HG Cambridge Bilingual
4.1Education
Human organs
黄广剑桥双语教育
Where am I in the
world?
country
county/ province
continent
town/city
street
district
Can you write your address?
Street –
City/ Town –
District County/ Province –
Country –
Continent -
Where am I in the
world?
Pin
Point
Put a pin
on a point
How do you pinpoint exact locations on a world map?
Pin
Planet Earth is huge, so how do we pinpoint the exact
location of places on our planet?
Point
We map the Earth’s surface with lines called latitude and
longitude. Imagine our planet as a huge ball or sphere.
At one end is the North Pole and at the other, the South
Pole. In the middle, circling the Earth between the two
poles, is an imaginary line called the equator. Its line of
latitude is zero degrees (0°).
Put a pin on a point
How do you pinpoint exact locations on a world map?
Planet Earth is huge, so how do we
pinpoint the exact location of places on
our planet?
We map the Earth’s surface with lines
called latitude and longitude. Imagine
our planet as a huge ball or sphere.
At one end is the North Pole and at
the other, the South Pole. In the
middle, circling the Earth between the
two poles, is an imaginary line called
the equator. Its line of latitude is zero
degrees (0°).
How do you pinpoint exact locations on a world map?
More lines of latitude
circle the Earth from
east to west, parallel to
the equator.
They are the same
distance apart (about
111 km); each distance
is measured in degrees,
0–90° to the north and 0–
90° to the south.
How do you pinpoint exact locations on a world map?
Lines of longitude run from the
North Pole to the South Pole.
The lines divide the Earth’s
surface into vertical sections,
like pieces of an orange.
These lines are measured in
degrees too, 0–180° to the
east and 0–180° to the west.
How do you pinpoint exact locations on a world map?
What happens when a location
is between the lines?
We divide the degrees into
minutes and seconds, so
the exact location can be
found. This code is called a
coordinate.
Remember that these are
imaginary lines – you can’t
actually see them!
Review!
latitude
equator
longitude
South Pole
We are going to use the globes to find cities
latitude
equator
longitude
South Pole
We are going to use the globes to find cities latitudes and longitudes
First we need to find the longitudes and latitudes
Longitude
for lines
going North
to South.
Latitude for
lines going
East to West.
We are going to use the globes to find cities latitudes and longitudes
What is the closest city to
0 ˚latitude
80˚ longitude
Quito,
Ecuador
We are going to use the globes to find cities latitudes and longitudes
What is the closest city to
20 ˚latitude
110˚ longitude
Haikou,
China
We are going to use the globes to find cities latitudes and longitudes
What coordinates is Munich on
_____
50 ˚ latitude
10 ˚ longitude
____
Munchen ,
Germany
Prepositional phrases
with – we use with to talk about what we use to do
something.
“We map (v) the
earth with lines
called latitude
and longitude.”
Prepositional phrases
between – something being in the middle of two
things.
“In the middle,
circling the
Earth between
the two poles
is…. a line called
the equator.
Prepositional phrases
from – where something starts
More lines of
latitude circle
the Earth from
East to West.
East
West
Prepositional phrases
To – where something goes
More lines of
latitude circle
the Earth from
East to West.
East
West
Prepositional phrases
Into – we change one thing from something else.
The lines divide
the Earth’s
surface into
vertical sections.
Prepositional phrases
to
with
from
between
into
We need to cut the cake
into
_________
pieces. We are
going to cut the cake
with
_________
a knife. Cut the
from
cake _______
the outside
to
____
the inside! When you
are finished put the napkin (餐
巾 ) between
____ the plate and the
cake.