In the modern world, it is difficult to imagine life without a computer. These devices have relatively recently entered human life, firmly taking place in all spheres of activity and becoming irreplaceable assistants. We have computers in our offices and at home. You can often see a picture that even small children who are just starting to walk and have not yet talked can already skillfully perform the simplest manipulations with this electronic device. The computer has accelerated many technological processes, as well as simplified social communication between people.
But do not forget that no matter how good a computer is, it can cause irreparable harm to human health!
Long-term, improperly organized work at the computer can increase the risk of developing various diseases of the organ of vision, muscles, joints, internal organs and body systems.
For example: because of the work behind a computer monitor, human vision suffers. Often, during prolonged work at a computer, the eye muscles are overstrained, a person blinks much less often, the cornea is not properly moisturized, painful sensations appear in the eyes, it becomes painful to blink, move them, there is a burning sensation, or the clarity of vision deteriorates and double vision. Almost all people who spend several hours a day at a computer without interruption are familiar with this phenomenon.
1.Where is John? - He IS PLAYING the piano.
2.Our boys usually PLAY football in the yard.
3.Call them. They ARE PLAYING football in the yard.
4.My aunt DOESN'T MAKE cakes on Mondays, but she IS MAKING one now.
5.Ann usually MAKES doll dresses herself.
6.She is in the kitchen. She IS MAKING tea for us.
7.What ARE YOU LOOKING at? – I am looking at that tree in the garden. I LIKE to look at it early in the morning.
8.I am busy. I AM MAKING my bed.
9.I always MAKE my bed before breakfast.
10.Run downstairs. Your sister IS WAITING FOR you.
Поделитесь своими знаниями, ответьте на вопрос:
Раскройтескобки, употребляяглаголывформе past continuous tense. this morning was really beautiful. the sun (shine), the birds (sing) and everyone in the street (smile) and (say) hello to each other. mrs patrik looked beautiful last night. she (wear) a lovely evening dress. when we arrived, she (make) some coffee. while i (have) a bath the telephone rang. while we (walk) in the park it began to rain. he wind (blow) and the rain (beat) down. john (stand) at the bus stop shivering. he (try) to imagine being at home sitting by a warm fire. finally he saw the lights of the bus which (approach) from the distance. at 3 o'clock yesterday a geometry lesson (go) on. the teacher (draw) diagrams on the blackboard but i (look) through the window and heard nothing. i (think) about the coming new year's party. she promised not to report me to the police but ten minutes later i saw that she (talk) with a policeman and from the expression on his face i understood that she (tell) him about me. the dentist's waiting room was full of people. some (read) magazines, others just (turn) over the pages. a woman (knit), a child (play) with a toy car. everybody (wait) for the nurse to say "next, please". i lit the fire at 6.00 and it (burn) brightly when jane came in. - the house next to yours was full of policemen and police dogs yesterday. - what they (do)? - i heard that they (look) for drugs. "what you (do) between 9.00 and 10.00 yesterday? " asked the detective. "i (clean) my house", said mrs jones. "i always clean my house at this time"
this morning was really beautiful. the sun was shining , the birds were singing and everyone in the street were smiling and saying hello to each other. mrs patrik looked beautiful last night. shewas wearing a lovely evening dress. when we arrived, she was making some coffee. while i was having a bath the telephone rang. while we were walking in the park it began to rain. he wind was blowing and the rain was beating down. john was standing at the bus stop shivering. he was trying to imagine being at home sitting by a warm fire. finally he saw the lights of the bus which was approaching from the distance. at 3 o'clock yesterday a geometry lesson was going on. the teacher was drawing diagrams on the blackboard but i was looking through the window and heard nothing. i was thinking about the coming new year's party. she promised not to report me to the police but ten minutes later i saw that she was talking with a policeman and from the expression on his face i understood that she was telling him about me. the dentist's waiting room was full of people. some were reading magazines, others just were turning over the pages. a woman was knitting, a child was playing with a toy car. everybody was waiting for the nurse to say "next, please". i lit the fire at 6.00 and it was burning brightly when jane came in. - the house next to yours was full of policemen and police dogs yesterday. - what were they doing? - i heard that they were looking for drugs. "what were you doing between 9.00 and 10.00 yesterday? " asked the detective. "i was cleaning my house", said mrs jones. "i always clean my house at this time"