Question

阅读下面短文，根据所读内容，在文章后第56—65小题的空格里填入一个最恰当的单词。注意：每个空格只填一个单词。

The main characteristic of a bird is feathers. No other animal has feathers. Other important features for birds are wings and hollow bones.

Birds fly by flapping their wings and using air pressure（压力）to create lift under their wings. Just like airplanes do. The peregrine falcon is one of the fastest birds. It can reach speeds of over 100 miles per hour when diving. Feathers are important to birds because they keep them warm, help them to fly, and provide camouflage（伪装）. Hollow bones also help in flying because they help make the bird light enough to fly.

Although an important characteristic of frost birds is flying. not all birds fly. Some birds that don't fly are penguins, kiwis and ostriches. Penguins actually spend much time in the water where they are swimmers. Ostriches on the other hand are very fast runners. An ostrich can outrun a horse!

There are all sizes of birds. Hummingbirds are some of the smallest birds, while ostriches are some of the biggest. Different types of birds eat different things. Some birds feed on plants, some birds eat insects. and still others eat other, animals like fish, snakes, mice or rats. Birds are also known for their migrating（迁徙）patterns to large groups. Some birds will travel tong instances each season to stay in a climate that is good for their survival. Birds are sometimes kept as pets. The most popular birds for pets are tropical (热带的) birds like parrots. Birds also have a history of helping out humans in different tasks. They can carry messages (homing pigeons) and help hunt (falcons).

Read more about birds.

An ostrich can run as fast as 43 miles per hour and grow as tall as 9 feet.

Blue birds can't see the colour blue.

The hummingbird can fly backwards, but it can't walk.

The egg of a kiwi can weigh as much, as 20% of the mother's body weight.

Birds
Features of birds	What makes birds 1. from other animals is feathers, wings and hollow bones.
How birds fly	Birds flap their wings and 2. air pressure to fly. Birds are light enough to fly 3. of hollow bones.
Not all birds fly	Penguins. are good at 4.. Ostriches are fast runners.
5. of birds	Hummingbirds are very small while ostriches are very big. Different birds eat different things. Plants, insects and other animals can be on the 6. of birds' food. Some birds travel 7. to find a better place to stay. Some birds are kept as 8. and some are trained as helpers.
Fun 9. about birds	An ostrich Stan run at a 10. of 43 miles per hour. Blue birds can't see blue and hummingbirds can't walk.

Answer

1.different

2.use

3.because

4.swimming

5.Types/Kinds

6.list

7.far

8.pets

9.facts/things/information

10.speed

【解析】

本文主要是对鸟类进行介绍，主要介绍了鸟类的特征，鸟类是如何飞行的，鸟的种类及有关鸟类的有趣的事。

1.根据第一段No other animal has feathers. Other important features for birds are wings and hollow bones.可知鸟类的特征也就是与其他动物的不同之处。different from 与…不同，故答案是different。

2.根据第二段Birds fly by flapping their wings and using air pressure（压力）to create lift under their wings.可知鸟类通过拍翅膀和使用压力腾飞，use 使用，动词，通过连词and与flap并列，故答案是use。

3.根据第二段Hollow bones also help in flying because they help make the bird light enough to fly.可知由于骨头是中空的，所以鸟类很轻，可以飞。because of因为，由于，介词短语，故答案是because。

4.根据第三段Penguins actually spend much time in the water where they are swimmers.可知企鹅擅长游泳。swim游泳，动词；be good at doing擅长于，故答案是swimming。

5.根据表格结构，可知这是第四段的主旨句。There are all sizes of birds/. Different types of birds eat different things.可知本段介绍各种各样的鸟，types/kinds of birds各种各样的鸟，首字母大写，故答案是Types/Kinds。

6.根据第四段Some birds feed on plants, some birds eat insects. and still others eat other, animals like fish, snakes, mice or rats.可知植物，昆虫和其他动物都是鸟类的食物。on the list of 在…..清单上，故答案是list。

7.根据第四段Some birds will travel tong instances each season to stay in a climate that is good for their survival.可知有些鸟飞到很远的地方去找更好的地方住。far 远地，故答案是far。

8.根据第四段Birds are sometimes kept as pets.可知有些鸟会被当成宠物，故答案是pets。

9.根据表格结构，可知这是对第五至第九段的总结，可知这几段是关于鸟的一些有趣的事，故答案是facts/things/information。

10.根据第六段An ostrich can run as fast as 43 miles per hour and grow as tall as 9 feet.可知鸵鸟能跑43英里每小时，长到9英尺高。at a speed of以多少的速度，故答案是speed。