Экзаменационная устная тема к ГИА Изобретения 20 века / Inventions of the 20th century (9 класс,ЛНР)

Inventions of the 20th century
 The 20th century was marked by lots of outstanding inventions both in science (for example, penicilin in medicine) and technology (robots, nano-technologies, Internet and of course, computers and cell phones). We use them in every day life.
 I consider myself to be addicted to my computer and cell phone/ As for PC I use it to surf the Net, play games and search for useful information.
 I usually use my cell phone to get in touch with my relatives and friends, to chat or simply to listen to music, to calculate something or switch on the alarm.
 All the inventions make our life easier.
 But we should keep in mind that all of them can have harmfull effect on our body and mind in case of using them irrationaly.