外研版（2019）选择性必修 第一册Unit 5 Revealing natur Using Language 课件(共32张PPT)
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| 名称 | 外研版（2019）选择性必修 第一册Unit 5 Revealing natur Using Language 课件(共32张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 9.2MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-11-29 11:10:41 | ||
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(共32张PPT)
Unit 5 Revealing nature
Using language
1. declare
declare...( to be...)
declare war on...
declare that...
declare sth. illegal
declare independence from
declare oneself to be...
It is declared that...
练习：The workers declared _______ the offer of increased pay and holidays.
Vocabulary
for
宣布/宣称……(为……)
向……宣战
宣布/宣称……
宣布……非法
宣布摆脱……独立
宣称自己……
据宣布……
2. blame
blame sb./sth. for sth.
Blame sb. for (doing) sth.
take/accept the blame ( for sth.)
put/lay/place the blame on sb.
the blame lies with sb.
练习：Marie still blames herself _______ Patrick's death.
Vocabulary
for
把某事归咎于某人/某物
因(做)某事而责备某人
承担(某事的)责任
把责任归于某人
责任在于某人
3. decline
decline by...
decline to...
decline in...
decline to do sth.
练习：Car sales have declined _________ a quarter.
Vocabulary
by
减少了……
减少到……
在……方面降低
拒绝做某事
4. be harmful to
do harm to sb./sth.= do sb./sth. harm
cause sb./sth. harm
suffer harm
do more harm than good
there is no harm in doing sth.
mean no harm/not mean any harm
练习：Try to reduce the use of chemicals that are _________ (harm) to the environment.
Vocabulary
harmful
对某人/某物有害
对某人/某物造成伤害
受到损害
弊大于利
不妨做某事，做某事没有坏处
无意伤害没有恶意
5. be home to
make sb. feel at home
be feel at home
make yourself at home
find a home for sth.
hit/strike home
(both) at home and abroad
make ones home
练习：Warwick is home _________ some 550 international students.
Vocabulary
使某人感到宾至如归
舒适自在，不拘束
别拘束
找地方安置某物
(言语等)正中要害；使人接受(或认清)现实
在国内外
定居，居住
to
1
PART ONE
Leading-in
Do Activity 1 on Page 70.
Look at the sentences from the reading passage and answer the questions.
In sentence (a), which action happened first, "suspected" or "evolved from a common ancestor"
In sentence (b), which action happened first, "refused to believe" or "evolved from lower forms of life"
What does the structure had done indicate
Suggested answers:
In sentence (a), "evolved from a common ancestor" happened first.
In sentence (b), "evolved from lower forms of life" happened first.
It indicates the action happened before a certain past action.
2
PART two
Presentation
She had worked for twelve hours by 8:00 p.m.
She had learned English before she came to Britain.
By the end of last month, we had finished half of the project.
Look at the following sentences.
What can you find
构成：had+过去分词
标志性时间状语
Past perfect——过去完成时
构成：
过去完成时由“助动词 had (通用于各种人称和数)+过去分词”构成。
用法：
①表示在过去某一时间或某一动作之前已经完成的动作或存在的状态
②过去某一时刻之前发生的动作或状态持续到过去某个时间或还要持续下去
③与过去事实相反的虚拟条件从句
④固定句型
⑤未曾实现的希望、打算、意图、诺言、想法等
区分：
①与现在完成时的区别
②与一般过去时的区别
过去完成时表示在过去某一时间或某一动作之前已经完成的动作或存在的状态。
I had finished my homework before supper.
我在晚饭前就把作业做完了。
还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或还要持续下去，常用的时间状语有by then，by the end of 等。
By the end of last week, she had learned 10 English songs
到上周为止，她已经学习了10 首英文歌曲。
用法
用于表示与过去事实相反的虚拟条件从句中。
If he had seen you yesterday, he would have asked you about it.
假如他昨天看到你，他就会问你这件事了。
过去完成时也用于hardly...when...，no sooner…than...， It was the first time+that(从)等一些固定句型中。
He had no sooner left the room than they began to talk about him.
他刚离开房间，他们就议论起他来。
用法
表示未曾实现的希望、打算、意图、诺言、想法等，常用过去完成时。
I had hoped to see her again.
