二、短篇阅读
Many people believe that children learn faster than adults, and new research suggests this may be true. Scientists say the reason may be related to something in the brain called GABA. It helps new information stay in the brain after learning.
Researchers have found GABA levels increase rapidly in the brains of children of primary school age while they are learning new tasks or information. However, GABA levels in the brains of adults don't change during or after lessons in new tasks and information.
Professor Takeo said the results show that children of primary school age can learn more than adults in the same period of time. Dr Sebastian from a German university also supported the findings. He explained that GABA plays an important role in making learning more efficient.
The researchers believe these findings are useful in two ways. First, teachers and parents should give children more chances to develop new skills, such as learning maths or riding a bike. Second, the study may help adults learn better in the future through new technology or treatments.
()1. Which shows how GABA levels change in children and adults while learning?

()2. What is the passage mainly about?

A.How GABA levels can be increased.
B.How adults can learn more efficiently.
C.Why children learn faster than adults.
D.Why GABA is important for learning.

1.A 2.C

【分析】
第1题需定位原文中儿童和成人学习时GABA水平的变化描述，匹配对应图表；第2题需梳理文章核心内容，确定主旨。
【解析】
1. 细节理解题：根据原文第二段，儿童学习新内容时GABA水平快速上升，成人学习时GABA水平无变化，对应选项A的图表，故选A。
2. 主旨大意题：文章围绕“儿童比成人学得快的原因（与GABA相关）”展开，核心是解释儿童学习更快的原因，对应选项C，故选C。
【答案】
1.A 2.C
【知识点】
阅读理解（细节理解）、阅读理解（主旨大意）
【点评】
本题考查英语阅读的细节定位和主旨归纳能力，需准确抓取原文关键信息，难度适中。
【难度系数】
0.6