Unit 5 A delicate world Period 2 Gramma-- Using Language 课件 外研版 选择性必修二
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| 名称 | Unit 5 A delicate world Period 2 Gramma-- Using Language 课件 外研版 选择性必修二 |  | |
| 格式 | pptx | ||
| 文件大小 | 3.2MB | ||
| 资源类型 | 试卷 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-12-29 17:13:19 | ||
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(共29张PPT)
Unit 5 A Delicate World
Using Language
新外研选择性必修Book 2
-
1. What's in the picture 图画里是什么 --- _____ is a cat. 是一只猫。
2. _________often rains here in summer.这里夏天时常下雨。(指天气)
3. make _____成功，做到 take______easy 放轻松
4. ______ turned out that they developed an immunity to the virus.
5._______was I that/who met him.
6.No visitors would think it ______ (surprise) that the island is a UNESCO World Heritage Site.
7.Experts felt it necessary ________(come) up with a plan to remove all the rabbits from the island.
8. This incident made it clear________the rat, mouse and rabbit problem needed solving once and for all.
9. …but we humans owe it ______ the island to give it a happy ending.
It
It
it
it
It
It
surpring
to come
that
to
Learning objectives
In this class, you will
distinguish the usage of it as an empty object by analysing the sentences from reading passage；
practise using it as an empty object correctly.
Look at the sentences and answer the questions.
Presentation
a. No visitors would think it surprising that the island is a UNESCO World Heritage Site.
b. No visitors would think that island being a UNESCO World Heritage Site is surprising.
1. What does “it” refer to in sentence (a)
In sentences (a) refers to “that the island is a UNESCO World Heritage Site”
Look at the sentences and answer the questions.
Presentation
c. Experts felt it necessary to come up with a plan to remove all the rabbits from the island.
d. Experts felt to come up with a plan to remove all the rabbits from the island was necessary.
2. What does “it” refer to in sentence (c)
In sentences (c) refers to “to come up with a plan to remove all the rabbits from the island ”
Look at the sentences and answer the questions.
Presentation
a. No visitors would think it surprising that the island is a UNESCO World Heritage Site.
b. No visitors would think that island being a UNESCO World Heritage Site is surprising.
c. Experts felt it necessary to come up with a plan to remove all the rabbits from the island.
d. Experts felt to come up with a plan to remove all the rabbits from the island was necessary.
3. What is the difference between the sentences in each group
When the object of a sentence is a that-clause (b)
or an infinitive(d), we sometimes use “it” as an empty object and put the real object later to keep balance. For example, sentence (a) uses it as the empty object of “think”, referring to the real obiect: “the island is a UNESCO World Heritage Site”. Sentence (b) uses that-clause as the object of “think”.
8. This incident made it clear that the rat, mouse and rabbit problem needed solving once and for all.
9. ...but we humans owe it to the island to give it a happy ending.
Notes:
To balance sentence structure, the author used an empty object to replaces too long infinitive structures or object clause.
It as an empty object
it 作形式宾语
1. We think it our duty to clean our classroom every day.
2. He felt it useless arguing with him.
3. I find it amazing that they're still together.
Read the sentences below and summarise its use in your own words.
Summary
1. We think it our duty to clean our classroom every day.
2. He felt it useless arguing with him.
3. I find it amazing that they're still together.
it作形式宾语,可用来代替不定式短语, 动词-ing或从句。
当不定式（短语）、动名词（短语）或从句在句子中作宾语时，为保持平衡，避免句式结构的混乱，常用it作形式宾语，而将真正的宾语放在句尾。此时it只起引导作用，无意义。
4.People felt it impossible for man to fly into outer space decades ago.
it作形式宾语的句式：
S + V + it+
adj.
n
+
(for sb) to do sth..
doing sth
从句
k F C
think, believe, make, find, consider, feel, etc.
S + V + it + no good + doing sth.
no use
useless
no point(无意义)
a waste of
例：I think it no use talking about it with them.
it作形式宾语的句式：
1.Our school has made______a rule______ every student wears uniforms at school.
2. We believe _____ necessary ________ we practice our spoken English every day.
3. We think it no use _________ . (complain)
4. We found _____ impossible ________ (finish) the work on time.
5. She thinks_____ important ________we try to do some housework after school.
it
that
it
that
complaining
it
to finish
it
that
二、It作形式宾语的特殊结构
通常意义的it作形式宾语主要指的是真正的宾语为不定式、动名词、从句等且形式宾语it后
跟有宾语补足语的情形,但以下几类形式宾语比较特殊,其后没有宾语补足语。
情景导学1
I have it that they are planning to move to a new city.我听说他们计划搬到一座新城市。
I take it that we are to leave early.我认为我们会很早动身。
用法归纳1
上述句式为:主语+动词+it+that从句。能用于此句式的常见动词有take、have、put等。
情景导学2
I’d appreciate it if she offered to help.
