外研版（2019）高中英语选择性必修第一册 Unit5Revealing nature Using language 名师课件（24张）
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| 名称 | 外研版（2019）高中英语选择性必修第一册 Unit5Revealing nature Using language 名师课件（24张） |  | |
| 格式 | pptx | ||
| 文件大小 | 3.5MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-03-02 20:39:13 | ||
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(共24张PPT)
Unit5 Revealing nature
Using language
Ⅰ
Ⅱ
Ⅲ
CONTENTS
Integrated skills
Grammar
Homework
Grammar
Part 1
Look at the sentences from the reading passage and
answer the questions.
a. Darwin suspected that the finches had evolved from a common ancestor,...
b. Many people refused to believe that living things, including humans, had evolved from lower forms of life.
1. In sentence (a), which action happened first, “suspected” or “evolved from a common ancestor”
“evolved from a common ancestor” happened first.
Look at the sentences from the reading passage and
answer the questions.
a. Darwin suspected that the finches had evolved from a common ancestor,...
b. Many people refused to believe that living things, including humans, had evolved from lower forms of life.
2. In sentence (b), which action happened first, “refused to believe” or “evolved from lower forms of life”
“evolved from lower forms of life” happened first.
Look at the sentences from the reading passage and
answer the questions.
a. Darwin suspected that the finches had evolved from a common ancestor,...
b. Many people refused to believe that living things, including humans, had evolved from lower forms of life.
3. What does the structure had done indicate
It indicates the action happened before a certain past action.
Now look for more sentences with the past perfect tense in the reading passage, and summarize its use in your own words.
The person who answered the call was not the captain’s first choice. It was a young man who had left medical school without completing his degree.
...he had recently received a letter from his father predicting that he would be “a disgrace to yourself and all your family.
2. After Darwin had spent some time in South America, his room on the ship was crowed with samples of the plants and animals he had collected.
after
before
before
after
3. At that time, people believed that all species had appeared on Earth at the same time, and had not changed since.
4. It seemed their beaks had evolved according to what food was available on that particular island.
5. Over time, it had slowly evolved into many new species.
after
before
before
after
after
Past Perfect Forms
The past perfect is formed using had + past participle. Questions are indicated by inverting the subject and had. Negatives are made with had not.
Statement: You had studied English before you moved to New York.
Question: Had you studied English before you moved to New York
Negative: You had not studied English before you moved to New York.
Examples
1. I ____________(not see) such a beautiful beach before I went to Kauai.
2. I did not have any money because I ________(lose) my wallet.
3. Tony knew Istanbul so well because he ___________(visit) the city several times.
4. ______ Susan _______(study) Thai before she moved to Thailand
5. She only understood the movie because she _________(read) the book.
6. Kristine _____________(never be) to an opera before last night.
7. We were not able to get a hotel room because we ______________(not book) in advance.
8. A: _______ you ever _______(visit) the U.S. before your trip in 2006
B: Yes, I ____________ to the U.S. once before.
Hadn’t seen
had lost
had visited
studied
Had
had read
had never been
Hadn’t booked
Had
visited
had been
Complete the paragraphs with the information from the given sentences. The sentences a-c happened in order. They can help you to decide the use of tenses.
began
had led to
developed
chose to
had made
Complete the paragraphs with the information from the given sentences.
compete decline eat
live introduce arrive
1. arrived 2. had lived
3. eaten 4. had introduced
5. competed 6. declined
Integrated skills
Part 2
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.
Listen again and complete the fact sheet.
Discuss what you know about cells and bacteria in pairs.
thirty trillion
thirty-nine trillion
made up of cells
bricks that are used to build houses
help with digestion
break down
Do you know about......
Have you heard of ......
Complete the boxes with the expressions from the podcast.
By the way......
Actually......
In fact,......
Speaking of which,…
Checking background knowledge
Adding information
Answer the questions
1. What species are mentioned and what is special about them
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 150 C to a below freezing -272 C.
2. What other unusual life forms do you know of
is home to
are native to
scientific
habitats
ecosystem
appearance
primitive
ancestor
Complete the paragraphs with the correct form of the words and expressions in the box.
