William Campbell, Satoshi Omura and Tu Youyou jointly won the 2015 Nobel Prize for medicine{#blank#}1{#/blank#} their work against parasitic diseases (寄生虫病). 85-year-old Tu was awarded this prize for her contribution to{#blank#}2{#/blank#} (reduce) the death rate of malaria (疟疾), minimizing patients' suffering and promoting mankind's health. This is {#blank#}3{#/blank#} science is all about.

    As a matter of fact, Tu has won some attention when she {#blank#}4{#/blank#} (get) the Lasker Award in 2011. But there is no way to compare her popularity back to the attention she is receiving today. As the first Chinese mainland Nobel Prize Winner of natural science award, Tu's winning {#blank#}5{#/blank#} (complete) surprised Chinese people, {#blank#}6{#/blank#} have long been wondering when the first Chinese Nobel Laureate in natural science would appear.

    Tu Youyou is the first Chinese scientist to win a Nobel Prize for work {#blank#}7{#/blank#} (carry) out within China. She has spent 40 years' time on scientific research. Although the Nobel Prize did not come to her until four decades later, it is definitely one of {#blank#}8{#/blank#} most privilege rewards that recognizes Tu's devotion and perseverance in discovering artemisinin (青蒿素). Her record-breaking winning  {#blank#}9{#/blank#} (be) a reminder that science is never about instant success. There is no way to measure how much you spend on scientific research and compare {#blank#}10{#/blank#} with how much reward you get.

    He was a professor. At the age of 90, he still worked eight hours every day regardless{#blank#}1{#/blank#}the weather.

    His secretary said, “He was extremely old, but he forced himself to walk from his living place to the office through two blocks{#blank#}2{#/blank#}would lake him an hour to do so but he insisted because it made him get a sense of{#blank#}3{#/blank#}(succeed) .”

    One day, a university student{#blank#}4{#/blank#}(step) out of his office with a pile of books. He complained. “He always answers my questions with just a yes or no. However, he always gives me dozens of books and suggests me{#blank#}5{#/blank#} (find) the answer on my own.”

    By chance, the professor knew{#blank#}6{#/blank#}the student complained about. He explained to him with a smile, “This is the method I have learnt—the{#blank#}7{#/blank#}(hard) you work independently, the better solutions you will find. If you can make full use of the books, you will{#blank#}8{#/blank#}(probable) become a good lawyer in the future.”

    This 90-year-old man was Pound{#blank#}9{#/blank#}was the president of Law College of Law College of Harvard. He believed “all slopes are easy{#blank#}10{#/blank#} (go)”, of which he often reminded his students.

    Day after day, a small blue truck speeds along the streets of Funen. A dog sits beside the driver, looking at him as if{#blank#}1{#/blank#} (listen) to his order. Whenever the truck goes by, the people of Funen tum and stare, some in wonder, others in admiration; for on its sides{#blank#}2{#/blank#} (print) the words TRACKER DOC and a telephone number.

    Yes, the passenger in the blue truck is a dog that{#blank#}3{#/blank#} ( be) used to find lost things or follow the tracks of persons and animals. Within seven years, the dog and his{#blank#}4{#/blank#} (own) Anderson have found lost things worth nearly $400,000，among{#blank#}5{#/blank#} are watches, jewelry, money, cows, pigs, and other dogs. Of course, the secret of the dog is his sensitive nose.

    Each year the dog and Anderson answer about 700 calls{#blank#}6{#/blank#} help. Four out of five times they find what they are asked to look for. Whenever the phone rings in Anderson's house, the dog is{#blank#}7{#/blank#} (immediate) excited. He quickly runs to the truck, eager to be off in search of the {#blank#}8{#/blank#} (lose).

    On the way, Anderson repeats again and again the namesof{#blank#}9{#/blank#}  they are looking for. So by the time they arrive, the dog is ready{#blank#}10{#/blank#} (get) to work. He circles here and there until he picks up the smell of an object in a place where it doesn't belong.

    As a major part of the culture and sports activities in our school, the Culture and Sports Festival, which ended last week, is {#blank#}1{#/blank#} largest and longest culture and sports event {#blank#}2{#/blank#} (organize) by our school.

    There were so many interesting and attractive activities that could enjoy {#blank#}3{#/blank#}(we) in them. The sports meeting {#blank#}4{#/blank#} (hold) on the new playground that is twice {#blank#}5{#/blank#} (large) than the old one. It is always the favorite of the sports fans. We took part in many sports events, {#blank#}6{#/blank#} helped us build up our {#blank#}7{#/blank#} (strong) and health. We also enjoyed other {#blank#}8{#/blank#} (program) including the competition of campus singers and the host contest.

    The Culture and Sports Festival has offered so many chances{#blank#}9{#/blank#} all the students. Hope you {#blank#}10{#/blank#} (join) us in the activities next year!

Food from the air

    Everyone has seen plants growing, but have you ever thought {#blank#}1{#/blank#} they get their food? In the seventeenth century, a European scientist {#blank#}2{#/blank#} (call) Van Helmot asked this question. Like most people, he thought that plants must get their food from soil. However, Van Helmot decided {#blank#}3{#/blank#} (test) the theory with experiments.

    First, he dried some soil, put it into a pot and weighed it. Next, he weighed a small tree, planted it in the pot and added rain water. Then, he watered it {#blank#}4{#/blank#} (regular) with rain water.

    After five years, he removed the tree from the pot and weighed it again. He found that the tree had gained {#blank#}5{#/blank#} huge amount of weight. When he weighed the soil, however, it was almost exactly the same as it had been five years {#blank#}6{#/blank#}. So Van Helmot drew the {#blank#}7{#/blank#} (conclude) that the tree grew by drinking water. Though it turned out to be wrong, he showed the importance of the use of scientific evidence to support ideas.

    We now know that plants and trees make their own food. Their leaves, when exposed {#blank#}8{#/blank#} the air and sun, are like factories {#blank#}9{#/blank#} can change the energy from the sun into chemical energy. During this process (过程), oxygen and sugar {#blank#}10{#/blank#} (produce). The oxygen is released back into the air, and the sugar is used by the plant as food.