Интересные изобретения их плюсы и минусы для чего нужны на языке !

      the clock  is a mechanical, electrical or atomic device that measures the passage of time. mechanical models date from the late middle ages. all mechanical models must have a sourse of energy - for example a falling weight or a wound spring. all such models must be carefully regulated to make them run accurately. the energy turns   a system of wheels that move the hands.

      the computer is based on a microprocessor, a small chip that performs the operation of a central processing unit. the early kinds of computers had a rather small memory, typicaly in the megabyte which is great improvement. computers has changed peoples lives. we are can not imagine our lives without computers and internet of course.

      the  laser is generates ,, well organized,, light. the mechanism uses a process known as stimulated emission. it generates electromagnetic radiation in a special microwave region. nowadays these devices sre widely used in different ways, among which is medicine. the laser is often used to make quick and painless operations.

Stop up smoking. drink no more than a fourteen alcohol units a week. reduce circumference of thighs by 3 inches (i.e. 1½ inches each), with using anti-cellulite diet. purge flat of all any extraneous matter. give all clothes which have not been worn for two years or more to homeless. improve career and find new job with lot potential. save up money in a form of savings. to be more confident. be more an assertive. make better use of the time. not go out every night but to stay in and read books and listen to classical music. give few proportion of earnings to charity. be kinder and to help others more. eat more some pulses. go to gym three the times a week not merely to buy sandwich. put photographs in a photograph albums. form functional relationship with any responsible adult. learn to programme video in.

The snowstorm in our city last week (1) (was) not a large one, but it ( (caused) many accidents. the snow (3) ) to come down in the late afternoon. i (4)  (saw) it through the window of the office where i ( (work) as a secretary. it (6) (had been snowing) for an hour when i (7) (started) to drive home. the cars (8) driving) slowly because the road was dangerous. it was slippery snow that (9) (was freezing) when it (10) (hit) the roads. police cars (11) /were checking) the traffic regularly. i (12) (had been driving) for twenty minutes when the accident (13) (happened). my heater (14) (did not work / was not working), and the snow (15) freezing) on my window, so i couldn’t see well. i (16) ) to clean my window every few minutes. i (17) (had just started) the car again when my tires (18) (started) to slip. the car (19) (slipped) onto the side of the road. when it (20) (hit) the hill, it (21) over) and (22) (stopped). i (23) (felt) and (24) (looked) if i (25) (had been hurt), but i was not. i (26) (had been driving) quite slowly, and luckily i (27) (was wearing) my seatbelt. it was very quiet, with just the sounds of music and falling snow; i (28) (had been/was playing) the radio while driving. soon the police (29) (came) and i (30) (was able) to reach home in another hour.