In 1686, Isaac Newton (publish) the Mathematical Principles of Natural Philosophy where he (lay) the foundations for universal gravitation and described the motion of the Sun and the planets.

Write a paragraph (80 - 100 words) about your favourite means of communication

She described the outer space _____she had flown into it.

Write a paragraph of about 70 words about the eating habits in your area

Tom regrets (spend) too much time (play) computer games.

Write a paragraph (120 - 150 words) about things you should or shouldn’t do to reduce the negative impact of travelling on the environment. You may use the ideas in the reading to help you.

Talk about the negative effects of tourism on a region or country

Many people simply can't imagine a life without plastic and the fact is that this (1. MARK) ________ material has really made its (2. PRESENT) ________ felt since its invention. In a relatively short period of time, plastic has gone from novelty to dominator. Part of what makes the story of plastic so (3. COMPEL) _________ is that it now surrounds us in all areas of our lives. Some people, however, have had enough of plastic, and one historian had proposed that for one day every year we should all (4. TAKE) ________ not to touch anything made of plastic. This means (5. VARY) ________ countries will not be able to buy anything, except by means of coins, because their bank notes are printed on plastic, and another (6. SEQUENCE) ________ would be that no one would be able to use their credit cards. People would have to write in pencils rather than pen, and nothing could be handled that was wrapped in plastic. It is hoped that this (7. INITIATE) _________ would be a major breakthrough in making people realise how much of an (8. INTRUDE) _________ plastic is on our lives.

Natural gas is cheaper and less polluting than coal.

=> Coal is…………………………………….

According to the passage, the teachers of the 21st century                        .