题干

科学技术是第一生产力,它改变了世界的面貌,改变了人们的生活.某校九年级(1)班同学进行“三次工业(科技)革命”的专题复习,邀请你全程参与。

表解历史

材料一

三次科技革命比较表3

项目

第一次工业革命

第二次工业革命

第三次科技革命

兴起时间

18世纪60年代

19世纪70年代

20世纪四五十年代

主要标志

蒸汽机的发明和广泛应用

A

原子能技术、航天技术、电子计算机的应用

进入时代

蒸汽时代

 电气时代

B

图释历史

材料二

学法运用

材料三  九年级(1)班安迪、王凯同学对工业革命的评价

安迪:“工业革命极大地改变了人们的生活条件,给人类带来了福音。”

王凯:“工业革命造成环境污染,给人类带来空前灾难。”

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    Newborns begin to develop language skills long before they begin speaking. And, compared to adults, they develop these skills more quickly. People have a hard time learning new languages as they grow older, but babies have the ability to learn any language easily.

    For a long time, scientists have tried to explain how such young children can learn the complicated grammatical rules and sounds of a language. Now, researchers are getting a better idea of what's happening in the brains of the tiniest language learners. This new information might help kids with learning problems as well as adults who want to learn new languages. It might even help scientists who are trying to design computers that can communicate like people do.

    Most babies go “ma ma” by 6 months of age, and most children speak in full sentences by age 3. For many years, scientists have wondered how the brains of young children figure out how to communicate using language. With help from new technologies, scientists are now finding that babies begin life with the ability to learn any language. They get into contact with other people, listen to what they say and watch their movements very closely. That is why they quickly master the languages they hear most often.

    Studies show that, up to about 6 months of age, babies can recognize all the sounds that make up all the languages in the world. Starting at around 6 months old a baby's brain focuses on the most common sounds it hears. Then, children begin responding only to the sounds of the language they hear the most.

    In a similar way older babies start recognizing the patterns that make up the rules of their native language. For example, English children who are about 18 months old start to figure out that words ending in “-ing” or “-ed” are usually verbs, and that verbs are action words.