题目内容
Diabetes (糖尿病) and Eye DamageOver 2 million Canadians have diabetes. It is the leading cause of blindness in North Americans under 65 years of age. Diabetes is a condition where the body either cannot produce enough insulin (胰岛素) or cannot respond properly to insulin. Insulin is important because it moves glucose (葡萄糖), a simple sugar, to the body"s cells from the blood. The food people eat provides the body with glucose, which is used by the cells as a source of energy. If insulin isn"t available or doesn"t work correctly to move glucose from the blood into the cells, glucose will stay in the blood, leading to high blood sugar levels.High blood sugar levels damage the blood vessels, including the tiny blood vessels in the eye. This leads to an eye disease known as diabetic retinopathy (糖尿病型视网膜病). The retina (视网膜) is an area at the back of the eye that changes light into nerve signals. With diabetic retinopathy, some blood vessels in the retina are lost, and some of the other blood vessels begin to "leak" blood. This causes the retina to swell, and gradually cuts off its supply of oxygen and nutrients (滋养物). Eventually, the retina starts to grow new blood vessels to replace the damaged ones. Unfortunately, these new vessels are not as strong as the old ones. They are more likely to break, causing bleeding in the eye.At first, people with diabetic retinopathy will not notice any symptoms. As the disease gets worse, they may notice blurred (模糊的) vision, black spots or flashing lights. As time goes on, it can progress to blindness. Everyone with diabetes is at risk for diabetic retinopathy, and the risk increases the longer you"ve had diabetes.Fortunately, you can reduce your risk. If you do not have diabetes, but think you may be at risk for this condition, visit your doctor to be screened for diabetes. If you do have diabetes:·Have frequent eye check-ups.·Make sure that you monitor your blood sugar frequently and use your medications as recommended by your doctor. There is evidence to show that keeping your blood sugar under tight control can slow down eye damage.·If you have high blood pressure, follow your recommended diet and medications to keep it under control. If you are not sure whether you have high blood pressure, or whether your blood pressure is under control, discuss this with your doctor. With diabetic retinopathy, the damaged blood vessels in the retina ______.
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How Deafness Makes It Easier to HearMost people think of Beethoven"s hearing loss as an obstacle to composing music. However, he produced his most powerful works in the last decade of his life when he was completely 1 .This is one of the most glorious eases of the triumph of will over adversity, but his biographer, Maynard Solomon, takes a different 2 . Solomon argues that Beethoven"s deafness "heightened" his achievement as a composer. In his deaf world Beethoven could experiment, free from the sounds of the outside world, free to 3 new forms and harmonies.Hearing loss does not seem to affect the musical ability of musicians 4 become deaf. They continue to "hear" music with as much, or greater, accuracy than if they were actually hearing it being 5 .Michael Eagar, who died in 2003, became deaf 6 the age of 21. He described a fascinating phenomenon that happened within three months: "My former musical experiences began to play 7 to me. I couldn"t differentiate between what I heard and real hearing. After many years, it is still rewarding to listen to these playbacks, to "hear" music which is new to me and to find many quiet accompaniments for all of my moods."How is it that the world we see, touch, hear, and 8 is both "out there" and at the same time within us There is no better example of this connection between external stimulus and internal perception than the cochlear implant. No man-made 9 could replace the ability to hear. However, it might be possible to use the brain"s remarkable power to make sense of the electrical signals the implant produces.When Michael Eagar first "switched on" his cochlear implant, the sounds he heard were not at all 10 . Gradually, with much hard work, he began to identify everyday 11 . For example, "The insistent ringing of the telephone became clear almost at once."The primary purpose of the implant is to allow communication with 12 . When people spoke to Eagar, he heard their voices "coming through like a long-distance telephone call on a poor connection". But when it 13 to his beloved music, the implant was of no help. When he wanted to appreciate music, Eagar played the piano. He said, "I play the piano as I used to and hear it in my head at the same time. The movement of my fingers and the feel of the keys give added "clarity" to 14 in my head."Cochlear implants allow the deaf to hear again in a way that is not perfect, but which can change their lives. Still, as Michael, Eagar discovered, when it comes to musical harmonies, hearing is irrelevant. Even the most amazing cochlear implants 15 have been useless to Beethoven as he composed his Ninth Symphony at the end of his life.
Blend together the eggs, sugar and flour.
在newbook1的工作表1中，同时选择A1：B3和D2：D8这两个不连续区域。
How Deafness Makes It Easier to HearMost people think of Beethoven"s hearing loss as an obstacle to composing music. However, he produced his most powerful works in the last decade of his life when he was completely 1 .This is one of the most glorious eases of the triumph of will over adversity, but his biographer, Maynard Solomon, takes a different 2 . Solomon argues that Beethoven"s deafness "heightened" his achievement as a composer. In his deaf world Beethoven could experiment, free from the sounds of the outside world, free to 3 new forms and harmonies.Hearing loss does not seem to affect the musical ability of musicians 4 become deaf. They continue to "hear" music with as much, or greater, accuracy than if they were actually hearing it being 5 .Michael Eagar, who died in 2003, became deaf 6 the age of 21. He described a fascinating phenomenon that happened within three months: "My former musical experiences began to play 7 to me. I couldn"t differentiate between what I heard and real hearing. After many years, it is still rewarding to listen to these playbacks, to "hear" music which is new to me and to find many quiet accompaniments for all of my moods."How is it that the world we see, touch, hear, and 8 is both "out there" and at the same time within us There is no better example of this connection between external stimulus and internal perception than the cochlear implant. No man-made 9 could replace the ability to hear. However, it might be possible to use the brain"s remarkable power to make sense of the electrical signals the implant produces.When Michael Eagar first "switched on" his cochlear implant, the sounds he heard were not at all 10 . Gradually, with much hard work, he began to identify everyday 11 . For example, "The insistent ringing of the telephone became clear almost at once."The primary purpose of the implant is to allow communication with 12 . When people spoke to Eagar, he heard their voices "coming through like a long-distance telephone call on a poor connection". But when it 13 to his beloved music, the implant was of no help. When he wanted to appreciate music, Eagar played the piano. He said, "I play the piano as I used to and hear it in my head at the same time. The movement of my fingers and the feel of the keys give added "clarity" to 14 in my head."Cochlear implants allow the deaf to hear again in a way that is not perfect, but which can change their lives. Still, as Michael, Eagar discovered, when it comes to musical harmonies, hearing is irrelevant. Even the most amazing cochlear implants 15 have been useless to Beethoven as he composed his Ninth Symphony at the end of his life.
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