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1.Does contagious yawning mean you’re nice?A）You’re in a conversation with another person and he casually yawns. As you wonder whether he’s bored with the discussion, you find that y…… 2.How to Visualize Your SuccessA）Have you ever heard of visualization (可视化)? Of course you have. Everybody’s heard of visualization and everybody partakes in it whether they realize …… 3.The EarthPower and LightA）Compared to the rest of the universe, the Earth is very small. Our planet and seven others orbit the Sun, which is only one of about 200 billion stars in …… 4.Paper—More than Meets the EyeA）We are surrounded by so much paper and card that it is easy to forget just how complex it is. There are many varieties and grades of paper materials,…… 5.The Right Amount of EnergyA）We all enjoy being around people with energy. They inspire us. They are stimulating, fun, and uplifting. An energetic person has passion in his voice, a…… 6.Ingredients for HappinessA） No, happiness isn’t a lottery ticket away. I am fascinated by academic studies of human happiness, because they bring scientific rigor to issues we all …… 7.Of the millions of inventions, what are the eight greatest?A） I’ve drawn up a list. And there’s one thing I know about this list: You won’t agree with it. Some of you will write to…… 8.Are we ready for the library of the future?Librarians or providers of tech support?A） Librarians today will tell you their job is not so much to take care of books but to give peop…… 9.Pub-talkA） Pub-talk, the most popular activity in all pubs, is a native dialect with its own distinctive grammar. There are very few restrictions on what you can talk about in pubs…… 10.Secrets of Grade-A ParentsHelping your child get ahead at school starts at homeA）When Carey Graham started Grade One, he got a very special teacher. “She recognized my passion for …… 11. It is simple enough to say that since books have classes fiction, biography, poetry—we should separate them and take from each what it is right that each should give us. Yet f…… 12. The picnics，speeches，and parades of today’s Labor Day were all part of the first celebration，held in New York City in 1882. Its promoter was an Irish-American labor leader nam…… 13. Oceanography has been defined as “The application of all sciences to the study of the sea”.　　Before the nineteen century, scientists with an interest in the sea were few a…… 14. As high school students flock to social networking sites, campus police are scanningtheir Facebook and MySpace pages for tips to help break up fights, monitor gangs andprevent …… 15. A theme is emerging from the flood of recent corporate earnings reports: cost cuts are boosting profits. Investors are cheering, but they shouldn't. Even in these tough times, …… 16. It happens to every medical student sooner or later. You get a cough that persists for a while. Ordinarily,you would just ignore it--but now, armed with your rapidly growing m…… 17. Single-sex education is the practice of conducting education where male and female students attend separate classes in separate schools. The practice was predominant (突出的) befo…… 18. I exercise all the time, but I still have gut fat that hangs over my belt when I sit. Why isn't all the exercise getting rid of it?It's a question many of us could ask. More th…… 19. Health experts have called adolescents to avoid salty diets, warning that such diets were capable of causing hypertension (高血压), as they grow older. The experts, who spoke in L…… 20. Oceanography has been defined as “The application of all sciences to the study of the sea”.　　Before the nineteen century, scientists with an interest in the sea were few a……

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