新人教选修性必修一Unit5DiscoveringUsefulStructuresP53课件

1、Discovering Useful Structures P53 Unit 5 Working the Land新人教选择性必修Book 1 Discovering Useful Structures 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 scie

2、ntists that the long-term use can sometimes harm both the land and peoples health. 找出下列句子中的主语。1. Why she didnt sWhat are the functions of the noun clauses italicised?What Yuan Longping really cared about was not money or celebrity.That Yuan Longping had realised his dream of seawater rice surprised

3、the whole world.It surprised the whole world that Yuan Longping had realised his dream of developing seawater rice.as SubjectWhat are the functions of the Subject Clauses主语从句 在英语中，有的从句在复合句中的作用 相当于名词，称作名词性从句。复合句 中用作主语的从句叫作主语从句。为了避免主语显得过长，尤其是陈述句 作主语从句时，可以用 it 作句子的形式 主语，把主语从句移到句子的末尾。Subject Clauses在英语中

4、，有的从句在复合句中的引导主语从句的关联词有三类：1) 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whether引导主语从句的关联词有三类：1) 从属连词that例: Th 例: What she did is not yet known. 她干了什么尚不清楚。例: How this happen

5、ed is not clear to anyone. 这事怎样发生的, 谁也不清楚。3) 连接代词who, whom, whose, what, which, whoever, whatever, whichever；连接副词 where, when, how, why。引导主语从句的关联词有三类： 例: What she did is not yeHow he became a great scientist is known to us all.Is what you told me really true?Notice:What we need most are books.主语从句三要

6、素从句用陈述语序谓语动词一般用单数不能省略关联词How he became a great scientis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 wrongTip ：在主语从句中, 谓语一般用单数。Tip：what 与that 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 said yesterday is right.That she is still alive is a conso

7、lation. 无论他说什么都不重要。Tip ：在主语从句中, 谓语一般用引导主语, 同位语, 表语从句的连词不可省略;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： 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 should read aloud.He told (that) his father ha

8、d 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引导主语, 同位语, 表语从句的连词不可省略;Tip：不可用it 作形式主语的结构(1) It is 名词 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 从句. It is natural that 很自然 It is strange that 奇怪的是用it 作形式主语的结构(1) It

9、 is 名词 从(3) It is 不及物动词 从句. It seems that 似乎 It happened that 碰巧 It appears that 似乎(4) It 过去分词 从句. It is reported that 据报道 It has been proved that 已证实 It is said that 据说用it 作形式主语的结构(3) It is 不及物动词 从句.用it 作形式 Match the sentence parts.1 _ remains an unanswered question. 2 _ is an important topic for u

10、s 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

11、 healthierC 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 Translate the completed sentences into Chinese. Match the sentence parts.1 _1 When these wheat farmers w

12、ill join this pilot experiment remains an unanswered question. 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。1 When these wheat

13、farmers wil3 What worries many people is that these chemicals may even cause cancer. 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 t

14、he reason why some people prefer to live in the country rather than in the city. 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。3 What worries many people is Read the passage and underline all the subject clauses.Grandma has been complaining about the vegetables sold in the supermarket, which have been grown u

15、sing chemical fertilisers.To her, that they look beautiful on the outsideis obvious. However,what she is unhappy aboutis 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 retirementis an import

16、ant decision for them.Whether they can live a healthy lifeis the first thing they are considering. So they have made up their minds to move to the countryside, where they can live a green life.Read the passage and underlineHave a discussion and prepare a presentation.What qualities do you think make

17、 a person like Yuan Longping so successful?Group WorkHave a discussion and prepare 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 develop his/her love and care for he/she succeeded in he/she never g

18、ave 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 The following points and expreSuggested AnswerWhat impresses me most is that Y

19、uanLongping 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.Suggested AnswerWhat impresses_hasnt been decided yet. 谁将去接他还没有确定(pick) 。_ remains unknown. 我们是否能按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