Unit 5 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

Discover useful structures- Subject clauses Designed by zhang shiyi 2023/8/31 Learning aims 2 To master test points for Subject clause 02 To learn different forms of Subject clause. 01 To know how to use it in writing 03 contents 3 01 Definition 定义 02 Linking-words 连接词 03 Special usage 注意事项 04 Exercises 即时练习 What is Subject-clause 主语从句的定义 01 主语从句的定义： 在句中充当主语的从句叫做主语从句,有时为了避免头重脚轻，常用 it 作形式主语。 . Hello Summer Hello Summer 5 主语 His job is important. What he does is important. 主语 The news makes us happy. That he became the champion makes us happy. 6 He considered himself a farmer. Yuan’s innovation has helped to feed more people. Using salty land in China for rice production was his latest vision. How this could be done was a challenging question at the time. What concerned Yuan Longping most was that farmers often had poor harvests. It was true that he had just returned his homeland. Find the subject of the following sentences 找主语 Linking-words 主语从句的连接词 02 8 That Yuan Longping cared little for celebrity or money was true. Whether it was possible to develop the hybrid rice was in debate. Who will solve the soil problem is unknown. Which one is the best to expand output is not clear. When Yuan would retire to a life of leisure was never mentioned. Where the hybrid rice can be planted is a question. Why Yuan developed seawater rice was to feed more people. Find the linking words of subject-clause. 找出主语从句有哪些不同的连接词 9 That/ whether 1. That I love English is real. 2. That you can travel around the world is amazing. 3. Whether he will come is uncertain. 4. Whether the boy could win made me curious. Conclusion1:that在句中 （有/无）含义， （充当/不充当）句子成分， （可/不可）省略。 Whether (充当/不充当）句子成分；意思是“ ”。当主语从句在句首时，whether一般 （能/不能）被if替换。 无 不充当 不可 不充当 是否 不能 10 What/ who/ which/ whoever 1. What the refugees have gone through is beyond our imagination. 2. Who would get the opportunity to travel to Beijing is unknown. 3. Which student would b