英语听力文摘 English Digest 39、父母控制软件让恶意网站无法趁虚而入

　　The Internet has become an indispensable part of life for many children and young people nowadays. Yet risks abound¹.
"Children must be protected from dangerous content," whether it's pornography or depictions of violence, says Axel Kossel of c't magazine. Software is capable of handling a portion of that effort. But ultimately parents need to be involved.
Parents with limited Internet experience may be tempted² to simply ban their children from using the Internet altogether. Neither educators nor online security experts consider this a good solution.
The objective is to prevent the child from viewing unsuitable content. One option is programs like SafetyKid that work with so-called whitelists. These allow children to enter only the addresses for pages that they are explicitly³ permitted to use, Kossel explains. This shielding tactic⁴ is only suitable for very young children.
Programs built around blacklists sniff⁵ out violent or pornographic sites and block them. Although the lists are constantly updated, they still have weaknesses: "They can't block everything, since thousands of new sites appear every day," Kossel says.
There is also free parental⁶ control software available on the Internet.
No program works absolutely reliably, Axel Kossel says. To some extent that is because many children are savvier about the Internet than their parents. That allows them to find relatively⁷ easy ways around the software barriers.
The experts instead recommend setting up a "family PC" where everyone can surf together.
indispensable  (adj.)   少不了的；绝对必要的
depiction  (n.)   描写；描述
to be tempted to   想；受引诱
explicitly  (adv.)   明确地；明白的
shielding  (n.)   保护；遮蔽
to sniff out   找出；嗅出
absolutely  (adv.)   完全地；绝对地
to some extent   就某方面；从某层面
barrier  (n.)   障碍；阻碍
to set up   设置；设立

1 abound   

vi.大量存在；(in，with)充满，富于

参考例句：

• Oranges abound here all the year round.这里一年到头都有很多橙子。
• But problems abound in the management of State-owned companies.但是在国有企业的管理中仍然存在不少问题。

2 tempted   

v.怂恿（某人）干不正当的事；冒…的险（tempt的过去分词）

参考例句：

• I was sorely tempted to complain, but I didn't. 我极想发牢骚，但还是没开口。
• I was tempted by the dessert menu. 甜食菜单馋得我垂涎欲滴。

3 explicitly   

ad.明确地，显然地

参考例句：

• The plan does not explicitly endorse the private ownership of land. 该计划没有明确地支持土地私有制。
• SARA amended section 113 to provide explicitly for a right to contribution. 《最高基金修正与再授权法案》修正了第123条，清楚地规定了分配权。 来自英汉非文学 - 环境法 - 环境法

4 tactic   

n.战略，策略；adj.战术的，有策略的

参考例句：

• Reducing prices is a common sales tactic.降价是常用的销售策略。
• She had often used the tactic of threatening to resign.她惯用以辞职相威胁的手法。

5 sniff   

vi.嗅…味道；抽鼻涕；对嗤之以鼻，蔑视

参考例句：

• The police used dogs to sniff out the criminals in their hiding - place.警察使用警犬查出了罪犯的藏身地点。
• When Munchie meets a dog on the beach, they sniff each other for a while.当麦奇在海滩上碰到另一条狗的时候，他们会彼此嗅一会儿。

6 parental   

adj.父母的；父的；母的

参考例句：

• He encourages parental involvement in the running of school.他鼓励学生家长参与学校的管理。
• Children always revolt against parental disciplines.孩子们总是反抗父母的管束。

7 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。