题目内容
17.Cutting trees in half can help scientists understand the past and now it appears it can be used to predict the future.Researchers have been looking at ring growth from trees to make sense of past weather patterns such as droughts and rain.Combining data from the rings allowed them to create a copy of pictures of climate changes over the past 2,000 years and this information could also be used to foresee future famine(饥荒),unrest and conflict.The project has been named Old World Drought Atlas,or OWDA.
Its main author,Columbia biologist Edward Cook,has already carried out similar projects using trees to create chronological(按顺序排列的)maps of drought in Asia and North-America.He believes that combining the three atlases could throw light on the global causes of drought and climate change.
The study,for instance,gave special attention to the importance of one of such causes,the North Atlantic Oscillation(涛动),in affecting climate patterns in Europe,and specifically in making Europe wetter north of the Alps and drier south of them.
The OWDA also helped analyse historical events from a climatic perspective.For instance,the 1740-174lfamine in Ireland had so far been explained by an unusually cold winter and spring,but the atlas shows that unusually low rainfall over the spring and summer of 1741 could also have played a role.Finally this made growing food nearly impossible and caused a continent-wide famine.
A better grasp of these processes could even make it possible to predict future famine,unrest and conflict.
Cook said,64The Old World Drought Atlas fills a major geographic gap in the data that's important to determine patterns of climate changes in time.That's important for understanding causes of many droughts,and it's important for climate modelers to test hypotheses(偎说) of climate forcing and change.
32.Why is ring growth useful in research?B
A.It's the best way to understand the past.
B.It could be used to predict the future.
C.It could be used to prevent the outbreak of droughts and rain.
D.It isn't mentioned in the passage.
33.People worldwide can read chronological maps of droughtA.
A.in Asia B.in Africa
C.in Europe D.in South America
34.What is the author's attitude toward the study of OWDA?C
A.Positive.B.Negative.
C.Objective.D.Conservative.
35.Why did the author of the passage mention what Cook said?B
A.To show he interviewed Cook himself.
B.To tell us the importance of OWDA.
C.To compare climate variability.
D.To analyse how to predict droughts.
分析 年轮可以帮助科学家了解过去的天气情况,科学家经过研究得出结论,年轮也有助于预知将来的天气变化.
解答 32.B.细节理解题.根据第一段的now it appears it can be used to predict the future可知,现在看来它可以用来预测未来,所以利用年轮的增加来预测未来,故选B.
33.A.细节理解题.根据第三段的Columbia biologist Edward Cook,has already carried out similar projects using treesto create chronological maps of drought in Asia and North America.可知,哥伦比亚生的物学家Edward Cook,已经进行了类似的项目,使用树木创建亚洲和北美洲的干旱年表.所以世人可以读到有关亚洲的干旱图,故选A.
34.C.推理判断题.通读全文可知,作者在文章中没有表明自己的观点,文章只是从客观的角度来描述,故选C.
35.B.推理判断题.根据最后一段的The Old World Drought Atlas fills a major geographic gap和That'simportant for understanding causes of many droughts,andit's important for climate modelers.可知,古老地图册填补了一个重要的地理空白,对于许多干旱了解原因很重要,对于气候模型也很重要.由此可判断其目的是说明古老地图册的重要性,故选B.
点评 本文是科教类阅读,主要考查细节理解题和推理判断题.在做细节理解题时,首先根据题目要求迅速在文章里找出相应的段落、句子或短语.认真比较选项和文中细节的区别,在做推理判断题时不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
A. | strength | B. | power | C. | force | D. | energy. |
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Pre-Camp:Upon registration in Active Challenge,an enrollment package will be sent out to you with forms to be completed prior(之前)to camp as well as program preparation materials,an introduction to Active Challenge and pre-program personal challenge assignments to get you on your way toward a healthier you.
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24.Outdoor adventurous activities are held for girlsB.
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B.To make them stronger
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D.To lose weight quickly
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C.cold but exciting
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A.until the end of November
B.until girls can keep their weight off forever
C.Until young women build up their bodies
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A. | completing | B. | to complete | C. | completed | D. | being completed |
A. | What | B. | Where | C. | Which | D. | That |
A. | finish | B. | finishing | C. | he finished | D. | finished |