补全短文。（共10小题；每小题1分，计10分）
用方框内所给单词的适当形式填空，使短文完整、通顺。

thousand,  many,  change,  help,  make, in,  close,  they,  also,  little

Saving electricity and water is important in our life. There are 【小题1】　　　　 little things for us to do at home to help save the Earth. They’re small, but  【小题2】　　　　 of people do the same thing and  【小题3】　　　　 a great difference. By making some small 【小题4】　 　 to the way you do things at home, you are helping our planet day by day.
You can spend 【小题5】　　　　 and improve your health better at the same time, so
【小题6】　　　　 to save the environment is a good exercise!
You can use windows to make the house good to live in. You can keep windows and doors 【小题7】　　　　 to keep the house warm in winter and open in summer. The wind will often keep you as cool as 【小题8】　　　　 the open air.
And you must do something to save water. The water that you use in the kitchen can
【小题9】　　　　 be used to wash the rice or water the flowers, and it’s very good for 【小题10】　　　　. Please always remember to turn off the lights when you leave.

One Friday night, a poor young man stood at the train station. He played his violin and many people put 41  into the hat in front of him.　　
The next day, the young man came to the station 42  . But this time he took out a large piece of paper 43 some words on it. It said “Last night a lady 44  Mrs Sang put an important thing into my hat 45  . Please come for it.”　　
After about an hour, a middle-aged woman ran to the young man in a hurry and said, “You do come here. I know that you’re a(n) 46  man and will certainly come here.” They had a talk and the young man made sure she was the owner. Then he took out a lottery ticket and 47  it to the woman. Her husband bought a lottery ticket every day. Yesterday when she knew the lottery ticket he bought won, she was very 48  . The prize of the lottery ticket was $ 500,000. When she walked past the young man, she took out $50 and put it in the hat. 49  , the lottery ticket was also thrown in.　　
Later, someone asked the young man, “You play the violin every day to make money. Why didn’t you just take the prize of the lottery ticket for yourself?” the young man said，“Although I don’t have much money, I live happily. But if I 50  honesty, I won’t be happy forever.”　　
【小题1】 A. money       B. tickets          C. paper　　
【小题2】 A. instead       B. differently      C. again　　
【小题3】 A. for          B. with           C. over　　
【小题4】 A. introduced     B. spelled         C. named　　
【小题5】 A. by mistake     B. for mistake      C. on mistake　　
【小题6】 A. crazy         B. cool        C. honest　　
【小题7】 A. gave          B. lent            C. offered　　
【小题8】 A. surprising       B. happy         C. exciting　　
【小题9】 A. But            B. However      C. Therefore　　
【小题10】 A. have            B. win             C. lose　　

What do you do if you're stranded（处于困境的）on a lonely island? Surely you need to find a way to get in touch with the outside world. Your best chance of doing this is to draw the attention of a passing plane.
　　Body signals（信号）
　　Pilots from different countries understand body signals if they have the correct training. When you wave your arms up and down in a straight line, it means "yes". When you point downwards and swing your arm from side to side, it means "no". If you want the pilot to know that it's safe to land, push your hands out in front of you and bend（弯曲）your knees. If you want to say that it's not safe to land, put your arms in the air and move them to one side.
　　Smoke signals
　　The smoke from a fire can be seen from far away, so it's a good way to draw attention. If the weather is dry, it isn't hard to start a fire. Remember, however, that fires can be very dangerous if they get out of control. Never light a fire unless you're sure that it can't spread. If the ground is dark, light smoke can be seen more easily. Green grass and leaves produce light smoke.
　　Ground-to-air signals
　　It's a good idea to build some signals, too. Use large pieces of wood to make the symbols(标记). If you can't find any wood, use earth. Some useful symbols are:
　　F "I need food and water."
　　II "I need medicine."
　　I "I am badly hurt."
　　X" I am unable to move from here."
　　Pilots' replies
　　If the pilot lowers the plane's wings from side to side, this means "message received and understood". (At night, the pilot flashes the plane's green lights.) If the pilots flies the plane in a clockwise circle, this means "message received but not understood".(At night, the pilot flashes the plane's red lights.)
However, there is no signal which means "message not received". Why not?
【小题1】 Which picture means "it's not safe land"?

　
【小题2】 What can we learn from the passage?

A．Swinging your arm from side to side means "yes".

B．If the ground is dark, light smoke can't be seen.

C．If you need some medicine, make a symbol "II".

D．The pilots make replies with a blue light at night.

　　【小题3】 What is the passage mainly about?

A．The explanation of building signals on an island.

B．The importance of making signals on an island.

C．Ways of sending out signals on a lonely island.

D．Ways of receiving signals from a lonely island