高中英语人教版 (2019)选择性必修 第一册Unit 5 Working the Land精品ppt课件

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That the earth runs rund the sun is a fact.
Whether it is ging t rain is still unknwn.
Observe the fllwing sentences and the feature f the nun clauses.
What Yuan Lngping said impressed me a lt.
Where we will travel after graduatin is nt decided.
1.What Yuan Lngping really cared abut was nt mney r celebrity.2. That Yuan Lngping had realised his dream f seawater rice surprised the whle wrld.3. It surprised the whle wrld that Yuan Lngping had realised his dream f develping seawater rice.
subject clauses
the real subject
it is the frmal subject
Subject Clauses
概念：复合句中用作主语的名词性从句叫作主语从句。
1.连词that在引导名词性从句时本身没有意义，在从句中不担任任何句子成分，但引导主语从句时不能省略。
e.g. 1）That yu didn't knw the rules wn't be an excuse fr yur failure. 2）That the earth is rund is a fact. 3）As I searched the name Linda n the Internet，it became evident that there're tw with the same name wh lk cmpletely different.
考点总结1）that引导主语从句位于句首时，本身无意义，但是不可省略。2）that从句作主语时，常用it作形式主语，常见的句型有：
e.g. It is annunced in tday's newspaper that Xi Jinping will pay a visit t Russia next week
①It＋be＋形容词(bvius，natural，surprising，etc.)＋that从句②It＋be＋名词词组(n wnder，an hnr，a pity，etc.)＋that从句③It＋ be＋过去分词(said，reprted，thught，etc.)＋that从句
2.whether(注意不能用if)在主语从句中表示的意思为：是否。
e.g. 1）Whether she will win the prize is still unknwn. 2）Whether he will cme is nt decided. 3）It remains t be seen whether the newly frmed cmmittee's plicy can be put int practice.
3.连接代词what（什么）, wh（谁）, which（哪一个）, —ever（无论）在从句作主、宾、表语等。
e.g. 1）Whever is the last t leave shuld turn ff the lights. 2）What sme scientists have fund is that their lng-term ues can smetimes harm bth the land and peple's health. 3）Whever wants t stay in a htel has t pay their wn way.
考点总结1．what引导名词性从句时，意为“什么”或“……的”，在从句中用来作主语、宾语、表语或定语。2．wh－ever引导名词性从句时，其作用等同于其前面的连接词，意为“任何……”或“无论……”，含有强调的语气。
e.g. 1）What wrries us mst is wh let ut the secret. 2）Whever breaks the law shuld be punished.
4.连接副词when、hw、where、why，在主语从句中，表示的意思分别为：何时、怎样、何地、为什么。
e.g. 1）Hw this culd be dne was a gd questin. 2）Why she didn't shw up remains a puzzle. 3）Where Li Bai，a great Chinese pet，was brn is knwn t the public，but sme wn't accept it.
5. It作形式主语为保持句子平衡，常把主语从句后置，而用形式主语it代替，it作形式主语时常用于以下句型：
e.g. 1）It’s pssible that he has been t England. 2）It’s a pity that yu didn’t take part in my birthday party. 3）It seems that it is ging t rain. 4）It is suggested that the dangerus marathn (shuld) be cancelled.
(1)在“It + 系动词 + 形容词 + 主语从句”句型中,如果形容词为 necessary，imprtant , strange , natural等时,从句谓语动词常用“(shuld)+动词原形”。(2)在“It + 系动词 + 过去分词 + 主语从句”句型中,如果过去分词为suggest , advise,request,require等时,从句谓语动词使用“(shuld)+动词原形”。
1．从句要用陈述语序Hw the accident happened was still a puzzle.
2．注意主谓一致(1)从句作主语时，主句的谓语一般用单数形式。Whether he will g hme r nt after graduatin has puzzled him much.
(2)如果由and连接两个或两个以上的主语从句作主语时，谓语动词用复数； 由两个或多个连接词引导一个主语从句时，谓语动词用单数。When and where they will hld the meeting is nt clear.When they will start and where they will g have nt been decided yet.
7.主语从句连接词使用的判断方法：Step1（从第二个动词前）划出主语从句Step2 找出从句的谓语动词（观察其前后是否少主宾等成分）Step3 连词考虑顺序： 连接代词——连接副词——whether——that
e.g. this culd be dne was a gd questin. this culd be dne was a gd questin. Hw this culd be dne was a gd questin.
Match the sentences partes and translate them int Chinese.
Match the sentences partes and translate them int Chinese.1. D When these wheat farmers will jin this pilt experiment remains an unanswered questin. 翻译：
这些小麦农户什么时候会加入预实验仍然不得而知。
2. CHw we can find a suitable slutin t prduce sufficient fd while keeping the envirnment safe is an imprtant tpic fr us t research. 翻译：
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。
Match the sentences partes and translate them int Chinese.3. AWhat wrries many peple is that these chemicals may even cause cancer. 翻译：
令很多人所担心的是，这些化学制品甚至可能导致癌症。
4. E It amazed all f us that these vegetables can even be planted withut any sil thrugh this new technlgy. 翻译：
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。
Match the sentences partes and translate them int Chinese.5. BThat the lifestyle is slwer and healthier is the reasn why sme peple prefer t live in the cuntry rather than in the city. 翻译：
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. Then discuss whether the sentences with subject clauses can be paraphrased.Grandma has been cmplaining abut the vegetable sld in the supermarket, which have been grwn using chemical fertilisers. T her, that they lk beautiful n the utside is bvius. Hwever, what she is unhappy abut is the lwer nutritinal value and reduced flavur.
Tips:pay attentin t the wrds: that, whether, what,etc.
Nw that bth f my grandparents have retired frm their jbs in the city, hw they are ging t spend their retirement is an imprtant decisin fr them. Whether they can live a healthy life is the first thing they are cnsidering. S they have made up their minds t mve t the cuntryside, where they can live a green life.
What qualities d yu think make a persn like Yuan Lngping s successful?Have a discussin and prepare a presentatin. The fllwing pints and expressins may help yu.
Discuss the questin “What qualities d yu think make a persn like Yuan Lngping s successful?” in different grups，then chse ne t give a presentatin. We will chse the best grup and the best individual.
What qualities d yu think make a persn like Yuan Lngping s successful?Have a discussin and prepare a presentatin.
Pssible answer:What impresses me mst is that Yuan Lngping has succeeded in helping t feed s many peple. It is imprtant that he never gave up, despite many difficulties. That he succeeded in realising his dream is what makes him great.
1. ________wins the first place in the bicycle race will be awarded the gld medal.2. _________ my father has taught me is t always face difficulties and hpe fr the best.3. Every year, ______ makes the mst beautiful kite will win a prize in the Kite Festival.4. It is reprted ________ scientists have discvered the relatinship between scial media addictin and Never turn dwn a jb because yu think it’s t small. _____ it can lead is nt knwn t yu.
These are what we’ve learned in this passage.