Pre:
1. 引入：U3 different types of feelings→图片She feels angry.＝ She loses her temper.→U4：beauty of nature, friendly side→U5：But when nature loses temper, what will happen?→natural disasters(dis-否定前缀，"aster" means "star"，古人认为不好的星象预示着自然灾害)→Nature's Temper自然之怒
2. 1a: match and learn (虽然都是新词，但3个合成词很好选earthquake, wildfire，snowstorm。typhoon: ph-/f/, oo-/u:/; flood类比blood; dry→drought)
3. Guessing game for practice.
4. 视频引入情境感知过去进行时态，并引入新词 (doing chores→when earthquake started；warning a neighbor→at the time of the flood；taking a train→while it was snowing)
While:
1. 1b
2. 1c
3. 听+填表
4. 听+填空(过去进行时态+语言点)
Post:
1. 观察总结How to ask about people's actions during the disasters? + How to describe people's actions during the disasters? + feel + care between people
2. 1d