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.
Homework
Part 3
Homework
Predict the passage of “The Secret Language of Plants”
Writing more sentences using Past Perfect Forms, then check it with your deskmate.
Unit5 Revealing nature
Using language
Ⅰ
Ⅱ
Ⅲ
CONTENTS
Integrated skills
Grammar
Homework
Grammar
Part 1
Look at the sentences from the reading passage and
answer the questions.
a. Darwin suspected that the finches had evolved from a common ancestor,...
b. Many people refused to believe that living things, including humans, had evolved from lower forms of life.
1. In sentence (a), which action happened first, “suspected” or “evolved from a common ancestor”
“evolved from a common ancestor” happened first.
Look at the sentences from the reading passage and
answer the questions.
a. Darwin suspected that the finches had evolved from a common ancestor,...
b. Many people refused to believe that living things, including humans, had evolved from lower forms of life.
2. In sentence (b), which action happened first, “refused to believe” or “evolved from lower forms of life”
“evolved from lower forms of life” happened first.
Look at the sentences from the reading passage and
answer the questions.
a. Darwin suspected that the finches had evolved from a common ancestor,...
b. Many people refused to believe that living things, including humans, had evolved from lower forms of life.
3. What does the structure had done indicate
It indicates the action happened before a certain past action.
Now look for more sentences with the past perfect tense in the reading passage, and summarize its use in your own words.
The person who answered the call was not the captain’s first choice. It was a young man who had left medical school without completing his degree.
...he had recently received a letter from his father predicting that he would be “a disgrace to yourself and all your family.
2. After Darwin had spent some time in South America, his room on the ship was crowed with samples of the plants and animals he had collected.
after
before
before
after
3. At that time, people believed that all species had appeared on Earth at the same time, and had not changed since.
4. It seemed their beaks had evolved according to what food was available on that particular island.
5. Over time, it had slowly evolved into many new species.
after
before
before
after
after
Past Perfect Forms
The past perfect is formed using had + past participle. Questions are indicated by inverting the subject and had. Negatives are made with had not.
Statement: You had studied English before you moved to New York.
Question: Had you studied English before you moved to New York
Negative: You had not studied English before you moved to New York.
Examples
1. I ____________(not see) such a beautiful beach before I went to Kauai.
2. I did not have any money because I ________(lose) my wallet.
3. Tony knew Istanbul so well because he ___________(visit) the city several times.
4. ______ Susan _______(study) Thai before she moved to Thailand
5. She only understood the movie because she _________(read) the book.
6. Kristine _____________(never be) to an opera before last night.
7. We were not able to get a hotel room because we ______________(not book) in advance.
8. A: _______ you ever _______(visit) the U.S. before your trip in 2006
B: Yes, I ____________ to the U.S. once before.
Hadn’t seen
had lost
had visited
studied
Had
had read
had never been
Hadn’t booked
Had
visited
had been
Complete the paragraphs with the information from the given sentences. The sentences a-c happened in order. They can help you to decide the use of tenses.
began
had led to
developed
chose to
had made
Complete the paragraphs with the information from the given sentences.
compete decline eat
live introduce arrive
1. arrived 2. had lived
3. eaten 4. had introduced
5. competed 6. declined
Integrated skills
Part 2
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.
Listen again and complete the fact sheet.
Discuss what you know about cells and bacteria in pairs.
thirty trillion
thirty-nine trillion
made up of cells
bricks that are used to build houses
help with digestion
break down
Do you know about......
Have you heard of ......
Complete the boxes with the expressions from the podcast.
By the way......
Actually......
In fact,......
Speaking of which,…
Checking background knowledge
Adding information
Answer the questions
1. What species are mentioned and what is special about them
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 150 C to a below freezing -272 C.
2. What other unusual life forms do you know of
is home to
are native to
scientific
habitats
ecosystem
appearance
primitive
ancestor
Complete the paragraphs with the correct form of the words and expressions in the box.
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.
Homework
Part 3
Homework
Predict the passage of “The Secret Language of Plants”
Writing more sentences using Past Perfect Forms, then check it with your deskmate.