Unit 5 Discovering Useful Structures ppt课件-（2019）新人教版高中英语选择性必修第一册.pptx

1、Discovering Useful Structures P53 Unit 5 Working the Land 找出下列句子中的主语。找出下列句子中的主语。 1. Why she didnt show up remains a puzzle. 2. What some scientists have found is that their long-term use can sometimes harm both the land and peoples health. 3. It is believed by some scientists that the long-term use

2、can sometimes harm both the land and peoples health. 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 r

3、ice. Subject Clauses 主语从句 u引导主语从句的关联词有三类：引导主语从句的关联词有三类： 1) 从属连词从属连词that 例: That they were true sisters was clear from the facial resemblance between them. 很明显, 她们的确是亲姐妹, 她们的脸 型很相似。 例: Whether hell come here isnt clear. 他是否会来这里还不清楚。 2) 从属连词从属连词whether 例: What she did is not yet known. 她干了什么尚不清楚。 例: H

4、ow this happened is not clear to anyone. 这事怎样发生的, 谁也不清楚。 3) 连接代词连接代词who, whom, whose, what, which, whoever, whatever, whichever；连接副词；连接副词 where, when, how, why。 u引导主语从句的关联词有三类：引导主语从句的关联词有三类： How he became a great scientist is known to us all. Is what you told me really true? Notice: What we need mos

5、t are books. u主语从句三要素主语从句三要素 从句用陈述语序从句用陈述语序 谓语动词一般用单数谓语动词一般用单数 不能省略关联词不能省略关联词 无论他说什么都不重要。 Whatever he says is of no importance. 无论谁说这话都不对。 Whoever says that is wrong Tip ：在主语从句中在主语从句中, 谓语一般用单数。谓语一般用单数。 Tip：what 与与that 在引导主语从句时的区别：在引导主语从句时的区别： what 引导主语从句时在从句中充当句子成分, 如主语、宾语、表语, 而that 则不然。 What you sa

6、id yesterday is right. That she is still alive is a consolation. 引导主语, 同位语, 表语从句的连词不可省略不可省略; it作形式宾语的宾语从句; 并列宾语从句中, 后面的从句引导词。 Tip：不可省略的连词：不可省略的连词： That she was chosen made us very happy. We heard the news that our team had won. The reason is that he is too careless. I think it necessary that you sho

7、uld read aloud. He told (that) his father had died and that he had to make a living by himself. 主语从句 同位语从句 表语从句 it作形式宾语的宾语从句 并列宾语从句 u用用it 作形式主语的结构作形式主语的结构 (1) It is 名词名词 从句从句. It is a fact that 事实是 It is an honor that 非常荣幸 It is common knowledge that 是常识 (2) It is 形容词形容词 从句从句. It is natural that 很自然

8、 It is strange that 奇怪的是 (3) It is 不及物动词不及物动词 从句从句. It seems that 似乎 It happened that 碰巧 It appears that 似乎 (4) It 过去分词过去分词 从句从句. It is reported that 据报道 It has been proved that 已证实 It is said that 据说 u用用it 作形式主语的结构作形式主语的结构 Match the sentence parts. 1 _ remains an unanswered question. 2 _ is an impo

9、rtant topic for 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 lif

10、estyle is slower and healthier C How we can find a suitable solution to produce sufficient food while keeping the environment safe D When these wheat farmers will join this pilot experiment E It amazed all of us that 1 When these wheat farmers will join this pilot experiment remains an unanswered qu

11、estion. 这些小麦农户什么时候会加入预试验仍然不 得而知。 2 How we can find a suitable solution to produce sufficient food while keeping the environment safe is an important topic for us to research. 如何能够找到一个合适的解决办法，在保证 环境安全的同时，生产足够的粮食，是一个 需要我们研究的重要课题。 3 What worries many people is that these chemicals may even cause cancer

12、. 令很多人担心的是，这些化学制品甚至可能 导致癌症。 4 It amazed all of us that these vegetables can even be planted without any soil through this new technology. 令我们所有人惊讶的是，通过这种新技术， 可以无土栽培这些蔬菜。 5 That the lifestyle is slower and healthier is the reason why some people prefer to live in the country rather than in the city.

13、有些人更喜欢住在乡下而非城市的原因是前 者生活节奏更慢、生活方式更健康。 Read the passage and underline all the subject clauses. Grandma has been complaining about the vegetables sold in the supermarket, which have been grown using chemical fertilisers. To her, that they look beautiful on the outside is obvious. However,what she is un

14、happy about is the lower nutritional value and reduced flavour. Now that both of my grandparents have retired from their jobs in the city, how they are going to spend their retirement is an important decision for them. Whether they can live a healthy life is the first thing they are considering. So

15、they have made up their minds to move to the countryside, where they can live a green life. Have a discussion and prepare a presentation. Group Work The following points and expressions may help you. his/her determination to tackle the crisis of his/her intense effort to overcome his/her dream to de

16、velop his/her love and care for he/she succeeded in he/she never gave up he/she is devoted to his/her determination to tackle the crisis of his/her intense effort to overcome his/her dream to develop his/her love and care for he/she succeeded in he/she never gave up he/she is devoted to Suggested An

17、swer What impresses me most is that Yuan Longping has succeeded in helping to feed so many people. It is important that he never gave up, despite many difficulties. That he succeeded in realising his dream is what makes him great. _hasnt been decided yet. 谁将去接他还没有确定(pick) 。 _ remains unknown. 我们是否能按

18、时完成工作还不知道(pick) 。 _ is none of my business. 你喜不喜欢他都与我无关(like)。 _is being discussed. 他将何时出国正在讨论之中 (abroad)。 _in learning English is enough practice. 英语学习中最重要的是足够的练习 (matter)。 Complete the following sentences. Who will pick him up Whether we can finish the work on time Whether you like him (or not) Wh

19、at matters most When he will go abroad It worried her a bit _. 她的头发正在变白让她有些担忧(turn)。 After Yang Liwei succeeded in circling the earth, _our astronauts walk in space. 杨利伟成功地环绕地球后，我们希望的是宇航 员在太空漫步(desire)。 _should be punished. 任何违法的人都应该被惩罚(break)。 _we can learn four foreign languages at the same time. 我们能同时学四门外语似乎不可能(seem)。 It seems impossible that Whoever breaks the law that her hair was turning grey its desired that Complete the following sentences. Thank you!