2007年11月13日 星期二

Birds and Aeroplane

There are many similarities and differences between birds and aeroplane.

The similarities are :

1. An airplane speeds down a runway so that air will move quickly over its wings to create lift, while some birds run to gain enough speed to lift off. Other birds do not need to run for takeoff. They flap their wings quickly to create lift.

2. They can fly

3. They use wings to help them fly

4. They use their tails to balance themselves when flying

The differences between them :

1. The aeroplane needs somebody to control or so called move or fly them while the bird can control and move on its own

2.An aeroplane is man- made while the birds are living things

3.The aeroplane can carry people to their destination while the birds cannot

4.The birds reproduce while the aeroplane could not

That is about all.Thank you and goodbye

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