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.

阅读理解.

　　At Olney，a small town in England，Shrove Tuesday is Pancake Day．The race is said to first have been run there in 1445 and more or less ever since with occasional interruption as, for example, during the Second World War.

　　It is a race for women only. They must be housewives and live in the area．They have to cook a pancake in the air three times as they run. They have to wear aprons and cover their heads with a hat or a scarf. A bell rings twice for the women to start making their pancakes and then again for them to gather in the square, carrying their cooked pancakes in a frying pan. There they wait for the bell to ring again, and the race starts. Sometimes one of the pancakes drops on the ground, but the runner is allowed (允许) to pick it up. The winner and the runner-up both get a prize from the vicar who is waiting at the church door. The official, who helps to look after the church, gets a kiss from the winner and often her pancake as well. Then all the runners take their frying pans with the pancakes into the church and a short service is held．

　　The pancake race, with the women frying along, throwing and trying to catch their pancakes, provides(供给) a great deal of enjoyment and is frequently (时常地) shown on television in 1950, a similar pancake race was organized in Kansas, USA, and has continued(继续) ever since. It takes place on the same day, at exactly the same time. Times are clocked in both sides of the Atlantic and there is a close competition to see whether the British women or American housewives run faster.

根据短文内容，选择正确答案.

（1）It is believed that the pancake race ________.

［　　］

A．has been beld every year since 1445

B．dates back (回溯至) to the 15th century

C. originated in the 14th century

D．started after the Second World War

（2）The race is only open to women who ________.

［　　］

A．are staying in the area

B．got married in Olney

C．run a home in the area

D．were born in Olney

（3）During the race, the competitors have to ________.

［　　］

A．jump three times and catch a pancake

B．throw the pancakes to each other

C．throw some pancakes into a frying pan

D．throw and catch their pancakes

（4）When the race is over, all the runners ________.

［　　］

A．are given good prizes

B．serve pancakes in the church

C．go into the church to have a rest

D．take part in a service

（5）Since 1950, women in Kansas, USA, have ________.

［　　］

A．taken part in the Olney race

B．clocked up a Pancake Day record

C．competed against the Olney women

D．organized other Pancake Day activities