阅读下面材料，回答下列的问题：PainAllofushavefeltpain．Wehavecutourselves．WehavebeenburnedO

共享题干题阅读下面材料，回答下列的问题： Pain All of ushave felt pain．We have cut ourselves．We have been burned Or we have had　headaches.Some of us suffer pain rarely pain rarely．(46) Pain cantake complete control of our body and mind, making it impossible to move and evento think．Yet we need pain．Without it, we would not know．If we have hurtourselves．It is our body' s warning system．(47) Pain isthe most common reason we go to a doctor．It is the most common reason we take medicines.Until recently, however, most doctors knew of only a few drags that stoppedsome pains．(48) But new knowledge about the process of pain ishelping them to control pain better. Scientists have learned that the sense of pain is made up of both chemical and electrical signals．(49) Scientists also havelearned that the nervous system sends two different kinds of pain messages tothe brain: one very fast, the other slow．The first message is the warningsignal．It moves at a speed of 30 meters a second In less than a second, thebrain understands that part of the body is hurt and how badly it is injured (50) It tells us not to use theinjured part until it heals.1.[不定向选择题]__________A.And others have painful attacks all the tim B.These signals travel from nerve cells in the injured area, up the spinal cord (脊髓) to the brain, and back down agai C.It tells us that we are injured and should do something about i D.They knew little about the process of pain itselE.The other message moves at a speed of only 0．13 meter a seconF.And they send the second, slower message of pain to the braiABCDEF确定 2.[不定向选择题]__________A.And others have painful attacks all the tim B.These signals travel from nerve cells in the injured area, up the spinal cord (脊髓) to the brain, and back down agai C.It tells us that we are injured and should do something about i D.They knew little about the process of pain itselE.The other message moves at a speed of only 0．13 meter a seconF.And they send the second, slower message of pain to the braiABCDEF确定

1.参考答案：C
参考解析：空白前的句子讲到，“疼痛是我们身体的警报系统”。因此接下来的句子应该说明这样说的原因，所以答案为C。?
2.参考答案：A
参考解析：A、其他人也一直受到疼痛的袭击。?B、这些信号从脊髓上部受伤部分的神经细胞传递到大脑，然后又从大脑传回。?C、它告诉我们，我们受伤了而且应该对伤口进行治疗。?D、他们对疼痛的过程一无所知。?E、另外的消息则以每秒0．13米的速度传递。?F、它们将第二条稍慢的疼痛信息传递给大脑。?文章第一段提到，我们都曾感觉过疼痛。从空白前一句的内容，即“有些人很少遭受疼痛之苦”，可以推断空白处句子的内容应当与这一句的内 容相反，即“另外一些人却总是遭受疼痛的袭击”，所以答案为A。?3.[不定向选择题]__________A.And others have painful attacks all the tim B.These signals travel from nerve cells in the injured area, up the spinal cord (脊髓) to the brain, and back down agai C.It tells us that we are injured and should do something about i D.They knew little about the process of pain itselE.The other message moves at a speed of only 0．13 meter a seconF.And they send the second, slower message of pain to the braiABCDEF确定

这个答案应该是对的

如以上回答内容为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！

点此我要举报以上问答信息