A desert is a very dry land where there is hardly any rain. In the day, it can be so hot that you could fry an egg on the ground. But during the night it is sometimes so could that water would turn into ice.

Many desserts are covered in sand. But some have mountains, rocks, or lakes that have dried up in the heat. The Great American Dessert has cliffs(悬崖) that have been made into amazing and beautiful shapes by the wind. The Sahara Desert in Africa is mostly sand. The Australian Desert has red sand.

Sometimes it does not rain for a whole year in the desert. But there is water deep under the ground and some plants have roots that go very deep to find it. Other plants have roots that spread out(延伸) a long way so they can suck up the rain as soon as it falls.

One desert plant is the cactus, which has long, spreading roots. The cactus stores water inside its hard skin. This skin protects it from heat and cold.

Camels are a bit like cactus plants! They store water too—inside their bodies. They have special fur which protects them from the sun during the day and keeps them warm at night.

Some other animals live in deserts, too. They have to be very good at seeing and hearing because most of them only come out at night. This is why many desert animals have extra big eyes or ears.

A desert fox has bigger ears than a normal for. A gerbil has huge eye, so that it can see at night. It stays cool in the day by staying underground, like most desert animals.

Some people live in the desert but they always make their homes near an oasis. An oasis is where water comes from an underground river. Near an oasis, people can grow lots of plants and keep animals.

Life is hard in the desert, for people, animals and plants. But desert people like to live there.

46.A desert is very dry because__________.

A. it is sandy　　　　　　　 B. there is so little rain

C. the wind is strong　 D. there is no water deep under the ground

47.What does the underlined phrase"suck up"in paragraph 3 mean_________?

A.围堵　　 　 B.讨好　　 C. 释放　 D.吸收

48.Some desert animals have extra big eyes or ears because__________.

A.the sunlight is too strong in the day　 B.they need to see and hear well at night

C.it is very cold at nigh　　　　　　　　　　　　　 D.they store water in them.

49.Most desert animals stay cool in the day by_________.

A.storing water in side their bodies　　　 B.drinking water as much as they can

C.staying underground　　　　　　　　　　　　　 D.growing lots of plants

50.Which of the following is true?

A.Desert people like to live in the desert though life is hard.

B.People in the desert usually fry eggs on the ground.

C.Camels have special fur to store water.

D.All the deserts are covered in sand.

--- ________ have you read Gone with the Wind?

--- Three times.

[　　]

They spent five days in the wind and snow, ________.

[　　]

完形填空

通读下面短文，掌握其大意.然后从短文后各题所给的四个选项中选择最佳的一项.

　When you go to the seaside（海边）, maybe you will 　1　 that the wind very often comes from the sea to the early part of the day, but in the evening the wind blows in the opposite direction（相反方向）. Why does this happen?

　In the morning, when the sun 　2 　it begins to warm the land 　3　 the sea. The land 　4　 warm faster than the sea, so while the air above the sea is cool, the air over the land 　5 　warmer. The air 　6　 the land rises and the cool air from the sea moves 　7 　the land.

　When evening comes, 　8 　the sea and the land become cool, but the land cools more 　9 　than the sea. The wind now changes 　10 　direction.