四级英语议论文写作解析
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smoking is a bad habit that does a lot of harm to human health. cigarette smoking does great harm to human health. in many cases, cigarette has proved to be the direct cause of such a fatal disease as cancer-hence its nickname, "cancer stick". experts say that smoking one cigarette can reduce one’s life by about 15 minutes and that chain smoking is far more hazardous. recent findings of medical research show that even a tiny drop of nicotine (about 3 grams in weight) can kill a large animal like a horse. some medical reports have also proved that heavy smoking would seriously affect an adult’s sexuality, and smoking after a meal also disturbs one’s digestive system. cigarette smoking not only jeopardizes the physical health of a smoker, it also affects the health of a nonsmoker who passively inhales the polluted air into his or her lungs when he or she is exposed to a winding shroud of cigarette smoke. the impact on such passive smokers (also called second-hand smokers), according to the experts in the medical field, can be even more damaging, and that is why smoking is usually prohibited in most public places. (196 words)
(2)议论文中常用的词句与短语
一.数据对比用语：
1. … are similar in their range of indicators
2. …cause / lead to a rapid / slow increase / decrease in the number / amount of…
3. …cause …to drop…
4. …climb dramatically from…to…
5. …constitutes about…percent …
6. …continue to rise / fall…
7. …continue to widen / shorten…
8. …declines to less than …percent.
9. …drop / fall to as many / much / little as…
10. …fall / rise / increase / decrease dramatically
11. …fluctuates between…
12. …grow only marginally from…to…
13. …increase / decrease slowly
14. …increase/ decrease lightly
15. …is doubled
16. …is inversely proportional to…
17. …is significantly lower / higher than…
18. …lead to an increased number / amount of…
19. …level off / remain constant at…
20. …lower the percentage of …
21. …maintain approximately the same number of…
22. …narrow down to…
23. …occupy a greater percentage of…
24. …peak / top at…
25. …range from…to…
26. …remain below…
27. …rise / fall / increase / decrease sharply
28. …rise above…
29. …rise to approximately…
30. …take up one third of…
31. …times smaller / larger than…
32. …totals / amounts to / reaches / arrives at / stays at…
33. …varies greatly / slightly between…and…
34. a very noticeable trend is the steady increase / decrease in…
35. as is shown in / as can be seen from / according to ----the table / table /
graph / pie chart / bar chart / figure / statistics /diagram shows /
illustrates /describes / indicates / reveals that…
36. it is clear / apparent from--- the table / graph / pie chart / bar chart /
figure /
37. it reached a peak of…
statistics / diagram that…
38. the number / amount of…consumed per head/ per person…
39. the number of…remains stable.
40. the number of…remains unchanged.
41. the number tapers off.
42. the percentage has been falling steadily.
43. the percentage is less than that of …
44. the table / graph / pie chart / bar chart(column graph) / figure / statistics
shows...
45. there are many variations in numbers of…
46. there is a gradual increase / decrease …
47. there is a large increase / decrease in…
48. there is a reduction in…
49. there is a significant increase/ rise in…
50. there is a smaller percentage of …
51. there is an obvious increase / decrease in…
52. there is not a great deal of difference between the percentage of…
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