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Model A:
Science covers the broad field of knowledge.
Does science cover the broad field of knowledge? — Yes, it does.
Science covers the broad field of knowledge, doesn’t it? — Yes, it does.
1. Science deals with the facts and relationships among these facts. 2. A the-
ory becomes a part of scientific knowledge. 3. Science attempts to explain how
and why things happen. 4. Technology makes things happen. 5. Technology
influences different aspects of people’s lives.
Model B:
Scientists study a wide variety of subjects.
Do scientists study a wide variety of subjects? — Yes, they do.
Scientists study a wide variety of subjects, don’t they? — Yes, they do.
1. Some scientists search for clues to the origin of the universe. 2. Scien-
tists examine the structure of the cells of living plants and animals. 3. Other
researchers investigate why we act the way we do. 4. They solve complicated
mathematical problems. 5. Scientists use systematic methods of study.
Достарыңызбен бөлісу: 
