B)Read the text and think of the word which best fits each space. Lake Baikal. Lake Baikal, known 1)_____ the “blue Eye of Siberia”, is located in south-east
Siberia near the Mongolian border. Not 2)_____ is it the world’s largest freshwater
lake holding almost 20% of all the fresh water on earth, 3)_____ is also the world’s
deepest and oldest lake. It has 30 islands, the largest 4)_____ being Olkhon Island.
Lake Baikal is famous for its crystal clear waters 5)_____ are rich with aquatic life.
The average temperature of the water is +4C, 6)_____ varies depending on
location and season. Recently scientists 7)_____ discovered thermal springs, which
may explain why the water is full of oxygen. Lake Baikal’s isolation has produced
one of the 8)______ varied and unusual collections of wildlife. Many of these
species are unique to the lake and found nowhere 9)_____ on earth. Lake Baikal is
home to some interesting 10)_____ inedible fish. Many of these consist of more
11)_____ 50% fat. The fact that Lake Baikal is millions 12)_____ years old leads
some scientists to believe that it 13)_____ not just be a lake, but the beginnings of
what will one day be an ocean.
Exercise 11.
