present simple-my sister likes reading
past simple- yesterday we swam in the river.
future simple-i will read it next week
present continuous-i am reading the book, when she came.
past continuous- i was reading the book, when he came.
future continuous- tomorrow in the morning, we will be swimming.
present perfect- the ship has already swum away
past perfect-soon i met her again, she had already found the work
future perfect- he will have buy the book at 3 o'clock tomorrow
present perfect continuous- she has been reading the book for 3 hours.
past perfect continuous- she had been reading the book for 3 hours before her friend came to her..
future perfect continious- she will have been reading the book for 3 hours, before her friend came to her
ответ:
вот как то так
объяснение:
the word “science” comes from the latin word “scientia”, which means “knowledge”. science covers the broad field of knowledge that deals with facts and the relationship among these facts.
scientists study a wide variety of subjects. some scientists search for clues to the origin of the universe and examine the structure of the cells of living plants and animals. other researchers investigate why we act the way we do, or try to solve complicated mathematical problems.
scientists use systematic methods of study to make observations and collect facts. they develop theories that help them order and unify facts. scientific theories consist of general principles or laws that attempt to explain how and why something happens or has happened. a theory is considered to become a part of scientific knowledge if it has been tested experimentally and proved to be true.
scientific study can be divided into three major groups: the natural, social, and technical sciences. as scientific knowledge has grown and become more complicated, many new fields of science have appeared. at the same time, the boundaries between scientific fields have become less and less clear. numerous areas of science overlap each other and it is often hard to tell where one science ends and another begins. all sciences are closely interconnected.
science has great influence on our lives. it provides the basis of modern technology — the tools and machines that make our life and work easier. the discoveries and inventions of scientists also help shape our view about ourselves and our place in the universe. for example, people had made different objects from iron for centuries before they learnt the structure of the metal.but some modern technologies, such as nuclear power production and space travel, depend heavily on science.