人教版（2019）选择性必修第一册Unit5 Working the Land Grammar 课件(共31张PPT)

(共31张PPT)
课前候背
1. ________________n.可供选择的事物
2. _______________n.不足;缺少;短缺
3. ____________________________包括;包含;由...组成(或构成)
4. _________________n.想象；视力；视野
5. _________________________adj.传统的:习惯的
6. ___________________ adj. 热切的;十分强烈的;激烈的
7. _________________adj.本国的;国内的;家用的;家庭的
8. _________________vt. 使相信;使确信;说服
9. _________________n.假定；设定
10. ____________________ n.现实;实际情况;事实
11. ___________________n.vt 扩大；增加
12. ____________________adj.分布广的;普遍的;广泛的
13. ___________________相应地;转而;依次;轮流
14. _____________________adj.完全必要的;极其重要的
15. __________________把....用于;:献身;致力;专心
alternative
shortage
be comprised of
vision
conventional
intense
domestic
convince
assumption
reality
expand
widespread
in turn
essential
devote ... to
Noun Clause
Unit 5　
Working the Land
从句
名词性从句
形容词性从句
:定语从句
:状语从句
主语从句
宾语从句
表语从句
同位语从句
副词性从句
Who will win the match is still unknown.
I want to know what he has told you.
The fact is that we have lost the game.
The news that we won the game is exciting.
主语从句
宾语从句
表语从句
同位语从句
名词性从句的分类
探究发现
①However,what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat.
②How this could be done was a challenging question at the time.
③However,whether it was possible to develop a hybrid of self pollinating plants such as rice was a matter of great debate.
④Today,it is estimated that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan's hybrid strains,and his strains have allowed China's farmers to produce around 200 million tonnes of rice per year.
⑤ What impressed people most about Yuan Longping was his ongoing ability to fulfil his dreams.
[我的发现]
(1)以上红体部分在句中作________
(2)①⑤句中的what在从句中作_________
(3)②句中的how在从句中作__________
③句中的whether意为：_______
(4)④句中it是 __________, 正真的___________ 是后面的that引导的从句。
主语
主语
状语
是否
形式主语
主语
一、主语从句的定义
如果一个从句在句子中担当主语，那么这个从句就是主语从句。主语从句通常放在主句的谓语动词之前，有时也由形式主语it代替，而本身放在句子末尾。
语法精析
探寻规律1： 主语从句 主谓一致 问题
1. Whether the patient will be taken ______ unknown.
2. When and where the patient will be taken _____ unknown.
3. When the task can be finished and whether he can have
a rest ________ unknown.
4. What he wants most _________ staying with his family.
What they need _______ masks(口罩).
主句的谓语动词，大多数使用_______ (单数？复数？)
由两个连接词引导同一个主从，谓动使用____ (单数？复数？)
主语为and连接的两个主从时，谓动使用____ (单数？复数？)
what在主从中做宾语时，谓动由______决定单复数 (主语？表语？)
单数
单数
复数
表语
is
is
are
is
are
Complete the sentences using what, whether, where,
when, who, why, how or that.
1.( _____ is needed for success) is your hard work.
3.(_______________ we will go tomorrow )hasn’t been decided yet.
2.(__________ they will arrive )has been told to the teacher.
4.(____can join in the sport meet) is decided by the teacher.
5.(________ it will rain or not) is not clear.
7.(_____ the earth is a solid ball) is known to us all.
What
Where / Whether
Who
Whether
That
6. (______ the earth is becoming warm) is a good topic for research.
Why
When/How
主语从句应使用_________语序。
1. Where we will have a picnic should be discussed.
Where will we have a picnic should be discussed.
2. How we go for a picnic should be discussed.
How do we go for a picnic should be discussed.
Rule 3
陈述句
√
√
×
×
探寻规律2： 主语从句的语序
That all countries work together is important.
探寻规律3： 主语从句太长怎么办？
用一个 It 来解决问题！
It is important that all countries work together.
It＋be＋形容词/名词短语/过去分词/不及物动词＋ that从句
It is certain that the medicine will not bring about side effect , because thousand of patients have taken it.
形容词(necessary/likely/important/certain等
名词(短语)(a pity/a shame/no wonder等)
It is a pity that you missed such a good chance.