我本希望再见她一面。(没能如愿)
用法
过去完成时与现在完成时的区别
现在完成时表示的动作发生在过去，以现在的时间为基点，但侧重对现在产生的结果或造成的影响，与现在有关，其结构为“助动词 have (has)+过去分词”；过去完成时则是一个相对的时态，以过去时间为基点，它所表示的动作不仅发生在过去，更强调“过去的过去”，只有和过去某时或某动作相比较时，才用到它。
I have learned 1,000 English words so far.
到目前为止我已经学会了1000个英语单词。
I had learned 1,000 English words till then.
到那时为止我已经学会了1000个英语单词。
区分
过去完成时与一般过去时的区别
(1) 时间状语不同:过去完成时在时间上强调“过去的过去”，而一般过去时只强调过去某一特定的时间。比较：
They had arrived at the station by ten yesterday.
他们昨天十点之前就已经到达车站了。
They arrived at the station at ten yesterday.
他们昨天十点到达车站。
区分
过去完成时与一般过去时的区别
(2) 在没有明确的过去时间状语作标志时，谓语动词动作发生的时间先后须依据上下文来判断：先发生的用过去完成时，后发生的则用一般过去时。
She had just won the first prize in the composition competition. She was very happy. Her whole family were pleased with her, too.
她刚刚在作文竞赛中获得了一等奖。她很高兴，她的所有家人也对她感到满意。
区分
3
PART three
Practice
完成练习，及时巩固
Exercise:
We ____________ (paint) the house before we _______ (move) in.
Paul _______ (go) out with Jane after he __________ (make) a phone call.
3) Tom _______ (say) he __________ (read) the book twice.
had painted
moved
went
had made
said
had read
Exercise:
4) 他说自从 1989 年以来他就在那家工厂工作。
He said ____________________________ since 1989.
5) 我认为我一星期前就把信寄出去了。
I thought _____________________ a week before
昨晚九点之前我已看完这本小说了。
______________________________ by nine o'clock last night.
he had worked in that factory
I had sent the letter
I had finished reading the novel
Do Activity 2 on Page 70.
Complete the paragraphs with the information from the given sentences. The sentences are in the order in which they happened. They can help you to decide the use of tenses.
began
had led
to developed
chose to
had made
Do Activity 3 & 4 on Page 71.
①Complete the online encyclopaedia entry with the correct form of the words in the box.
arrived
had lived
eaten
had introduced
competed
declined
Do Activity 3 & 4 on Page 71.
② Work in pairs
Act out a role-play using the information in Activity 3. One of you will lay the keeper of Lonesome George, and the other will play the reporter asking about George. Use the past perfect tense where appropriate.
4
PART four
Production
完成练习
Do Activity 5 on Page 71.
Listen to the podcast and choose the statements that are made.
① Biodiversity is important.
② Bacteria are always harmful to humans.
③ Some species of bacteria are used in food production.
④ Many species of bacteria recycle dead organic matter.
⑤ Our immune systems are able to fight off all germs.
Suggested answers: ③④
Do Activity 6 on Page 71.
Listen again and complete the fact sheet.
Suggested answers:
made up of cells
Bricks that are used to build houses
thirty trillion
Thirty-nine trillion
help with digestion
Break down
Do Activity 7 on Page 72.
Complete the boxes with the expressions from the podcast.
Do you know about…
Have you heard of…
By the way,…
Actually,…
In fact,…
Speaking of which,…
Do Activity 8 on Page 72.
Read the passage and answer the questions.
① What species are mentioned and what is special about them
② What other unusual life forms do you know of
Suggested answers:
① Two species are mentioned: the blue whale and the water bear. The blue whale is the largest animal species on Earth，which can grow up to almost 30 metres in length and weigh over 130,000 kilos. The water bear is probably the toughest species，which can survive temperatures from 150C to a below freezing -272℃.
Do Activities 9 & 10 on Page 73.
① Complete the paragraphs with the correct form of the words and expressions in the box.
Suggested answers:
1. is home to
2. Are native to
3. scientific
4. Habitats
5. Ecosystem
6. Appearance
7. primitive
8. Ancestor
Do Activities 9 & 10 on Page 73.
② Work in pairs.
Look at the pictures of the species native to different regions of China. Talk about biodiversity in China using the words and expressions in this section. Do online research to find more information.
Exercise:
By nine o'clock last night, we _________ (get) 200 pictures from the spaceship.
I _________ (be) at the bus stop for 20 minutes when a bus finally came.
He said he ____________ (work) in that factory since 1949.
I didn't know these words, for I ______________ (not study) my lesson.
