读图，回答问题
（1）填出图中字母所表示的地理事物：
铁矿A：______； 油田C：______；
煤矿B：______； 河流D：______；
（2）该图所示国家是______，该国最大的港口城市是______．
（3）该国的主要河流大部分从南往北流，说明该国的地势特点是______．
（4）河流D的东侧的地形区是______．
（1）俄罗斯矿产资源丰富，图中A是库尔斯克铁矿，C是秋明油田，B是库兹巴斯煤矿；河流D是勒拿河，其自南向北流，注入北冰洋；
（2）根据国家轮廓图看出，其是俄罗斯，该国最大的港口城市是圣彼得堡；
（3）俄罗斯主要河流大部分从南往北流，说明该国的地势特点是南高北低；
（4）从图中看出，河流勒拿河东侧的地形区是东西伯利亚山地．
故答案为：（1）库尔斯克；秋明；库兹巴斯；勒拿河；（2）俄罗斯；圣彼得堡；（3）南高北低；（4）东西伯利亚山地．
| 完形填空。 Scientists are trying to make the desert into good land again. They want to bring 1 to the desert, so people can live and grow food. They are 2 a lot about the desert. But 3 of the earth is becoming desert all the time, scientists may not be able to 4 . the deserts. Scientists think that people make deserts. People are doing 5 things to the earth. Some places on the earth don't get 6 . But they still don't become deserts. This is _7 _ some green plants are growing there. Small green plants and grass are very 8 to dry places. Plants don't let the wind blow the earth away. When 9 _ bit of rain falls, the plants hold the water. 10 plants, the land can become a desert much more easily. | |||
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