1. Welcome

2. Golam Mustafa Assistant Teacher(English) Charail Nurul Huq High School Keranigonj, Dhaka Email : golammustafa1310@yahoo.com golammustafa1310@yahoo.com Mob: 01913943719 Sub: English 1 st Paper Class: Ten Time: 35 Mins Sub: English 1 st Paper Class: Ten Time: 35 Mins

3. Watch the Video and try to guess.

4. The Killing Water

5. By the end of the lesson the students will be able to -  identify some water-born diseases  tell the statistics of arsenic affected people  explain about the prevention of arsenicosis  describe first condition.  mention the sources of water  mention the diseases from the picture LearningOutcomeLearningOutcome LearningOutcomeLearningOutcome  Say the classes the worst sufferer people from arsenicosis

6. Can you tell me anyone what is arsenic? What is arsenicosis? Arsenic is a very poisonous substance. It is one kind of silent killer. A disease caused by arsenic.

7. arsenicosis Dengue cholera headache Diarrhoea Identify the water born diseases individually blindness Water born diseases Arsenicosis Diarrhea cholera

8. Do you know ?  How many people are suffering from arsenicosis in Bangladesh ?  How does arsenic affect health ?  How to prevent arsenicosis ? Read the questions and discuss in pairs.  About 12 million people in Bangladesh are suffering from arsenicosis.  Arsenic causes a kind of poisoning in human body.  The best way to prevent it is to stop taking arsenic contaminated water.

9. How to get rid of arsenic Using surface water after treatment Using water not contaminated with arsenic Using rain water Read the newspaper article silently in stage c from the text book and make a list of the prevention of arsenicosis mentioned in the page and check your answers individually.

10. Effect of arsenicosis Effect of arsenicosis

11. Some sources of water Tube well pond rain Ring well River

12. Find out the answers from the text 1. Where do we get water from? (Source of water) 2. Which tube wells are free from arsenic ? 3. How does arsenic affect on human body ? 4. How can we avoid arsenicosis ? 5. What is the initial treatment for arsenicosis? 1. Where do we get water from? (Source of water) 2. Which tube wells are free from arsenic ? 3. How does arsenic affect on human body ? 4. How can we avoid arsenicosis ? 5. What is the initial treatment for arsenicosis? 1. We get water from pond, river, tube well, ring well, and from the rain. 2. Deep tube well are free from arsenic. 3. Arsenic affects human body through drinking water. 4. By taking arsenic free water, we can avoid arsenicosis. 5. It is believed that vitamins A, C and E are effective for treatment of arsenicosis.

13. . If you want to make a good result, you should study attentively. If it rains, you should stay at home. If I know your phone number, I will phone you. This is the First condition of writing any sentence

14. If a latrine empties into a pond, ------------------ If water is used for washing livestock,-------- Work in group and complete the situation.

15. If there is no source of water other than a red tube well,---------------------------- If water is used for fish cultivation,------- -------

16. 1.If a latrine empties into a pond, we should not use the water from the pond. 2.If water is used for fish cultivation, we should use the water only after treatment. 3. If the water is used for washing for livestock,we should not use the water. 4.If there is no source of water other than tube well we should use the water after filtering for arsenic.

17. 1.How many people are suffering from arsenicosis ? 2. How does arsenic affect health ? 3. How can we prevent from arsenicosis ? 4. Tell me some sources of water. Evaluations 5. What are the effective treatment for arsenicosis? 6. Tell me the structure of 1 st condition.

18. Can you tell me what type of diseases are the pictures showing?

19. Arsenicosis

20. Which one is safe for use? Green colour marked tube well is safe for use

21. Home Task Write a paragraph on Arsenic Pollution within 10 sentences. Write a paragraph on Arsenic Pollution within 10 sentences.