Question

1 

Just as the world’s most respected scientific bodies have confirmed that the world is getting hotter, they have also stated that there is strong evidence that humans are driving the warming. Countless recent reports from the world’s leading scientific bodies have said the same thing. For example, a 2010 summary of climate science by the Royal Society stated that: “There is strong evidence that the warming of the Earth over the last half-century has been caused largely by human activity.”

The idea that humans could change the planet’s climate may be counter-intuitive, but the basic science is well understood. Each year, human activity causes billions of tons of greenhouse gases to be released into the atmosphere. As scientists have known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.

Of course, the planet’s climate has always been changing thanks to “natural” factors such as changes in solar or volcanic activity, or cycles relating the Earth’s going around the sun. According to the scientific literature, however, the warming recorded to date matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere – not the warming we would expect from other possible causes.

Even if scientists did discover another reasonable explanation for the warming observed so far, that would beg a difficult question. As Robert Henson puts it in The Rough Guide to Climate Change, “If some newly discovered factor can account for the climate change, then why aren’t carbon dioxide and the other greenhouse gases producing the warming that basic physics tells us they should be?”

The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths – one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.

1. In most scientists’ opinion, the global warming is mainly caused by ________.

A. solar activity                                                 

B. volcanic activity      

C. the Earth’s going around the sun                  

D. human activity

2.. The text is developed by ________.

A. giving typical examples

B. following the order of space

C. analyzing a theory and arguing it

D. comparing and finding differences

3. The underline word “identical” means ________.

A. totally different                                                      

B. exactly the same

C. extremely important                                      

D. relatively independent

4. Which of the following can be the best title?

A. Are All the Scientists Really Scientific?

B. Where Is Global Warming Leading Us to?

C. Are Humans Definitely Causing Global Warming?

D. What’s Relation of Global Warming and Greenhouse Gases?

 

Answer 1

【答案】

 

1.D

2.C

3.B

4.C

【解析】

試題分析：

1.D細節(jié)題。由Just as the world’s most respected scientific bodies have confirmed that the world is getting hotter, they have also stated that there is strong evidence that humans are driving the warming.可知，是人類活動影響氣候變暖。故選D

2.C 推斷題。由全文可知，文章提出來了一個觀點并且還在爭論。故選C

3.B 推斷題。根據(jù)本句The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths – one with human influence and one without. 指用兩個一樣的地球來進行式樣，一個受到人類的影響，而另外一個沒有。故Identical指“一樣的”，故選B

4.C 文章理解題。本文主要提出“人類活動是否影響氣候變暖”并爭論。故選C

考點：考查報告類短文閱讀

點評：本文主要就“人類活動是否影響氣候變暖”提出觀點并爭論。本文的題目較為簡單，主題也很突出，也考生熟悉的環(huán)境保護類的短文閱讀題。以推理題的考查為主，要求考生閱讀時關(guān)注文章細節(jié)，合理判斷，準確選擇。