Unit 5 Working the land Discover Useful Structures 课件-2023-2024学年高二英语人教版（2019）选择性必修第一册主语从句

Subject Clause 主语从句 1 01 concept 02 conectors 03 rules 04 practice makes perfect CONTENT 2 01 concept 概念 3 1. Yuan Longping is one of China’s most famous scientists. 2. He made large donations to support agricultural research. 3. To develop the first hybrid rice cost him a lot of time. 4. Keeping all the people away from hunger is his lifelong pursuit. 5. What he really care about was not money or celebrity. What’s the subject? 什么是主语？ 结论： ☞主语是句子说明的人或事物，一般放在______。 ☞一个句子来充当_______叫主语从句。 句首 主语 主语从句的定义： 在句中充当主语的从句叫做主语从句。 主语 His job is important. What he does is important. 引导的连接词有从属连词、连接代词和连接副词。 1. That Yuan love his career is sure to us. 2. Whether it was possible to develop a hybrid plant was a matter of great debate. 3. What concerned him most was that farmers often had poor harvests. 4. Who will go makes no difference. 5. Which book I shall choose hasn’t been decided. 6. How this could be done was a challenging question at that time. 找出下面句子中的主语从句 温馨提示：先找谓语 思考：主语从句连接词有哪些？有什么功能？ 02 Conectors 连接词 7 从属连词that、whether、if引导主语从句只起引导作用，不充当任何成分。 (1)That he will come is certain.（他确定会来。） →that无意义，不可省略。 ✳That 引导的主语从句通常用it 作形式主语。 ＝It is certain that he will come.（他确定会来。） 1.从属连词 (2)Whether he will come or not doesn’t matter.（他来或不来关系不大。） → whether有意义，译为“是否”，不可省略。 ✳whether 引导的主语从句通常用it 作形式主语。 ＝It doesn’t matter whether/if he will come or not. → whether/if 有意义，译为“是否”，不可省略。 ✳whether可置于句首和句中；if不可置于句首。 这个男孩玩手机让老师很生气。 _____ the boy plays smart phone made the teacher angry. That 它是不是我的孩子仍然是个问题。 _______ the cat is my child is a question. ＝It is a question ____ ___ the cat is my child. Whether Whether/if 【即时演练】 It doesn’t matter _________ he will come or not. ________ we’ll go camping tomorrow depends on the weather. It was doubtful ___________ Tom really saw Sharon. ________ Tom really saw Sharon was doubtful. 补全句子： _______________________ made us very happy. 她能来帮助我们使我们很高兴。 _________________________doesn’t matter too much. 她来不来都没关系。 whether / if whether whether / if Whether