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Unit 4 Water: Where Has It All Gone? Deborah Soong.

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Presentation on theme: "Unit 4 Water: Where Has It All Gone? Deborah Soong."— Presentation transcript:

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2 Unit 4 Water: Where Has It All Gone? Deborah Soong

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4 Teaching ActivitiesIndex

5 Teaching Activities 1st period 1st period 1. Warm-up Warm-up 2. The Vocabulary, and Idioms & Phrases within Paragraphs 1-4 The Vocabulary, and Idioms & Phrases within Paragraphs 1-4The Vocabulary, and Idioms & Phrases within Paragraphs Reading – Paragraphs 1-4 Reading – Paragraphs 1-4Reading – Paragraphs 1-4 2nd period 2nd period 1. The Vocabulary, and Idioms & Phrases within Paragraphs 5-9 The Vocabulary, and Idioms & Phrases within Paragraphs 5-9The Vocabulary, and Idioms & Phrases within Paragraphs Reading – Paragraphs 5-9 Reading – Paragraphs 5-9Reading – Paragraphs Post-reading Post-reading 3rd period 3rd period 1. Word File Word FileWord File 2. Sentence Patterns Sentence PatternsSentence Patterns 3. Expansion Expansion 4. Writing Practice Writing PracticeWriting Practice 4th period Oral & Listening~ Review Unit 1 Unit 2 Unit 3 Unit 1Unit 2Unit 3Unit 1Unit 2Unit 3

6 Warm-up Vocabulary Idioms & Phrases Reading~ Paragraphs 1-4

7 Warm-up

8 Water is made up of very small particles. The water particles from 1 _____, 2 _____, ______, and ______, 3 ____, and 4 ____________ evaporate and become water vapors. After cooling down, water vapors become 5 ______. As clouds rise, the vapors cool down and condense as 6 ______ or 7 ______. At last, the water returns to the Earth. soil seas rivers oceans air ground water clouds rain snow Back

9 Listen to paragraphs 1-4. Skip

10 Now, answer the following questions.

11 ( ) Water is on our mind ______. (A) when there is a flood (B) when there is a severe drought (C) when it rains heavily (D) when the demand decreases B

12 ( ) More than 90 percent of human water use goes to ______. (A) gardening (B) daily use (C) farming (D) industrial use and agricultural irrigation D

13 Reading

14 Until recent years, you probably didnt think much about water. Until recent years, you probably didnt think much about water. You probably didnt think much about water until recent years. It was probably not until recent years that you thought much about water. Probably not until recent years did you think much about water. Only in recent years did you think much about water. Before the past few years, water resource never was a big problem in Taiwan, so you didnt think a lot about it.

15 It was always there when you wanted it: for drinking, washing your clothes, or taking a shower. However, in the early summer of 2002, the severe drought in Taiwan changed all that, and water was suddenly on everyones mind. water was suddenly on everyones mind everyone was suddenly worried and concerned about water and thought a lot about it

16 Reservoirs throughout the island were depleted to record levels because of the lack of rainfall. were depleted to record levels dipped below the record low went lower than record levels fell down from the previous record low Reservoirs throughout the island were depleted to record levels because of the lack of rainfall. The water levels at reservoirs all over the island reached/dropped to a new low due to the shortage of rainfall.

17 Water rationing had to be instituted in much of Taiwan. water rationing = water restrictions; water-rationing control; rationing regime institute water rationing enforce/put in place/carry out/ Implement/ impose Next

18 Water rationing had to be instituted in much of Taiwan. much (quantifier). Much of the city was destroyed in the attack. Marys father was absent from much of her childhood. She does much of her work abroad. Water-rationing measures in Taiwan in summer 2002

19 2002 (water-rationing measures) Cutting water supplies to households every other day. Cutting water supplies once every five days to city districts on a revolving basis. Cutting water supplies to public and private recreational areas, such as swimming pools, saunas, car washes and beauty spas. Shifting water away from the agricultural sector to increase supplies for household consumption. Reducing water pressure during the nighttime.

20 Taiwan was by no means alone in its water problems. by no means = not at all; under no circumstances; in no way It is by no means easy to master a foreign language. Taiwan was by no means alone in its water problems. By no means was Taiwan alone in its water problems. Taiwan was not at all the only area which had water problems.

21 Today, many countries face a serious water shortage, and the problem will only get worse. the World Bank About 80 countries now have water shortages that threaten health and economies while 40 percent of the World more than 2 billion people have no access to clean water or sanitation. get worse = deteriorate; go from bad to worse Smoking made his illness get worse.

22 The International Water Management Institute (IWMI) predicts that by 2025, severe water shortages will affect 2 to 3 billion people. The mission of the IWMI is to improve water and land resources management for food livelihoods and nature. Next

23 The International Water Management Institute (IWMI) predicts that by 2025, severe water shortages will affect 2 to 3 billion people. by = not later than; before … By next week, I will finish all my reports. [ ] by until I will come by 10. I will stay here until 10. Next

24 The International Water Management Institute (IWMI) predicts that by 2025, severe water shortages will affect 2 to 3 billion people. by 2025, severe water shortages will affect 2 to 3 billion people 2 to 3 billion people will face severe water shortages by 2025

25 Water scarcity is a complex problem involving several factors. Water scarcity is a complex problem involving several factors. Several factors are involved in the problem of water shortage. Next

26 population growth, food production, climatic change and variability, land use, water quality, water demand, sectoral resources and institutional capacity, poverty and economic policy, legislation and water resource management, international waters, political realities, sociological issues, etc.

27 Water is a reusable resource. That means the amount of water on the Earth is finite, but it can be used over and over again. That means the amount of water on the Earth is finite, but it can be used over and over again. In other words, although the amount of water on the Earth is finite, we dont have to feel worried that one day we might run out of it. That is because water is reusable.

28 Since the amount of water is finite, there are problems with supply when demand increases. Since the amount of water is finite, there are problems with supply when demand increases. Because the amount of water on the Earth is limited, when the demand for water becomes stronger, there are problems of water supply. (In other words, the worlds water supply is not keeping pace with the demand being made on it.) since because.

29 It is important to remember that 97 percent of the Earths water is in the oceans, and most of the rest is frozen in the polar ice caps. most of the rest is frozen in the polar ice caps as little as 3 percent of the Earths water is fresh water, and of this small percentage, most of it is in the form of ice, found in the polar ice caps

30 That means less than 1 percent of the worlds water is usable. That means less than 1 percent of the worlds water is usable. That is to say, less than 1 percent of the worlds water can be used.

31 Increased demand for water resources comes from two main sources: population growth and industrialization. Increased demand for water resources comes from two main sources: population growth and industrialization. Two prime causes of increased demand for water are the ever-increasing population and industrialization.

32 Industrial use and agricultural irrigation together account for more than 90 percent of human water use. Industrial use and agricultural irrigation together account for more than 90 percent of human water use. Industry and irrigated agriculture take more than 90 percent of the worlds fresh water.

33 As populations rise, the need for water for food production also increases. populations. People should pay attention to the needs of the older populations in the world. As populations rise, the need for water for food production also increases. The demand for water for food production increases with rising populations.

34 Industry requires large amounts of water.

35 It is estimated that each person needs about 100 liters of water per day for drinking, washing, and cooking, but usage in industrialized countries is typically over 200 liters per person per day, and can be as high as usage in industrialized countries is typically over 200 liters per person per day, and can be as high as the amount of water used in industrialized countries is usually more than 200 liters each person each day, and can be high up to 450 liters. Back


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