赞题库-背景图

单项选择题

It can be inferred from the passage that global warming is______.

A．harmful
B．irrelevant
C．favorable
D．desirable

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单项选择题According to the passgae, the sentence But if the earth…for optimum comfort (in the 3rd paragraph) means

A．there is an unseen hand controlling the earth' s movement
B．there is an operating manual warning people against air-conditioning in the factory
C．people should prepare operating manuals to tell workers how to get greater comfort
D．people have been enjoying the most comfortable climate in Earth' s history.

单项选择题Which of the following is NOT true according to the passage

A．The climate in recorded human history has generally remained stable.
B．The climate from about 135,000 to 115,000 years ago was in a extremely cold state.
C．The human race has been lucky to have enjoyed the most favorable period of climate for them to build a socio-economic system.
D．The evidences scientists collected from the ice cores suggest that a civilization can not have arisen in the period from about 135,000 to 115,000.