及时地 句意：科学家们可能不能及时地改变沙漠。附赠文章原文：Scientists are trying to make the deserts（沙漠）into good land again.They want to bring water to the deserts,so people can live and grow food.They are learning a lot about the deserts.But more and more of the earth ...
parts of the earth only a few unusual plants can grow. That's why dry deserts(沙漠) are almost not covered by trees or grass.Plants must also have a place in which to put down their roots and grow. They find it difficult to grow in hard land! The town is built on hard land. The...
Some places on the earth don't get very much rain. However, they still don't become deserts. This is because there are some green plants growing there. Small green plants and grass are very important to dry places. Plants don't let the hot sun make the earth even ...
Each of these steps will lead you on a journey to a happier and more rewarding work life. After all, it is the journey, not the destination, that is most important. According to the recent "Plans for 2004" survey, most people are unhappy with their current jobs. Some teachers of ...
To grow, plants need some things. One is warmth. In very cold places, almost nothing grows. Plants also need water. In very dry parts of the Earth, only a few unusual plants can grow. That's why dry deserts(沙漠)almost don't have trees or grass.Plants must also have a place in ...
Why does Earth have plate tectonics and continents? Why are coastal deserts important? Why is barrier island stratigraphy important? Why is the soil of Kathmandu Valley fertile? Why is geology important to the study of natural history? Why do young fold mountains have high peaks?
Deserts are becoming larger because the Earth's climate (气候)changes a lot.As a (6)r esult,growing plants in the desert will be more and more important.Although it is dangerous to eat this plant,scientists can still study something about it:how it takes up CO2 at ni...
Why is it important to preserve archaeological sites? Why is superposition important? Why are basalt and granite important igneous rocks? Why is stratigraphy important? Why are coastal deserts important? Why are surface currents important? Why are cast fossils important?
not become deserts. This is because some green plants are growing there. Smallgreen plants and grass are very important to dry places. Plants do not let the hot sun make the earth even drier. Plants do not let the wind blow the soil away. (2)When a little bit of rain falls, the ...
People are doing bad things to the earth. Some places on the earth don’t get much rain. But they still don’t become deserts. This is because some green plants are growing there. Small green plants and grass are very important to dry places. Plants don’t let the hot sun make the ...