(共18张PPT)
M3U2
知识点
Scientists
think
that
there
has
been
life
on
the
earth
for
hundreds
of
millions
of
years.
科学家们认为,地球上存在生命(的历史)已经有亿万年了。
含think的主从复合句:本句为含有think的主从复合句,即:主语+think+宾语从句。
They
think
he
is
a
thief.
否定前移：当主句的主语是第一人称,谓语动词是
think,believe,expect等,且宾语从句为否定
句时,习惯上把否定词转移到前面的主句中,称为“否定转移”.
I
don't
think
that
she
cares
about
math.我认为她不重视数学。
I
don’t
believe
that.
2.
hundreds
of
数以百计的;成百上千的
hundreds
of
+
名词复数
基数词+
hundred
+
名词复数
Our
school
is
so
famous
that
hundreds
of
people
come
and
visit
it
every
term.
There
are
about
three
hundred
students
in
our
school.
2.
None
of
them
has
an
environment
like
that
of
the
earth,
so
scientists
do
not
think
they
will
find
life
on
them.
none
作代词,意为“没有一人;没有一个;一点儿也没有”,通常用于表示三者或三者以上的人或物中,既可指人也可指物,常与of连用。none
of后接复数概念的名词或代词作主语时,谓语动词用单、复数形式均可;
none
of后接不可数名词作主语时,谓语动词用单数形式。
None
of
them
has/have
heard
of
him
before.
None
of
the
money
on
the
table
is
mine.
(易混辨析]none
与no
one
none指数量上“一个也没有”,可用来回答
how
many或how
much引导的疑问句;
而no
one指的是“没有人”,只能回答who引导的疑问句。
-How
many
trees
are
there
behind
your
house
-None.一棵也没有。
-Who
is
absent
today
-No
one.
3.
The
sun
and
its
planets
are
called
the
solar
system。
本句中的
are
called
是
call
的被动语态,意为“被称为”。
一般现在时的被动语态的基本构成为“主语+am/is/are+及物动词的过去分词+其他.”。
A
lot
of
water
is
used
in
this
city.
在这个城市里，很多水被使用。
The
dress
is
bought
in
the
shop.
这条裙子在这家店里被买。
4.
However,
no
spaceship
has
travelled
far
enough
to
reach
other
stars
in
our
Galaxy.
然而,没有航天器能够飞行得足够远以到达我们的银河系中的其他恒星上。
“adj./adv.+enough
to
do
sth.”足够……做某事
He
is
careful
enough
to
find
it.
他足够细心能找到它。
知识拓展
enough
adj.
足够的
+
n.
enough
water/homework
adj./adv.
+
enough
adv.
足够地
careful
enough
old
enough
5...with
so
many
stars
in
the
universe,
are
we
alone,
or
is
there
life
out
there
in
space
…
宇宙中有这么多星球,我们是孤独的吗,还是太空中还有其他生命存在呢
句中的
with
so
many
stars
in
the
universe
是介词短语,
在句中作状语,表示伴随。
6.
alone
与
lonely
alone
adj.
单独的、独自的；adv.
单独地、独自地
强调客观情况,侧重说明独自一人或一方,没有同伴或助手
lonely
只能作形容词,
强调主观感情,心里孤单,侧重主观感受
[一句辨义]
He
lives
alone,
but
he
never
feels
lonely.
他一个人生活,
但他从不感到孤单。
6.
Why
has
no
one
communicated
with
us
为什么没有一个人和我们联系过
communicate
with
sb.
和某人交流
I
can
communicate
with
foreigners
easily.
我能轻松地和外国人交流。
7.
For
example,
in
English,
Saturday
is
named
after
the
planet
Saturn,
the
sixth
planet
from
the
sun.
例如，
英语中，
星期六以土星的名字命名，它是太阳系中的第六颗行星。
be
named
after…
以……的名字命名
The
book
is
named
after
a
girl.
这本书是以一个小女孩名字来命名的。
M3
语法
already
已经，用于肯定句中或句末
He
has
already
had
supper.
I
have
watched
it
already.
just
刚刚；刚才;
Li
Ming
has
just
reached
London.
yet
还；尚，多用于否定句或疑问句末
Has
it
arrived
yet
No
one
has
been
to
it
yet.
before
以前；表示在某个时间点以前
David
has
been
to
China
before.
never
从不；
Betty
has
never
read
so
interesting
a
book.
现在完成时（三）
单项选择
1.(2016·广西玉林)一
you
ever
Han
Hong
sing
live
-Of
course.
A
couple
of
times
in
different
cities.
