The  1  is getting colder, and soon winter  2  shorter. We live in warm houses and we  3  thick coats when we go outside. But 4  do animals stay warm in winter?

Adapt(适应)

    Some animals keep  5  in winter, so they must adapt to the changing weather.  6  warm, they may grow new, thicker fur in  7 autumn.

Migrate(迁徙)

    Some of the animals migrate. That means they travel to other places  8  the weather is warm or they can find food.

Hibernate(冬眠)

    Some animals hibernate for part or  9  of the winter. These animals usually find a cave or a hole under the ground to spend their winter. The body temperature of the animals drops, their heart beats more slowly and they breathe  10  .

     Some inventions are very important. For example, the telephone allows people to communicate all over the world. The 1 lets people travel long distances in a short time. Life is much easier with these 2inventions.

     Some inventions are just fun. A company in Japan has invented3 flowers. You can listen to music that comes through real flowers. Customers in restaurants can smell the beautiful roses 4listen to pleasant music while eating. People in the dentist's office can look at pretty lilies and listen to Mozart while having their 5examined!

     There is now a vehicle that gets you around with almost no effort 6. In fact, you drive this invention while standing on it ! This vehicle runs by electricity. It 7 quite easily. When you lean forward, it moves forward, and when you lean 8, it moves backward!

     A new kind of bubble(气泡) liquid（液）has been invented. If you blow bubbles 9 this liquid, they can last for several minutes! 10 are very strong. You can even pick them up and throw them around!

     Do you have your own ideas about inventions now?

    When you hear the word "scientist", what do you think of it? Many people think scientists are people in clean white coats, working in labs( 实验室). Some scientists do work in labs. But there are 1 scientists working in woods and jungles(丛林).  These scientists are called " animal behaviour (行为) scientists", and they study animals as they live in nature. Why don't these scientists catch animals and study them in zoos? The 2 is in the word "behaviour". Animal behaviour scientists want to learn 3 animals behave in their wild homes. When animals live in cages or in zoos, they do not act 4 as they do in the wild. They may fight (打架) 5each other, or they may not eat, or they may not raise (抚养) their babies as they usually do. To see real animal behaviour, scientists must go to the places 6the animals live. So animal behavior scientists go into the jungles, the woods or the deserts. There, 7most important tools are their eyes and ears. They watch and listen to the animals very 8. They write down everything that happened in notebooks. Though they live near the animals, the scientists are careful not to frighten them. If the scientists are 9, the animals will pay no attention to them. Then the scientists can see how the animals really live.

    The animal behaviour scientists hope what they've learned about animal behaviour can provide clues(提供线索) 10people learn to live with animals together more happily.

    Many of us enjoy watching animals in the world. But do you know they can teach us?

    Geese(大雁), for example, teach a very good lesson about1  In the fall, Canada geese fly to the warm south to 2 Canada's cold winter. They lift off in no order. Yet3 they form a V shape, with one bird leading the group.

    This V shape allows geese to 4 energy(能量). When the front bird moves its wings up and down, the resulting force of the air lifts the next one. This continues down the line. The bird 5has the hardest job. When it gets 6 , it moves behind, and another bird moves into the lead. By sharing the role, the group can travel great distances (距离). Geese flying in a V shape can fly 70 percent farther without 7 than birds flying alone. During the long flying travel, geese communicate with one another. They honk(鸣叫)to 8 the birds up front to keep up the speed I (速度). They also ,cheer each other up 9working toward a common goal (目标).

    What have we learned from the lovely geese's experience and skills?10 together! Whether it is our personal lives or our jobs, we need other people. We need the spirit of teamwork!

    Many people like to see animals in the zoo. But do you know most of the animals in the zoo are very 1? Animals usually live in the forests or mountains. They like to live 2. But the life in the zoo is quite 3 from that in the forests and mountains. They have to stay in cages all day and wait for the zoo 4 to feed them. They can't come out of the cages. So they have to walk round and round.

    The wildlife park can solve all these 5 for them. All the animals live in the open air everywhere in the 6. They 7 stay in cages. They can run, jump and play with other animals happily. The most important thing is that they are free and happy, and they are protected there. People are not allowed to hunt in the wildlife park.

    Some of the animals in wildlife parks are friendly, but some are fearful, such as lions, wolves and tigers. But it's not dangerous 8 the animals in wildlife parks. You can take a bus to see the animals. It will be very 9 if a tiger or a bear looks at you through the window. But don't worry. 10 will happen. You are quite safe inside the bus.