TPO (TOEFL Practice Online) 是美国教育考试服务中心(Educational Testing Service，简称ETS)专为参加TOFEL TPO 口语第25套Question 6答题技巧及模版：
Question：
Using points and examples from the lecture, explain two ways weathering occurs.
1、题目关键词：points and examples, explain
2、答题要领：
(1)briefly summarize two ways weathering occurs.
(2)use specific examples to explain each one.
3、听力材料要点：
(1)Weathering means that huge rocks break into smaller pieces due to the exposure to the environment.
(2)Rocks are often exposed to water. When water freezes inside the rock, it expands and over time, it can leads to weathering. The example of a rock with a small crack.
(3)Caused by plant growth. The plant may take roots and grow down into the rock. This also leads to weathering. The example of a large tree growing on the top of the rock.
4、模板：
(1)In the listening material, the professor discusses two ways weathering occurs.
(2)The first one is ... For example, ...
(3)The second one is ... For example, ... (3)The second one is ... For example, ...【】
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