If you get into the forest with your friends, stay with them always. If you don’t, you may get lost. If you really get lost, this is what you should do. Sit down and stay where you are. Don’t try to find your friends—let them find you by staying in one place.

　　There is another way to help your friends or other nearby people to find you. Give them a signal (信号) by shouting or whistling (吹口哨) three times. Any signal given three times is a call for help.

　　Keep up shouting or whistling always three times together. When people hear you, they will know that you are not just making noise for fun. They will let you know that they have heard your signal. They give you two shouts, two whistles, or two gun-shots (枪声). When someone gives you a signal, it is an answer to a call for help.

　　If you don’t think that you will get help before night comes, try to make a little house---cover up to the holes with branches (树枝) with lots of leaves. Make yourself a soft bed with leaves and grass.

　　What should you do if you get hungry or need drinking water? You would have to leave your little house to look for a river. Don’t just walk away. Pick off small branches and drop them as you walk so that you can find your way back. The most important thing to do when you are lost is—stay in one place.

1.If you lost in the forest, you should _______.

A. stay where you are and give signals three times

B. walk around the forest and shout so that your friends could hear you

C. try to find your friends as soon as possible

D. try to get out of the forest and shout for help

2.If you want to let people believe that you are not just making noise for fun, you should _____________.

A. tell people that you are lost?????

B. keep up shouting or whistling

C. shout at the top of your voice????

D. shout or whistle three times

3.When you hear two shouts, or whistles, or gunshots, __________.

A. you should shout more loudly??????

B. you can whistle three times

C. it is an answer to your call for help??

D. you should try to run to them

4.When you want to leave your place to get drinking water, you should ________.

A. just go to the river

B. find some glasses or bottles before you go

C. make a fire so that you can have some tea

D. leave marks so that you can find your way back

5.This passage mainly tells you __________.

A. when you hear a signal always three times, it is a call for help

B. What you should do if you get lost in a forest

C. any signal given twice means an answer to a call for help

D. how you can live longer in a forest

What is the sky？ Where is it？ How bright is it？ What lies above it？ These questions are difficult to answer, aren’t they？

　　Is the sky blue？ The sky has no color. We know that there is air around the world. When planes fly, they need air to lift their wings. Planes can’t fly very high because the air gets thinner when they go up higher. If we go up about 1,200 kilometers from the earth, we’ll find no air there.

　　When we talk about the sky, we usually mean the atmosphere around the earth. It is like a very thick “cover” over the earth and keeps it warm. Without the “cover”, the earth would be a very cold place and nothing could live on it.

　　Looking up above us, you will see the blue sky with white clouds. It is usually light blue, but the sky would be dark blue if you go to the top of the highest mountains. And you will see fewer clouds between you and the sun.

　　And if you sit in a spaceship high above the earth, there is no air at all. The sky would be so dark that its color would be black.

　　Sometimes the sky doesn’t look blue. When the sun rises and falls, you will see red, orange, and other colors in the sky. These are the most beautiful moments of the day.

　　Now you may understand that we see colors because the air scatters (散射) the sunlight. Light travels through the air. Without air, there would be no light and no colors.

1.Planes can’t fly very high because ____________.

A．there is air around the world

B．the air gets thinner when they go up higher

C．it’s warmer in the sky

D．the air gets thicker when they go up higher

2.We can see colors of the sky because ____________.

A．the sun rises and falls every day

B．the sky has lots of colors

C．the air scatters the sunlight

D．the sunlight has many colors

3.Which of the following is TRUE？

A．There is little air without light and colors in the sky.

B．The sky will look red, orange and other colors at noon.

C．The sky has only one color when the sun rises and falls.

D．The sky is dark blue if you go to the top of the highest mountains.

You may think there is only sand in the desert of the world, __1__ it is not true. In the desert, as we know, there is a little __2__, but it is not __3__ for most plants. Still we can see some plants __4__ in the desert.
　　There is __5__ in some places in the desert. We __6__ these places oases. In the oases, there are villages and towns. People grow __7__ kinds of crops in the fields there.
　　People __8__ live outside the oases. They have camels, sheep and other animals. These animals depend __9__ the desert plants for their food and do not need __10__ water.
　　The __11__ are useful to the desert people in many ways. They eat the meat and drink the milk of the animals. They use the camels for carrying water, food, tents and something else.
　　The people of the desert have to keep moving from place to place. They must always look  12   grass or desert plants for their animals. When there is no more food for their animals, they move to __13__ place. The desert people are __14__. No man in the desert would ever refuse __15__ the people in trouble and give them food and water.

　　1. A. and        B. but                   C. or                            D. so
　　2. A. rain        B. rains                 C. wind                 D. winds
　　3. A. good      B. good enough      C. enough good      D. enough
　　4. A. live        B. to live               C. lives                 D. lived
　　5. A. stones     B. plants                C. wood                D. water
　　6. A. say         B. tell                   C. call                   D. find
　　7. A. every     B. all                    C. a                      D. one
　　8. A. also        B. too                   C. either                D. still
　　9. A. with              B. in                            C. on                    D. by
　　10. A. a little  B. few                   C. much                D. any
　　11. A. water    B. plants                C. crops                D. animals
　　12. A. at         B. for                    C. up                    D. after
　　13. A. other    B. the other           C. the others          D. another
　　14. A. well     B. friend               C. friendly             D. carefully
　　15. A. help     B. helps                 C. helping             D. to help

　　There is a shy girl in our class. She is thirteen years old. She is not tall and she is not short. She is a little fat. Her face is round, like an apple. She has two big black eyes and a small nose. Her mouth is big, but her ears are small. Her hair is short and black. She likes the color red. But today she is wearing a yellow sweater, blue jeans and brown shoes. She dislikes getting up early, so she is usually late for school. She doesn't like to talk to others. She likes little animals. She has a little black dog. She and the dog are good friends.

　　根据短文内容及首字母提示，完成下列对话。

　　1. -How old is the girl?

　　   -She is t ________ years old.

　　2. -How tall is the girl?

　　  -She is m ________ height.

　　3. -What color is the girl's hair?

　　   -It is b ________.

　　4. -What is the girl's favorite color?

　　   -It is r________.

　　5. -What does the girl like?

　  　-She likes little a ________.

 There is little milk in the glass, _______?

　　A. isn’t it　B. isn’t there　　C. is there　　　D. is it