更多"survival"的相关试题:
[简答题]The tribe emphasized collective survival，mutual aid and being responsible for one another.
[多项选择]But for the survival instinct which nearly all creatures have, ______________________ (更多的物种就可能已经在地球上灭绝了).
[单项选择]
Trees have a spectacular survival record. Over a period of more than 400 million years, they have evolved as the tallest, most massive, and longest-lived organisms ever to inhabit the Earth. Yet trees lack a means of defense that almost every animal has: trees cannot move away from destructive forces. Because they cannot move, all types of living and nonliving enemies—fire, storms, microorganisms, insects, other animals and, later, humans—have wounded them throughout their history. Trees have survived, because their evolution has made them into highly compartmented organisms.
In that respect trees are radically different from animals. Fundamentally, animals heal: they preserve their life by making billions of repairs, installing new cells or rejuvenated cells in the positions of old ones. Trees cannot heal: they make no repairs. Instead, they defend themselves from the consequences of injury and infection by walling off
the damage. At the same time the
A. green
B. long-lived
C. massive
D. tall
[简答题]The survival of a forest depends not only on amount of annual rainfall it receives， ______(还依赖于雨水的季节性分配)．
[简答题]Originally, shooting was only a tool for survival, and it wasn’t a sporting event until the 19th century. In 1896 it became an event of the Olympic Games for the first time. And then it was suspended from 1904 to 1928, and returned to the Olympics in 1932. Women were allowed to join in Olympic shooting competitions in 1968 for the first time. There were only 3 shooting events in the 1896 Olympics, but now it contains 17 events.
[填空题]Emotions are significant for man’s survival and adaptation because they are______ for the social feeling of agreement by which society is maintained.
[单项选择]If we had to rely on only five senses for survival, we would be in very sad shape indeed. We wouldn’t know up from down. We wouldn’t know when to eat or drink. We wouldn’t know what our muscles were doing or what position our limbs were in. We wouldn’t know when our body was damaged because we wouldn’t feel pain. We might freeze to death without even a shiver, or overheat without a drop of sweat. The five senses--touch, taste, smell, bearing and sight-respond only to stimulation from the outside world, but the inside world of our bodies must also receive and respond to important messages.
Our internal senses keep us alive and enable us to use our external senses. In effect, the internal senses tell our brains how to run our bodies. Hunger or thirst register in a part of the brain called the hypothalamus(丘脑下部) , when a lack of food chemicals are detected in the blood.
Another internal sense that controls our balance is maintained by three fluid-filled loops in the inner
A. in fact
B. it is doubtful
C. often
D. without reason
