【正文】
icals dissolved in the saliva being sensed by the taste buds present on the tongue. Try to dry off your tongue and mouth with a tissue paper and then taste something. Women are much better smellers than men. They are born with this characteristic ability and can correctly pinpoint(準(zhǔn)確說(shuō)出) the exact fragrance of the sample. We all can store almost 50,000 different scents, which are strongly tied to the memories. Pupils(瞳孔) do not respond to light alone, but to the slightest bit of noise around too. Thus surgeons, watchmakers and those professionals who have to perform a much delicate job do prefer to have a soundfree environment. Even a small noise can dilate(擴(kuò)大) their pupils, change the focus and blur(使模糊) their vision. If you do not wear glasses or contact lens due to having a 6/6 vision, you are just among the one third of the human population. It is now statistically proved that only one third of the population has perfect vision, rest all are either wearing glasses or are trying to read with a promised vision. Each and every one of us has a particular or individualistic or characteristic smell, which is unique to us, except for the identical twins. This smell is very subtle(微妙的) yet can be sensed even by a newborn. It may be due to this scent that the newborn recognizes the presence of his parents around. Many of us can pinpoint the smell of our significant friends and colleagues. A significant part of this phenomenon is guided by geics but it is also changed by the environment, diet and personal hygiene. This all together creates the unique chemistry that is individualistic for each person. 46. We can learn from Paragraph I that . A. after a full meal our hearing is as good as before B. all sensory ans are connected and can be exchanged C. sensory ans’ functions can never be changed for their particular character D. we feel and learn about the world around us through our eyes, ears, nose and tongue 47. What may happen after you have had a rich lunch? A. Your eyes bee dim. B. You may feel energetic and fresh. C. Your hearing pitch may be decreased. D. Your tongue may lose the function of taste. 48. What does the author mean by the underlined sentence in Paragraph 2? A. Our tongues can’t be dried while eating something. B. If your tongue is dried without any saliva on it, it will not work. C. A tissue paper is the only thing that can be used to dry our tongues. D. If your tongue is dried with a tissue paper, it may work as well as before. 49. What makes each person different from anyone else except twins? A. The number of sensory ans. B. The functions of sensory ans. C. The particular smell of a person. D. The style of one’ s behaviour. 50. What is the text mainly about? A. The functions of sensory ans. B. The connectivity of our tongue and ear. C. A newborn’s senses of the sensory ans. D. The differences of senses between women and men. D American students often have to take out loans to help pay for their education. Some students are very interested in the cost of undergraduate and graduate study in the United Sates. The first thing we should know is that the prices are different from school to school. The private colleges and universities generally cost more than public ones. Another thing to keep in mind is that not all students pay the “published price” of a school. Financial aid and scholarships may reduce the cost. The average published price for undergraduate study at a fouryear public college was about seven thousand dollars. That was for students from “in state”. Students from other states as well as international students paid an average of more than eighteen thousand dollars. This is the bad news— international students often have to pay the highest prices. And these averages were only for tuition (學(xué)費(fèi)) fees. Food, housing, books and supplies can add ten to twelve thousand dollars a year. The College Board says the average tuition at a private college was about twentysix thousand dollars. Many students save money by starting their education at a twoyear public college, also known as a munity college. The average tuition this year was about two thousand five hundred dollars. A few American colleges provide a free education, including the military and Merchant Marine academies. They accept some foreign students. Berea College is a small Christian school in Berea, Kentucky, that pays all firstyear costs for its foreign students. But they are expected to pay one thousand dollars a year after that. Summer jobs are provided to help meet this cost. Costs for graduate study in the United S