我的发明英语作文70字

in modern life we have many inventions.thesemachines are very useful.they can make things better and faster than people.a washing machine can help us wash clothes.we have more time to do that we want to doduring this time.a printing machine prints a lot of books,newspapers and other things qiickly.buses,bikes,cars,trains,planes and shipshelr us travel faster than before.the compter is wonderful machine.it is one of the most important inventions.today it is used in many ways.it can store innformations and work out math problems millions of times faster than a person can.in a few years,the computer may touch the lives of everyone.even people in faraway villages.

i will invent a time machine in the as it 's been my dream in my life. time machine allows people to travel back in time to prevent disaster to happen.

it also allows people to tavel into dinstant future to find out solution for incurable illness including cancer and aids. however, this machine may be abused by people to create chaos in our world or even completely change our history. therfore, security features are essential for my invention.

the future invention of time machine will definately bring more advantages for human being.

the abacus was invented in the sixth century by chinese people.the umbrella was invented about 4000 years ago in assyria,china and egypt.the binoculars was invented in 1854 by ignatio porro in italy.the camera was invented in 1827 by joseph nicephore niepce who took the first picture.the bicycle was invented in 1880s in england.

i have an invention.it is a robot that can help take care of sick children.it has a computer program which tells it what to do.at the right times,the robot takes the medicine to the sick kids.the robot also has a cooker built into it,so it can cook meals for the children.finally,it can also play music to cheer the children up.this is my invention,a high technology robot for hospitals

what is my favorite invention?

we knew there had been many inventions at the last century, for example, electric light bulb, telephone, phonograph, mimeograph machine, automobile, airplane, atomic weapon, computer and so on. what is my favorite invention?

personally, my favorite invention should be computer. in the old days, many scientists took much time to calculate and deal with research data, so the effective time in doing research was relatively shortened. for millions of times of calculating per second by computer, the researchers may have enough time to study more important issues. the processing of experiment results became very simple and easy. aren’t those all evidences that the computer is one of the greatest inventions in the last century, are those?

so my favorite invention is computer.

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