Дворецкая, 8. Учебник. Unit 5. Lessons 4-5

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Yes, he was right. (No he wasn’t right)
1. dishwasher
2. a woman
3. in 19th century
1. F
2. T
3. F
4. F
5. T
6. F
7. T
1. Because people don’t like and don’t want to do the washing up.
2. That the dishwasher was invented in 19th century.
3. She was determined and a little bit mean.
4. I agree, the person should be intelligent, lucky and determined.
5. A robot which would cook a dinner, supper and breakfast.
1. To the end of the 19th century.
2. Had invented – earlier (past perfect): she built – past simple.
1. Yes, there is a difference between these two sentences.
2. Past perfect is used in the first sentence because the action was earlier, then in the second sentence.
3. She had lost most of her dishes – this action happened earlier, because of the tense Past perfect.
4. Because, before.
5. That dishwasher won the prize.
1. It became easier to diagnose many diseases after Wilhelm Roentgen had discovered X-rays.
2. Divers had not been able to stay under water for several before Jacques-hours before Yves Cousteau and Emile Gagnan designed the aqualung.
3. People started believing that a man could travel by air when the Wright brothers had invented the first working aeroplane.
4. Many terrible diseases were cured after Alexander Fleming had discovered penicillin.
5. It became easier to make a cup of tea after Thomas Sullivan had created teabags.
2
John Coathupe was an engineer. One day he needed to pick up leaves from the swimming pool. The day was raining and cold. John didn’t want to wet picking up the leaves. And suddenly he had an idea how to pick up leaves. He drew a sketch of a garden vacuum and tried it. The invention worked. He decided to write to companies to sell his invention. In a month one of the companies replied to John. He was happy. His invention became popular. He got a good income and become wealth.
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