Apart from its size, another challenge facing researchers is that the human eye can only focus on things a few centimeters away or farther. Anything too close to our eyes will appear blurry. To solve this problem, Parviz used a thin, special lens called a "Fresnel lens" to magnify the display.

　　So far, the lens has only one pixel (像素) and cannot show anything other than a dot. To display a short e­mail or text message would need hundreds of pixels at least. But the new invention has proven that it is possible to develop more complex information lenses.

　　Researchers tested the lens in a rabbit's eye and it did not appear to cause any health problems.

　　According to Parviz, one day people will be able to see all the information they need directly from their contact lenses. We may even be able to zoom in on faraway views when enjoying scenery outdoors.

　　 Parviz is now also trying to develop medical uses for the lens. He is working on putting a blood sugar sensor into it to pick up the wearer's blood sugar level and other important medical information.

　　1．According to the article, the newly developed contact lens can do all the following EXCEPT ________.

　　A．seeing things that are both close up and far away

　　B．taking photos of beautiful views

　　C．checking the information you need

　　D．being removed from the eyeball easily

　　2．In order to make people still see normally through the lens, ________.

　　A．the electronic contact lens has to change its focus point

　　B．more pixels are needed for the electronic contact lens

　　C．all parts of the contact lens are made on a nanoscale

　　D．special lenses are used to magnify the display

　　3．What does the underlined word "blurry" in Paragraph 4 mean?

　　A．Unclear.　　　B．Clear.

　　C．Bigger. D．Smaller.

　　4．According to the last part of the article, which of the following statements is TRUE?

　　A．The electronic contact lenses currently have hundreds of pixels.

　　B．The electronic contact lenses have been tested on people.

　　C．People can read e­mails directly from the electronic contact lenses.

　　D．The electronic contact lenses might help pick up medical data one day.

　　Ⅵ.任务型阅读

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