Unit 1Water Exercise 1 ( Viewing and listening ) I. Listen to the sentences and circle the words you hear. A.real B. really C. rare A. million B. billion C. trillion A. safe B. safely C. save A. west B. rest C. best A.rock B. dock C.lock I. Listen and choose the right picture. III. Listen to the passage and complete the sentences. Fill in each blank with no more than three words. 1. We can live with no water for only_____. 2.Water can_____our bodies and keep us healthy. 3. After playing outside or running around,drinking water_____and makes us feel good. 4. It is advised that most of us drink_____of water every day. 5. It is helpful to drink a glass of water, after getting up or one hour_____. IV. Choose the best answer. Which of the following underlined parts is different in pronunciation from the others A. manage B. safely C. factory D. satisfy Water covers a large proportion of_____Earth's surface. A. a B. an C.the D. / The mountain is covered_____snow all year round. A. from B. in C. with D.at Kate gave her friends some cookies and kept _____for herself. A. the rest B. the other C. another D. others Tom forgot to turn off the tap,_____the water running all night. A. left B. leaves C. to leave D. leaving V. Complete the sentences with the given words in their proper forms. The big _____ are trying to stay alive by cutting costs. ( factory ) The soup was so_____that it made her thirsty. ( salt) We are warned that this area is_____ and dangerous to enter. ( pollution) I am busy these days and _____have time to read a newspaper.( rare) Luckily, all passengers escaped from the burning bus _____. ( safe ) VI. Rewrite the following sentences as required. Anna needs to work on weekends to finish the task. (改为否定句) Anna_____ _____ to work on weekends to finish the task. Only 3% of the Earth's water can be used for drinking.(对画线部分提问) _____ _____ of the Earth's water can be used for drinking Parents take pride in their daughter's admission to Peking University.(保持句义不变) Parents are _____ _____their daughter's admission to Peking University. drinking water, there, enough safe, on the Earth, isn't, for humans (连词成句) _____ VII.Read and choose. In our life, we may use water unreasonably. Let's take flushing (冲) toilets for example. Every day, huge amounts of clean fresh water are used to flush away human waste. This doesn't seem like the wisest use of our limited fresh water, does it Some people are already rethinking such practices. They are looking for smarter ways to use water. I recently visited Jenfelder Au, a new neighborhood in Hamburg, Germany, with an experimental wastewater reuse project. His new system separates wastewater into three streams to be reused locally. Rainwater is collected to water the gardens. “Gray water”from kitchen and bathroom sinks is used to flush toilets. And “black water” from toilets is sent to a local treatment plant to be turned into biogas(沼气).The system reduces water use by 30 percent and prod ... ...
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