Background: 在英国，有些人喜欢用金属探测器来探寻古藏，但英国政府历史环境机构顾问的官员说使用不合法的金属探测器，又称为夜鹰行为是违法的抢夺英国现存的无价之宝。他们准备发起一系列抗议活动促使此问题得到相关部门的进一步重视。

Questions: 请在听下面录音的时候试着回答这些问题。这是一个用来帮助你提高听力技能的练习。

1. What is metal detecting?

2. What do most metal detectorists do with the historical objects they find?

3. What damage was caused by nighthawkers in Suffolk?

4. How have the authorities added to the problem?

Illegal Archaeologists 非法的考古学家

For many, it's a gentle hobby 嗜好 involving fresh air, patience, and perhaps finding the odd coin left from times gone by 过去的日子.

Indeed, the report accepts the vast majority of metal detectorists 使用金属探测器的人, as they are known, are responsible and report their finds.

But there are a small minority who loot 掠夺 ancient sites and sell the proceeds to the highest bidder 出价人, sometimes using violence against anyone who discovers them.

According to the experts, nighthawkers 夜鹰（这里指晚上出动用金属探测器寻宝的人） are often very organised, targeting protected sites 受保护的地带 across the country.

In one field in Suffolk, more than 200 holes were dug, destroying not only the crops 农作物，庄稼, but invaluable archaeological evidence 考古证据 which had yet to be assessed 估值，核实 by the experts.

Responsible metal detectorists point out the authorities do not help matters by placing the location of recently reported finds on the Internet.

GLOSSARY 词汇表 (收听发音, 请单击英语单词)

Answers

1. What is metal detecting?

Using a machine to look for metal objects under the ground.

2. What do most metal detectorists do with the historical objects they find?

They report what they have found to the appropriate authorities.

3. What damage was caused by nighthawkers in Suffolk?

Crops and archaeological objects were destroyed.

4. How have the authorities added to the problem?

By reporting archaeological finds on the internet.