It’s said that he has gone to Shanghai.
过去分词(said/told/reported等)
It appears that he is worrying about something
不及物动词(seem, appear,
happen, matter等)
1) It is /系动词+ adj. +从句 常见的形容词有：
　 It’s certain that… 肯定…
　 It is possible that... 可能……
　 It is (un)likely that... 不可能……
It is obvious that… 很明显…
It is necessary/ important /natural /clear/ right
/strange /surprising /interesting /essential/... that…
_________________(可能)she will come back tomorrow.
_______________ (很明显)this measure is effective.
+(should) +do…
It is possible that
It is obvious that
2) It is /系动词+ n. +从句
　 It is a pity/shame that... 遗憾的是……
　 It is a surprise that…令人惊奇的是…
　 It is a fact/ a problem/a wonder/an honner/a surprise/no wonder难怪/good news/a good thing/a question /that… …是事实
It is common knowledge that… …是常识
_______________(很遗憾) we lost the match.
______________ (这是事实) he cheated in the exam.
It is a pity that
It is a fact that
3) It + be +过去分词+从句
It is said/told/heard that... 据说……
It is well known to all ... 众所周知……
It is reported/announced ... 据报道……
It is found out... 据查明......
It is estimated... 据估计……
It is believed//hoped/thought/considered...人们相信……
It is suggested that + (should）do... 人们建议……
It must be admitted… 必须承认……
It cannot be denied… 不可否认…… 　　
It must be pointed out… 需指出的是…… 　
*_________________(据报道)20 people were killed in the accident.
*__________________(建议)we should eat more vegetable and do more exercise.
It is reported that
It is suggested that
4) It +不及物动词+从句
It happened that... 碰巧……
It occurred to me that…我突然想起…
It seems/ appears that ... 看起来...
*____________________(我突然想起)I forget to send the letter.
It occurred to me that
It is very important that a student (should) learn English well.
学生学好英语很重要。
It is suggested that the meeting (should) be put off.有人建议会议延期召开。
It depends on the weather whether they are going shopping today.
他们今天是否去购物还得看天气情况。
For example，it can be proved that China has more people than any other country in the world.
举例来说，中国人口比世界上其他任何国家的人口都多，这是可以得到证实的。
It is no wonder that your students have made such great progress.
难怪你的学生们进步这么大。
二、主语从句的引导词
类别 例词 说明
从属连词 that，whether 两者在从句中均不作成分，只起连接作用；that无实义，whether表示“是否”。
连接代词 who，what，which，whoever，whatever等 在从句中作主语、宾语、表语、定语等成分。
连接副词 when，where，how，why等 在从句中作时间、地点、方式、原因状语等成分。
________________is more water.(连接代词what在从句中作need的宾语)
我们需要的是更多的水。
_____________________________________________depends on the traffic.
我们是否能按时到达那里由交通情况而定。
______________________will take off depends much on the weather.
延迟的航班什么时候起飞主要取决于天气状况。
________________________________________________was never clear.
谁都不清楚那个人为什么没更早一点报告那起事故。
______________________________________is still unknown.
这封信是谁寄的尚不清楚。
What we need
Whether we can arrive there on time
When the delayed flight
Why the man hadn’t reported the accident sooner
Who the letter was from
考点警示
1.从句的语序：在任何情况下，主语从句都用陈述语序。
_________________________________will get the prize.
你们谁第一个到达这里谁就获奖。
2.主谓一致
(1)从句作主语时，主句的谓语一般用单数形式；但what和who引导主语从句时，有时主句谓语的数应与主句中作表语的名词保持一致。
______________________________________________has not been decided.
我们什么时候开运动会还没有确定。
______________________________________are books.他们需要的是书。
Whichever of you gets here first
When we shall have our sports meeting
What they need
(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。
________________________________________have not been decided yet.
他们什么时候动身以及要去哪里还没定下来。
_________________________________is a story of struggle and success.
他如何及为什么来到这个城市是一个充满奋斗和成功的故事。
When they will start and where they will go
How and why he came to this city
3.whether引导的主语从句，如果用了形式主语it，引导词whether可以换成if。如果whether从句在句首或后面有or not时，不能用if替换。
Whether genetically-modified food does us harm remains to be seen.