We _______ (learn) over two thousand English words by the end of last term.
had got
had been
had
had worked
had not studied
Fill in the blanks with the correct forms of the words in the brackets.
Thank you!
Using language
Unit 5 Revealing nature
Using language
1. declare
declare...( to be...)
declare war on...
declare that...
declare sth. illegal
declare independence from
declare oneself to be...
It is declared that...
练习：The workers declared _______ the offer of increased pay and holidays.
Vocabulary
for
宣布/宣称……(为……)
向……宣战
宣布/宣称……
宣布……非法
宣布摆脱……独立
宣称自己……
据宣布……
2. blame
blame sb./sth. for sth.
Blame sb. for (doing) sth.
take/accept the blame ( for sth.)
put/lay/place the blame on sb.
the blame lies with sb.
练习：Marie still blames herself _______ Patrick's death.
Vocabulary
for
把某事归咎于某人/某物
因(做)某事而责备某人
承担(某事的)责任
把责任归于某人
责任在于某人
3. decline
decline by...
decline to...
decline in...
decline to do sth.
练习：Car sales have declined _________ a quarter.
Vocabulary
by
减少了……
减少到……
在……方面降低
拒绝做某事
4. be harmful to
do harm to sb./sth.= do sb./sth. harm
cause sb./sth. harm
suffer harm
do more harm than good
there is no harm in doing sth.
mean no harm/not mean any harm
练习：Try to reduce the use of chemicals that are _________ (harm) to the environment.
Vocabulary
harmful
对某人/某物有害
对某人/某物造成伤害
受到损害
弊大于利
不妨做某事，做某事没有坏处
无意伤害没有恶意
5. be home to
make sb. feel at home
be feel at home
make yourself at home
find a home for sth.
hit/strike home
(both) at home and abroad
make ones home
练习：Warwick is home _________ some 550 international students.
Vocabulary
使某人感到宾至如归
舒适自在，不拘束
别拘束
找地方安置某物
(言语等)正中要害；使人接受(或认清)现实
在国内外
定居，居住
to
1
PART ONE
Leading-in
Do Activity 1 on Page 70.
Look at the sentences from the reading passage and answer the questions.
In sentence (a), which action happened first, "suspected" or "evolved from a common ancestor"
In sentence (b), which action happened first, "refused to believe" or "evolved from lower forms of life"
What does the structure had done indicate
Suggested answers:
In sentence (a), "evolved from a common ancestor" happened first.
In sentence (b), "evolved from lower forms of life" happened first.
It indicates the action happened before a certain past action.
2
PART two
Presentation
She had worked for twelve hours by 8:00 p.m.
She had learned English before she came to Britain.
By the end of last month, we had finished half of the project.
Look at the following sentences.
What can you find
构成：had+过去分词
标志性时间状语
Past perfect——过去完成时
构成：
过去完成时由“助动词 had (通用于各种人称和数)+过去分词”构成。
用法：
①表示在过去某一时间或某一动作之前已经完成的动作或存在的状态
②过去某一时刻之前发生的动作或状态持续到过去某个时间或还要持续下去
③与过去事实相反的虚拟条件从句
④固定句型
⑤未曾实现的希望、打算、意图、诺言、想法等
区分：
①与现在完成时的区别
②与一般过去时的区别
过去完成时表示在过去某一时间或某一动作之前已经完成的动作或存在的状态。
I had finished my homework before supper.
我在晚饭前就把作业做完了。
还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或还要持续下去，常用的时间状语有by then，by the end of 等。
By the end of last week, she had learned 10 English songs
到上周为止，她已经学习了10 首英文歌曲。
用法
用于表示与过去事实相反的虚拟条件从句中。
If he had seen you yesterday, he would have asked you about it.
假如他昨天看到你，他就会问你这件事了。
过去完成时也用于hardly...when...，no sooner…than...， It was the first time+that(从)等一些固定句型中。
He had no sooner left the room than they began to talk about him.
他刚离开房间，他们就议论起他来。
用法
表示未曾实现的希望、打算、意图、诺言、想法等，常用过去完成时。
I had hoped to see her again.
我本希望再见她一面。(没能如愿)
用法
过去完成时与现在完成时的区别
现在完成时表示的动作发生在过去，以现在的时间为基点，但侧重对现在产生的结果或造成的影响，与现在有关，其结构为“助动词 have (has)+过去分词”；过去完成时则是一个相对的时态，以过去时间为基点，它所表示的动作不仅发生在过去，更强调“过去的过去”，只有和过去某时或某动作相比较时，才用到它。
I have learned 1,000 English words so far.
