外研版（2019） 选择性必修第四册 Unit 5 Into the Unknown Understanding ideas 2 课件（30张）

(共30张PPT)
Unit 5 Into the unknown
Understanding ideas
目录页
contents
Pre-reading
I
Language points
Ⅳ
Fast reading
II
Homework
Ⅴ
Intensive reading
III
VI
Post-reading
Ⅰ
Pre-reading
Pre-reading
Look at the pictures and answer the questions. Do further research if necessary.
1. What do you know about these ancient civilisations
2. What might be the reasons behind their collapse
3. What other ancient civilisations do you know of Share what you know with the class.
Pre-reading
1. What do you know about these ancient civilisations
Ancient Greece has a long history which was made up of many Greek city-states.
The ancient Greeks believed in gods, goddesses, and magical creatures.
The Greeks built temples to honor their gods. They told wonderful myths about their gods.
Pre-reading
Ancient Babylon was a massive walled city, and everyone lived inside the walled city.
Laws of Babylon were famous. To ensure that the laws were followed by everyone, one of the kings of Babylon had the laws written down on stone so that everyone would be treated equally under the law.
1. What do you know about these ancient civilisations
Pre-reading
Ancient Egypt had advanced science and technology for the time. Ancient Egyptians built a lot of grand Pyramids, which were the tombs of their kings.
Ancient Egyptians left many works of art, which reflected the collective effort. The colors of the paintings in the rock tombs looked fresh and vivid.
1. What do you know about these ancient civilisations
Pre-reading
2. What might be the reasons behind their collapse
It might be the wars that led to their collapse. They were conquered by other empires.
Pre-reading
3. What other ancient civilisations do you know of Share what you know with the class.
The Mayan Indians lived in Mexico for thousands of years.
Ancient Maya
The Maya believed in many gods. They built large temples to honor them.
Ⅱ
Fast reading
Fast reading
Read the passage and find out the possible reasons for the disappearance of Maya civilisation.
The way that the Maya people changed the landscape around them may have been one of the reasons behind the disappearance of their civilisation. Turning wetlands into fields for growing grains, digging huge canal systems and cutting down more trees for
Fast reading
Read the passage and find out the possible reasons for the disappearance of Maya civilisation.
construction reduced their ability to cope with natural disasters. When those natural disasters, such as droughts, struck, the Maya would have faced food shortages, conflicts and, eventually, the downfall of their cities.
Fast reading
Choose the topic sentences and write them on the lines to complete the passage.
a. Maya civilisation has been surrounded by mystery since its rediscovery in the 19th century.
b. But the greatest mystery of all is what caused the Maya to abandon most of their great cities.
c. Although his theory has been dismissed by scholars, it shows how powerful the secrets of Ancient Maya civilisation are among people.
Fast reading
d. Research also suggests that those natural disasters may have led to the decline of the Maya.
e. Meanwhile, the rise and fall of this civilisation must also leave us thinking about our own past, present and future.
f. Some research seems to indicate that the Maya people themselves may have played a part in their downfall.
Choose the topic sentences and write them on the lines to complete the passage.
III
Intensive reading
Intensive reading
Try to figure out the structure of the passage.
The mysteries of Maya
Part 1:___________________________________________
Part 2:___________________________________________
Part 3:___________________________________________
Part 4:___________________________________________
____________________
Part 5:___________________________________________
_____________________
(para.1) Introduce the topic
(para.2) The achievements of Maya civilization
(para.3) The decline of Maya civilization
(para.4-5) The reasons for the collapse of Maya civilization
(para.6) The mysteries of Maya civilization remain to be solved
Intensive reading
Time: around 1800 BC to 1100 AD
Location: from 1 ________ to 2_____________
Possible reasons for collapse
1. human causes - reduced the ability to deal with
3_______________
4 _______________________
5 _______________________
huge expansion of the 6 ___________
2. natural causes - a series of 7__________between 700 AD and 1000 AD, each ________________________
Organise information from the passage and complete the file of Maya civilisation.
Intensive reading
MAYA CIVILISATION
Time: around 1800 BC to 1100 AD
Location: from 1 ________ to 2______________
Possible reasons for collapse
1. human causes — reduced the ability to deal with
3_______________
Mexico
Central America
natural disasters
Intensive reading
4 _______________________
5 _______________________
huge expansion of the 6 ___________
2. natural causes — a series of 7__________ between 700 AD and 1000 AD, each ____________________
____________
turning wetlands into fields
digging huge canal systems
population
droughts
lasting for a couple of
years
Intensive reading
Comparing the highly-sophisticated civilisations of the Maya and Ancient China reveals some surprising similarities. They both possessed a detailed understanding of 1 ____________ and astronomy, which helped them maintain an accurate 2 ___________, and a complex 3______________ that used signs to represent sounds and meanings.
mathematics
calendar
writing system
Complete the cultural comparison with information from the passage.
Intensive reading
It can therefore be difficult to explain why, despite their excellent construction skills, the Maya never learnt to use 4___________________________________,
while the ancient Chinese did. Facts such as these add to the mystery surrounding Maya civilisation, driving people to find out why it 5 ____________while others, such as Ancient China, survived and thrived.
wheels, metal tools or even animal power
disappeared
Complete the cultural comparison with information from the passage.
Ⅳ
Post-reading
1. What is the author’s purpose in starting the passage with the story about William Gadoury
2. What other things do you think could destroy a civilisation Share an example with the class.
3. What lessons can you learn from the collapse of Maya civilisation How can this information help the development of today’s society
4. Which of the arguments in the passage did you find the most convincing Give your reasons.
Post-reading
1. What is the author’s purpose in starting the passage with the story about William Gadoury
Post-reading
The story about William Gadoury shows how the secrets of Ancient Maya civilisation have captured people’s imaginations.
2. What other things do you think could destroy a civilisation Share an example with the class
Post-reading
Maybe the wars.
Ancient Greece was conquered by the Roman Empire.
3. What lessons can you learn from the collapse
of Maya civilisation How can this information
help the development of today’s society
Post-reading
We can’t destroy the balance of the ecosystem.
Humans should live in harmony with nature. Only if we care for nature can we better protect our living environment.
4. Which of the arguments in the passage did you find the most convincing Give your reasons.
Post-reading
VI
Homework
Homework
Write a short passage to describe the reasons for the collapse of Maya civilisation with your own words.
VI
thank you