Unit 12 Life is full of the unexpected. Section A 4a - 4c 课件（共29张PPT）+嵌入音频

(共29张PPT)
Unit
12
Life
is
full
of
the
unexpected.
Section
A
4a
-
4c
n.奶油；乳脂
n.工作日
n.果馅饼；果馅派
n.豆；豆荚
n.市场；集市
pie
bean
market
cream
workday
Grammar
Focus
When
I
got
to
school,
I
realized
that
I
had
left
my
backpack
at
home.
By
the
time
I
got
back
to
school,
the
bell
had
rung.
Before
I
got
to
the
bus
stop,
the
bus
had
already
left.
I
was
about
to
go
up
to
my
office
when
I
decided
to
get
a
coffee
first.
As
I
was
waiting
in
line
with
the
other
office
workers,
I
heard
a
loud
sound.
过去完成时
用法
判断依据
构成
意义
过去完成时表示在过去某个时间或某个动作之前发生的动作或存在的状态，它表示动作发生的时间是“过去的过去”，它是一种相对于一般过去时的时态，没有一般过去时就没有过去完成时。
1.
过去完成时的意义:
2.
过去完成时
构成：助动词had+动词的过去分词
否定式：had
not+动词的过去分词
had
not的缩写形式：hadn’t
3.
过去完成时的用法:
(1)表示一动作或状态在过去某一时间或动作之前已经完成，即发生在“过去的过去”。这个过去的时间可以用by,
before等介词短语或者一个时间状语从句来表示。
例：我醒来时，雨已经停了。
When
I
woke
up,
it
had
stopped
raining.
(2)表示某一动作或状态在过去某时之前已经开始，一直延续到这一过去的时间。常用表延续的时间状语如by
the
end
of+过去的时间点，
by
the
time
+从句等。
例：到去年年底，她已经在这家工厂工作20年了。
By
the
end
of
last
year,
she
had
worked
in
the
factory
for
twenty
years.
4.
过去完成时的判断依据:
(1)由时间状语来判定
①
by+过去的时间点
例：到昨天9点钟时，她已经读完了这本书。
She
had
finished
reading
the
book
by
9
o’clock
yesterday.
②
by
the
end
of+过去的时间点
例：到上个月月底，我们已经完成了所有工作。
We
had
completed
all
the
work
by
the
end
of
last
month.
①含有宾语从句的复合句中：当主句为一般过
去时，且从句的动作先于主句的动作发生时，
从句要用过去完成时。如在told，said，knew，
heard，thought等动词后的宾语从句中。句中。
例：她说她以前已看过这部电影了。
She
said
that
she
had
seen
the
film
before.
(2)由“过去的过去”来判定
②含有状语从句的复合句中，主、从句的动作发生有先后关系，动作在前的要用过去完成时，动作在后的要用一般过去时。
例:
我到达车站时，火车已经离开了。
When
I
got
to
the
station,
the
train
had
already
left.
③表示意向的动词，如hope，wish，expect，
think，intend，mean，suppose等，用过去
完成时表示“原本……，但未能……”。
例：我们本希望你能来，但你没来。
We
had
hoped
that
you
would
come,
but
you
didn’t.
Practice
1.
By
the
time
my
parents
reached
home
yesterday,
I
_____
the
dinner
already.
A.
had
cooked
B.
cooked
C.
have
cooked
D.
was
cooked
2.
He
____
to
play
____
before
he
was
11
years
old.
A.
had
learned,
piano
B.
had
learned,
the
piano
C.
has
learned,
the
piano
D.
learns,
piano
3.
By
the
end
of
last
month,
I
_______
all
the
CDs
of
Justin
Bieber.
A.
collect
B.
collected
C.
have
collected
D.
had
collected
4.
Robert
was
very
upset
that
most
of
his
friends
______
when
he
______
at
the
party.
A.
left;
had
arrived
B.
had
left;
arrived
C.
left;
arrived
D.
had
left;
had
arrived
4a
Make
sentences
using
by
the
time
or
before.
