(共16张PPT)
初中英语（外研版）微课系列
8B
M3
Unit
2
We
have
not
found
life
on
any
other
planets
yet.
(
Read
and
write)
学习目标
通过本课学习，你将能
运用现在完成时进行表达；
对just、already、yet进行区分；
用现在完成时，描述图片，介绍外星人的活动。
为了达成目标，你需要
熟读Unit
2
所学课文，及时记录课堂笔记；
练习重点语言项目，准备好写作所需的纸张。
课文回顾
1
2
3
4
5
A.
the
scientists'
progress(进程)
C.
the
universe
B.
the
scientists'
questions
D.
the
solar
system
E.
the
life
on
the
earth
and
other
planets
Check(√)
the
true
sentences.
1.
The
earth
is
a
star.
2.
The
sun
is
a
star.
3.
There
is
more
than
one
galaxy
in
the
universe.
4.
The
light
from
the
stars
in
other
galaxies
has
travelled
for
a
long
time
to
reach
us.
5.
Scientists
have
received
many
messages
from
space.
6.
Scientists
have
visited
most
of
the
universe.
√
planet
√
√
×
×
×
重点词语回顾
solar
system
none
environment
communicate
universe
Complete
the
sentences
with
already,
just
and
yet.
I've
just
made
a
model
spaceship
for
our
school
project.
Yes,
it
has
arrived
already.
Scientists
have
not
discovered
life
on
other
planets
in
the
universe
yet.
Has
it
arrived
yet?
1.
He
has
______
had
his
meal,
so
he
can't
go
swimming
with
you.
2.
We
haven't
talked
to
them
_______
because
we
don’t
know
their
language.
3.
Mum,
can
I
watch
TV
now?
I
have
________
finished
my
homework.
4.
-Have
you
cleaned
the
room
_______?
-Yes,
I
have.
just
yet
already
yet
What
have
the
scientists
just
received?(
a
message
from
one
of
our
spaceships.)
They
have
just
received
a
message
from
one
of
our
spaceships.
1.
Where
has
the
spaceship
landed?(Mars)
It
has
landed
on
Mars.
2.
What
has
the
spaceship
discovered?
(people
on
Mars)
It
has
discovered
people
on
Mars.
3.
Why
have
the
people
on
Mars
not
sent
us
a
message?
(do
not
know
how
to)
They
do
not
know
how
to
send
us
a
message.
4.
Why
have
the
people
on
Mars
not
visited
us
on
the
earth?
(do
not
know
how
to)
They
do
not
know
how
to
visit
us
on
the
earth.
Let's
imagine.
Let's
imagine.
5
They
don't
know
how
to
contact
us?
The
language
is
different.
They
are
afraid
of
us.
alien
Look
and
answer:
What
do
the
aliens
often
do?
go
swimming
play
football
lie
in
the
chair
listen
to
the
music
...
read
books
Let’s
write.
Write
a
passage
to
describe
the
picture.
Use
your
answers
to
the
questions
to
help
you.
■We
have
just
received
a
message
from
one
of
our
spaceships.
■It
has
landed
on
Mars.
■It
has
discovered
people
on
Mars.
■They
haven't
sent
us
a
message
because
they
do
not
know
how
to
send
us
a
message.
■They
haven't
visited
us
because
they
do
not
know
how
to
visit
us
on
the
earth.
■What
do
aliens
often
do?
Write
a
paragraph.
______________________________________________________________
______________________________________________________________
______________________________________________________________
_______________________________
学习小结
通过本课学习，我已经能够
运用现在完成时进行表达；
对just、already、yet进行区分；
用现在完成时，描述图片，介绍外星人的活动。
Homework
在笔记本上完善写作；
完成作业本（2）M3U2。
熟读并背诵
M3U2
课文中的三、四两段。
Thank
you
for
listening!
2020年2月录制
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