如果她主动提出帮忙,我会非常感激。
I hate it when she calls me at work—I’m always too busy to carry on a conversation with her.
我讨厌上班时她给我打电话——我总是太忙而没时间和她聊天。
用法归纳2
上述句式为:主语+动词+it+when/if从句。能用于此句式的常见动词有hate、enjoy、love、appreciate、like、dislike、prefer等。
情景导学3
You may rely on it that he’ll come to meet you.
你可以相信,他会来见你的。
He insists on it that I go with him.他坚决要我和他一道去。
用法归纳3
上述句式为:主语+(“动词+介词”形式的)动词短语+it+that从句。常见的用于此句式的动词
短语有 、depend on、 、stick to、see to等
rely on
insist on
情景导学4
I owe it to you that I can make so much progress.我能取得那么大的进步该归功于你。
Human beings took it for granted that their brains held all the solutions.人类理所当然地认为,他们的大脑拥有所有的解决方案 (2019江苏)
.
用法归纳4
上述句式为:含有it的动词短语+that从句。常见的用于此句式的动词短语有 、 、bring it to one’s attention等。
owe it to sb
take it for granted
情景导学5
He made it known to everyone that he was right.
他让每个人都明白他是对的。
.
用法归纳5
上述句式为:动词+it+过去分词+从句。
Practice
单句语法填空
6.(2022新高考Ⅰ)Later, our jaws changed to an overbite structure, making easier to produce such sounds.
7.(2022新高考Ⅰ)That was why none of the children thought
unusual that David had decided to join the cross-country team.
8.(2022全国甲)Mexicans consider inappropriate to eat with
utensils, instead preferring to use their hands.
9.(2020天津)And you might find it relaxing (bring) your small kid to a half-hour Story Time while you sit quietly in a corner with a good book.
it
it
it
to bring
Practice
10.The professor considers it no good (read) without understanding.
11.I like when I can lie on the beach enjoying a holiday.
12.Legend has it he comes to the world to save the world.
13.Why don’t you bring to his attention that you are too
ill to work on
14. Don’t take it for granted if you’re in trouble, others
will help you.
reading
it
that
it
that
It is not easy 1._______ (learn) English though many people think 2.___ easy. Once I found it difficult 3. ____________ (memorise) English words when I studied English.I even hated it 4. _____ I attended an English class every day. Do you find it hard 5. _________ (learn) English Last year, my best friends in America gave me some advice on 6.________ (study) English. When you study a foreign language,
Fill in the blanks.
to learn
it
to memorise
when
to learn
studying
Practice
you should not depend on it 7. _____ others will help you. I think it useless 8. ____________ (complain) about how difficult it is. I think it worthwhile 9. ___________ (spend) more time to communicate with native speakers. And the more you learn English, the more confident you 10.________ (be). Finally, you will make rapid progress in English.
that
complaining
spending/to spend
will be
Translate the following sentences.
我认为保护环境非常重要。
I think it very important_________________________.
以前我们总是理所当然地认为自然资源取之不尽，这对大自然造成了巨大的伤害。
We ____________________that the natural resources were endless, which caused great harm to nature.
我们一定要确保采取有效措施阻止污染。
We should see to_____that effective measures should be taken to prevent pollution.
to protect the environment
took it for granted
it
Rewrite the underlined parts using it as an empty object.
The red-eared slider, a species of freshwater turtle, is native to the Southern United States and Northern Mexico. Due to its cute appearance, many people think keeping this turtle as a pet is a good idea. Recent years have seen more and more pet sliders escaping or being released from homes, and some owners believe to release them into the wild is no big issue.
many people think it a good idea to keep this turtle as a pet.
believe it no big issue to release them into the wild
Practice
These days, people have found to release these turtles into the wild is a threat to other species.
Experts consider owners keeping their pets in an enclosed area important, and anyone unable
to keep their pets should take them to
an appropriate animal shelter.
people have found it a threat to other species to release these turtles into the wild
Expects consider it important for owners to keep their pets in an enclosed area
Look at the pictures of the Saihanba National Forest Park and describe its changes using it as an empty object where appropriate. You may refer to the words and expressions in the table for help.
1960s
present day
Production
nouns / adjectives to do / that
breakthrough impossible likely unrealistic … grow
investigate
plant trees
transform
…
I think it a breakthrough in ecological
science to turn a desert into a forest…
eg. I think it a breakthrough to transform a desert into a forest.
