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Fire can help people in many ways． But it can also be very harmful (有害的)． Fire can keep your house  1  , give light and cook food ． But fire can burn things  2  ．Big fire can burn ,trees ,houses , animals or people ．

Nobody knows how people began to use fire ．But there are  3  ．interesting old stories about how a man or woman started a fire ．One is  4  a man ． The man  5  a very long time ago ． He went up the sun and  6  fire down．

Today people know how to make a fire with matches(火柴)． Children sometimes  7  to play with them ． But matches can be very dangerous． One match can burn a piece of paper． And  8   it could burn a house． A small fire can turn a big fire． very quickly． So you    9  be careful with matches．

Be careful with fire , and it will  10  you ．But if you aren’t careful with fire ． and it may hurt you．

1．A． warm 　　B． warmer 　　 C． cool 　　　　D． cooler

2．A． also 　　　B． too 　　　　C． either 　　　D．neither

3．A． many 　　B． much 　　　 C． little　 　　 D． no

4．A． over 　　 B． about 　　　 C． a little 　　 D． no

5．A． worked 　B． studied 　　　C．learned 　　 D． lived

6．A． bring　　 B． take 　　　　C． brought 　　D． took

7．A． enjoy 　　B． like 　　　　C．don‘t like 　　D． become

8．A． after 　　B． late 　　　　 C． yet 　　　 D．then

9．A ．can 　　 B． man 　　　　 C． will 　　　　D． must

10．A． help 　　B． do 　　　　　C． tell 　　　　D． hope

When you write a letter or make a telephone call, your words carry message（信息）. People talk with words. Do you think you can talk   1 words? A smile  2 your face shows you are happy and friendly. Tears（眼淚） in your eyes tell __3  that you are sad. When you put up your hand in class, the teacher knows you want to say something    4 ask questions. You shake（搖頭）your head, and people know you are saying “no”. You nod and people know you are saying   5 .

Other things can also give some information. For example, a sign at the bus stop helps you to know which bus   6 . A sign on the wall of your school helps you to find the library. Signs on doors tell you   7 to go. Do you find that there are a lot of signs   8  you and that you get messages from  them all the time? People can talk to each other  9 many other ways. An artist can use his pictures to tell about beautiful mountains, about the blue sea and many other things. Writers write books to   10 you about all wonderful things in the world and also about people and their ideas. Books, magazines, TVs and radios and films all help us to talk with other people. They all help us to know what is happening in the world.

In most of the world，many students help their schools make less pollution．They join “__1__”．In a meaningful（有意義的）club，people work together __2__ our environment clean．

Here are some things students often do．

No-garbage lunches．How much do you throw away __3__ lunch? Environment clubs ask students to bring their lunches in bags that can __4__ again．Every week，they will choose the classes that make the least garbage and report them to the whole school．

No-car day．On a no-car day，__5__ comes to school in a car．Neither the students nor the teachers! Cars give pollution to the air．__6__ remember：Walk，jump，bike or run．Use your legs! It' s lots of fun．

__7__ the watery Did you know that some toilets could __8__ twenty to forty cubic（立方的）meters of water an hour? In a year，to your __9__，that would fill a small river! In environment clubs，students repair those broken toilets __10__．

We love our environment，Let's work together and make it clean．

1．A．no-car day                                        B．environment clubs

C．new music groups                                 D．no-garbage lunches

2．A．make                     B．making             C．to make                D．will make

3．A．since                     B．until             C．before                 D．after

4．A．use                       B．be used              C．throw                   D．be thrown

5．A．somebody           B．anybody            C．everybody         D．nobody

6．A．So                       B．And                  C．But                   D．Or

7．A．Turn on                  B．Turn up              C．Turn off            D．Turn down

8．A．waste               B．give                 C．keep                     D．throw

9．A．surprise                B．surprised           C．surprising             D．surprisingly

10．A．their                  B．they               C．them                  D．themselves