Unit 14 Satellites

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Unit 14 Satellites Lesson 53
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The solar system consists of the Sun the
nine planets, over 100 satellites of the planets,
a large number of small bodies (the comets(??)and
asteroids (???) ), and the inter-planetary(???)med
ium. (There are also many more planetary
(???)satellites that have been discovered but not
yet been officially named.)
The Solar System (???)
The inner solar system contains the Sun,
Mercury(??), Venus(??), Earth and Mars(??) The
planets of the outer solar system are
Jupiter(??), Saturn(??), Uranus(???),
Neptune(???)and Pluto(???)
????????
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There are nine planets around the sun in the
solar system. There is one natural satellite
moving around the earth.
No
Does every planet have satellites?
Have you ever seen a man-made satellite in the
sky at night?
How is a satellite sent up into space?
By rocket.
When was the first satellite sent up into space?
In 1957.
Have you ever been to a museum? There are usually
all kinds of exhibitions on in the museums.
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Listen and answer
1) Where do Jane and Zhou Lan decide to go today?
To the Science Museum
2) Why do they want to go there?
Because the weather is not very good and its too
wet for them to go walking around London.
Besides, there is a special exhibition about
space and satellites on in that museum.
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Watch and find the ways of asking other people
about plans and of explaining ones own intention
??????
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The ways of asking other people about plans and
of explaining ones own intention

• What do you feel like doing?
• I feel like..
• Personally, Id rather (not) do
• What would you like to do?
• Id like
• Im planning to do
• What do you plan to do?
• I want / intend / wish / plan to
• Have you decided to ?
• I havent decided what / where to

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Rewrite the dialog as a passage       Hints 1)fe
el like going to a museum 2)have to pay to get
in 3)a special exhibition at the Science Museum
4)make a final decision The first two
sentences Jane and Zhou Lan are in London. They
are wondering what to do today. Zhou Lan feels
like going to a museum since it is too wet to
Model Jane and Zhou Lan are in London. They are
wondering what to do today. Zhou Lan feels like
going to the Natural History Museum since it is
too wet to go walking around London. But Jane
tells her that they have to pay to get in. Then
Jane suggests going to the Science Museum
because a special exhibition is on his month.
Zhou Lan agrees and they make a final decision.
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Dialog Practice
Situation The weather forecast says the weekend
will be fine.Your family wants to have a picnic
outside the city, but you havent decided where
to go. Now you and your sister are talking about
it.
Model A Where would you like to go for the
picnic? B I feel like going to the Childrens
Park. Its very easy for us to go there. A
Yes, its good place for our picnic. But there
will be a lot of people there at
weekends. B How about your plan? A I intend to
go to Huayanxi. Its little bit far, but its the
prettiest place within easy reach. B Thats
a good choice. We can drive there on Saturday
morning. A I think Mother will decide where to
go. B Lets go and ask Mother about her plan.
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Unit 14 Lesson 54 Satellites(1)
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Satellite Artificial, any object purposely placed
into orbit (??) around Earth, other planets, or
the Sun. Since the launching of the first
artificial satellite in 1957, thousands of these
man-made

• moons have been rocketed into Earth orbit.
  Today, artificial satellites play key roles in
  the communications industry, in military
  intelligence(??), and in the scientific study of
  both Earth and outer space.