A.
Have;
seen
B.
Did;
see
C.
Do;
see
D.
Are;
seeing
2.He
in
this
factory
for
20
years
already.
A.
will
work
B.
works
C.
has
worked
D.is
working
A
C
3.-Dave,we
will
leave
in
10minutes.
Are
you
ready
-No,
I
our
guidebook
yet.
A.
don't
pack
B.
didn't
pack
C.
have
packed
D.
haven't
packed
4.(2016·广西南宁)I
have
finished
my
homework.
I
finished
it
an
hour
ago.
A.
yet
B.
already
C.
ever
D.
never
D
B
5.Our
school
is
so
famous
that
people
come
to
visit
it
every
term.
A.Hundred
B.hundreds
C.hundred
of
D.hundreds
of
6.All
the
workers
were
very
tired,
but
of
them
would
have
a
rest.
A.all
B.neither
C.any
D.none
7.-Kitty,will
you
go
to
see
the
film
Iron
Road
this
evening
-No,I
won’t.
I___it
already.
A.saw
B.have
seen
C.see
D.will
see
D
D
B
8.The
astronaut
can
see
the
Great
Wall
.
A.
on
space
B.in
a
space
C.in
the
space
D.in
space
9.-
to
the
United
States
-No,
never,
but
I
went
to
Canada
a
few
years
ago.
A.
Have
you
been
B.
Have
you
gone
C.
Did
you
go
D.
Will
you
go
10.Tom's
grandfather
lives
in
the
village,
but
he
doesn't
feel
because
he
has
many
friends
there.
A.
alone;
alone
B.
lonely;
lonely
C.
alone;
lonely
D.
lonely;
alone
D
A
C
11.I’ve
arrived
at
our
school,
but
I
haven’t
entered
the
classroom
.
A.
already;
already
B.
yet;
already
C.
yet;
yet
D.
already;
yet
12.We
want
to
some
information
about
2016
Olympics
on
the
Internet.
A.
invent
B.
search
for
C.
work
out
D.
find
out
13.一
,Li
Ming
-I'm
looking
for
my
pencil
case.
A.
What
do
you
think
B.
What
are
you
up
to
C.
Don't
panic
D.
Guess
what
D
B
B(共10张PPT)
none
environment
that
solar
system
solar
system
pron.
没有一人；没有
一个；一点儿也没有
n.
环境
pron.
那，那个(指代
已被提及的事物)
adj.
太阳的；与太阳有关的
n.
系统；体系
星系；(尤指)太阳系
Words
review
Read
after
the
tape
and
speak
out
the
Chinese
immediately.
group
galaxy
universe
light
impossible
out
communicate
n.
群；组
n.
星系
n.
宇宙
n.
光；光线；光亮
adj.
(事情)办不到的，不可能的
adv.
在远方
v.
联系；交流
Words
review
前缀im-
+
possible
1.
none
pron.
没有一人;没有一个;一点儿也没有
Although
they
have
three
sons,
none
of
them
lives
with
their
parents.
反义
all
pron.
全部
辨析
none一般指三者或三者以上“都不”,
neither
意为“(两者)都不”,指的是两个人或两个物.
2.
environment
名n.环境
不可数
protect
the
environment
保护环境
They
are
polluting
the
environment.
联想:
environmental
adj.环境的;有关环境的
environmentalist
n.环境保护论者
3.
solar
形adj.太阳的;与太阳有关的
The
sun
is
the
center
of
our
solar
system.
短语
solar
system
星系;(尤指)太阳系
solar
energy
太阳能
solar
cell太阳能电池
4.
group
n.群;组
groups
writing
group
写作小组
A
group
of
trees
stand
on
top
of
the
hill.
山顶上长着一片树林。
5.
universe
名n.宇宙
Our
earth
is
just
a
small
part
of
the
universe.
我们的地球只是宇宙的一小部分。
6.
impossible
adj.(事情)办不到的,不可能的
助记im-(否定前缀).+possible(adj.可能的)=impossible[词缀记忆法]
It
is
impossible
to
do
all
the
work
in
a
day.
反义
possible
adj.可能的
联想
impossibly
adv.不可能地
归纳in-,im-,un-,dis-等否定前缀可放在一些词前表否定。如:
correct
正确的--
incorrect
不正确的;
polite有礼貌的--
impolite
无礼的,粗鲁的;
necessary
必要的--
unnecessary
不必要的
7.
communicate
动v.联系;交流
communicating
communicated
communicated
communicate
with
与......交流
I
don’t
know
why
she
doesn’t
communicate
with
me.
