Lesson11

Degrees of comparison of adjectives, comparison constructions

Exercise1. Translate the sentences paying attention to the words in black type:

1. They can also contain smaller pieces of other rock. 2. In other places rocks form much smaller outcrops. 3. The smaller the pieces, the farther they’ll travel 4. The more mass rock gains the more porous it is. 5. Sulphur dioxide and nitrogen oxides dissolve in rain, to produce acids and this can make things worse. 6. Water in the cracks expands when it freezes, this forces the cracks to become wider and wider. 7. Over millions of years weathering can wear down the highest mountains. 8. Many particles become slightly smaller and more rounded in shape as they move down the river bed. 9. Larger grains are not carried as far as smaller grains since it takes more energy to move them. 10. As the river levels out, it travels not so fast as on the hillside and the larger grains are deposited as sediment. 11. Rock fragments are weathered from the highest mountains. 12. The rock fragments get bounced off other rocks and their shape becomes more rounded. 13. The larger fragments get carried by the faster flowing streams than the smaller ones. 14. Rock particles deposited at the same time and in the same place are as large as each other.

Read, translate and retell the text

Water pollution. There are many kinds of water pollution. It includes waste from factories, sewage from people’s homes and oil from tankers and pipelines. Some pollution comes from the land. Many farmers use chemicals to improve their soil and to kill insect pests. These chemicals wash into rivers when there has been heavy rain. They can kill wildlife. Rubbish. People cause pollution when they dump their rubbish. Some rubbish rots away quite quickly, but many plastics will never decay. Litter is ruining some of the most beautiful places on the planet. Nuclear waste. Waste from nuclear power stations is another kind of pollution. Nearly all nuclear waste is safely contained, but small amounts do sometimes escape. Nuclear waste can stay radioactive, or carry on giving out dangerous rays, for thousands of years. Pollution and the future. Scientists around the world are looking for ways to stop the damage caused by pollution. Governments have passed laws to control it. Everyone can play a part, by recycling and by using energy wisely.

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