??????
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Communications Satellites ????
Almost all of the earliest satellites included
some communications Equipment. Over 300.
communications satellites have been launched
since 1957. Today satellites in geostationary
orbit provide voice, data, and television
communications, including the direct broadcast of
television to homes around the world.
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Navigation Satellites ????
The Navstar Global Positioning System
(GPS)(????????) is a network of 24 satellites in
orbit around the earth that provides users with
information about their position and movement. A
GPS receiver computes position
information by comparing the time it takes for
signals from three or four different GPS
satellites to reach the receiver.
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Weather satellite
Weather satellites carry cameras and other
instruments pointed toward Earths atmosphere.
They can provide advance warning of
severe weather and are a great aid to weather
forecasting. NASA launched the first weather
satellite, Geostationary (????????) Operational
Environmental Satellite (GOES) series, which are
in geostationary orbit. GOES provides information
for weather forecasting, including the tracking
of storms.
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Military Satellite ????
Many military satellites are similar to
commercial ones, but they send encrypted (???)
data that only a special receiver can
decipher(??). Military surveillance(??)
satellites take pictures just as other
earth-imaging satellites do, but cameras on
military satellites usually have a higher
resolution(????).
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Science satellite
Earth-orbiting satellites can provide data to
map Earth, determine the size and shape of
Earth,
and study the Dynamics(??) of the oceans and the
atmosphere. Scientists also use satellites to
observe the Sun, the Moon, other planets and
their moons, comets, stars, and galaxies.
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Read and answer
1)Why are satellites so expensive? 2)What can
satellites send back to the earth?
Because it has to be light it has expensive
equipment it usually contains very expensive
cameras.

Radio and TV programs signals information and
photos of weather conditions.
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Listen and answer

1)When we talk about the satellite, we always
refer to the moon. 2)If a rocket does not reach
a speed of 28440 km/h, it will fall back to the
earth. 3)A man-made satellite usually contains
very expensive cameras as well as equipment
for making electricity from sunshine. 4)Before
the satellite goes into its orbit round the
earth, the panels are unfolded in order to catch
the sunshine. 5)Scientists can control the
direction of the satellite by the rocket motor
on the satellite. 6)The satellites for
broadcasting connect broadcasting stations, which
are a long distance from each other. 7)Most of
the satellites for broadcasting remain above the
same place on the earth and travel round the
earth in a very high circle. 8)Weather satellites
send not only information but also photos of
weather conditions to weather stations on the
earth.
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Watch and answer
1.What is a satellite? 2.Why must a rocket reach
a speed of 28,440km/h?3.What can be put into a
satellite?4.What will happen once the satellite
goes into its orbit round the
earth?5.Can we use weather satellites?How?
Keys 1.A satellite is an object,either natural
or man-made which travels in an orbit round
another object in space.
2.Because it must escape the pull of the earth.
3.It contains very expensive cameras.
4.The panels are unfolded in order to catch the
sunshine.
5.Yes, we can.Ships and planes can bee warned so
that they can keep out of the path of
the hurricane.
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Note making

• Types of satellite
• Broadcasting
• Weather
• Communications
• Space

• What satellites can do
• Take photos
• Make electricity
• Change direction
• Receive and send signals
• Collect and send information
• Carry out experiments

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Lesson 55 Satellites (2)
Listen and answer 1. What did the 17 countries
set up an organization for? 2. What was the name
of the first satellite of the organization? 3.
How many countries are there in this group
today? 4. How can you telephone somebody on the
other side of the world? 5 .What was the use of
special cameras? 6. What is the disadvantage of
studying outer space at research stations on the
earth?
1. They set up an organization for sending
telephone signals by satellite.
2. It was called Early Bird.
3. There are now over 100 countries in this
group.
4. With the help of a satellite you can telephone
somebody on other side of the world.
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5. Special cameras can produce pictures showing
where different metals can be found. And they can
also tell the difference between healthy and
diseased plants.
6. The disadvantage of studying outer space at
research station on the earth is that there is a
lot of dust in the earth's air, and the dusty air
makes it difficult to get a clear picture of
space.
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??????
The first artificial satellite to orbit
Earth was Sputnik 1. Built by the Soviet Union
and launched on October 4, 1957, Sputnik had an
elliptical (????)orbit, ranging in altitude from
225 to 950 km (140 to 590 mi). Sputnik broadcast
a steady signal of beeps(???)for 21 days and
burned up in Earths atmosphere upon
reentry(???)on January 4, 1958.
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China launches fourth unmanned test spacecraft
Launching Shenzhou IV
Shenzhou V Manned Spacecraft to Be Launched
This Autumn
The site of launching