随着全球肉类产量的进一步增加，畜牧业对全球温室效应的影响也会增长。目前，畜牧业用地已经占到地球土地总面积的30%，作为农业增长最为迅速的一个门类，畜牧业还会占用更多的土地用来生产饲料和放牧。在拉丁美洲，为给牧场腾出空间，已经有70%的森林遭到砍伐。目前畜牧业对全球825个陆地生态区中的306个造成了威胁，并且威胁到1699个濒危物种。 这段文字意在说明( )。
A．发展畜牧业的环境代价
B．应严格控制畜牧业发展
C．畜牧业发展面临的瓶颈
D．畜牧业造成的污染严重
参考答案：A
解析： 本段文字主要介绍了畜牧业的发展所带来的影响：温室效应、森林遭砍伐、生态破坏、威胁濒危物种，这些都是畜牧业发展的环境代价。选项B文中未提到，选项C与文意相反，选项D只是文段提到的部分内容。故本题选A。
| The first and most important agents of socialization are the people who care for infants. In the earliest months, messages from nurturers constitute the child’s basic understanding of the world around it. This is the infant’s first introduction to the language that shapes perception and elicits emotion. Another powerful source of information and socialization is the friendship of peers. Peers are equals that one can deal with on the same level as oneself, whereas parents are superiors. The heavy emotional overlay of family relationships makes some kinds of learning difficult. Much formal socialization is placed in the hands of professionals. Teachers from kindergarten on are specifically designated agents of socialization. Ideally, a teacher is one who has both knowledge and the skills to present it. During the course of teaching their subjects, classroom instructors provide role models and attempt to convey the excitement of learning itself. In earlier times, parents, friends and teachers would comprise the list of primary childhood socializers. Children’s books, comics and magazines might also have been mentioned as sources of information on norms and role models. Today one must add three powerful indirect or nonpersonal socialization agents: radio, movies and television. Many people learn about politics, form a vision of well-being, and develop attitudes towards others from what they see on the screen and hear through the speakers. |
Which of the following statements is NOT true
A．Language shapes an infant’s perception.
B．Language elicits an infant’s emotions.
C．Language forms an infant’s cultural awareness.
D．Language forms an infant’s basic understanding.