How We Form First Impression

1　We all have first impression of someone we just met. But why? Why do we form an opinion about someone without really knowing anything about him or her — aside perhaps from a few remarks or readily observable traits.

2　The answer is related to how your brain, allows you to be aware of the world. Your brain is so sensitive in picking up facial traits, even very minor difference in how a person’s eyes, ears, nose, or mouth are placed in relation to each other makes you see him or her as different¹. In fact, your brain continuously processes incoming sensory information — the sights and sounds of your world. These incoming “signals” are compared against² a host of “memories” stored in the brain areas called the cortex system to determine what these new signals “mean.”

3　If you see someone you know and like at school³, your brain says “familiar and safe. ‘‘If you see someone new, it says, “new — potentially threatening.” Then your brain starts to match features of this stranger with other “known” memories；The height, weight, dress, ethnicity, gestures, and tone of voice are all matched up. The more unfamiliar the characteristics, the more your brain may say, “This is new. I don’t like this person.” Or else, “I’m intrigued. “Or your brain may perceive a new face but familiar clothes, ethnicity, gestures — like your other friends；so your brain says: “I like this person.” But these preliminary “impressions” can be dead wrong⁴.

4　When we stereotype people, we use a less mature form of thinking（not unlike the immature thinking of a very young child）that makes simplistic and categorical impressions of others. Rather than leam about the depth and breadth of people — their history, interest, values, strengths, and true character — we categorize them as jocks, geeks, or freaks.

5　However, if we resist initial stereotypical impressions, we have a chance to be aware of what a person is truly like. If we spend time with a person, hear about his or her life, hopes, dreams, and become aware of the person’s character, we use a different, more mature style of thinking — and the most complex areas of our cortex, which allow us to be humane.

词汇： 

trait / treɪ, treɪt/ n．特点，特征，特性

host / həʊst/ n．一大群，许多

simplistic / sɪm’plɪstɪk / adj．过分单纯化的

categorical / ,kætɪ’gɒrɪkl/ adj．绝对的

jock /dʒɒk / n．骗子

geek / gi:k / n．反常的人

stereotype / ’sterɪətaɪp/ v．对……产生成见

humane / hju:’meɪn, hjʊ- / adj．有人情味的，人文的

sensory / ’sensərɪ / adj．感官的，感觉的

cortex / ’kɔ:teks /n．脑皮层

ethnicity n．种族特点

intrigue / ɪn’tri:g / v．激起兴趣

freak / fri:k / n．怪人

注释：

1．Your brain is so sensitive in picking up facial traits, even very minor difference in how a person’s eyes, ears, nose, or mouth are placed in relation to each other makes you see him or her as different：从even开始到as different是个结果状语从句，相当于that even very minor ... .，而that是与主句中的so呼应的。

2．against：和……对比

3．If you see someone you know and like at school ...：如果你在学校里看见某个你认识而且喜欢的人…… like在这里是动词。

4．dead wrong：相当于completely wrong。dead wrong是口语表达用语。

B　the most complex areas of our cortex

C　the immature form of thinking of a very young child

D　the meaning of incoming sensory information

E　the sights and sounds of the world

F　an opportunity to analyze different forms of thinking

You interpret by comparing it against the memories already stored in your brain ________.

A:a stranger's less mature type of thinking B:the most complex areas of our cortex C:the immature form of thinking of a very young child D:the meaning of incoming sensory information E:the sights and sounds of the world F:an opportunity to analyze different forms of thinking

钢尺尺长方程式的一般形式为（）。
其中：lt为钢尺在t℃时的实际长度，l0为名义长度，△l为尺长为正数，α为线膨胀系数，t为使用时温度t0为标准温度。

A:lt=l0+△l+α（t-t0）l0•l0 B:lt=l0-△l-α（t-t0）l0 C:l0=lt+△+α（t-t0）l0

已知n阶可逆矩阵A的特征值为λ₀，则矩阵（2A）-1的特征值是：（）

A: B: C: D:2λ0

设变量PR0TV保存的数据为6，汇编下面这条指令的结果为( )。
MOV AX，PROTV LT5

A:MOV AX，0FFFFH B:MOV AX，0 C:MOV BX，0FFFFH D:MOV AX，0

设变量PR0TV保存的数据为6，汇编下面这条指令的结果为( )。 MOV AX，PROTV LT5

A:MOV AX，0FFFFH B:MOV AX，0 C:MOV BX，0FFFFH D:MOV AX，0

有如下程序：
#inClude
using nameSpace std；
Class A
public：
A(inti=0)：r1(i)
void plint（　）cout<<‘E’＜＜r1<<‘-’;
void print（　）constcout<<‘C’＜＜r1*r1<<‘-’;
void print(int X)cout<<‘P’＜＜r1*r1*r1<<‘-’;
prlvate：
intrl；
；
intmain（　）
Aal；
constA a2(4)；
a1.print(2)；
a2.print（　）；
returh0；
运行时的输出结果是（）。

A:P8-E4 B:P8-C16- C:P0-E4- D:P0-C16-

有如下程序
　　#include
　　using namespace std;
　　class A{
　　public:
　　A(int i=0):r1(i) { }
　　void print（　） {cout<<’E’<
　　void print（　） const {cout<<’C’<
　　void print(int x) {cout <<’P’<
　　private:
　　int r1;
　　};
　　int main（　） {
　　A a1;
　　const A a2(4);
　　a1.print(2);
　　a1.print（　）;
　　return 0;
　　}
运行时的输出结果是（）

A:P8-E4 B:P8-C16- C:P0-E4- D:P0-C16-

if语句的语法格式可描述为
格式1：if（<条件>）<语句>
或
格式2：if（<条件>）<语句1>else<语句2>
关于上面的语法格式，下列表述中错误的是（）

A:<条件>部分可以是一个if 语句，例如if(if(a =0)) B:<条件>部分可以是一个if 语句，例如if()if() C:如果在<条件>前加上逻辑非运算符！并交换<语句1>和<语句2>的位置，语句功能不变 D:<语句>部分可以是一个循环语句，例如if()while（）

有以下程序
main（　）
{int x[3][2]={0},i；
for(i=0；i<3；i++) scanf("％d",x[i])；
printf("％3d％3d％3d＼n",x[0][0],x[0][1],x[1][0])；
}
若运行时输入：2 4 6<回车>,则输出结果为（）。

A:2 0 0 B:2 0 4 C:2 4 0 D:2 4 6