Urbanization and Its Influence Over half the world’s people now live in cities.The latest“Global Report on Human Settlements”say

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问题 Urbanization and Its Influence
Over half the world’s people now live in cities.The latest“Global Report on Human Settlements”says a significant change took place last year.The report_________(1)this week from U.N.Habitat,a United Nations agency.
A century ago,_________(2)than five percent of all people lived in cities._________(3)the middle of this century it could be seventy percent,or_________(4)six and a half billion people.
  Already three—fourths of people in_________(5)countries live in cities.Now most urban population_________(6)is in the developing world.
  Urbanization can lead to social and economic progress,but also put_________(7)on cities to provide housing and_________(8).The new report says almost two hundred thousand people move________ (9)cities and towns each day.It says worsening inequalities,_________(1 0)by social divisions and differences in_________(11),could result in violence and crime unless cities plan better.
Another issue is urban sprawl(无序扩展的城区).This is where cities_________(12)quickly intorural areas,sometimes_________(13)a much faster rate than urban population growth.
  Sprawl is common in the United States.Americans move a lot.In a recent study,Art Hall atthe University of Kansas found that people are moving away from the_________(14)cities to smallerones.He sees a_________(15)toward“de—urbanization”across the nation.
(3)

选项 A、By
B、Along
C、Through
D、To

答案A

解析 along:沿着。through:通过、穿过。表示时间的节点用by,by the middle of this century,在本世纪中叶。
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