Unit 5 Working the Land Discover useful structures课件-2023-2024学年高中英语人教版（2019）选择性必修第一册

Unit 5 Working the land Discover Useful Structures let’s review 然而，他最关心的是 农民经常粮食歉收 有时 甚至 出现严重的食物短缺。 如何实现这一目标 成为当时一个颇具挑战性的问题。 然而，是否能开发出自花授粉作物的杂交品种，是一个有着争论的问题（a matter of great debate) Circle the simple subject in each sentence. Time flies. Ice cream is the favorite dessert of children. The children in the first row received badges. Why would a baby elephant be eating leaves? Who gave you that present? To leave was his wish. Tall buildings and windy weather don’t mix well. Eat your dinner with a spoon. Driving too fast is dangerous. You what yuan Longping really cared about was not money or celebrity. That Yuan Longping had realised his dream of seawater rice surprised the whole world. It surprised the whole world that Yuan Longping had realised his dream of developing seawater rice. 观察划线斜体部分在主句中的位置 文中还有，刚背过的 ——————————————————————————— ———————————————————————————————— —————————— ———————————— ———————————————————————————————— —— What concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat. Discover useful structures: Subject clauses what 在主语从句中充当 _______, 译为 ______ 主语 事情 How this could be done was a challenging question at the time. Whether it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate. how 在主语从句中充当 ___________, 译为 ______ whether 在主语从句中充当 _______, 译为 ______ 方式状语 怎样 不做成分 是否 What impresses people most about Yuan Longping is his ongoing ability to fulfil his dreams. 主语从句，即在复合句中充当主语成分的句子. what 在主语从句中充当 _______, 译为 ______ 主语 事情，东西 引导主语从句的关联词 从属连词 (不作成分） 连接代词 （作成分） 连接副词 （作状语） what, who, whom, whose, which, wh+ever that, whether, if when, where, how, why 读一读，体会what 与 that使用的不同 what yuan Longping really cared about was not money or celebrity. That Yuan Longping had realised his dream of seawater