提示:1)树可以为我们提供很多有用的东西,如水果、药品、木材等;2)树可以为人类提供氧气,净化空气,美化环境;3)树可以为动物提供家园和足够的食物,保持大自然的平衡(the balance of nature);4)树能够防止水土流失和土地变成沙漠(desert)。
The uses of trees
For humans, trees have a lot of uses.
Tree help us a lot. They are major fighters against air pollution. They take in harmful gas and produce oxygen. Tree also make our lives very convenient. Look around you house, and you'll find a lot of the furniture is made of wood. Every Part of the tree-the leaf, the branch, and the root is very useful. For example, children like making leaf painting and artists use branches to make beautiful works of art.
However, people cut down millions of trees every year. We should do something to sop that. But what should we do?Some experts give us advice.
①Tell people to save trees.
You can share your love for trees with other people. In fact many people don't realize how important tree are to us. The more people who know that, the fewer trees they will cut down.
②Change your habits.
You can use fewer paper cups issues and disposable chopsticks. They are made of wood.
③Pant a tree on Tree Planting Day every year.
You can plant tree in parks, hills, mountains o just on either side of roads. If you really care about saving trees, you'll feel happy when you dig holes, carry small trees and water them.
L are very ugly and kind of dangerous.

They the journey a.
The fruit bat(果蝠), also known as the "flying fox(狐狸)", got its name because it has large eyes and looks like a fox. There are many kinds of fruit bats and they are different in size from one place to the next. For example, some fruit bats are no more than two inches long. Others, though, are more than 16 inches in length.
Flying foxes have pointed teeth. Most people have been taught that the teeth are for a meat-eating animal. However, they only eat flowers and fruit. When feeding on fruit, they drink the juice.
Flying foxes have difficulty getting into the air if they fall on the ground, so they feed on fruit on the trees and will not follow a meal if it drops to the ground. They get their water by flying over rivers and lakes without having to land.
Flying foxes are found in Australia. Living in large groups, they sometimes gather(聚集)by the tens of thousands in rainforests and near rivers. Like most bats, they rest by hanging upside-down, and sleep during the day and feed at night. They may have to travel for long distances during certain(某些的)times of the year in order to find food. They will make the journey back to their home, though, before the Sun comes up. Unlike most bats, this flying animal uses its sight but not echolocation(回声定位)to look for food.
The flying fox plays an important role in pollination(传粉)in Australia, and its droppings help with the spread(传播)of seeds. However, many farmers in Australia prefer to cover their fruits so, that the bats would not destroy(损坏)them.
—I guess it's very expensive.
—Yes. There is one near the cinema over there.
— For about two hours.
Li Xin is his pet now.