到目前为止我已经学会了1000个英语单词。
I had learned 1,000 English words till then.
到那时为止我已经学会了1000个英语单词。
区分
过去完成时与一般过去时的区别
(1) 时间状语不同:过去完成时在时间上强调“过去的过去”，而一般过去时只强调过去某一特定的时间。比较：
They had arrived at the station by ten yesterday.
他们昨天十点之前就已经到达车站了。
They arrived at the station at ten yesterday.
他们昨天十点到达车站。
区分
过去完成时与一般过去时的区别
(2) 在没有明确的过去时间状语作标志时，谓语动词动作发生的时间先后须依据上下文来判断：先发生的用过去完成时，后发生的则用一般过去时。
She had just won the first prize in the composition competition. She was very happy. Her whole family were pleased with her, too.
她刚刚在作文竞赛中获得了一等奖。她很高兴，她的所有家人也对她感到满意。
区分
3
PART three
Practice
完成练习，及时巩固
Exercise:
We ____________ (paint) the house before we _______ (move) in.
Paul _______ (go) out with Jane after he __________ (make) a phone call.
3) Tom _______ (say) he __________ (read) the book twice.
had painted
moved
went
had made
said
had read
Exercise:
4) 他说自从 1989 年以来他就在那家工厂工作。
He said ____________________________ since 1989.
5) 我认为我一星期前就把信寄出去了。
I thought _____________________ a week before
昨晚九点之前我已看完这本小说了。
______________________________ by nine o'clock last night.
he had worked in that factory
I had sent the letter
I had finished reading the novel
Do Activity 2 on Page 70.
Complete the paragraphs with the information from the given sentences. The sentences are in the order in which they happened. They can help you to decide the use of tenses.
began
had led
to developed
chose to
had made
Do Activity 3 & 4 on Page 71.
①Complete the online encyclopaedia entry with the correct form of the words in the box.
arrived
had lived
eaten
had introduced
competed
declined
Do Activity 3 & 4 on Page 71.
② Work in pairs
Act out a role-play using the information in Activity 3. One of you will lay the keeper of Lonesome George, and the other will play the reporter asking about George. Use the past perfect tense where appropriate.
4
PART four
Production
完成练习
Do Activity 5 on Page 71.
Listen to the podcast and choose the statements that are made.
① Biodiversity is important.
② Bacteria are always harmful to humans.
③ Some species of bacteria are used in food production.
④ Many species of bacteria recycle dead organic matter.
⑤ Our immune systems are able to fight off all germs.
Suggested answers: ③④
Do Activity 6 on Page 71.
Listen again and complete the fact sheet.
Suggested answers:
made up of cells
Bricks that are used to build houses
thirty trillion
Thirty-nine trillion
help with digestion
Break down
Do Activity 7 on Page 72.
Complete the boxes with the expressions from the podcast.
Do you know about…
Have you heard of…
By the way,…
Actually,…
In fact,…
Speaking of which,…
Do Activity 8 on Page 72.
Read the passage and answer the questions.
① What species are mentioned and what is special about them
② What other unusual life forms do you know of
Suggested answers:
① Two species are mentioned: the blue whale and the water bear. The blue whale is the largest animal species on Earth，which can grow up to almost 30 metres in length and weigh over 130,000 kilos. The water bear is probably the toughest species，which can survive temperatures from 150C to a below freezing -272℃.
Do Activities 9 & 10 on Page 73.
① Complete the paragraphs with the correct form of the words and expressions in the box.
Suggested answers:
1. is home to
2. Are native to
3. scientific
4. Habitats
5. Ecosystem
6. Appearance
7. primitive
8. Ancestor
Do Activities 9 & 10 on Page 73.
② Work in pairs.
Look at the pictures of the species native to different regions of China. Talk about biodiversity in China using the words and expressions in this section. Do online research to find more information.
Exercise:
By nine o'clock last night, we _________ (get) 200 pictures from the spaceship.
I _________ (be) at the bus stop for 20 minutes when a bus finally came.
He said he ____________ (work) in that factory since 1949.
I didn't know these words, for I ______________ (not study) my lesson.
We _______ (learn) over two thousand English words by the end of last term.
had got
had been
had
had worked
had not studied
Fill in the blanks with the correct forms of the words in the brackets.
Thank you!
Using language