外研版（2019） 选择性必修第一册 Unit 5 Revealing Nature Understanding Ideas课件(18张ppt)

(共26张PPT)
Starting out & Understanding ideas
Pre-reading
1 What species do you recognise in the picture
Paramecium(草履虫), earthworm(蚯蚓), snail, crab, fish, tortoise, bird, horse, human, frog, alga(藻类), moss(苔藓), fern(蕨类植物), plant...
2 What factors can cause the process of evolution
The ever-changing environment of nature; environmental changes;
population immigration;
genetic mutation(突变);
cultural preferences...
Who
made this discovery
What
is the discovery
While-reading
Choose the main idea of the passage and give your reasons.
1. Darwin’s interest in various living things made him a great naturalist.
2. Darwin’s journey on the Beagle inspired his Theory of Evolution.
3. Darwin went on a journey to confirm his theory that humans had evolved over time.
The title of the passage is “A Journey of Discovery”. So the passage is mainly about how Darwin’s Theory of Evolution generated and developed on his journey on the Beagle.
Who
made this discovery
What
is the discovery
While-reading
How
did he make the discovery
Introduction
On his journey
Generate ideas
Look for more evidence
Develop ideas
Propose a theory
Conclusion
How he made
the discovery.
Number the puzzle pieces in order. Organise information from the passage and complete them.
1
4
2
3
5
1 On his journey
various living things in their natural environments and samples of the plants and animals he had collected
very similar to each other
2 Generate ideas
come to exist
Maybe animals evolved as they adapted to their changing environments？
Number the puzzle pieces in order. Organise information from the passage and complete them.
1
4
2
3
5
3 Look for more evidence
that there was a difference between the finches on each of the islands.
had evolved according to what food was available on that particular island.
4 Develop ideas
had evolved from a common ancestor, which had arrived on the islands a long time before
slowly evolved into many new species.
5 Propose a theory
had evolved from lower forms of life.
What words would you put before the words
A/An __________Journey of __________ Discovery by __________Darwin
dangerous
adventurous
time-consuming
important
revolutionary
refreshing
far-reaching
courageous
determined
persistent
devoted
curious
Post-reading
What have you learnt about the spirit of scientific exploration How can this spirit help you in your life and studies
Russian President Vladimir Putin on Monday signed two decrees recognizing the "Luhansk People's Republic (LPR)" and the "Donetsk People's Republic (DPR)" as independent and sovereign states. The U.S. has announced financial sanctions against the rebel territories in eastern Ukraine freshly recognized by Russia. The EU said the bloc will also react with sanctions.
Russian President Vladimir Putin on Monday signed two decrees recognizing the "Luhansk People's Republic (LPR)" and the "Donetsk People's Republic (DPR)" as independent and sovereign states. The U.S. has announced financial sanctions against the rebel territories in eastern Ukraine freshly recognized by Russia. The EU said the bloc will also react with sanctions.
an official order from a ruler or a government that becomes the law 法令；政令
to issue/sign a decree
颁布 / 签署法令
Russian President Vladimir Putin on Monday signed two decrees recognizing the "Luhansk People's Republic (LPR)" and the "Donetsk People's Republic (DPR)" as independent and sovereign states. The U.S. has announced financial sanctions against the rebel territories in eastern Ukraine freshly recognized by Russia. The EU said the bloc will also react with sanctions.
sovereign | s vr n | (of a country or state 国家) free to govern itself; completely independent 有主权的；完全独立的
Russian President Vladimir Putin on Monday signed two decrees recognizing the "Luhansk People's Republic (LPR)" and the "Donetsk People's Republic (DPR)" as independent and sovereign states. The U.S. has announced financial sanctions against the rebel territories in eastern Ukraine freshly recognized by Russia. The EU said the bloc will also react with sanctions.
a person who fights against the government of their country
反政府的人；叛乱者；造反者
Russian President Vladimir Putin on Monday signed two decrees recognizing the "Luhansk People's Republic (LPR)" and the "Donetsk People's Republic (DPR)" as independent and sovereign states. The U.S. has announced financial sanctions against the rebel territories in eastern Ukraine freshly recognized by Russia. The EU said the bloc will also react with sanctions.
= recently 最近地
Russian President Vladimir Putin on Monday signed two decrees recognizing the "Luhansk People's Republic (LPR)" and the "Donetsk People's Republic (DPR)" as independent and sovereign states. The U.S. has announced financial sanctions against the rebel territories in eastern Ukraine freshly recognized by Russia. The EU said the bloc will also react with sanctions.
a group of countries that work closely together because they have similar political interests （政治利益一致的）国家集团
Russian President Vladimir Putin on Monday signed two decrees recognizing the "Luhansk People's Republic (LPR)" and the "Donetsk People's Republic (DPR)" as independent and sovereign states. The U.S. has announced financial sanctions against the rebel territories in eastern Ukraine freshly recognized by Russia. The EU said the bloc will also react with sanctions.
周一，俄罗斯总统普京签署两份法令，承认顿涅茨克人民共和国和卢甘斯克人民共和国为独立主权国家。
对于刚刚获得俄罗斯承认的乌东反政府地区，美国宣布对其实施经济制裁。欧盟称他们也将进行经济制裁。
China calls for further dialogue on the Ukraine crisis, said China's Permanent Representative to the United Nations Zhang Jun on Tuesday at an emergency meeting of the UN Security Council.
He also called for all parties to keep calm and avoid actions that could escalate tensions.
Smart Expressions
……的耻辱
有史以来最重要的科学发现之一
所说的这个年轻人
给……机会……
研究各种各样的生物
产生（exist短语）
进化成很多新物种
引起强烈反响
从更低的生命形式进化而来
a disgrace to…
one of the most important scientific discoveries of all time
the young man in question
in question
that is being discussed 讨论中的
in doubt; uncertain 有疑问；不确定
e.g. On the day in question we were in Cardiff.
在所说的那一天，我们在加的夫。
e.g. The future of public transport is not in question.
公共交通的未来发展是不容置疑的。
e.g. A trip abroad is out of the question this year because of the pandemic.
因为疫情，今年再度出国是绝无可能的。
impossible or not allowed and therefore not worth discussing 不可能；不允许；不值得讨论
Smart Expressions
……的耻辱
有史以来最重要的科学发现之一
所说的这个年轻人
给……机会……
研究各种各样的生物
产生（exist短语）
进化成很多新物种
引起强烈反响
从更低的生命形式进化而来
a disgrace to…
one of the most important scientific discoveries of all time
the young man in question
give… the chance to do…
study various living things
come to exist / come into existence
evolve into many different species
cause a storm
evolve from lower forms of life
storm:
1) a situation in which a lot of people suddenly express very strong feelings about sth （群情迸发的）浪潮
a storm of protest
抗议的浪潮
2) of sth a sudden loud noise that is caused by emotion or excitement 暴风雨般的声音，轰鸣
如雷掌声
a storm of applause= roar
Blank Filling
Fill the blanks with suitable prepositions.
After Darwin had spent some time _____ South America, his room _____ the ship was crowded _____ samples of the plants and animals he had collected.
He noticed that some species of animals were very similar ____ each other.
adapt _____ the changing environments
It seemed their beaks had evolved according to what food was available _____ that particular island.
the answer _____ how new species of plants and animals came to exist.
in
on
with
to
to
on
to