of the brain are billions of tiny nerve cells，called neurons.The nerve cells have branches connecting them to other cells in a complicated network.Communication between these brain cells is what allows us to think and solve problems.When you learn new things，these tiny connections in the brain actually multiply and get stronger.The more you challenge your mind to learn，the more your brain cells grow.Then，things that you once found very hard or even impossible to do—like speaking a foreign language or doing algebra (代数)—seem to become easy after learning them for a period of time.The result is a stronger，smarter brain.

　　Scientists started thinking that the human brain could develop and change when they studied animals’ brains.They found out that animals that lived in a challenging environment were more “perspicacious”—they were better at solving problems and learning new things.

　　6. According to the first paragraph，________.

　　A．the function of our brain is like that of the muscle

　　B．until now it’s impossible to explain the brain’s mystery

　　C．many people believe one’s intelligence is naturally determined

　　D．one’s brain grows stronger as the age increases

　　7．Training muscles is compared to________.

　　A．using the brain

　　B．connecting things in your brain

【2015届高考英语一轮专项复习训练 25】相关文章：

★ 2016届高考英语二轮复习特色专项训练：第1部分 题型重组 第11组（全国卷Ⅱ）

★ 2016届高考英语二轮复习专项训练：专题限时检测（21）阅读理解主旨大意类之全文大意题与段落大意题

★ 2016届高考英语二轮复习攻关篇专题训练：题型1 阅读理解2.2.7（新课标全国通用）

★ 2016届高考英语二轮复习分项训练（通用版）： 第1部分 专题3语法填空和短文改错 8专题针对训练（含答案）

★ 2015届高考英语一轮专项复习训练 5

★ 2016届高考英语二轮复习特色专项训练：第1部分 题型重组 第15组（全国卷Ⅱ）

★ 2016届高考英语二轮复习专项训练：专题限时检测（12）完形填空之夹叙夹议文体（1）

★ 2016届高考英语二轮复习攻关篇专题训练：题型1 阅读理解2.2.6（新课标全国通用）

★ 2016届高考英语二轮复习专项训练：专题限时检测（9）情景交际

★ 2016届高考英语二轮复习针对训练：专题4 语法填空和短文改错 第3讲 语法专题 8 名词性从句（通用版）