61. How long can most penguins go without food during breeding periods?

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60. How do penguins make use of their webbed feet?

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59. What do penguins do to move faster when they go downhill?

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58. Describe the way penguins walk on land.

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57. Describe the penguins' movements in the sea.　

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56. Are penguins able of fly?

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55. Name two species of penguins.

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54. The hills in Guilin ____________.　

　　　　 A. are not a pretty sight　

　　　　 B. have gentle slopes

　　　　 C. are of unusual shapes

　　　　 D. have rivers flowing from them

Comprehension OE (16 marks)

Read the passage carefully and answer the questions that follow.

　　 Unlike most of the fightless birds, penguins are skilled swimmers. Four of the best-known species are the Emperor, Adelie, Chinstrap and Rockhopper penguins. Penguins walk awkwardly on land. They walk with a clumsy waddle or a hop. To move faster, they slide on their bellies when they go downhill. However, penguins are graceful and move fast in the sea. They use their webbed feet as rudders to change direction. Their feet are also used as brakes. Most penguins do not eat at all times of the year. When they are breeding, they may go for weeks without feeding. For the Emperor species, they can last for months without eating. Before breeding, penguins feed constantly to build up a reserve of fat.

53. The 'Elephant Trunk Hill' mountain _____________.

　　　　 A. has an elephant trunk on it

　　　　 B. has an elephant tusk on it

　　　　 C. is the highest mountain

　　　　 D. has a steep side

52. There are hundreds of __________ in Guilin.

　　　　 A. river　　　　　　　　　　　　　 B. elephants' trunks　　

　　　　 C. mountains　　　　　　　　　　　 D. limestone