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1、. . WritingWriting（原因分析类）写作模式参考范文The Changes in Something1. 简述某一事物的变化情况 2. 说明引起变化的原因 3. 分析其影响或走向Changes in Great Natural Disasters Worldwide下一页. . Writing WritingBack. . Writing Writing（划线部分可替换） 下一页上一页写作模式（原因分析类 ）1) As can be seen from the graph / table / diagram, there have been drastic / considera
2、ble / unfavorable changes in (议论的主题)over the past period from _ to _. 2) To be concrete, only in _(year) while / whereas the ratio(s) went up toin _ (year).(变化概述 ) 3) These changes are most disturbing, so it is necessary for us to go into the whys and wherefores of them first. (Para. 1) Back. . Writ
3、ing Writing（划线部分可替换）下一页上一页4) Some changes, such as , result from , but many others have much to do with 5) In the first place, mans excessive exploitation of has done a lasting damage to , only to ( 原因分析I)6) (进一步说明) 7) In the second, in order to , man has had to overwork , which in turn has accelera
4、ted (原因分析II) 8) In the third, mans blind application of has caused permanent changes in (原因分析III) 9) Among these changes are . (进一步说明)(Para. 2)Back. . Writing Writing（划线部分可替换）下一页上一页10) The list of causes could go on, but they are already enough to indicate that these changes are producing more and m
5、ore negative effects on the world. 11) These changes not only , but also(分析) 12) If allowed to run its course, I firmly believe / I am afraid, this trend will certainly bring more harm / threats to our society / life.(结论 句) (Para. 3)Back. . WritingWritingThe Changes in Great Natural Disasters Worldw
6、ide1. 简述所给图表中的变化。2. 说明引起变化的主要原因。3. 分析这些变化对全球的影响。下一页上一页Back1) As can be seen from the graph, there have been rapid changes in the great natural disasters worldwide over the past period from 1960s to 1990s. 2) To be concrete, there were only 16 terrible natural disasters, causing 300,000 deaths in 196
7、0s while the ratios went up respectively to 131 and 1,100,000 in 1990s. 3) The changes are disturbing, so it is necessary for us to go into the whys and wherefores of them first. . WritingWriting下一页上一页Back4) Some changes, such as those in earthquakes and volcanic eruptions, result from the movement
8、of plates along the weaknesses in the earths crust, but many others have much to do with mans activities. 5) In the first place, mans mindless and excessive exploitation of natural resources has done a lasting damage to the ecosystem, only to invite more floods, landslides and mud-rock flows. 6) The
9、 rare flood to which China was subjected in 1998 is typical of the evil seeds man had sowed for himself. 7) In the second, in order to feed their more and larger. . WritingWriting上一页下一页Backfamilies, people from all over the world have had to overwork their farming land as well as their grassland, wh
10、ich in turn has accelerated the desertification of the land on which they have been relying for existence. 8) In the third, mans blind application of scientific findings has caused unfavorable and permanent changes in the global living environment. 9) Among these changes are the depletion of ozone l
11、ayer, the worsening of greenhouse effect, the recurrence of hurricanes and the extinction of more species. . WritingWriting上一页下一页Back10) The list of causes could go on, but they are already enough to indicate that these changes are producing more and more negative effects on the world. 11) They have
12、 not only made it impossible for the natural systems to recover their balance but also made it harder for man to ensure his better survival. 12) If allowed to run its course, I am afraid, this trend will certainly bring more serious threats to all the living things on the Earth, mankind included. VI.VI. Writing Writing上一页THE ENDTHE END
