The people living in Wenchuan county will never forget the day 12 May, 2008. Now, more than 10years on, the people in Wenchuan are living a     1    （good） life than before. Many live in new towns     2    people can live safely. The people will never forget those who     3    （rescue） them and helped them rebuild their home. Out of gratitude, many young adults have chosen to study medicine or join the army in a wish to help more people. Wenchuan has become a symbol of the Chinese spirit of never giving up.

The Earth is made up of three layers. In the centre is the core, which is as big as the Mars and has a high     1     of over 7,000˚C.     2     the core is a thick layer called the mantle,     3     lower part is solid rock,     4     portion is molten rock called the magma. Floating on top of the magma is the Earth’s rocky crust.

The crust is made up of tectonic plates. These huge plates are moved slowly by magma currents below, sliding past each other with     5    . If a plate is forced down     6     another and gets     7    , pressure will build up until the stressed rocks suddenly     8     apart, causing     9     ground movements called earthquakes. The point where the rocks suddenly jolt or break is called the epicentre, from which, powerful shock waves     10     out in all directions.

For a long time, our environment has been damaged because humans have been careless. Some people are concerned about increasing production p    1     rather than protecting nature.

As a c    2    ,they damage the Earth       3     (无意间)by building new channels in the sea and factories on the land, and by pouring chemical waste into rivers casually without p    4    

However, many people are p    5       in nature conservation. They argue that such immoral behavior may cause a c    6    .To achieve sustainable development, they have g    7     to stop overuse of natural resources. Besides, they have conducted various activities to s    8       public awareness of environmental protection.

In a word, humans can only win by t    9     the attitude towards nature. Only in this way can we realize our i    10     dream that everyone can enjoy healthy and happy lives without the environment around them suffering.