"Not so", say scientists John Barley and Bib Fatane. These men went beyond the headlines to probe the reasons why people didn't act. They found that a person has to go through two steps before he can help. First he has to notice that is an emergency.
Suppose you see a middle-aged man fall to the side-walk, is he having a heart attack? Is he in a coma from diabetes? Or is he about to sleep off a drank?
Is the smoke coming into the room from a leak in the air conditioning? Is it "steam pipes", or is it really smoke from a fire? It's not always easy to tell if you are faced with a real emergency.
Second, and more important, the person faced with an emergency must feel personally responsible. He must feel that he must help, or the person won't get the help he needs.
The researchers found that a lot depends on how many people are around. They had college students in to be "tested". Some came alone. Some came with one or two others. And some came in large groups. The receptionist started them off on the "tests". Then she went into the next room. A curtain divided the "testing room" and the room into which she went.
Soon the students heard a scream, the noise of file cabinets filling and cry for help. All of this had been pm-recorded on a tape-recorder.
Eight out of ten of the students taking the test alone acted to help. Of the students in pairs, only two out of the ten helped. Of the students in group, none helped.
In other words, in a group, Americans often fail to act. They feel that others will act. They, themselves, needn't. They do not feel any direct responsibility.
Are people bothered by situation where people are in trouble? Yes, scientists found that the people were emotional, they sweated, they had trembling hands. They felt that other person's trouble. But they did not act. They were in a group. Their actions were shaped by the actions of those they were with.
The purpose of the passage is______.
A.to explain why people fail to act in emergencies
B.to explain when people will act in emergencies
C.to explain what people will do in emergencies
D.to explain how people feel in emergencies
第1题
关于正常人胰液的叙述错误的是()。
A.胰液为碱性液体,pH为7.8~8.4
B.胰液中碳酸氢盐的浓度随分泌率的增加而下降
C.无机成分主要由小导管细胞分泌
D.消化酶由腺泡细胞分泌
E.与其他消化液相比,胰液的消化能力最强
第2题
关于正常人胰液的叙述错误的是()。
A.胰液为碱性液体,pH为7.8~8.4
B.胰液中碳酸氢盐的浓度随分泌率的增加而下降
C.无机成分主要由小导管细胞分泌
D.消化酶由腺泡细胞分泌
E.与其他消化液相比,胰液的消化能力最强
第3题
胰腺癌最好发的部位是()。
A.胰液为碱性液体,pH为7.8~8.4
B.胰液中碳酸氢盐的浓度随分泌率的增加而下降
C.无机成分主要由小导管细胞分泌
D.消化酶由腺泡细胞分泌
E.与其他消化液相比,胰液的消化能力最强
第4题
关于正常人胰液的叙述,下列哪项是错误的
A.胰液为碱性液体,pH约为7.8~8.4
B.胰液的碱性来自其中的HCl
C.胰液中的Na+、K+和Cl-的浓度,随分泌速率不同而改变
D.与其他消化液相比,胰液的消化力最强
第5题
关于正常人胰液的叙述,下列哪项是错误的
A.胰液为碱性液体,pH约为7.8~8.4
B.胰液的碱性来自其中的HCl
C.胰液中的Na+、K+和Cl-的浓度,随分泌速率不同而改变
D.与其他消化液相比,胰液的消化力最强
第6题
关于正常人胰液的叙述,下列哪项是错误的
A.胰液为碱性液体,pH约为7.8~8.4
B.胰液的碱性来自其中的HCl
C.胰液中的Na+、K+和Cl-的浓度,随分泌速率不同而改变
D.与其他消化液相比,胰液的消化力最强
第7题
关于正常人胰液的叙述,哪项是错误的
A.胰液为碱性液体.pH约7.8~8.4
B.人每日分泌胰液量约1~2L
C.胰液中Na+、K+的浓度,随分泌速率不同而改变
D.与其他消化液相比.胰液的消化力最强
第8题
关于正常人胰液的叙述,下列哪项是错误的
A.胰液为碱性液体,pH为7.8~8.4
B.胰液的碱性来自其中的HCO3-
C.人每日分泌胰液量为1~2L
D.胰液中的Na+、K+和Cl-的浓度,随分泌速率不同而改变
E.与其他消化液相比,胰液的消化力最强
第9题
关于正常人胰液的叙述,下列哪项是错误的?
A.胰液为碱性液体,pH约为7.8~8.4
B.人每日分泌胰液量约为1~2L
C.胰液的碱性来自其中的HCO3-
D.胰液中的Na+、K+和C1-的浓度,随分泌速率不同而改变
E.与其他消化液相比,胰液的消化力最强
第10题
对于正常人胰液的叙述,错误的是
A.胰液为碱性液体,pH约为7.8~8.4
B.调节胰液分泌的主要体液因素为肾上腺素
C.无机成分主要由小导管细胞分泌
D.残气与肺总量比(RV/TLC)
E.第一秒用力呼气容积与用力肺活量比(FEV1/FVC)及第一秒用力呼气容积
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