＃3 Is technology harmful to you? 

In my opinion, technology  brings many benefits and convenient. So I don't think it is harmful.

For example, we can use the smart phone chat with distant friends or family. We can also use the mobile phone to quickly look up the information. 

Technology has begun to enter the home in recent years, like sweeping robot, fingerprint lock, smart speaker, and so on. You can use your  phone to control those appliances. It makes our life more convenient.