2. 职称英语
  3. The warming of the Earth【C1】______over the last 100 years will be due to a c

The warming of the Earth【C1】______over the last 100 years will be due to a c

游客2024-10-19  4
问题     The warming of the Earth【C1】______over the last 100 years will be due to a combination of many factors. Warming due to the increase in greenhouse gases【C2】______determined so far. 【C3】______, projections of greenhouse warming do not rest on recent observations, they come from【C4】______understanding of the climate system. A【C5】______of simple and complex computer models【C6】______over the last 30 years to put together knowledge of many climate processes.
    【C7】______to some scientific opinion, current models do a reasonable job of【C8】______today’s climate. The difference between summer and winter temperatures, in【C9】______to change in heating from the Sun, is correctly stimulated to【C10】______about 0.5 degrees over much of the planet.【C11】______events provide additional tests of our understanding. For example, the scale and【C12】______of cooling due to the eruption of Mt. Pinatubo were【C13】______by climate models.
    When greenhouse gases are increased in climate models, the response is always an increase in average temperatures and water vapor. Models【C14】______in their result but, in virtually all【C15】______, doubling the amount of carbon dioxide increase global average temperatures【C16】______between 1. 5℃ and 4℃. Why are there some dissenting【C17】______heard on the science of climate change?【C18】______it【C19】______that critics are simply unaware of the depth of the science developed so far.
    Others are concerned【C20】______we do not understand everything about the climate system. [br] 【C2】
选项 A、alone
B、lonely
C、simply
D、really
答案 A
解析 篇章题。上下文理解题。alone“单独地，唯一地”．如：The burden of proof rests on theprosecution alone．唯有检方负有举证责任。lonely做形容词，意为“孤独的”，如：Hespent the loneliest night of the week．他度过了这周最孤独的一个夜晚。simply表示“仅仅，只不过”，如：It is simply a matter oftime．这只不过是时间问题。really表示“真正地，真实地”，如：That was a really en joyable evening．那的确是一个快乐的夜晚。前一句讲地球变暖有许多原因，这一句只说到一个因素——the increase in green—house gases(温室气体的增加)，而空格后的determined(起决定作用)，说明“到目前为止(只有)这一个因素起决定作用”，因此，只有选项alone符合题意，为正确答案。
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