Now a lot of people like to keep dogs as their pets．But do you know dogs were wild(野生的)animals long，long ago?

    The  1  wild dogs were trained by   2   in Europe about 10，000 years ago．These first“dogs”were not like  3  we have now．They may have been small wolves．These dogs often came near humans to  4  some food．Some of the young dogs were adopted(收养)by people and grew-up with them．

Humans believed the  5  were a help to them in many ways．The dogs helped them to hunt(狩猎)．They could smell and hear danger  6  people could．They helped to keep people    7  on cold night．So it was  8  to raise the dogs.

Now，there are many different kinds of dogs  9  they may look quite different from each other．Dog trainers think there are more than 400 different kinds in the world．The number keeps increasing with new kinds．

    Since those early days，humans and dogs have always been together，We should   10   them from now on because they are really our friends．

   1．A．whole     B，late       C．1ast      D．first

   2．A．wolves    B．eats       C．humans   D．students

   3．A．where     B．what      C．when     D．which

   4．A．serve      B．waste     C．make     D．steal

   5．A．cats       B．foxes      C．wolves   D．dogs

   6．A．when      B．after      C．before    D．as soon as

   7．A．cool       B．warm     C．hot       D．cold

   8．A．useful      B．useless    C．easy     D．hard

   9．A．so         B．and       C．but      D．although

   10．A．protect      B．kill       C．hurt     D．see

No family wants its home to catch fire, but it's good to plan for a fire just in case （以防万一）. Talk with your family about  36 to do if a fire starts.   37  should have a plan for getting out of the house. Be sure to choose a safe place to   38  after everyone gets away from the fire.

What should you do   39  there is a fire?  First,   40  people know about the fire. Yell （叫喊） the word "fire". Knock on the walls with your hands.

Then   41  the door of your room. If the door is warm, don't open it. If it's cool, open it just enough to  42 . If you see fire or much smoke, close the door fast.

If you can't see fire or smoke, you can go out of the door. Shut the  43  behind you. That will slow down the fire. Now find a   44 out. Stay away from the smoke. The air is the  45  near the floor. So it   46  be the safest to crawl（爬）when you leave the house.

If you can't leave your room,  close your door. Cover the crack （缝隙） under the door

  47   clothing. Then open the window or   48  the glass with a chair. Crawl out, of the window   49 .If the window is high off the ground,   50 jump! Wave a towel out of the window, and yell for help. When you get out of the house, run to the place where you and your family chose to meet.

It is often said that eyes can speak. Do you have such kind of 61 ? In a bus you may look at a stranger, but not too, 62. If he notices that he is being looked at, he may 63 uncomfortable. It is the same in daily life. When you are looked at for several more times, you will look 64 up and down in order to 65 if there is anything wrong with you. If 66 goes wrong, you will feel angry with the person who is looking at you. 67 can speak, right?
Looking too long at someone may seem to be impolite. But sometimes things are 68. If you wish to draw someone's 69 , you may look at him or her for more than ten seconds. For lovers, they enjoy looking at each other longer to show the love that words cannot 70 . Clearly, eye communication should be done according to the relationship
between the two people and the certain situation.

Do you like dogs? Do you know the following things about dogs?

The first pet dog

Dogs are meat-eating animals. They belonged to the family of wolves (狼) a long time ago. About 15,000 years ago, people started keeping wolves for hunting (狩猎). Over the time, the wolves began to look like dogs and they became people’s pets.

What a dog looks like

Dogs come in different sizes, colors and shapes, but they’re the same in some ways. All kinds of dogs have a set of forty-two strong teeth for eating. They have sharp claws (利爪) at the end of their feet for digging up soil (挖土) and holding onto the ground when they walk. They have very good eyesight(视力). They also have high ability (能力) to hear and smell.

How a dog grows

A mother dog gives birth to one to twelve babies at a time. New-born baby dogs cannot see or hear until they are two weeks old. The mother dog gives the baby dogs milk. When they are four weeks old, they start eating soft food. When they’re eight weeks, the baby dogs have very strong legs and they can go for long walks.

How to read a dog’s feelings

Dogs act differently when they have different feelings. When a dog is angry, it opens its mouth and shows its teeth. When a dog is frightened, it lowers its ears and holds its tail (尾巴) between its legs. A happy dog always wags (摇摆) its tail.

根据短文内容，选择最佳答案。（10分）

(　 )56. People have started keeping dogs as pets since 　　　.

A. there were humans　　

　　　 B. the wolves looked like dogs

C. there were wolves　　

　　　 D. 15,00 years ago

(　 )57. What can the sharp claws of dogs be used for according to the passage?

A. Climbing a tree.　　　

　　　 B. Looking for food.

　　　 C. Digging up soil.　　　

　　　 D. Fighting against other animals.　　　　　　

(　 )58. When does a dog start to eat soft food?

A. When it’s 2 weeks old.　

　　　 B. When it’s one month old.

　　　 C. When it’s 2 months old.

　　　 D. When it’s 8 months old.

(　 )59. What does a dog do when it is frightened?

A. It opens its mouth.　　　　

　　　 B. It shows its teeth.

C. It wags its tail.　　　　　

　　　 D. It holds its tail between its legs.

(　 )60. What does the passage mainly tell us?

A. Some facts about dogs.

　　　 B. The history of dogs.　　

C.Dogs come in different sizes

　　　 D. Dogs are human beings’ friends.