(共12张PPT)
Period 1 Starting out
By the end of this class, you will be able to
1. learn some useful expressions and knowledge about nature;
2. have a deep understanding of the title.
Learning objectives
to show something that was previously hidden
to make known something that was previously secret or unknown
revelation (n.)
What do you know about them
maple
coconut
tomato
What’s special about them
How do their seeds travel
Why do their seeds travel
What do you know about them
Read for background information
page 45
What makes them unusual
Example Carried by Feature How
Maple seeds Wings that _______ and keep them in the ______ for ______, allowing them to ________ in all kinds of places Depending on the _______ of the wind, they can sometimes travel for _________ ____ kilometers
Coconuts Its ________ shell allows it to _______ on the water for a long time. When a coconut _______from a tree onto the beach, the sea _______ it ______ and carries it away to _______somewhere else
Cherry Many plants ________ fleshy fruits that animals like to ________ Animals _______especially ________, so the seeds can easily end up a _______way from the parent plant.
Example Carried by Feature How
Maple seeds Wings that _______ and keep them in the ______ for ______, allowing them to ________ in all kinds of places Depending on the __________ of the wind, they can sometimes travel for ___________ ____ kilometers
Coconuts Its ________ shell allows it to _______ on the water for a long time. When a coconut _______from a tree onto the beach, the sea _______ it ______ and carries it away to _______somewhere else
Cherry Many plants ________ fleshy fruits that animals like to ________ Animals _______especially ________, so the seeds can easily end up a _______way from the parent plant.
wind
ocean
currents
animals
spin
air
longer
land
strength
hundreds
of
hard
float
falls
picks
up
grow
produce
eat
move
birds
long
What do you know about these unusual animals
Komodo dragon
Komodo dragons:
Komodo dragons were first encountered by Western researchers in 1910. The researcher said the ancestor of the Komodo dragon most likely evolved in Australia and spread westward, reaching the Indonesia island of Flores 900,000 years ago.
科莫多巨蜥最早是在1910年被西方研究人员发现的。研究人员说，科莫多巨蜥的祖先很可能是在澳大利亚进化而来，并向西传播，在90万年前到达印度尼西亚的弗洛雷斯岛。
Duck-billed platypus
The first scientists to examine a preserved 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.
18世纪晚期，第一批查看保存下来的鸭嘴兽尸体的科学家判定它是赝品。
已发现的最古老的现代鸭嘴兽的化石可以追溯到大约10万年前。
Duck-billed platypus
Nautilus
Fossil records indicate that the nautilus has survived relatively unchanged for around 500 million years. It is often considered a “living fossil”.
化石记录表明，鹦鹉螺在大约5亿年的时间里相对稳定地存活了下来。经常被认为是“活化石”。
Nautilus植物妈妈有办法
Mother Plants Have Ways
孩子如果已经长大，
If children have grown up,
就得告别妈妈，四海为家。
each of them has to bid farewell to mother and become man of the world.
牛马有脚，
Horses and cows have feet.
鸟有翅膀，
Birds have wings.
植物要旅行靠的啥办法？
What methods do plants have if they want to travel
蒲公英妈妈准备了降落伞，
Dandelion mothers have prepared parachutes
把它送给自己的娃娃。
and they give one to each of their own babies.
只要有风轻轻吹过，
So long as a breeze softly blows by,
孩子们就乘着风纷纷出发。
children would ride the wind and start off their journeys one by one.
苍耳妈妈有个好办法，
Siberian cocklebur mothers have found a good way.
她给孩子穿上带刺的铠甲。
They dress their children in armors with spikes.
只要挂住动物的皮毛，
As long as the children hang on to furs of animals,
孩子们就能去田野、山洼。
they could go to open country and valleys.
豌豆妈妈更有办法，
Garden pea mothers are more resourceful.
她让豆荚晒在太阳底下，
They let pea-pods expose themselves under the sun.
啪的一声，豆荚炸开，
At popping sounds pods explode,
孩子们就蹦着跳着离开妈妈。
and children bounce off from their mothers.
植物妈妈的办法很多很多，
Methods adopted by plant mothers are plentiful.
不信你就仔细观察。
If you don’t believe me, observe carefully.
那里有许许多多的知识，
There are loads of knowledge in there.
粗心的小朋友却得不到它。
Slipshod little kids would not be able to acquire them.