＝It remains to be seen whether/if genetically-modified food does us harm.
转基因食物对我们是否有害有待观察。
4.引导词that在主语从句中不充当句子成分，也没有含义，不可以省略；what在主语从句中可作主语、宾语、表语或者定语，有具体的含义。
What caused the accident was a man lying on the ground.
引起这起事故的是一个躺在地上的男人。
That she was at the entrance to the cinema then was a big surprise to me.
她当时在电影院入口处对我来说是一件让我大吃一惊的事。
返 回
定 义
主语从句
引导词
形式主语
主谓一致
总 结
作用，位置
从属连词，连接代词，连接副词
单个主语从句-单数
多个主语从句-复数
It＋be＋形容词/名词短语/过去分词/不及物动词＋ that从句
语序
陈述语序
连接词
1.从属连词
2.连接代词
3.连接副词
Noun
clause
类型和功能
1.主语从句 （主语）
2.宾语从句 （宾语）
3.表语从句 （表语）
4.同位语从句 （同位语）
注意事项
1.陈述语序
2.主谓一致
3. whether/ if 区别
Summarize
Definition: 名词或名词短语可以在句中充当主语、表语、宾语、同位语。当这些名词或名词短语由一个句子替代时，就是名词性从句。名词性从句是在句子中起名词作用的句子。根据在句中不同的语法功能，可以分为四类。
Ⅰ.单句语法填空
1.Every year， makes the most beautiful kite will win a prize in the Kite Festival.
2.It is often the case anything is possible for those who hang on to hope.
3.Your support is important to our work. you can do helps.
4. we understand things has a lot to do with what we feel.
5. Li Bai，a great Chinese poet，was born is known to the public，but some won’t accept it.
6.Exactly the potato was introduced into Europe is uncertain，but it was probably around 1565.
达 标 检 测
当堂检测 基础达标演练
whoever
that
Whatever
How
Where
when
Ⅱ.完成句子
7. in his article was unknown to the general readers.
文章中他所提及的内容一般读者不知道。
8.The villagers have already known is rebuilding the bridge.
村民们已经知道我们要做的事是重建这座桥。
9.It matters little ，but is how he lives.
一个人怎么死的不太重要，但更重要的是他是如何活着的。
What he referred to
what we’ll do
how a person dies
what matters much more
10. whether the newly formed committee’s policy can be put into practice.
新组建的委员会的政策是否会付诸实施还有待观察。
11. breaks the window will have to pay for it.
你们当中无论哪一个打破窗户都必须赔偿。
返 回
It remains to be seen
Whichever one of you
Homework
1.[2020.全国Ⅱ卷] It’s been reported __________76% employees in some western countries are using emojis at work.
2. (2019全国卷Ⅰ)While they are rare north of 88°，there is evidence ________ they range all the way across the Arctic, and as far south as James Bay in Canada.
3. (2018全国卷Ⅲ)I’m not sure ________ is more frightened, me or the female gorilla(大猩猩) that suddenly appears out of nowhere.
4. [2020.江苏卷] It is not a problem ________ we can win the battle; it’s just a matter of time.
5. [2019.全国Ⅰ卷] _______ you need is a great teacher who lets you make mistakes.
6. (2020全国新高考I）Write a poem about ________ courage, determination, and strength have helped you face challenges in your life.
7. (2020·北京)So the next time I see that person I also see the name on his or her face, and that is _________I never forget a name.
that
whether
What
how
Consolidation:
that
who
why
It was reported ______ there was an accident at the corner of Roman Street this morning. No one saw ______ on earth happened then. A car ran into a truck but fortunately, nobody got injured. ______ is responsible for the accident is still under investigation. The police are uncertain about ______ the driver is guilty. ______the police should do now is ______they must find out what led to the accident. They said it was difficult for them to judge because ______ the accident happened was not clear.
Perhaps the reason was ______ the driver was too tired to stop the car in time. The driver didn't admit the fact ______ he was driving too fast at the turning. The police doubted ________ what he said was true and decided to make a further investigation.
Consolidation:
that
what
Who
whether
What
that
how
that
that
whether
Thanks