Possible answers:
1. I believe it likely that more volunteers will help plant more trees around the park.
2. I find it impossible to investigate all the living species in the park at present.
3. I feel it unrealistic for the local people to grow rice and wheat for gian industry.
Work in groups. Describe how a place you know has changed using it as an empty object where appropriate.
Production
Thank you!
Unit 5 A Delicate World
Using Language
新外研选择性必修Book 2
-
1. What's in the picture 图画里是什么 --- _____ is a cat. 是一只猫。
2. _________often rains here in summer.这里夏天时常下雨。(指天气)
3. make _____成功，做到 take______easy 放轻松
4. ______ turned out that they developed an immunity to the virus.
5._______was I that/who met him.
6.No visitors would think it ______ (surprise) that the island is a UNESCO World Heritage Site.
7.Experts felt it necessary ________(come) up with a plan to remove all the rabbits from the island.
8. This incident made it clear________the rat, mouse and rabbit problem needed solving once and for all.
9. …but we humans owe it ______ the island to give it a happy ending.
It
It
it
it
It
It
surpring
to come
that
to
Learning objectives
In this class, you will
distinguish the usage of it as an empty object by analysing the sentences from reading passage；
practise using it as an empty object correctly.
Look at the sentences and answer the questions.
Presentation
a. No visitors would think it surprising that the island is a UNESCO World Heritage Site.
b. No visitors would think that island being a UNESCO World Heritage Site is surprising.
1. What does “it” refer to in sentence (a)
In sentences (a) refers to “that the island is a UNESCO World Heritage Site”
Look at the sentences and answer the questions.
Presentation
c. Experts felt it necessary to come up with a plan to remove all the rabbits from the island.
d. Experts felt to come up with a plan to remove all the rabbits from the island was necessary.
2. What does “it” refer to in sentence (c)
In sentences (c) refers to “to come up with a plan to remove all the rabbits from the island ”
Look at the sentences and answer the questions.
Presentation
a. No visitors would think it surprising that the island is a UNESCO World Heritage Site.
b. No visitors would think that island being a UNESCO World Heritage Site is surprising.
c. Experts felt it necessary to come up with a plan to remove all the rabbits from the island.
d. Experts felt to come up with a plan to remove all the rabbits from the island was necessary.
3. What is the difference between the sentences in each group
When the object of a sentence is a that-clause (b)
or an infinitive(d), we sometimes use “it” as an empty object and put the real object later to keep balance. For example, sentence (a) uses it as the empty object of “think”, referring to the real obiect: “the island is a UNESCO World Heritage Site”. Sentence (b) uses that-clause as the object of “think”.
8. This incident made it clear that the rat, mouse and rabbit problem needed solving once and for all.
9. ...but we humans owe it to the island to give it a happy ending.
Notes:
To balance sentence structure, the author used an empty object to replaces too long infinitive structures or object clause.
It as an empty object
it 作形式宾语
1. We think it our duty to clean our classroom every day.
2. He felt it useless arguing with him.
3. I find it amazing that they're still together.
Read the sentences below and summarise its use in your own words.
Summary
1. We think it our duty to clean our classroom every day.
2. He felt it useless arguing with him.
3. I find it amazing that they're still together.
it作形式宾语,可用来代替不定式短语, 动词-ing或从句。
当不定式（短语）、动名词（短语）或从句在句子中作宾语时，为保持平衡，避免句式结构的混乱，常用it作形式宾语，而将真正的宾语放在句尾。此时it只起引导作用，无意义。
4.People felt it impossible for man to fly into outer space decades ago.
it作形式宾语的句式：
S + V + it+
adj.
n
+
(for sb) to do sth..
doing sth
从句
k F C
think, believe, make, find, consider, feel, etc.
S + V + it + no good + doing sth.
no use
useless
no point(无意义)
a waste of
例：I think it no use talking about it with them.
it作形式宾语的句式：
1.Our school has made______a rule______ every student wears uniforms at school.
2. We believe _____ necessary ________ we practice our spoken English every day.
3. We think it no use _________ . (complain)
4. We found _____ impossible ________ (finish) the work on time.
5. She thinks_____ important ________we try to do some housework after school.
it
that
it
that
complaining
it
to finish
it
that
二、It作形式宾语的特殊结构
通常意义的it作形式宾语主要指的是真正的宾语为不定式、动名词、从句等且形式宾语it后
跟有宾语补足语的情形,但以下几类形式宾语比较特殊,其后没有宾语补足语。
情景导学1
I have it that they are planning to move to a new city.我听说他们计划搬到一座新城市。
I take it that we are to leave early.我认为我们会很早动身。
用法归纳1
上述句式为:主语+动词+it+that从句。能用于此句式的常见动词有take、have、put等。
情景导学2
I’d appreciate it if she offered to help.
