There are four seasons in a year: spring, summer, autumn, and winter. Each season has (1)own charm and brings unique experiences to our lives.
Spring is like a gentle artist who comes after the long sleep of winter. When it comes, the weather gets (2)and warmer. Grass grows, and trees turn green. Colorful flowers bloom everywhere, making the world bright and beautiful. Bees and butterflies are busy (3)among the flowers. It's also a perfect time for outdoor activities. People take off their thick winter clothes and go for picnics in the park, fly kites in the open field, or plant trees (4)more green to the environment.
Summer arrives with hot sunshine. It is a season full (5)energy and enthusiasm.The sun shines brightly in the clear blue sky, making the days long and the night short. The beach is a popular place. People go (6), play beach volleyball, and enjoy the cool sea breeze. Summer is also the season for yummy fruits (7)watermelons and peaches.
Autumn brings cool air and a lot of changes. Leaves on the trees turn into beautiful shades of red, orange, and yellow, (8)a breathtaking views. Then they fall down from the branches, covering the ground like a colourful carpet. It's a harvest season. Farmers are busy gathering wheat, corn, and rice. The clear blue sky makes it perfect for outdoor walks.
Winter comes with cold winds, and sometimes snow. When it snows, everything is (9)in white. Children love making snowmen and having snowball fights. People stay inside, sit by the fireplace, drinking hot tea, and sharing stories. In (10), each season has its own beauty and value. They makes our lives more interesting and rich. We can enjoy different things in spring, summer, autumn, and winter.

(1) its
(2) warmer
(3) flying
(4) to add
(5) of
(6) swimming
(7) like
(8) creating
(9) covered
(10) short

1. (1) 此处需要用形容词性物主代词修饰名词own charm，it的形容词性物主代词是its。
2. (2) 比较级+and+比较级，表示“越来越……”，warm的比较级是warmer，所以这里填warmer。
3. (3) be busy doing sth.是固定搭配，意为“忙于做某事”，所以fly要用-ing形式flying。
4. (4) 这里用动词不定式表目的，即“为了给环境增添更多绿色”，所以填to add。
5. (5) be full of是固定短语，意为“充满”，所以填of。
6. (6) go swimming是固定短语，意为“去游泳”，所以填swimming。
7. (7) 这里表示举例，像西瓜和桃子这样的水果，用like。
8. (8) 这里用现在分词作结果状语，表示“创造了令人惊叹的景色”，所以填creating。
9. (9) 此处是一般现在时的被动语态，be covered in表示“被……覆盖”，所以填covered。
10. (10) in short是固定短语，意为“总之”，所以填short。

Our planet has many different ecosystems. Each one is special and important. Let's learn about deserts, wetlands, grasslands, forests, and oceans.
Deserts are very dry places. They don't get much (1). Even though deserts look empty, there are lots of amazing plants and animals (2) there. Cacti are one of them. They can store water in their thick stems to live in the dry desert. Camels can go a long time without water, so they are great for desert life.
Wetlands are areas where the ground is covered (3) water. They are like big sponges. Wetlands are really important for is covered. Many birds, fish, and frogs live in wetlands. You can see plants like reeds and water lilies there.
Grasslands are big (4) full of grass. There aren't many trees. They are often in the middle of continents. Grasslands are good places (5) animals that eat grass. Zebras, antelopes, and cows are some of these animals. They eat the grass, and then big animals like lions eat them.
Forests are full of trees and life. Tropical rainforests have a lot of different plants and animals. Orangutans can be seen in the rainforest, swinging from tree to tree. (6) birds also live there. Trees in the forest are very important because they take in carbon dioxide and give out (7), which we need to breathe.
Oceans are the biggest ecosystems on Earth. They cover over 70% of the Earth. Oceans have all kinds of sea animals, from small plankton to huge whales. Coral reefs in warm ocean waters are like underwater homes for many (8) and other sea creatures.
All these ecosystems are connected. If one changes, it can affect the others. For example, (9) down too many trees can make the soil (10) away. Then, it can be bad for wetlands and rivers. So, it's very important to protect these ecosystems. By doing this, we can keep our planet healthy and make sure all animals have a good home.

1. rain 2. living 3. with 4. fields 5. for 6. Colourful 7. oxygen 8. fish 9. cutting 10. washed

1. 考查名词。much修饰不可数名词，rain为不可数名词，填rain。
2. 考查非谓语动词。there be+名词+doing sth. 表示“有某物正在做某事”，填living。
3. 考查介词。be covered with“被……覆盖”，固定搭配，填with。
4. 考查名词复数。field为可数名词，由Grasslands可知用复数fields。
5. 考查介词。for“对于”，good places for animals“动物的好地方”，填for。
6. 考查形容词。修饰名词birds用形容词colourful“色彩鲜艳的”，填Colourful。
7. 考查名词。根据常识，树吸收二氧化碳释放氧气，oxygen“氧气”，不可数名词，填oxygen。
8. 考查名词复数。fish表示“鱼的条数”时单复数同形，many后接复数，填fish。
9. 考查非谓语动词。此处作主语，用动名词cutting，填cutting。
10. 考查非谓语动词。make sth. done“使某物被……”，soil与wash away为被动关系，填washed。