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Before the discovery of DNA information in the 1980s, fingerprints (指纹) were the easiest way to solve serious crimes. It’s believed that each one of us has our own fingerprint. But did you know that our fingerprints could show a lot about us?
According to The Conversation, fingerprints can show lifestyle and environment, eating habits, possible medical problems and even the job of a person.
So how can we work all this out from just a simple fingerprint?
Well, a fingerprint is formed when a finger touches a surface. Most fingerprints can’t be seen to the eye and require a chemical development process in order to make them shown. Stuck between the raised lines of a fingerprint are things that can tell a story about who we are. Things like sweat, blood and food show a lot of information about us.
Besides, its use could be much wider. For example, it may be helpful in the future to doctors treating their patients. A fingerprint check may also tell a doctor whether a patient is properly having a medicine. In the treatment of some of the most serious illnesses, having proper medicine is important.
In the future, fingerprint science can be used by the police and help doctors keep us in the best possible health.
1．What can we learn from Paragraph 1?| A．DNA can be used to solve serious crimes. |
| B．Fingerprints may show everything about us. |
| C．People didn’t begin to use fingerprints until 1980s. |
| D．Fingerprints are now the easiest way to solve crimes. |
| A．The chemical development. |
| B．A finger touching a surface. |
| C．The fact that it can be seen clearly. |
| D．The things stuck between raised lines. |
| A．a blood test | B．a fingerprint check |
| C．a health check | D．a physical exam |
| A．It will be better than DNA. |
| B．It will not be very helpful. |
| C．It will be more widely used. |
| D．It will not be properly used. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
