Цели урока:
- Рассказать об уникальном озере Байкал;
- Ознакомить с его историей, флорой и фауной;
- Развитие навыков аудирования, чтения, говорения.
Использованные технологии: информационно-коммуникативные, проектные.
Оборудование: презентация озера Байкал, интерактивная доска, карта края.
Ход урока
1. Организационный момент (приветствие и объяснение целей урока).
Good morning, everybody. Welcome to our lesson, devoted to our unique Lake Baikal.
Today you'll learn more about this lake, its history, its flora and fauna. We are sure, you'll feel pride for it and prove anybody, that it is the most wonderful lake in the world.
We hope, you'll like the presentation about this lake.
Be attentive and active. Take part in discussion.
At the end of our lesson we'll suggest you questions to know your reflex.
2. Преддемонстрационный этап.
What associations do you have with Lake Baikal?
Have you ever been to Lake Baikal?
What impressions do you have?
Do you enjoy swimming in it?
Well and now you'll see the presentation about Lake Baikal. Be ready to answer the questions after the presentation. But at first look and read some words that will help you to understand it.
Работа над незнакомыми словами:
Seaweed - морская водоросль
Tributary - приток (реки)
Perish - погибать, умирать
Seal - тюлень
Stoat - горностай
Mink - норка
Lynx - рысь
Reindeer - олень
3. Демонстрационный этап.
Работа с презентацией "A tour to Lake Baikal ". Во время просмотра ученики читают вслух предлагаемые тексты. (См. Приложение)
Слайд 1. Lake Baikal.
Cлайд 2. Lake Baikal is an amazing feature of Nature. It is situated in the centre of the Asian continent. The lake is unique in all respects.
Слайд 3. It is the oldest lake - it is 20-30 millions years, and it is capacious - it can hold the waters of the Baltic Sea and those of the five Great American Lakes. It is also the biggest lake - it is equal to the territories of Belgium and Holland taken together. It is the deepest lake - its depth in some places reaches 1.634 metres. The Baikal water is the most important stock of the planet's drinkable water, it constitutes one-fifth of it.
Слайд 4. As to the lake's beauty, it is hard to describe it better than the Russian writer Anton Chekhov, who visited it at the last century. He said: "Lake Baikal is wonderful and it's not for nothing that the Siberian calls it the sea, not lake. Its water is exclusively transparent, so that one can see through it as trough the air. Its co lour is light blue to please the eye".
Слайд 5. So how is the lake's name originated? Who named it Baikal? In the Middle Ages in the Mongolian language people called it "Tengiz", then before the Russians came Baikal was called "Baigal-dalai" or "Baigal-Muran" (dalai means sea, muran means river in the Mongolian language) or "standing fire" (Baikal- the reflection of heaven).
Слайд 6. There are 852 species, 233 kinds of seaweeds, more than 1550 kinds of animals, 50 species of fish, nearly 600 species of plants, and 300 species of birds.
Слайд 7. Do you know about the famous Baikal fish? Certainly it's omul. But omul came from the ocean. How could omul reach the lake? The Baikal omul lives 5-14 years. For its reproduction the omul swims up the tributaries of Baikal: the upper Angara, the Kichera, the Selenga and other small rivers.
Слайд 8. There is a mysterious self-bearing fish - golomyanka. It throws 2-3 thousands of larvae into the water and perishes. Its body is without scales. Its body is transparent and in light you can see its skeleton. The golomyanka's body consists of 3% of fat. And it is used in the Tibetan medicine.
Слайд 9. In Baikal you can find a sea animal- seal (it is Baikal seal). It has beautiful fur and its fat has medicinal qualities. Its meat is just like chicken, the uncooked liver is rich in vitamins and they say it's the most valuable product. The seal lives in the north and in the middle part of Baikal.
Слайд 11. The taiga expanses surrounding Lake Baikal are famous for fur-bearing animals, such as squirrels, sables, stoats, minks, foxes, hares and others. In the taiga in the vicinity of Baikal you can meet bears, the lynx and the Siberian reindeer.
Слайд12. Barguzin sables have always been considered the greatest wealth of the lake Baikal area. They are beautiful and strong, especially near the lake and in places where it is colder. Their shimmering dark fur stands out for its silkiness.
Слайд 14. Lake Baikal and its shores have been declared a specially protected zone of our country. There is a hope that one of the most beautiful and deepest lakes in the world will never die.
4. Последемонстрационный этап.
На интерактивной доске появляются вопросы к презентации.
Ex.1 Answer the questions:
Who visited Lake Baikal at the end of the last century?
How old is Lake Baikal?
What is the lake's capacity?
What is the depth of the lake?
How is the lake's name originated?
What makes Baikal unique?
What is the most famous Baikal fish?
What can you tell about Baikal seal?
What can you tell us about Barguzin sables?
What animals are under special protection in the Lake Baikal area?
Ex.2 Continue the sentences:
Lake Baikal is situated :
Its age is :
Its depth in some places reaches :
The Baikal water is :
The famous Baikal fish :
In Baikal you can find :
The seal lives :
The taiga expanses surrounding Lake Baikal are famous for :
Barguzin sables are :
They are :
Lake Baikal and its shores have been declared :
5. Завершающий этап. (Подведение итогов, домашнее задание)
To sum up, your results are good, thank you for your work. And tell me please what do you like most of all during our lesson?
At home you must write down a short article about Lake Baikal.
Приложение (презентация к уроку).