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杀虫止痒可用的药物是()E．
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SECTION B PASSAGES
Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.
听力原文： When we think of communication, we normally think of using words talking face-to-face, writing messages and so on. But in fact we communicate far more in other ways. Our eyes and facial expressions usually tell the truth even when our words do not.
Then there are gestures, often unconscious: raising the eyebrows, rubbing the nose, shrugging the shoulders, tapping the fingers, nodding and shaking the head. There is also the even more subtle "body language" of posture: are you sitting or standing with arms or legs crossed.'？ Is that person standing with hands in pockets, held in front of the body or hidden behind？ Even the way we dress and the colors we wear communicate things to others.
So. do animals communicate？ Not in words, although a parrot might be trained to repeat words and phrases which it doesn't understand. But as we have learnt, there is more to communicate than words. Take dogs for example. They bare their teeth to warn, wag their tails to welcome and stand firm, with hair erect, to challenge. These signals are surely the canine equivalent of the human body language of facial expression, gesture and posture.
What are the ways animals communicate？
Geography is the study of the relationship between people and the land. Geographers compare and contrast【C1】______ places on the earth. But they also【C2】______ beyond the individual places and consider the earth as a【C3】______ The word geography【C4】______ from two Greek words, ge, the Greek word for "earth" and graphein,【C5】______ means "to write". The English word geography means "to describe the earth"【C6】______ geography books focus on a small area【C7】______ a town or city. Others deal with a state, a region, a nation, or an【C8】______ continent. Many geography books deal with the whole earth. Another【C9】______ to divide the study of【C10】______ is to distinguish between physical geography and cultural geography. The former focuses on the natural world; the【C11】______ starts with human beings and【C12】______ how human beings and their environment act【C13】______ each other. But when geography is considered as a single subject,【C14】______ branch can neglect the other.
A geographer might be described【C15】______ one who observes, records, and explains the【C16】______ between places. If places【C17】______ alike, them would be little need for geographers.
We know, however,【C18】______ no two places are exactly the same. Geography,【C19】______ , is a point of view, a special way of【C20】______ at places.
【C1】
断肢再植（）E．
矿山粉尘是矿井在建设和生产过程中所产生的各种岩矿微粒的总称。矿山生产的主要环节如采矿、掘进、运输、提升的几乎所有作业工序都不同程度地产生粉尘。采掘机械化和开采强度、采矿方法、作业地点的通风状况、地质构造及煤层赋存条件都是影响粉尘产生的因素。下列各项中有关粉尘的性质说法正确的有()。
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