六、完形填空
You must know a popular song about Lake Baikal. Then what do you 1 about Lake Baikal?
Lake Baikal in Russia is one of the most 2 lakes in the world. It has a history of 25 million years. It's also the deepest freshwater lake in the world. It's up to 1,637 metres deep. 3, it's not only a lake but also a vast body of water holding nearly 20% of the fresh water in the world. The water is 4 clean that people can drink it directly(直接地).
Lake Baikal is in the 5 of a banana and people also think it looks like a crescent(月牙形) moon. Lake Baikal is beautiful and a lot of 6 come to visit it every year. They usually come in summer. It is not cold then. They can 7 the blue water and the green mountains. However, some visitors prefer to come in winter. 8 it is freezing, they can have fun on the ice. The ice can be up to 60 cm 9. They feel free to do whatever they like, without worrying about 10 into the water.
()1. A. worry B. dream C. care D. know
()2. A. common B. ancient C. difficult D. dangerous
()3. A. At first B. For example C. In fact D. At most
()4. A. so B. too C. such D. as
()5. A. shape B. place C. front D. control
()6. A. volunteers B. climbers C. tourists D. keepers
()7. A. enjoy B. repair C. copy D. develop
()8. A. Because of B. Even though C. So that D. What's more
()9. A. long B. large C. wide D. thick
()10. A. throwing B. cutting C. leading D. falling

1. D 2. B 3. C 4. A 5. A 6. C 7. A 8. B 9. D 10. D