Unit 1 Science and Scientists Discover Useful Structures 表语从句课件-2024-2025学年高中英语人教版（2019）选择性必修第二册

Unit1 Science and Scientists Discovering Useful Structures 1 Conducting experiments is his job. Conducting experiments is what he does every day. 表语从句是指______________________, 紧跟在________之后，对主语进行解释、说明，使主语的内容具体化。 系动词 在句子中充当表语的从句 Lead-in: Find the predicative clause Link verbs 系动词 be 感官：look sound smell taste feel 变化/持续：become grow turn fall get go come run A predictive clause is introduced by....? stand remain keep stay What I want to say is that I am tired. She doesn’t know whether she likes him or not. He was sent to the hospital. That’s because he was ill.  It sounds as if somebody was knocking at the door. The reason why he was late was that he missed the bus this morning. Judge: Which is a predicative clause? 表从的连接词 从句缺主宾表定 what物, who人，whom人宾 which哪一个, whose谁的 从句不缺主宾表定 （不作成分）that, whether 无意义，是否 （作状语）when, where, how, why, because 强调无论+ever 表语从句的引导词 连接代词：which(ever) 1. The question is . 问题是哪个学生英语最好。 2. I read about it in some book or another, but what I don't know is . 我在某本书里读到过，但我不知道是哪一本书。 总结：which 在引导表语从句时, 常在句中充当______, 表示：__________ which student is the best at English which (book) it is 哪一个 定语 连接代词：who(ever)、whom(ever)、whose、what(ever) 1. You can be __________ you want to be. 你可以成为你想做的任何人。 2. The question is __________ caused the accident. 问题是什么造成了这场事故。 3. The most important thing is __________ responsibility it is. 最重要的就是它是谁的责任。 4. This is ________ my father has taught me--to be an honest man. 这就是我父亲教给我的--做一个诚实的人。 总结：who(ever)、whom(ever)、whose、what(ever)在从句中作__________、_____________、________、________。 whoever what whose what 主语 宾语 表语 定语 从属连词： that、whether (不能用if) 1. My belief is __________I will succeed by working hard. 我的信念是通过努力我会成功。 2. The most pleasant thing of the rainy season is ________one can be entirely free from dust. 雨季最令人愉快的事情是完全没有灰尘。 3. The problem is ______________we can find them there. 问题是我们能否在那里找到他们。 whether that that 总结：that在从句中不充当成分，也没有实际意义，且不可省略；whether也不能省略，意思为：是否。 连接副词： when、where、why、how 1. This is ____________I don't agree with you. 这就是我不同意你的地方。 2. The question is __________we can get in touch with him. 问题是我们怎样才能和他联系上。 3. It rained heavily last night when I went back home. That is _________ I got wet through. 那就是为什么我被淋湿了。 总结：when、where、why、how引导从句，在从句中作________，表示时间、地点、原因、方式。 where how why 状语 This is __________I want. My English is limited. This is _______I hate reading English books. The village is _________ I used to spend my holiday. It is ___________ I really love the way he behaves. The trouble is __________ we are short of funds. My problem is __________ coat is suitable for me. I ' d like to start my own business—that’s ________ I want to do if I had the money. What I want to know is _______will support me. what where why because that which what who 即学即练 Bradley Hand ITC 11 表从易错点 1. 区分that 和 what 总结：that引导表语从句时，是连词，在从句中不作成分； what是连接代词，引导表语从句时，在从句中作主语、宾语或表语。 1. The fact is _______ we tend to make mistakes when we are nervous. 2. This is _________ I want to say. 3. The question is _________ caused the accident. 4. The trouble is _________ she has lost his address. that what that what 2. 区分because 和 why 1. She often comes late. That's ______________she has a baby to take care of. 她经常迟到。那是因为她有一个孩子要照顾。 2. She has a baby to take care of. That's _____________she often comes late. 她有一个孩子要照顾。那就是她经常迟到的原因。 总结：because引导表语从句时强调原因， why引导表语从句时强调结果。 why because 总结： 当表语从句陈述原因时： It, This, That 开头做主语，引导词用because. It/ This/That is because.... ②主语为reason（why） 时，引导词用that. The reason (why)....is that.... I do so many things for you. It is because I love you. She was late for class. That was because she missed the early bus. The reason was that you don’t trust her.  The reason why she was late was that she missed the early bus. 3. 区分that 和 because Bradley Hand ITC 15 1.He is careless and irresponsible. That was _______ he was fired. 2.He was fired. That was _________ he is careless and irresponsible. 3. The reason _______ he was fired was ________ he was careless and irresponsible. 4. I lost the game. The reason was_________ I underestimated my competitors. 5. The reason _______ I lost the game was _______ I underestimated my competitors. why because why that 即学即练 why that that Bradley Hand ITC 16 Practice！ 1.［2013·安徽］From space, the earth looks blue. This is_________ about seventy-one percent of its surface is covered by water. 2.［2014·四川］Grandma pointed to the hospital and said, "That’s __________I was born．" 3.［2014·北京］The best moment for the football star was_______ he scored the winning goal. 4. [2018·江苏] By boat is the only way to get here, which is_______ we arrived. 5.[2018·北京] This is my father has taught me —to always face difficulties and hope for the best. 6. [2021·新高考1卷] The amazing thing about the spring is ________ the colder the temperature gets, the hotter the spring! because where when how what that 【高考真题】 Everyone knew 1. Wendy was a famous writer, but no one knew 2. she came from and 3. she was born in 1961 was still a mystery. 4. they did know was 5. she was loved by poor people because she always helped 6. was in need of money. Wendy was generous and helpful，but some people thought she was chasing fame. Wendy said she didn't understand 7. they were so narrow-minded，but it didn't matter 8. others thought of her. She just wanted to do 9. she thought was right. She thought that was 10. the meaning of life lied. Fill in the blanks. that where whether What that whoever why what what(ever) where Thanks! 20 $$