Unit-4

Unit-4 The power of Computers قدرت کامپیوترها

sophisticated • مشگل و پیچیده، در سطح بالا، خبره و ماهر • 1 • having a lot of experience of life, and good judgment about socially important things such as art, fashion etc. • 2 • a sophisticated machine, system, method etc. is very well designed and very advanced, and often works in a complicated way. • sophisticated software /a highly sophisticated weapons system • 3 • having a lot of knowledge and experience of difficult or complicated subjects and therefore able to understand them well • sophistication noun • مهارت، کمال Seyed Morteza Mousavian / www.mousavian.ir / info@mousavian.ir

Supervision • A subject that is topical is interesting because it is important at the present time. • Topical subject/issue/theme etc • A new TV comedy dealing with topical issues • Topical jokes (=jokes about topical subjects) Seyed Morteza Mousavian / www.mousavian.ir / info@mousavian.ir

Vital: 1 extremely important and necessary for something to succeed or exist ￚsynonymcrucial The work she does is absolutely vital . vital to These measures are vital to national security. vital for Regular exercise is vital for your health. it is vital (that) It is vital that you keep accurate records. it is vital to do something It is vital to keep accurate records. It is vital to be honest with your children. The tourist industry is of vital importance to the national economy. Richardson played a vital role in the team's success. The samples could give scientists vital information about long-term changes in the earth's atmosphere. Seyed Morteza Mousavian / www.mousavian.ir / info@mousavian.ir

2 full of energy in a way that is exciting and attractive Rodgers and Hart's music sounds as fresh and vital as the day it was written. 3 [only before noun] necessary in order to keep you alive the body's vital processes vital organs (=heart, lungs etc) 4 vital signs medical the signs that show someone is alive, for example breathing and body temperature Seyed Morteza Mousavian / www.mousavian.ir / info@mousavian.ir

proliferate: if something proliferates, it increases quickly and spreads to many different places Computer courses continue to proliferate. Telecommute: someone who works at home using a computer connected to a company's main office telecommuting noun [uncountable] Superhighway: American English a very large road on which you can drive fast for long distances see also information superhighway Seyed Morteza Mousavian / www.mousavian.ir / info@mousavian.ir

Seyed Morteza Mousavian / www.mousavian.ir / info@mousavian.ir

والحمدلله رب العالمین Seyed Morteza Mousavian / www.mousavian.ir / info@mousavian.ir

Unit-4

Unit-4

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