(共16张PPT)
SB1U5 Revealing nature
Starting out (page 65)
1 What do you know about these animals
What makes them special
2 What other similar animals do you know
about Share your knowledge with the
class.
Look and answer
Look at the page from a science magazine
and answer the questions.(P65-1)
Komodo dragon:(科莫多巨晰)
Komodo dragons were first encountered by Western researchers in 1910. The ancestor of the Komodo dragon most likely evolved in Australia, then, reaching the Indonesian 900000 years ago.
an animal that lived in the past which a modern animal has developed from
v.遭遇(近:meet with, run into)
偶遇,邂逅(近:come across)
v.进化
The Komodo dragon
The Komodo dragon is the largest lizard in the world. It can grow to three metres in length and weigh about 135 kilograms. Despite its size and weight, it can run at up to 20 kilometres per hour.
Duck-billed platypus(鸭嘴兽)
The first scientists to examine a preserved(保藏的) platypus body judged it a fake in the late 18th century. The oldest discovered fossil of the modern platypus dates back to about 100,000 years ago.
v.保护,维护,贮存
n. 动物保护区
=date from追溯到
The duck-billed platypus is a small egg-laying mammal (up to 60 cm in length) found only in Eastern Australia including Tasmania. As its name suggests, it has a mouth that looks like a duck`s bill, while its thick fur and flat tail are similar to those of a beaver(海狸).
Duck-billed platypus:
The oldest discovered fossil of the modern platypus dates back to 100000 years ago.
Nautilus(鹦鹉螺)
Fossil(化石) records indicate that the nautilus has survived relatively(相当地,相对地) unchanged for around 500 million years. That is why it is often given the name “living fossil.”
1 What do you know about these animals
What makes them special
Look and answer
Look at the page from a science magazine
and answer the questions.(P65-1)
They are all species that exit thousands of years on earth; They are old and rare (unusual).
2 What other similar animals do you know
about Share your knowledge with the
class.
Jellyfish(水母) are soft-bodied,free-swimming aquatic(水生的) animals with an umbrella-shaped bell.They are found in every ocean.
1 How can seeds travel How can this benefit plants
2 Can you think of another example of seeds travelling
Share it with the class.
Watch and answer
v.传播,移动
1 How can seeds travel How can this benefit plants
2 Can you think of another example of seeds travelling
Share it with the class.
Watch and answer
v.传播,移动
Seeds usually are carried by the wind, water, animals and people.
Plants can have a better chance at life when they are further away from their parent plant.
Dandelion seeds have little parachutes to catch the wind and go
further;
Humans can spread seeds if seeds get stuck to their clothing or shoes.
Words from the video:
Guess the meanings from the context.
Coconuts are carried along by ocean currents.
2) Another way for seeds to travel is through the digestive systems of animals.
3) Many plants produce fleshy fruits that animals like to eat.
4) That’s why nature has come up with all sorts of different ways for seeds to travel.
5) Perhaps we can learn something from the natural world by branching out and exploring the various wonders of nature.
Words from the video:
Guess the meanings from the context.
Coconuts are carried along by ocean currents.
the movement of water in the sea or a river; the movement of air in a particular direction
(海洋或江河的)水流,潮流;气流
2) Another way for seeds to travel is through the digestive systems of animals.
connected with the digestion of food 消化的
3) Many plants produce fleshy fruits that animals like to eat.
(of plants or fruit 植物或水果) thick and soft 肉质的; having a lot of flesh 多肉的
Words from the video:
Guess the meanings from the context.
4) That’s why nature has come up with all sorts of different ways for seeds to travel.
to find or produce an answer, a sum of money, etc.
找到(答案);拿出(一笔钱等)
5) Perhaps we can learn something from the natural world by branching out and exploring the various wonders of nature.
to start to do an activity that you have not done before, especially in your work or business
涉足(新工作);拓展(新业务)
Preview the passage A Journey of Discovery on pages 66-68.