六、因果型因果型选择题主要有两种形式:一种是题干为因,选项为果。另一种是题干为果,选项为因。该类题可以是一因一果,也可以是多因一果或一因多果,因此增大了试题难度。破解技巧解答因果型选择题应注意:(1)弄清因果关系是解答的关键,厘清是一因一果、一因多果,还是多因一果等。(2)确定四选项与题干的因果关系是否成立。例6(2014年重庆卷)下图示意三峡库区滑坡频率(月滑坡次数占全年滑坡次数的百分比)与 Six, causal type of causal choice There are two main forms: one is the result of dry, the option is fruit. The other is a result of dry, the option is due. This kind of question can be a result of a result, it can be more due to a result or a result of more fruit, thus increasing the difficulty of the test. Cracking Tips and Solutions Causal choice should pay attention to: (1) to find out the cause and effect of causation is the key to clarify the cause and effect, a result of more fruit, or more due to a result. (2) to determine whether the causal relationship between the four options and the title is established. Example 6 (Chongqing, 2014) The figure below shows the frequency of landslides in the Three Gorges Reservoir area (the number of monthly landslides as a percentage of annual landslides) and