A lift is wonderful. It is really only a small room. Rooms usually stay in one place. Lifts travel up and down all day long.
Sometimes a worker stands in the lift. He or she operates it up and down. In modern lifts there is no worker. The people walk in. They know what floor they want. They push a button and the lift goes to that floor. It is all very fast and easy.
Lifts are very important to us. Why? Think about a tall building. Maybe it has twenty floors. Maybe it has fifty or more. Who can walk up all the stairs? Maybe people can climb them one time. Can someone climb thirty floors to an office every day? Can small children walk up to their room on the twenty-fourth floor? Can their mother and father carry food up all those stairs? Of course not.
We can have high buildings because we have lifts. We could not have all the beautiful tall buildings in the world without lifts. They are really wonderful.

1. 1.

   Which of the following is true?

   1. A.
      A modern lift has no buttons.
   2. B.
      A modern lift has a worker to operate it.
   3. C.
      A modern lift can go up and down with no worker in it.
   4. D.
      A modern lift knows what floor people want.
2. 2.

   If you want to go to the floor you want, you_______.

   1. A.
      ask for help
   2. B.
      open the door of the lift
   3. C.
      ring the bell
   4. D.
      push the right button
3. 3.

   Why do people have to use lifts? Because________.

   1. A.
      they have tall buildings
   2. B.
      they can't walk up and down
   3. C.
      old people and children need them
   4. D.
      lifts are wonderful

If you 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. You can help them find you by staying in one place. There is another way to help your friends or other people to find you. You can shout or whistle （吹口哨）three times. Stop. Then shout or whistle three times again. Any signal（信号）for 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 a noise for fun. They will let you know that they have heard your signal. They will give you two shouts or two whistles. When a signal is given twice, 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 with branches（树枝. Make yourself a bed with leaves and grass.
When you need some water, you have to leave your little branch house to look for it. Don’t just walk away. Pick off small branches and drop them as you walk in order to go back again easily. When you are lost, the most important thing to do is to stay in one place.
【小题1】If you get lost in the forest, you should___________.            

We know that many animals do not stay in one place. Birds,fish and other animals move from one place  to another at a certain time. They move for different reasons: most of them move to find food more easily,but others move to get away from places that are too crowded.

When cold weather comes,many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration（迁移）is probably the migration of the fish which is called “salmon”.This fish is born in fresh water but it travels many miles to salt water.There it spends its life. When it is old,it returns to its birthplace in fresh water. Then it gives birth and dies. In northern Europe, there is a kind of mouse. They leave their mountain homes when they bccome too crowded. They move down to the low land. Sometimes they move all the way the seadide,and many of them are killed when they fall into the sea.[来源:Zxxk.Com]

Recently, scientists have studied the migration of kind of lobster（龙虾）.Every year, when the season of the bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody know where they go.[来源:Z。xx。k.Com]

So,sometimes we know why humans and animals move from one place to another,but at other times we don’t. Maybe living things just like to travel.

1..Most animals move from one place to another at a certain time to _____

  A.give birth        B.enjoy warmer weather   C.find food more easily

2.The fish called “salmon”spends a long time in____

  A.salt water        B.rivers                 C.fresh water

3.The mice in northern Europe move when_____

  A.they give birth   B.the place gets too crowded

  C.they haven’t enough food

4. The lobsters move_______.

  A.to the fresh water   B.at a certain time  C.to find more food

5.What is the main idea of the passage?

  A.Animals move to find food more easily.

  B.The migration of the fish called“salmon”is the most famous migration.

  C.Sometimes we know why and how living things move from one place to another,but sometimes we don’t.