3. 沙漠化
[2./图表描述段]As is shown in the picture, we can see clearly the relation ship between people and desert. In the left hand picture, people are fleeing from greedy sand hills because they cut down all the trees. The caption reads, As the sand advances, we retreat. In the right hand picture, the people have returned carrying tools, water, and young trees to plant the land again. The caption reads: As we advance, the sand retreats.
[5.意义阐述段]It seems to me that the cartoonist is sending a message about the importance of trees in water and soil conservation and the need for everyone to fight against the danger of the desertification. In fact, what he is saying is that the sand hills will drive away from the land if we do fight against the sand. If we let this situation continue as it is , our environment will suffer a great destruction.
[10.建议措施段]The best way to fight back against the greedy desert in made clear in the second picture. There the local people are actively setting about the task of planting trees to reclaim the land and make it fertile. The fact that there are three people in the picture, each with a different job suggests that working together is the key to success in the battle against soil erosion.
独立主格用法详解
由with或without 引导的独立主格结构
由“名词(代词)+副词”构成的独立主格
独立主格用作伴随状语
现在完成时用法详说
独立主格结构中的非谓语动词用法
几种将来时间表示法的比较
过去将来时的用法说明
分词作定语
使用独立主格结构的几点注意
由“名词(代词)+名词”构成的独立主格
时态详解:一般将来时
由“名词(代词)+不定式”构成的独立主格
由“名词(代词)+过去分词”构成的独立主格
关于分词的独立主格结构
过去完成时与一般过去时的区别
将来完成时用法解说
一般现在时表过去的用法
现在完成进行时与现在完成时的区别
由“名词(代词)+介词短语”构成的独立主格
独立主格用作原因状语
独立主格结构的用法说明与注意点
独立主格
一般现在时基本用法
从一道高考题看独立主格结构的用法
一般将来时用法说明
过去进行时用法五注意
With的复合结构作独立主格
由“名词(代词)+现在分词”构成的独立主格
一般现在时表将来的规律
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