如果她主动提出帮忙,我会非常感激。
I hate it when she calls me at work—I’m always too busy to carry on a conversation with her.
我讨厌上班时她给我打电话——我总是太忙而没时间和她聊天。
用法归纳2
上述句式为:主语+动词+it+when/if从句。能用于此句式的常见动词有hate、enjoy、love、appreciate、like、dislike、prefer等。
情景导学3
You may rely on it that he’ll come to meet you.
你可以相信,他会来见你的。
He insists on it that I go with him.他坚决要我和他一道去。
用法归纳3
上述句式为:主语+(“动词+介词”形式的)动词短语+it+that从句。常见的用于此句式的动词
短语有 、depend on、 、stick to、see to等
rely on
insist on
情景导学4
I owe it to you that I can make so much progress.我能取得那么大的进步该归功于你。
Human beings took it for granted that their brains held all the solutions.人类理所当然地认为,他们的大脑拥有所有的解决方案 (2019江苏)
.
用法归纳4
上述句式为:含有it的动词短语+that从句。常见的用于此句式的动词短语有 、 、bring it to one’s attention等。
owe it to sb
take it for granted
情景导学5
He made it known to everyone that he was right.
他让每个人都明白他是对的。
.
用法归纳5
上述句式为:动词+it+过去分词+从句。
Practice
单句语法填空
6.(2022新高考Ⅰ)Later, our jaws changed to an overbite structure, making easier to produce such sounds.
7.(2022新高考Ⅰ)That was why none of the children thought
unusual that David had decided to join the cross-country team.
8.(2022全国甲)Mexicans consider inappropriate to eat with
utensils, instead preferring to use their hands.
9.(2020天津)And you might find it relaxing (bring) your small kid to a half-hour Story Time while you sit quietly in a corner with a good book.
it
it
it
to bring
Practice
10.The professor considers it no good (read) without understanding.
11.I like when I can lie on the beach enjoying a holiday.
12.Legend has it he comes to the world to save the world.
13.Why don’t you bring to his attention that you are too
ill to work on
14. Don’t take it for granted if you’re in trouble, others
will help you.
reading
it
that
it
that
It is not easy 1._______ (learn) English though many people think 2.___ easy. Once I found it difficult 3. ____________ (memorise) English words when I studied English.I even hated it 4. _____ I attended an English class every day. Do you find it hard 5. _________ (learn) English Last year, my best friends in America gave me some advice on 6.________ (study) English. When you study a foreign language,
Fill in the blanks.
to learn
it
to memorise
when
to learn
studying
Practice
you should not depend on it 7. _____ others will help you. I think it useless 8. ____________ (complain) about how difficult it is. I think it worthwhile 9. ___________ (spend) more time to communicate with native speakers. And the more you learn English, the more confident you 10.________ (be). Finally, you will make rapid progress in English.
that
complaining
spending/to spend
will be
Translate the following sentences.
我认为保护环境非常重要。
I think it very important_________________________.
以前我们总是理所当然地认为自然资源取之不尽，这对大自然造成了巨大的伤害。
We ____________________that the natural resources were endless, which caused great harm to nature.
我们一定要确保采取有效措施阻止污染。
We should see to_____that effective measures should be taken to prevent pollution.
to protect the environment
took it for granted
it
Rewrite the underlined parts using it as an empty object.
The red-eared slider, a species of freshwater turtle, is native to the Southern United States and Northern Mexico. Due to its cute appearance, many people think keeping this turtle as a pet is a good idea. Recent years have seen more and more pet sliders escaping or being released from homes, and some owners believe to release them into the wild is no big issue.
many people think it a good idea to keep this turtle as a pet.
believe it no big issue to release them into the wild
Practice
These days, people have found to release these turtles into the wild is a threat to other species.
Experts consider owners keeping their pets in an enclosed area important, and anyone unable
to keep their pets should take them to
an appropriate animal shelter.
people have found it a threat to other species to release these turtles into the wild
Expects consider it important for owners to keep their pets in an enclosed area
Look at the pictures of the Saihanba National Forest Park and describe its changes using it as an empty object where appropriate. You may refer to the words and expressions in the table for help.
1960s
present day
Production
nouns / adjectives to do / that
breakthrough impossible likely unrealistic … grow
investigate
plant trees
transform
…
I think it a breakthrough in ecological
science to turn a desert into a forest…
eg. I think it a breakthrough to transform a desert into a forest.
Possible answers:
1. I believe it likely that more volunteers will help plant more trees around the park.
2. I find it impossible to investigate all the living species in the park at present.
3. I feel it unrealistic for the local people to grow rice and wheat for gian industry.
Work in groups. Describe how a place you know has changed using it as an empty object where appropriate.
Production
Thank you!