（新教材）人教版（2019）高中英语选择性必修第一册Unit5 Discover useful structures主语从句 ppt课件.pptx

1、 WORKING THE LAND Discover Useful StructuresUnit 5 Lead in Circle the simple subject in each sentence. Time flies. The boy didnt attend school today. You are a student. To find the missing book is not easy. Smoking is bad for you. Driving too fast is dangerous. Eat your dinner with a spoon. My favor

2、ite older brother, who just started tenth grade, rides his bike to school. You Lead-in Who will take part in the meeting has not been decided. How he became a great scientist is known to us all. What she said is true. That he is still alive is a good news to us. Where she is from is unknown. We can

3、see from these sentences that a sentence serves as subject, so we call it Subject Clause. Circle the subject in each sentence. Lead-in 主语从句考点归纳主语从句考点归纳 u 主语从句连接词的使用主语从句连接词的使用 u 主谓一致主谓一致 u 形式主语结构形式主语结构 u 主语从句的语序主语从句的语序 That he is still alive is a good news to us. Whether they would support us was a p

4、roblem. Who will take part in the meeting has not been decided. What she said is true. Where she is from is unknown. When they will start is not known yet. How he became a great scientist is known to us all. Why he was late is not important now. Find the words that link Subject Clauses Lead-in 引导主语从

5、句的引导主语从句的关联词关联词 从属连词从属连词 ( (不作成分）不作成分） 连接代词连接代词 （作成分）（作成分） 连接副词连接副词 （作状语）（作状语） what, who, whom, whose, which, wh+ever that, whether, when, where, how, why That he will pass the exam is certain. Whether he will pass the exam is uncertain. uthat _成分，成分，_意义，意义，_省略。省略。 uwhether _成分，成分，_意义，译为意义，译为_。 结论：结

6、论： 不做不做 是否是否 无无 不能不能 不做不做有有 主语从句的连接词有哪些？有什么功能？主语从句的连接词有哪些？有什么功能？ 1) 形式主语结构形式主语结构 注意注意: 上述例句中的主语从句都是放在句首上述例句中的主语从句都是放在句首, 但有时为了使句子结但有时为了使句子结 构平衡构平衡, 避免避免 “头重脚轻头重脚轻”, 常用常用 it 作形式主语作形式主语, 而把从句放在后面。而把从句放在后面。 That he will pass the exam is certain. It is certain that he will pass the exam. Whether he will

7、 pass the exam is uncertain. it is uncertain whether he will pass the exam. Practice: 1.That the earth moves around the sun is well known. It is well known that the earth moves around the sun. 2.That she has made such a mistake is a pity . It is a pity that she has made such a mistake. 3.Whether hel

8、l come here isnt clear. It isnt clear whether/if hell come here. 注意：注意： 1.主语从句位于句首时主语从句位于句首时,不能用不能用if 引导。引导。 2. 主语从句后置时主语从句后置时, 可以用可以用if引导。引导。 常用句型常用句型: 1) It is + adj. / n. +从句从句 It is a pity/shame that. 遗憾的是遗憾的是 It is possible that. 很可能很可能 It is unlikely that. 不可能不可能 2) It +不及物动词不及物动词+从句从句 It seem

9、s/appears that. 似乎似乎 It happened that. 碰巧碰巧 3) It + be +过去分词过去分词+从句从句 It is said that. 据说据说 It is known to all that. 众所周知众所周知 It is reported that. 据报道据报道 It is believed that. 据信据信;人们相信人们相信 It is suggested that. 有人建议有人建议 It must be pointed out that. 必须指出必须指出 It has been proved that. 已证明已证明. Who will

10、take part in the meeting has not been decided. What she said is true. Which book I shall choose hasnt been decided. Whoever breaks the law will be punished. uwho在主语从句中在主语从句中充当充当 _, 译译为为 _。 uwhat在主语从句中在主语从句中充当充当 _, 译译为为 _。 uwhich在主语从句中在主语从句中充当充当 _, 译译为为 _。 uwhoever在主语从句中在主语从句中充当充当 _, 译译为为 _。 结论：结论： 主

