《2025年高中同步单元滚动强化卷高中英语必修第二册北师大版》

My 9-year-old son spends a lot of time on the computer surfing the Internet and instant messaging with his friends. But I worry about him getting into trouble with strangers online.
What can I do to protect him?
Simple surfing and instant messaging with friends are common activities for kids and they are generally safe if you’ve discussed some rules of use with them. Chatting with strangers, however, may be a different story. Although there’s no way to know the actual risk, the FBI (美国联邦调查局) cautions that kids whose Internet activity isn’t monitored are most at risk of being used. Here are some tips that you can follow to protect your children from the risk.
Keep the computer in a common room in the house, rather than in your kid’s bedroom.
Take an interest in the sites your kid is visiting and the people with whom he is chatting. Warn him never to give out his personal information (his phone number, name, address, school name etc.), meet anyone individually or share any photographs.
Ask your kid to introduce you to his new “friends” he meets online and to tell you if he ever feels uncomfortable about conversations that take place. Most importantly, talk to him about the dangers of interacting with strangers online and remind him that people online often don’t tell the truth. The FBI also recommends that parents maintain access to young kids’ online accounts and often check their emails.
Finally, you can use parental controls offered by your Internet Service Provider or through blocking and filtering (过滤) software.
1.What does the underlined word “cautions” in the second paragraph mean? Why?The word here means “warn”. In the second paragraph，it is mentioned that “kids whose Internet activity isn’t monitored are most at risk of being used”，and it is very dangerous，so the FBI warns(cautions) them.
2. How can parents protect their children from strangers online? Why?Try to get in touch with children’s new “friends”. The first sentence of the fourth paragraph mentions that parents can ask their kid to introduce his new “friends” he meets online to them，which means trying to get in touch with children’s new “friends”.
3. What is the main purpose of the text?To tell parents how to protect children from strangers online.

答案： 1.The word here means “warn”. In the second paragraph，it is mentioned that “kids whose Internet activity isn’t monitored are most at risk of being used”，and it is very dangerous，so the FBI warns(cautions) them. 2.Try to get in touch with children’s new “friends”. The first sentence of the fourth paragraph mentions that parents can ask their kid to introduce his new “friends” he meets online to them，which means trying to get in touch with children’s new “friends”. 3.To tell parents how to protect children from strangers online.