1.Закончите предложения, используя данные ниже слова, при необходимости меняя их грамматическую форму To provide, to refer, strong, to invent, to be, to run, to transfer, to charge, to use, liquid, to coat. 1. The first battery … in 1800 by Alessandro Volta. 2. Near the end of the 19th century, the invention of dry cell batteries, which replaced … electrolyte with a paste, made portable electrical devices practical. 3. In the modern sense of the term, a battery is a device that … a current by means of an electrochemical reaction, wherein electrons … from one chemical to another. 4. However, the original usage of the term not to an electrochemical cell but to a set of linked Leyden jars, which, in the 18th century were used by scientists as a means of storing charge. 5. Leyden jars … the first capacitors, and basically consisted of a glass jar whose inner and outer surfaces with metal foil, and had an … electrode through its center. 6. They could … with a static generator, and … by touching a conductor to its electrode. 7. Scientists could obtain … discharges by linking the electrodes of multiple jars together. 8. It was Benjamin Franklin who, in 1748, first … the word "battery" to describe a similar assembly of glass plates with lead sheets pasted on either surface.
It is difficult to live without music. We hear music everywhere: on the streets, at home, on radio and on television, in stores, in parks, in concert halls and on the coast, sometimes in the woods.We can not live without music. We like to listen to music, we love to dance to the music, we know how to play musical instruments.Music - a combination of many sounds. They are short and long, weak and strong. Music reflects the mood and emotions of people.Some people love folk music. In our country there are numerous folk groups. It is interesting to listen to their music and songs. Last week, my friends and I attended the concert of folk music. This concert made us impressed.Some people love the classics, but young people prefer modern music: rap, fate and pop music. If you want to listen to contemporary music, you can visit music-halls and concerts of popular bands and singers. Or buy flowers and visit the "Eurovision".I like to listen to songs performed by our Ukrainian popular singers. This talented singer and songwriter, and I like to go to their concerts. My friends and buy your tickets in advance and often daryly our favorite performers flowers.
Present Simple-Peter likes fishing.
Present Continuous-Peter is always leaving.
Present Perfect-he has caught .
Present Perfect Continuous-He has been fishing.
past simple-You looked really lovely yesterday.
past continuous-I was learning yesterday.
past perfect-I had met him before.
past perfect continuous-We had been in Italy five times before we finally settled down there.
Future simple-We will probably buy some sandwiches.
Future continuous-I will be waiting for you at 8o*clock tomorrow.
Future perfect- Everyone will have forgotten me.
Future perfect continuous-You will have been playing.