One summer my wife and I were invited by friends to row down the Colorado River in a boat. Our expedition included many highly successful people—the kind who have staffs to take care of life’’s daily work. But in the wilder rapids (湍流), all of us naturally set aside any pretenses and put our backs into (竭尽全力于) every stroke to keep the boat from tumbling over. At each night’’s encampment, we all hauled supplies and cleaned dishes. After only two days in the river, people accustomed to being spoiled and indulged had become a team, working together to cope with the unpredictable twists and turns of the river. I believe that in life — as well as on boat trips — teamwork will make all our journeys successful ones. The rhythms of teamwork have been the rhythms of my life. I played basketball alongside famous players, and the team I now coach, the New York Knicks, has recovered from years of adversity to become a major contender in the 1990s. I’’m persuaded that teamwork is the key to dream come true. We all play on a number of teams in our lives—as part of a family, as citizens, as members of an agreement, written or unwritten. It contains the values and goals for every team member. For example, in the late 1970s a General Motors plant in Fremont, Calif, was the scene of constant ware between labor and management. Distrust ran so high that the labor contract was hundreds of pages of tricky legal terms. GM spent millions trying to keep the facility up to date, but productivity and quality were continually poor. Absenteeism was so out of control that the production line couldn’’t even start up on some mornings. Finally in the early 1980s, GM shut down the plant. GM became convinced that it had to create new production systems based on teamwork. In the mid-1980s it reopened the Fremont plant with Toyota, starting from scratch with a much r and shorter labor contract. It promised that executive salaries would be reduced and jobs performed by outside sellers would be given to employees before any layoffs were considered. Over a hundred job classifications were cut to just two. Instead of doing one boring job over and over, workers agreed to be part of small teams, spending equal time on various tasks. It is easy for boats to tumble over in the Colorado River because_________________________.