(C)

　　If you stop and think about it, you'll find that birds are amazing animals. Here are a few kinds of birds in the world.

　　The Smallest Birds

　　Hummingbirds(峰鸟) are the smallest of all birds. Some of the small birds are only two inches(英寸) long. Their eggs are about the size of jelly beans(软心豆粒糖). Hummingbirds are special in another way. They can hover as they drink flower honey from the inside of a flower. They can stay in one place without resting their feet on anything as they enjoy their meal. After finishing their meal, these birds will be back away from the flower. They are the only birds that can fly backwards.

　　The Fastest Bird

　　Some birds fly fast. A bird called " swift" is one of these birds. Swifts spend most of their time flying. They may be one of the fastest birds in the world. Some can fly more than 100 miles an hour. Peregrine falcons (游鹰) are another fast birds. They can fly down about 200 miles an hour.

　　Birds That Swim

　　Not all birds can fly. Penguins(企鹅) , for example, are great swimmers. They can swim at a speed of over 25 miles an hour and are the fastest birds that swim.

　　The Largest Bird

　　Ostriches(鸵鸟) are the largest birds living today. Although they can't fly, they are one of the fastest birds on land. Ostriches have the largest eyes of the animals that live on land. Their eggs are also the largest of all birds'. They are much bigger than chicken eggs.

　　(      )11. Hummingbirds are special because they are ________ and ________.

　　A. the smallest; eat the most       B. the fastest; can fly backwards

　　C. the largest; drink the least       D. the smallest; can fly backwards

　　(      )12. How far can peregrine falcons fly down in half an hour?

　　A. About 50 miles.  B. About 100 miles.  C. About 200 miles. D. About 150 miles.

　　(      )13. What does the underlined word "hover" mean?

　　A. Stay in the air in one place.     B. Jump from one place to another.

　　C. Fly away.          D. Fly up high.

　　(      )14. Which is TRUE according to the passage?

　　A. Swifts drink flower honey from the inside of a flower.

　　B. Hummingbirds spend most of their time flying.

　　C. Penguins are the fastest birds that swim.

　　D. Ostriches fly fastest on land.

　　(      )15. From t.he passage, we know that ________.

　　A. penguins' eyes are larger than ostriches'

　　B. ostriches' eggs are larger than swifts'

　　C. hummingbirds run faster than ostriches

　　D. swifts swim faster than penguins