单选题
下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断，如果该句提的是正确信息，请选择A；如果该句提的是错误信息，请选择B；如果该句的信息句的信息文中没有提及，请选择C。

Why is the Native Language Learnt So Well

How does it happen that children learn their mother tongue so well? When we compare them with adults learning a foreign language, we often find this interesting fact. A little child without knowledge or experience often succeeds in a complete mastery(精通) of the language. A grown-up person with fully developed mental powers, in most case, may end up with a faulty and inexact command(掌握). What accounts for this difference?
Despite other explanations, the real answer in my opinion lies partly in the child himself, partly in the behavior of the people around him. In the first place, the time of learning the mother tongue is the most favorable of all, namely, the first years of life. A child hears it spoken from morning till night and, what is more important, always in its genuine form, with the right pronunciation, right intonation, right use of words and right structure. He drinks in(吸收) all the words and expressions, which come to him in a flash, ever-bubbling(冒泡的) spring. There is no resistance: there is perfect assimilation.
Then the child has, as it were, private lessons all the year round, while an adult language-student has each week a limited number of hours, which he generally shares with others. The child has another advantage : he hears the language in all possible situations, always accompanied by the right kind of gestures and facial expressions. Here there is nothing unnatural, such as it is often found in language lessons in schools, when one talks about ice and snow in June or scorching heat in January. And what a child hears is generally what immediately interests him. Again and again, when his attempts at speech are successful, his desires are understood and fulfilled.
Finally, though a child's "teachers" may not have been trained in language teaching, their relations with him are always close and personal. They take great pains to make their lessons easy.

单选题 Compared with adults learning a foreign language, children learn their native language with ease.

【正确答案】 A

【答案解析】[解析] 关键词是with ease。依据此关键词，可在文中第一段找到相关叙述：A little child without knowledge or experience often succeeds in a complete mastery of the language. A grown-up person with fully developed mental powers, in most case, may end up with a faulty and inexact command.(一个没有知识和阅历的小孩可以熟练运用语言，而大多情况下，一个脑力健全成人学语言常会出错或不准确)，因此可推知，儿童学习母语比起成年人学习外语来说，学的要好的多，故此题为“正确”的。

单选题 Adults' knowledge and mental powers hinder their complete mastery of a foreign language.

【正确答案】 C

【答案解析】[解析] 关键词mental powers。依据此关键词在第一段的第三句中发现相关叙述：A grown-up person with fully developed mental powers, in most case, may end up with a faulty and inexact command.(在大多数的情况下一个脑力健全的成年人学习语言常会出错或不准确。)而该句的下一句引出的是成年人和儿童在学习语言方面不同的理由(第二段的段首句)，但原文中并没提到“成年人掌握外语的能力较差的原因”，故此题为“未提及”的。

单选题 The reason why children learn their mother tongue so well lies solely in their environment of learning.

单选题 Plenty of practice in listening during the first years of life partly ensures children's success of learning their mother tongue.

单选题 A child learning his native language has the advantage of having private lessons all the year round.

【正确答案】 B

【答案解析】[解析] 借助常识判断该句的说法不正确。关键词：all the year round，依据此关键词在第三段的第一句中发现直接相关句：Then the child has, as it were，private lessons all the year round，(儿童学习母语的优势好像是可以常年上私人辅导课。)比较原句和问题句的结构，发现不同之处在于“as it were”的结构。因为部分结构的差异往往是设置了陷阱。实际上，as it were的含义是“仿佛是”。所以原文说“仿佛是”，而问题句说“是”，所以判断问题句“不正确”，故此题为“错误”的。

单选题 Gestures and facial expressions may assist a child in mastering his native language.

【正确答案】 A

【答案解析】[解析] 关键词：Gestures and facial expressions，依据此关键词在第三段的第二句中发现直接相关句：The child has another advantage: he hears the language in all possible situations, always accompanied by the right kind of gestures and facial expressions.(儿童学习母语的另一个优势是可以接触各种情景的母语，而且母语中还伴随了正确的手势和面部表情。)可见原句的说法与问题句一致，故此题为“正确”的。