Human beings are innately curiou

Human beings are innately curious concering the world in which we live. We yearn to know what other places look like- what the people their __26____, the animals and plant life, and landforms may be elseaxhere. Today, high levels of education and the influence of television and other ___27___ media have combined to create in us a much ___28___ awareness of our entire world. We are now in a global economy and our industries must be globally ___29___.We must think globally. Material prosperity in many developed countries, with accompanying higher ___30___ of living, has made travel attainable for hundreds of millions of us. __31____travel can be undertaken for many reasons the most common are pleasure, business and study.The subject of travel is exciting and fascinating Humanlike beings have been___32___from place to place for about 1 million years. Our early ancestors originated in eastern and southemn Africa. But remains ___33___these same forms of early humankind have also been found in China and Java(Indonesia). It has been estimated that ___34___ of this type took about 15000 years, but this is a brief ___35___ of time in the long history of humanify. Various theories have been proposed __36____ the motivation for such amazing journeys. Foremost is that these wanderings were in search of food and to escape from danger. Another ___37___ is that people observed the migrations of birds and wanted to know where the ___38___ came from and where they were going. Recently, in the most dramatic discovery of its kind ever ___39___ the preserved body of a man, who died 5000 years ago, was found in the ice in mountainous northem Italy. Some of the scientists ___40___ his body and accoutrements(装备) have conducted that he was retumning to his home in what is now Switzerland from a joumney to the south of what is now Italy.
回答第36空
A、to
B、regarding
C、relating
D、about
【正确答案】：B