单项选择题

A．positiveB．neutralC．suspiciousD．criticalThe author's a……

The author's attitude towards tile current situation ill the exploitation of natural resources is______.

A．positive
B．neutral
C．suspicious
D．critical

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单项选择题It can be inferred from the third paragraph that earlier generations didn't realize

A．the interdependence of water, soil, and living things
B．the importance of the proper use of land
C．the harmfulness of soil destruction and river floods
D．the extraordinarily rapid growth of population

单项选择题According to the passage, it is the telephone that______.

A．has made letter writing an art
B．has prevented wars by avoiding written communication
C．has made the world different from what it was
D．has caused wars by magnifying and extending human conflicts

单项选择题The author describes the telephone as impartial because______.

A．saves lives of people in remote places
B．enables people to live alone if they want to
C．spreads both love and ill will
D．replaces much written communication

单项选择题The telephone has intensified conflicts among people because______.

A．it increases the danger of war'
B．it provides services to both the good and the malicious
C．it makes distant communication easier'
D．it breaks up the multi-generational household

单项选择题What is the main idea of the passage

A．The telephone has helped to save people from illness and fire.
B．The telephone has helped to prevent wars and conflicts.
C．The telephone has made the modern oily neither better nor worse .
[D) The telephone has had positive as well as negative effects on US.