing this with me.--().

A.Nothing.

B.You can share, too.

C.My pleasure!

A.of

B.with

C.by

What is NOT mentioned as a benefit of flat sharing？

A．Rent is affordable.

B．There is companionship.

C．Housework.

D．There is peace and quiet.

Good friends means sharing happiness but also sadness ____ each other.

A、of

B、with

C、by