Question

【题目】Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of finger-prints and discovered that no exactly similar pattern is passed on from parents to children, though nobody knows why this is the case.

The ridge（脊状）structure on a person's fingers does not change with growth and is not affected by surface injuries. Burns, cuts and other damage to the outer part of the skin will be replaced in time by new one which bears a reproduction of the original pattern. It is only when the inner skin is injured that the arrangement will be destroyed. Some criminals make use of this fact to remove their own finger-prints but this is a dangerous and rare step to take.

Finger-prints can be made very easily with printer's ink. They can be recorded easily. With special methods, identification can be achieved successfully within a short time. Because of the simplicity and economy of this system, finger-prints have often been used as a method of solving criminal case. A suspected man may deny a charge but this may be in vain. His finger-prints can prove who he is even if his appearance has been changed by age or accident.

When a suspect leaves finger-prints behind at the scene of a crime, they are difficult to detect with the naked eye. Special techniques are used to "develop" them. Some of the marks found are incomplete but identification is possible if a print of a quarter of an inch square can be obtained.

【1】Scientists and experts have proved that the pattern of a human being's finger skin__ ___

A. is similar to his mother's

B. is valuable to himself only

C. is like that of others with the same type of blood.

D. is different from that of all others

【2】If your fingers are wounded by knife, fire or other means, the structure of skin will____.

A. be changed partly

B. be replaced by a different one

C. be the same when the wound is recovered

D. become ugly

【3】Some criminals remove their own finger-prints by ____.

A. using printer's ink

B. injuring the inner skin

C. damaging the outer skin

D. damaging the color

【4】Finger-prints have often been used as a method of solving criminal case because it_____.

A. is complicated but reliable

B. is simple and not expensive

C. is expensive but easy to do

D. can bring a lot of money

【5】It is ________for a criminal to deny his crime when finger-prints are used to identify him.

A. worth trying B. successful C. useful D. useless

Answer 1

【答案】

【1】D

【2】C

【3】B

【4】B

【5】D

【解析】

试题分析：这篇文章告诉我们每一个人的指纹都是不一样的，并且指纹的形状是不会随着年龄的增长以及受伤而改变的，除非改变它的内部形状。因此在破案时，一旦罪犯的指纹被发现，他的身份就会被暴露。

【1】细节题。由第一段中的Scientists and experts have proved the uniqueness of finger-prints and discovered that no exactly similar pattern is passed on from parents to children句意为科学家以及专家证实了指纹的独特性，并且发现没有确切的相似的图案是由父母遗传给孩子的，可以推断出人类指纹的图案是不同于任何其他人的。故选D。

【2】推断题。由第二段中的The ridge（脊状）structure on a person's fingers does not change with growth and is not affected by surface injuries. Burns, cuts and other damage to the outer part of the skin will be replaced in time by new one which bears a reproduction of the original pattern. 句意为人们指纹的脊状结构不会随着年龄的增长以及表面的受伤而改变的。烫伤，切伤以及对于表面皮肤的其他伤害会及时的被另一块皮肤替代，这块皮肤是原来皮肤的原始图案的复制品，可以推断出当手受伤了，它恢复之后的皮肤图案是没有变化的。故选C。

【3】细节题。由第二段中的It is only when the inner skin is injured that the arrangement will be destroyed. Some criminals make use of this fact to remove their own finger-prints but this is a dangerous and rare step to take. 句意为只有当内部皮肤受损时，这种一致性才会被破坏。一些罪犯利用这个事实，移除自己的指纹，但是这是很危险，很稀少的做法。可以推断出罪犯通过伤害自己的内部皮肤来改变自己的指纹。故选B。

【4】推断题。由第三段中的Because of the simplicity and economy of this system, finger-prints have often been used as a method of solving criminal case.句意为由于这个系统的简单性以及经济性，改变指纹成为解决犯罪案件中经常使用的一种方法，可以推断出这样做的原因是这种方法既简单又不贵，故选B。

【5】推断题。由最后一段中的Some of the marks found are incomplete but identification is possible if a print of a quarter of an inch square can be obtained句意为尽管有些标记是不完整的，但是如果获得了四分之一的指纹，那么这是有可能得到确认的，可以推断出当指纹被用来指控罪犯时，罪犯否认是没有用的，故选D。