1 . Do you still use a power button（开机键）to open your smart phones or computers? You are out of fashion! Now most smart phones ere using facial-recognition system（面部识别系统）, and we already have machines that can know you from your fingers and your voice too. But some companies are still willing to invent other systems to “break”these systems, for example, the eye-recognition system. As is reported, you’ll just have to look at the computers and machines, and this system will be able to tell you who you are by looking at your eyes, even when you are wearing glasses.
Do you wonder if this system will work well? The answer is YES. All you need is just look at your machines. The eye scanner（扫描仪）is put in the cameras of your machines. The eye-recognition system is safer and easier then other systems. This is because everyone’s eyes are different Since the system works easily, you won't have to remember a group of code when you want to open your computer or take money out of a bank in the future. Eye-recognition system is better than other kinds of systems because your eyes don't change as you get older, and don't get dirty like hands or fingers. Even twins' eyes are not the same. So the eye-recognition system can be up to 94 percent correct, but it depends on how good the technology is. Some systems may only 51% right. In Britain, it was found that 91 percent of the people who had tried it said that they liked the idea of eye-recognition. So scientists think it will become more popular than other systems.
The eye-recognition system has already been tested in shops in the USA, Britain, Spain, Italy and Turkey. Soon it will become a popular way among public. In the future, your computer will be opened by looking at your eyes.
1. How does the eye-recognition system work?| A．You put your fingers on the machine and look at it. |
| B．You say something to the machine and look at it |
| C．You turn on the power button and stand before it. |
| D．You look at the machine and it can recognize who you are. |
| A．密码 | B．按钮 |
| C．符号 | D．钥匙 |
| A．The eye-recognition system doesn’t work if you wear glasses. |
| B．You must remember the code as well as looking at the machine. |
| C．If you get older, the eye-recognition system can still remember you. |
| D．The eye-recognition system is so good that it will never go wrong. |
| A．Your eyes never get older with age. |
| B．Your eyes don’t get dirty easily like your hands. |
| C．Your machines must be good. |
| D．Everyone’s eyes are different from others. |
2 . The effects of coffee consumption on health have long been a subject of conflict and uncertainty.Since the 1980s,some have spoken out against coffee as harmful to health,while others have welcomed coffee for its supposed benefits to health.
According to a scientific report,mild coffee consumption,three to five cups per day,can he taken as a healthy dietary pattern,along with other healthful behaviors.The report also says that coffee consumption helps reduce the risk of heart disease and it protects against Parkinson's disease.
According to Dr.Donald Hensrud of Mayo Clinic,high consumption of coffee has health risks.Dr.Hensrud mentions the dangers of high coffee consumption for people with a certain illness that slows the breakdown of caffeine in the body.Some studies said that drinking two or more cups of coffee daily can actually increase the risk of heart disease in these people.
According to conclusions from a recent study led by Dr.Gregory Marcus,a doctor from the University of California San Francisco,daily moderate consumption of caffeine,less than 4 cups,is not associated with these issues.
Until the scientific community reaches a general agreement on the effects of coffee consumption on human health,it will be up to the individual to decide whether the benefits of drinking coffee are greater than the risks.
When informed of these possible health benefits and harms of drinking coffee,Harwood,a high school student stated,"Even though there might be some negative effects of drinking coffee,for the most part,coffee drinking sounds good for health.Not to mention I need coffee to stay awake."
1. What is the people's attitude towards the effects of coffee on health according to Paragraph 1?| A．Disapproving. | B．Tolerant. |
| C．Doubtful. | D．Mixed. |
| A．Personal. | B．Slight. |
| C．Reasonable. | D．Heavy. |
| A．He'll keep on drinking coffee. | B．He loves his high school life. |
| C．He often falls asleep in class. | D．He has some health problems. |
| A．Why People Love Coffee? | B．How Coffee Affects Health? |
| C．The Culture of Coffee Drinking | D．The New Findings of Heart Disease |