1.
Tim
went
into
the
bathroom.
Mary
got
up.
By
the
time
Mary
got
up,
Tim
had
already
gone
into
the
bathroom.
2.
The
coffee
became
cold.
I
put
cream
in
the
coffee.
Before
I
put
cream
in
the
coffee,
the
coffee
had
already
become
cold.
3.
The
teacher
collected
the
math
homework.
I
got
to
school.
By
the
time
I
got
to
school,
the
teacher
had
already
collected
the
math
homework.
4.
I
completed
the
work
for
my
boss.
The
workday
ended.
By
the
time
the
workday
ended,
I
had
already
completed
the
work
for
my
boss.
5.
The
movie
started.
I
arrived
at
the
cinema.
By
the
time
I
arrived
at
the
cinema,
the
movie
had
already
started.
6.
My
mother
finished
making
the
apple
pie.
I
got
home
from
my
language
course.
By
the
time
I
got
home
from
my
language
course,
my
mother
had
already
finished
making
the
apple
pie.
4b
Fill
in
the
blanks
with
the
correct
forms
of
the
words
in
the
box.
rush
out
forget
arrive
at
go
into
show
up
find
out
1.
By
the
time
I
arrived
at
the
party,
everyone
else
____
already
__________.
2.
When
he
put
the
noodles
into
a
bowl,
he
realized
he
_____________
to
add
the
green
beans.
had
shown
up
had
forgotten
3.
By
the
time
my
mother
came
back
from
the
market,
I
______
already
__________
of
the
door
to
go
to
my
piano
lesson.
4.
Before
she
got
to
the
airport,
she
_____________
about
the
earthquake.
had
rushed
out
had
found
out
rush
out
forget
arrive
at
go
into
show
up
find
out
5.
When
she
__________
the
movie
theater,
she
remembered
she
had
forgotten
to
feed
her
dog.
6.
Before
she
got
a
chance
to
say
goodbye,
he
____________
the
building.
arrived
at
had
gone
into
rush
out
forget
arrive
at
go
into
show
up
find
out
4c
Write
two
true
statements
and
one
false
statement
about
your
day
yesterday.
Then
ask
your
classmates
to
guess
the
false
statement.
1.
By
the
time
I
left
for
school
in
the
morning,
_____________________________________
2.
By
the
end
of
the
school
day,
____________
_____________________________________
3.
By
dinner
time,
I
______________________
Summary
1.
work
v.
worker
n.
2.
burn
过去式
burnt/burned
过去分词
burnt/burned
3.
be
full
of
充满
4.
in
line
with
与……成一排
5.
be
about
to
即将；刚要；正打算
6.
我们直愣愣地盯着燃烧着的大楼上升
起的黑烟，无法相信（这一切）。
We
stared
in
disbelief
at
the
black
smoke
rising
above
the
burning
building.
1.
By
the
time
he
got
up,
he
found
his
father
____
to
work.??
A.
went?
B.
have
gone
C.
gone????
D.
had
gone
Exercise
一、单项选择。
2.
When
I
got
to
the
bus
stop,
the
bus
____
already
____.
A.
has;
left??
B.
had;
left????
C.
has;
been
away??
D.
had;
been
away
3.
—Is
Mount
Tai
the
highest
mountain
in
Shandong?
—I
think
so.
It
is
1,
545
meters
____
sea
level.
A.
above
B.
under
C.
below
D.
along
1.
弗兰克在地震后还活着真是幸运。
Frank
was
lucky
to
be
_____
after
the
earthquake.
2.
截止到去年年底，他已经收集了100张邮票。
____
____
____
____
last
year,
he
____
already
________
100
stamps.
alive
By
the
end
of
had
collected
二、根据汉语意思完成句子。
3.
餐馆里挤满了人，所以我不得不等。
The
restaurant
___
___
___
people,
so
I
had
to
wait.
4.
她即将飞到巴黎。
She
_____
_____
_____
fly
to
Paris.
is
about
to
was
full
of
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