Ifornity Language School IELTS Band 7+ Vocabulary Topic: Hi-Tech Word Meaning Pernicious (a) Having a harmful effect Example The pernicious influence of TV violence on children Telecommunication A device (phone) allowing The mobile phone has taken the device (n) people to communicate place of telephone as an electronic telecommunication device Ubiquitous (a) = Prevalent (a) = very The mobile phone is becoming popular, seeming to be increasingly ubiquitous everywhere Hands-free (a) Able to be used without Despite sometimes using hands-free using hands systems, motorists have a much higher risk of collisions when driving and talking on the phone simultaneously Prohibit (v) = to ban (v) The use of mobile phone has been prohibited in many public places Portable (a) Can be moved or carried Mobile phones are portable and easily multi-functional devices Detrimental (a) = fatal (a) = having a very Similar to many hi-tech products, bad impact computers have detrimental effects on users’ health Prone to Have a tendency to, more Long-time heavy phone users seem likely to be affected by sth to be more prone to certain types of mental health problems Indispensable (a) Essential; hard to live When its downside persists, the without internet had proven indispensable in modern life Sedentary (a) In which you spend a lot The internet leads to the growing of time sitting down popularity of a sedentary lifestyle Exposure (n) The state of being in a Children’s exposure to harmful place or situation where contents on the internet there is no protection Telecommuter (n) A person who works It can be predicted that most of from home and home telecommuters or heavy communicates with Internet users will become socially others by phone/email isolated