单选题 " Sesame Street" (芝麻街) has been called "the longest street in the world". That is because the television program by that name can now be seen in so many parts of the world. That program became one of America's exports soon after it went on the air in the New York in 1969 . In the United States more than six million children watch the program regularly. The viewers include more than half of the nation's pre-school children. Although some educators object to certain elements in the program, parents praise it highly. Many teachers also consider it a great help, though some teachers find that problems arise when first graders who have learned from "Sesame Street" are in the same class with children who have not watched the program. The program uses songs, stories, jokes and pictures to give children a basic understanding of numbers, letters and human relationships. Tests have shown that children have benefited from watching "Sesame Street". Those who watch five times a week learn more than the occasional viewers. In the United States the program is shown at different times during the week in order to increase the number of children who can watch it regularly. Why has "Sesame Street" been so much more successful than other children's shows? Many reasons have been suggested. People mention the educational theories of its creators, the support by the government and private businesses, and the skillful use of a variety of TV tricks. Perhaps an equally important reason is that mothers watch "Sesame Street" along with their children. This is partly because famous adult stars often appear on "Sesame Street". But the best reason for the success of the program may be that it makes every child watching it feel able to learn. The child finds himself learning, and he wants to learn more.

单选题 Why has "Sesame Street" been called "the longest street in the world"?

单选题 Some educators are critical of the program because______.

【正确答案】 C

【答案解析】解析：细节题。参考文章第二段的第三句话Although some educators object to certain elements in the program，parents praise it highly尽管很多教育专家反对这一电视节目里面的某些内容，但是父母们对它评价很高和第四句Many teachers also consider it a great help，though some teachers find that problems arise when first graders w

单选题 So many children in the United States watch the program because______.

单选题 Mothers often watch the program along with their children because______.

【正确答案】 C

【答案解析】解析：细节题。母亲陪孩子看此节目的原因可以从文中第四段倒数第三句和第四句可找到答案。Perhaps an equally important reason is that mothers watch“Sesame Street”along with their children．This is partly because famous adult stars offen appear on“Sesame Street”．让母亲们看此节目的重要原因是经常有著名的成人偶像出现在此节目里，和C项表述一致。

单选题 What is the most important reason for the success of the program according to the author?

【正确答案】 B

【答案解析】解析：细节题。“芝麻街”成功的原因文章列举了很多，但是最重要的原因是在文章中的第五段倒数第二句话：But the best reason for the success of the program may be that it makes every child watching it feel able to learn但它成功的最主要的原因可能是它使得每一个看节目的孩子感觉到他们可以学会些东西。A、C、D项均可通过第五段来排除。