实现人与自然的和谐发展，下列措施最合理的是( )。 A．通过

搜题请搜索小程序“爱下问搜题”

问题单项选择题

实现人与自然的和谐发展，下列措施最合理的是( )。

A．通过生物技术手段，转化淀粉生产可再生能源
B．使用化学农药防治病虫害，保证粮食稳产
C．发展生态农业，实现物质和能量的多级利用
D．大力开垦湿地，扩大粮食种植面积

答案

参考答案：C

解析：本题考查生态系统的保护与利用。通过生物技术手段，转化淀粉生产可再生能源，将与养殖业争夺饲料；使用化学农药防治病虫害会带来环境的污染；大力开垦湿地将破坏生物的多样性，使生态系统的稳定性降低。故ABD三项措施都不符合可持续发展的要求。

阅读理解

阅读理解。

       Can you remember the day when you spoke your first word? If you can, you are unusual.
       Try to imagine what first few months of your life were like. I am sure you just spent most of your time
eating, sleeping and crying. As you grew older, you were awake more of the time. It took your parents more
time to play with you and talk to you. You watched and listened curiously (好奇). You began to know that
people made certain sounds to go with certain things.
       Then you began to try making the sounds you heard. And step by step you were able to make the right
sound for one thing.
       On that day you came to understand the secret of language. The secret is that a certain sound means a
certain thing. One sound might be as good as another. But it is no good as a word unless everybody agrees
on its meaning. Only when a group of people use the same set of sounds of things, can they understand each
other. Then, and only then do these people have a LANGUAGE.
       After you found the secret of language, you learned words. Some of the words meant things, such as
BOOKS, CHAIRS and SHOES. Some words meant doing things, such as GO and SWIM, and other words
describe things, such as GOOD and DIRTY. Soon you learned to put words together to express your idea,
such as "I want to go out and play with my friends." This is language. By means of language people can
communicate (交流). So we say languages are means of communication.