Life is like the four seasons.

When I was _______, it was spring of my life. I started going to school and I _______ many new things, too. There were happy days and sad days. Some days the sun _______ and some days it didn’t.

In my twenties, I had a good job. I was strong and happy. Then I married and had a _______. In those days I didn’t have much time to think or to play. Every day, I was busy and _______ hard. I started to have white hair. The summer of my life passed quickly.

Then the days got shorter. Leaves _______ from the trees. My child was a university student. My home was quieter. I started working more slowly. One day I stop _______. I retired(退休). I understood this was my autumn, a _______ time when the trees change color and give delicious _______.

But the days kept getting shorter and colder. Now my winter is coming. I’m older and weaker. I know I do not have many _______ left, but I will still enjoy them to the end.

There are twelve months and four seasons in a year in China. The______are spring, summer, autumn and winter.Usually each season lasts（持续）______months. Spring is warm.Summer is hot. Autumn is cool and winter is______.

We do different things in different seasons. In______, everything comes back to life（生命）.The plants turn______. We can go to the mountains. Summer is hot and______usually have a long holiday off school and go to the sea. They have many things to do on the______. There they can go______beach volleyball.______autumn farmers work on the farm.The______on the trees turn red. How delicious they are! The______turn yellow and fall off（掉落）the trees. The birds fly to the south. Winter comes______autumn. In the north of China, the weather is always______in many places. It is very cold,______children still enjoy making snowmen with their friends. Nature is beautiful all year round. Different people like different seasons.What is______favourite season?

Of the four seasons in a year ,most people like spring best .Do you sometimes_______it could be spring all year round ?Spring is nice ,but we really need_______seasons ,too .Then do you know_______we have seasons ?

The tilt of the earth causes (造成) the seasons. This means the earth is always “pointing” (指向) to one side when it moves .

We all know that it takes the earth one_______to go around the sun .At different times in the year,the Northern Pole (北极)is near to_______away from it .When it is pointing to the sun, the sunlight is straight hitting (直射) the northern hemisphere (北半球)._______the people in the northern part of the earth ,it is summer. Six months later, the Northern Pole points away from the Sun and winter_________._________these times of the year ,spring and autumn come .But not_______places have four seasons .For example ,countries near the equator (赤道) have mild (温和的) seasons. The temperature (温度) is almost________all year round.