1.A number of factors are accountable for this situation.
A number of factors might contribute to (lead to )(account for ) the phenomenon(problem).
2. The answer to this problem involves many factors.
3. The phenomenon mainly stems from the fact that...
4. The factors that contribute to this situation include...
5. The change in ...largely results from the fact that...
6. We may blame ...,but the real causes are...
7. Part of the explanations for it is that ...
One of the most common factors (causes ) is that ...
Another contributing factor (cause ) is ...
Perhaps the primary factor is that
But the fundamental cause is that ...
2017届重庆市高考英语一轮复习阅读理解选编精练:55(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:48(含解析)
2017年高考英语一轮复习讲练测:必修3.1 Festivals around the world(讲)(解析版)
国际英语资讯:British govt urged to safeguard rights of EU nationals in Britain
2017届重庆市高考英语一轮复习阅读理解选编精练:60(含解析)
2017年高考英语一轮复习讲练测:必修3.4 Astronmy the science of the stars.(练)(解析版)
2017届重庆市高考英语一轮复习阅读理解选编精练:53(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:39(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:46(含解析)
2017年高考英语一轮复习讲练测:必修3.1 Festivals around the world(测)(解析版)
2017年高考英语一轮复习讲练测:必修3.2 Healthy eating(测)(解析版)
2017年高考英语一轮复习讲练测:必修3.3 The Million Pound Bank Note(练)(解析版)
2017届重庆市高考英语一轮复习阅读理解选编精练:51(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:67(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:47(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:44(含解析)
2017年高考英语一轮复习讲练测:必修3.2 Healthy eating(练)(解析版)
2017届重庆市高考英语一轮复习阅读理解选编精练:52(含解析)
2017年高考英语一轮复习讲练测:必修3.2 Healthy eating(讲)(解析版)
2017年高考英语一轮复习讲练测:必修3.5 Canada-The True North(测)(解析版)
2017届重庆市高考英语一轮复习阅读理解选编精练:64(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:49(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:42(含解析)
2017年高考英语一轮复习讲练测:必修3.4 Astronmy the science of the stars.(测)(解析版)
2017届重庆市高考英语一轮复习阅读理解选编精练:57(含解析)
2017年高考英语一轮复习讲练测:必修3.4 Astronmy the science of the stars.(讲)(解析版)
2017届重庆市高考英语一轮复习阅读理解选编精练:50(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:65(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:56(含解析)
2017届重庆市高考英语一轮复习阅读理解选编精练:40(含解析)