11、语主语谁谁 宾语宾语东西东西 定语定语哪一哪一 主语主语无论谁无论谁 When they will start is not known yet. Where she is from is unknown. Why he was late is not important now. How he became a great scientist is known to us all. uwhen在主语从句中在主语从句中充当充当 _, 译译为为 _。 uwhere在主语从句中在主语从句中充当充当 _, 译译为为 _。 uwhy在主语从句中在主语从句中充当充当 _, 译译为为 _。 uhow在主语

12、从句中在主语从句中充当充当 _, 译译为为 _。 结论：结论： 状语状语何时何时 状语状语何地何地 状语状语为什么为什么 状语状语怎样怎样 功能功能连接词连接词 不作成分不作成分that, whether 作主、宾、表、作主、宾、表、 what, who, whom, wh+ever 作定语作定语which, whose, 作状语作状语when, where, why, how Usage of the Conjunctions 缺什么补什么缺什么补什么 学法指导学法指导 依据依据“缺什么补什么缺什么补什么”原则确定正确的连词。原则确定正确的连词。 所谓所谓“缺什么补什么缺什么补什么”是指是指

13、从句从句与与连词连词之间的关之间的关 系。系。 如果句子中缺如果句子中缺主语主语，指，指人人用用who，指，指物物用用what。 如缺如缺宾语宾语，指，指人人用用whom，指，指物物用用what。 如缺如缺时间状语时间状语用用when；地点状语地点状语用用where。 原因原因状语状语用用why；方式状语方式状语用用how。 如缺如缺定语定语用用what或或which。 如如什么都不缺什么都不缺用用that，Whether表表“是否是否”。 Whether they would support us was a problem. Who will take part in the meetin

14、g has not been decided. What she said is true. Where she is from is unknown. When they will start is not known yet. How he became a great scientist is known to us all. Why he was late is not important now. Find the words order of Subject Clauses Lead-in 结论：结论： 主语从句用主语从句用_语序语序。 陈述陈述 That he will pass

15、 the exam is certain. Which book I shall choose hasnt been decided. How she keeps healthy is a secret. 当一个句子的主语是从句时，该句子的谓语当一个句子的主语是从句时，该句子的谓语 用用 _。 结论：结论： 单数单数 主谓一致主谓一致 注意注意 What I want is the book. What I want are some books. 结论：结论： what 引导的从句做主语时，谓语的单复数取引导的从句做主语时，谓语的单复数取 决它决它的的 _。 观察下列两个句子的谓语，观察下列

16、两个句子的谓语， 并尝试得出结论并尝试得出结论 表语表语 1. 【全国全国I卷卷】 _ you need is a great teacher who lets you make mistakes. 2. 【北京卷卷】 Every year, _ makes the most beautiful kite will win a prize in the Kite Festival. exercise What whoever What she saw surprised her! see surprise the cat do made What the cat did made the ba

17、by cry. What cry report, get the highest points, match It is reported that Zhu Ting got the highest points in the match. It makes the teacher angry that the child doesnt know the answer. teacher angry Dont know the answer Match the sentence parts. Pay attention to how the subjects are introduced dif

18、ferently. A. What worries many people B. That the lifestyle is slower and healthier C. How we can find a suitable solution to produce sufficient food D. When these wheat farmers will join this pilot experiment E. It amazed all of us that 1. remains an unanswered question. 2. is an important topic fo

19、r us to research. 3. is that these chemicals may even cause cancer. 4. these vegetables can even be planted without any soil through this new technology. 5. is the reason why some people prefer to live in the country rather than in the city. A. What worries many people B. That the lifestyle is slower and healthier C. How we can find a suitable solution to produce sufficient food D. When these wheat farmers will join this pilot experiment E. It amazed all of us that D C A E B