If English means endless new words，difficult grammar and sometimes strange pronunciation，you are wrong.Haven’t you noticed that you have become smarter since you started to learn a language?
According to a new study by a British university，learning a second language can lead to an increase in your brain power，Researchers found that learning other languages changes grey matter.This is the area of the brain which processes information.It is similar to the way that exercise builds muscles.
The study also found the effect is greater，the younger people learn a second language.
A team led by Dr Andrea Mechelli，from University College London，took a group of Britons who only spoke English.They were compared with a group of“early bilinguals”who had learnt a second language before the age of five，as well as a number of later learners.
Scans showed that grey matter density（密度）in the brain was greater in bilinguals than in people without a second language.But the longer a person waited before mastering a new language，the smaller the difference.
“Our findings suggest that the structure of the brain is changed by the experience of learning a second language，”said the scientists.
It means that the change itself increases the ability to learn.
Professor Dylan Vaughan Jones of the University of Wales has researched the link between bilingualism and maths skills.“Having two languages gives you two windows on the world and makes the brain more flexible，”he said.“You are actually going beyond language and have a better understanding of different ideas.”
The findings were matched in a study of native Italian speakers who had learned English as a second language between the ages of 2 and 34.Reading，writing，and comprehension were all tested.The results showed，that the younger they started to learn，the better.“Studying a language means you get an entrance to another world，”explained the scientists.
The main subject talked about in this passage is（ ）.
主旨大意题。从第一段的句子：Haven’t you noticed that you have become smarter since you started to learn a language 可知文章讲述的正是学习另外一门语言可以让人更加聪明，可帮助提升脑力。故本题正确答案选A。
根据《中华人民共和国中国人民银行法》的规定，我国货币政策的最终目标是（ ），并以此促进经济增长。
箱子里面有红、白两种玻璃球，红球数比白球数的3倍多两个，每次从箱子里取出7个白球、15个红球。如果经过若干次以后，箱子里只剩下3个白球、53个红球，那么，箱子里原有红球比白球多多少个?
将自然数1~100分别写在完全相同的100张卡片上，然后打乱卡片，先后随机取出4张，问这4张先后取出的卡片上的数字呈增序的几率是多少？（）
对于债券利率的风险结构，描述正确的有（ ）。
市场经济体制下，财政具有的职能有( )。
货币制度最基本的内容是规定（ ）。
如果一国货币汇率上升，即对外升值，就可能会导致（ ）。
下列关于公司的表述，正确的是（）
以下各项列举了我国常见气象灾害与其发生地区的对应关系，其中正确的一项是（）
根据电视收视率调査，看体育节目的观众中青年人比中老年人要多。
由此可推断出（）
