外研版(2019)选择性必修第一册Unit5 Revealing nature Understanding ideas课件(共21张PPT)

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名称 外研版(2019)选择性必修第一册Unit5 Revealing nature Understanding ideas课件(共21张PPT)
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资源类型 教案
版本资源 外研版(2019)
科目 英语
更新时间 2024-04-08 16:58:01

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(共21张PPT)
Unit 5 Revealing nature
(Understanding ideas)
A Journey of Discovery
Learning objectives
Identify the type of writing and the main idea of the passage by the reading skill of skimming;
explain the character’s discovery process and the textual structure of the whole passage;
talk about the qualities that the character showed and reflect on the spirit of scientific exploration.
By the end of this lesson, we will be able to :
Understanding ideas:Pre-reading
evolution tree
higher forms of life
evolve v.
(develop gradually)
Lower forms of life
animals
plants
zebra斑马(哺乳动物)
bird
turtle海龟(爬行动物)
fish
crab 螃蟹(爬行动物)
snail 蜗牛(软体动物)
earthworm蚯蚓 (环节动物)
flatworm(扁形动物)
poaramecium草覆中(单细胞生物)
frog青蛙(两栖动物)
starfish(棘皮动物)
jellyfish 水母腔肠动物
algae(藻类)
algae(藻类)
moss(苔鲜)
gymnosperms裸子植物
angiosperm
被子植物
human
Use the title and picture to make predictions.
A Journey of Discovery
Strategy 1
When making predictions about a passage, readers can ask questions based on the title and the picture given.
Use the title and picture to make predictions.
1.Who made the journey
2.Why did the character make the journey
A Journey of Discovery
3. When and where did the character travel
4. What discovery was made
5. How did the character make the discovery
1. What is the genre (type of writing) of the passage
Narrative B. Exposition C. Argumentation
2.Which is the main idea of the passage and give your reasons.
A. Darwin’s interest in various living things made him a great naturalist.
B. Darwin’s journey on the Beagle inspired his theory of evolution.
C. Darwin went on a journey to confirm his theory that humans had evolved over time.
Skim through the passage and answer the questions.
1. What is the genre (type of writing) of the passage
Narrative B. Exposition C. Argumentation
Genre:
Elements: time, place, character and event
Before the journey
During the journey
After the journey
(Paragraph 1)
(Paragraph 2-5)
(Paragraph 6-7)
2.Which is the main idea of the passage and give your reasons.
A. Darwin’s interest in various living things made him a great naturalist.
B. Darwin’s journey on the Beagle inspired his theory of evolution.
C. Darwin went on a journey to confirm his theory that humans had evolved over time.
Skim through the passage and answer the questions.
Identify the main idea
Reason 1: topic sentences
Topic sentence (in Paragraph 1):
…his adventure on this ship would lead to one of the most important scientific discoveries of all time.
Summarizing sentence (in Paragraph 7):
It (On the Origin of Species) has changed ideas about life on Earth forever . And it all began with the journey on the Beagle.
Identify the main idea
Reason 2: title
A Journey of Discovery
B. Darwin’s journey on the Beagle inspired his theory of evolution.
Strategy 2
To summarize the main idea of a passage, we can refer to topic sentences, repetitively occurring key words and the title.
Check the predictions by scanning.
1.Who made the journey (Darwin)
2.Why did the character make the journey
3. When and where did the character travel
4. What discovery was made
5. How did the character make the discovery
2.Why did Darwin want to make the journey (Paragraph 1)
To explore the unknown
NOT the first choice
disgrace
Shame,dishonor
3.When and where did Darwin travel
Hint
Scan the time and places mentioned in the passage.
He left England on the ship, the Beagle,in 1831. (Para 2)
The Beagle reached the Galapagos islands in1835.(Para4)
What discovery was made
How did Darwin make the discovery
Clarify Darwin’s discovery process(p69)
Put the pieces in order;
Fill in the blanks.
Strategy 3
Step 1:Read through the information on the pieces and circle the key words;
Step2: Match the key words on the pieces with relevant information in the passage;
Step 3: Number the pieces in order of time.
1
2
3
4
5
He studied various living things in their natural environments and samples of plants and animals he had collected(Para2)
very similar to each other(Para3)
come to exist (Para2)
Maybe animals evolved as they adapted to their changing environments (Para3)
that there was a difference between the finches on each of the island. (Para4)
had evolved according to what food was available on that particular island. (Para5)
that the finches had evolved from a common ancestor, and it had slowly evolved into many new species.(Para5)
had evolved from lower forms of life(Para6)
Think and share
Did people accept this theory at first
People’s reaction at first

Shocked
Reason
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since. (Para 3)
People’ s long held opinion
Darwin did not publish his Theory of Evolution until 1859.
Think and share
What kind of person was Darwin according to the passage
Darwin was a determined man with strong curiosity and interest in science . Passionate about studying nature, he was good at observing,reflecting and making discoveries . His remarkable scientific achievements resulted from his love for nature, bravery and perseverance.
Reflect on the title
A Journey of Discovery
Darwin’s discovery journey on the Beagle
Darwin’s journey of scientific discovery during his life time.
Pun
Draw a mind map for a whole passage