题目

Many people turn to doctors or self-help books, but they ignore a powerful thing that could help them fight illness: their friends.    Researchers are only now starting to pay attention to the importance of friendship in health. A 10-year Australian study found that old People with a large circle of friends. A large 2007 study showed an increase of nearly 60 percent in the risk    for obesity （肥胖） among people whose friends gained weight. And last year, Harvard researchers reported that strong social ties（关系）could improve brain health as we age.    “In genera书面表达 1．One morning ________ a letter. “Please put it ________ on the way to the bus stop. ” she said. “I won't forget. ” he answered. “I know I forget sometimes and keep letters in my bag for days. But I will surely put this one into the letter-box. ” Mrs. Green smiled and said, “Yes, I'm sure you will this time. ” 2．Mr. Green put the letter into his bag and said good-bye to Mrs. Green. He walked slowly down the street. Soon ________ came up from behind him. When he walked by, the man looked back, smiled and said, “________ to put that letter into the letter-box!” 3．Then ________ walked by. She turned and smiled, too. “Don't forget to put that letter into the letter-box!” she said. Mr. Green said to himself. “Why are these people smiling at me. And how ________ I have a letter in my bag?” 4．At last he came to a letter-box. He put the letter into it and walked on. But once more a man came up from behind him and asked him, “________ into the letter-box?” “Yes, I did. ” Mr. Green answered. But by this time he was a little angry. “Then I can ________.” said the man. 5．He took a large piece of paper ________ of Mr. Green's coat. He gave it to Mr. Green. On the paper were these words, “________ put the letter into the letter-box.”