Warming up1. How many planets are there in the solar system?

Mercury （水星） , Venus （金星） , Earth, Mars （火星） , Jupiter （木星 , Saturn （土星） , Uranus （天王星） , Neptune （海王星） , Pluto （冥王星）

My Very Earnest Mother Just Served UN a Pizza

2. Who is the first man landing on the moon?

Armstrong (America, 1969)

Total lunar eclipse( 月全食）

Total solar eclipse （日全食 )

Meteor rain （流星雨）

Brain Activity:: Do you know each religion( 宗教）

or culture has its own ideas about the beginning of the universe? Please give an example if you know.

Legend V.S Mythology( 神话学） V.S Science

The beginning of the universe

Legend: Pangu creates the world

Pangu separates the sky from the earth

His whole body then turns into all kinds of things in the universe.

Mythology: in Christian Religion

In Bible, the world and the whole universe was created by the God.

Then the god create the first man and the first woman Adam and Eve( 亚当和夏娃）

The time table of the God

day 1---- light and blackness day 2--- the sky day 3--- seas, trees day 4---stars, sun,moon day 5---animals day 6---the first man(Adam) day 7—Sabbath( 安息日）

Science: The Big Bang（大爆炸）Scientists believe that around 15 billion years ago, a huge explosion happened , creating our universe.

There are several famous scientists such as Newton, Einstein and Stephen Hawking. They all have their own opinions on the universe.

Let’ s come to our text bookto see how life began on the earth

Unit 4

Astronomy: the science of the stars

Fast Reading 1 What were produced after the

explosion( 大爆炸） ? Water vapour, carbon dioxide, oxygen,nitrogen

and other gases

2. What helped life to develop?

Scientist believed that taking carbon dioxide from the atmosphere and filling the air with oxygen helped life to develop.

Comprehending:

1. B C B B

2. D B I G E H A C F J

Harmful gasesPlants in the seas

Land plants

Insects

Amphibians

Reptiles

Dinosaurs

Mammals including______________________

water

Land animals

Human beings

How life began on the Earth.

3. ⑴ Dinosaurs died out long before human beings developed on the earth.

⑵ They are the cleverest animals because they have larger brains than any other creatures on the earth so far.

After the “Big Bang”, the earth was just a cloud of _______ dust. It _____ loudly with fire and rock, which were _________to produce the water vapour, ___________ and other gases. Then small plants grew . They ___________and filled the oceans and seas with oxygen. Many millions of years later the first green plants began to ________on land. When the plants grew into forests,________ appeared for the first time. They produced young generally by _________eggs.

energetic explodedin time

multiplied

appearreptiles

laying

carbon dioxide

When dinosaurs disappeared, __________ became more important. Now small clever animals with _____________appeared and ________all over the world. As time ________ they covered the earth and they are putting too much carbon dioxide into the __________, which ________heat ____ ________ from the earth into space. Whether life will continue on earth for millions of years to come will _____________whether this problem can be solved.

mammals

spreadhands and feet

atmosphereprevents from

depend on

went by

escaping

Discussion Time

Do you think that humans are the cleverest animals on the earth?

If yes, why?If no, why not ?

Humans are the cleverest students, but not the most important ones on the earth! All living things are equal!

Language points

explode

（使）爆炸The army took the time bomb away to a safe place and exploded it.

vi （因生气，笑柄而感情）爆发 He exploded with /in anger.

in time

Eventually( 最终） sooner or later （迟早）Soon or early enough( 及时）Don’t worry, I’m sure things will get better in time.

Shall I be in time for the train?

loudly, loud, aloudLoudly:adv. 大声地，吵闹地。强调声音高、不悦耳。Loud: adv.+adj. , 主要指说话声和笑声。常与sing, speak, cry, laugh 连用。Aloud ： adv. （指人）出声地，大声地。为使人听见而发声Allow sb. To do sth. ; allow doing sth.

Permit /advise /consider/forbid doing sth.

Permit/advise/consider/forbid sb. To do sth.

Spread传播、蔓延、伸展、扩延、流传The news spread like wildfire.In the last five years the city has spread out rapidly in all directions.If I tell you the secret, don’t spread it around.

Depend onDepend on/upon +n.Depend on/upon sb. To do sth.Depend on/upon it that---It/that all depends.

你迟早会成功的 .

我的车与你的不一样 .

站在门旁边的那个人是谁 ?

他总是第一个来 , 最后一个离开 .

既然你已经长大了 , 你自己决定吧 .

You’ll succeed in time.

My car is different from yours.

Who is the person standing by the door?

He’s always the first to come and the last to leave.

Now that you have grown up, you can decide it yourself.