问题 解答题

下面这幅漫画题目是《越卖胆越大》.根据漫画回答问题:

(1)你很熟悉他们所捕捉的动物吧.请你写出图中A或D动物所属类群的主要特征.______

(2)这四种动物的共同特征是______.

(3)请你简要说明图中人类的行为对生物圈会造成哪些影响?______.

答案

(1)图中A动物为青蛙,具有体温不恒定;卵生,幼体在水中生活,用鳃呼吸,成体既能在水中生活,也能在陆上生活,用肺呼吸,皮肤裸露而湿润,具有辅助呼吸功能属于两栖动物;B为蛇属于爬行动物;C为鸟类;D是老虎,具有胎生哺乳等特征属于哺乳动物.

(2)青蛙、蛇、鸟和老虎的背部有脊椎骨组成的脊柱,称为脊椎动物.

(3)动物在自然界中作为消费者参与物质循环,但近年来,人类对野生动物滥捕滥杀,造成某些动物种类和数量减少,破坏了生态平衡.

故答案为:(1).如两栖类特征要点:幼体生活在水中,用鳃呼吸;成体营水陆两栖生活,用肺呼吸,同时用皮肤辅助呼吸.(只要正确答出A或D动物所属类群的主要特征即可);哺乳类特征要点:体表被毛;胎生、哺乳.

(2)要点:有脊柱(答出有脊柱和肺也可)

(3)开放性试题,回答正确即可.要点:人类对野生动物滥捕滥杀,造成某些动物种类和数量减少,最终会破坏生态平衡.

填空题

Some consumer researchers distinguish_____(1) "rational" motives and "emotional" (or "non-rational") motives. They use the term "rationality"_____(2) the traditional economic sense that assumes_____(3) consumers behave rationally when they carefully consider all alternatives_____(4) choose those that give them the greatest utility (i.e., satisfaction). _____(5) a marketing context, the term "rationality" implies that the consumer selects goods based_____(6) totally objective criteria, such_____(7) size, weight, price, and so on. "Emotional" motives imply the selection of goods____(8) to personal or subjective criteria — the desire_____(9) individuality, pride, fear, affection or status.The assumption underlying this distinction is____(10) subjective or emotional criteria do not maximize utility or satisfaction. _____ (11), it is reasonable to assume that consumers always attempt to select alternatives that, ____(12) their view, serve to maximize satisfaction. Obviously, the assessment of satisfaction is a very personal process, based_____(13) the individual’’s own needs as_____(14) as on past behavioral, social, and learning experiences. What may appear_____(15) irrational to an outside observer may be perfectly rational ______(16) the context of the consumer’’s own psychological field. For example, a product purchased to enhance one’’s self-image (such as a fragrance) is a perfectly rational form of consumer behavior. ____(17) behavior did not appear rational to the person who undertakes it_____ (18) the time that it is undertaken, obviously he or she would not do it._____(19) the distinction between rational and emotional motives does not appear to be warranted.Some researchers go so far_____(20) to suggest that emphasis_____ (21) "needs" obscures the rational, or conscious, nature of most consumer motivation. They claim that con sumers act consciously____(22) maximize their gains and minimize their losses; that they act not____(23) subconscious drives but from rational preferences,____(24) what they perceive to be_____(25) their own best interests.

判断题