题目内容
生态环境恶化已越来越引起人们的关注。请论述森林生态系统对改善生态环境的重要作用。
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某一框架柱高4m，当混凝土浇捣时从柱顶直接灌入。试分析这种做法的不利影响，并提出较好的措施。
ATA单证制度的核心内容是实行国际联保。( )
Task 1Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 through 40. For each question or statement there are 4 choices marked A), B), C) and D). You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the center. In the 1960s, many young Americans were dissatisfied with American society. They wanted to end the Vietnam War and to make all of the people in the U.S. equal. Some of them decided to "dropout" of American society and form their own societies. They formed Utopia(乌托邦) communities, which they called "communes", where they could follow their philosophy of "do your own thing". A group of artists founded a commune in southern Colorado called "Drop City". Following the ideas, of philosopher and architect Buckminster Fuller, they built houses from pieces of old cars. Other groups, such as author Ken Kesey’s Merry’ Pranksters, the followers of San Francisco poet Steve Gaskin, and a group that called itself the Hog Farm, lived in old school houses and traveled around the United States. The Hog Farm became famous when they helped organize the Woodstock Rock Festival in 1969. Steve Gaskin’s followers tried to settle down on a farm in Tennessee, but they had to leave when some members of the group were attested for growing marijuana(大麻). However, not all communes believed in the philosophy of "do your own thing". Twin Oaks, a commune founded in Virginia in the late 1960s, was based on the ideas of psychologist B. F. Skinner. The people who lived at Twin Oaks were carefully controlled by Skinner’s "conditioning" techniques to do things that were good for the community. In 1972, Italian architect Paolo Soleri began to build Arcosanti, a Utopian city in Arizona, where 2,500 people will live closely together in one large building called an "archeology". Soleri believes that people must live closely together so that they will all become one. We can conclude from the passage that ______.
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