Task 4. Word formation. Complete the text with the correct forms of the words in brackets to fill the gaps (19–24). LAKE BAIKAL: Lake Baikal is a rift lake in Russia, located in (19) ______ Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast. (SOUTH) Lake Baikal is the (20) ______ freshwater lake by volume in the world, containing roughly 20% of the world's unfrozen surface fresh water. (LARGE) With a maximum (21) ______ of 1,642 m, Baikal is the world's deepest lake. (DEEP) Baikal's age is estimated at 25–30 million years, making it one of the most ancient lakes in (22) ______ history. (GEOLOGY) Russian, U.S., and Japanese cooperative studies of deep-drilling core sediments in the 1990s provide a detailed record of climatic (23) ______ over the past 6 million years. (VARY) The lake is (24) ______ surrounded by mountains. (COMPLETE)

Перевод задания: Образуйте правильные формы слов в скобках, чтобы заполнить пропуски в тексте (19–24).

Выполнение на английском:

LAKE BAIKAL

Lake Baikal is a rift lake in Russia, located in southern Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast.

Lake Baikal is the largest freshwater lake by volume in the world, containing roughly 20% of the world's unfrozen surface fresh water.

With a maximum depth of 1,642 m, Baikal is the world's deepest lake.

Baikal's age is estimated at 25–30 million years, making it one of the most ancient lakes in geological history.

Russian, U.S., and Japanese cooperative studies of deep-drilling core sediments in the 1990s provide a detailed record of climatic variations over the past 6 million years.

The lake is completely surrounded by mountains.

Перевод выполненного текста:

Озеро Байкал

Озеро Байкал — рифтовое озеро в России, расположенное в южной Сибири, между Иркутской областью на северо-западе и Республикой Бурятия на юго-востоке.

Байкал — крупнейшее в мире пресноводное озеро по объёму; в нём содержится около 20% незамёрзшей поверхностной пресной воды мира.

Максимальная глубина Байкала составляет 1 642 м, поэтому это самое глубокое озеро в мире.

Возраст Байкала оценивается в 25–30 миллионов лет, что делает его одним из древнейших озёр в геологической истории.