必修四Unit 2 Working the land Language points 课件(69张PPT)

(共69张PPT)
Unit
2
Working
the
land
Language
points
Learning
aims
1、get
more
familiar
with
the
text
2、Learn
the
key
words
,
expressions
and
sentence
structures
in
the
text
Sentence
Explanations
1.
Although
he
is
one
of
China’s
most
famous
scientists,
Yuan
Longping
considers
himself
a
farmer,
for
he
works
the
land
to
do
his
research.
【分析】①这是一个含让步状语从句的主从复合句。其结构为:
让步状语从句(Although
he
is
one
of
China’s
most
famous
scientists)+主句(Yuan
Longping
considers
himself
a
farmer)。
②主句中包含“consider
+
宾语
+
n.”结构。
③
for引导的从句并不表示原因,
而只是为主句中所说的话提供推断的理由,
加以解释,
此时for前要加逗号。
e.g.
The
shop
was
quite
new,
for
it
had
opened
only
the
week
before.
注意：work
the
land表示“耕种土地”，相当于grow
crops
on
the
land。
【仿写】
尽管他是班上最好的学生之一，班长仍然刻苦学习，因为他明白学无止境。
_____
in
the
class,
_____
hard,
for
he
knows
there
is
no
end
to
learning.
1)
辨析because,
for
because表示理由充分,有必然因果关系,
能回答以why引起的问句。
He
wants
everyone
to
call
him
a
farmer,
for
that’s
how
he
regards
himself.
—
Why
aren’t
you
coming
with
us
to
the
concert?
—
Because
I
have
got
a
bad
headache.
—
你为何不与我们一起去看音乐会？
—
因为我头痛。
for
(因为,由于),补充说明理由,不用于句首;不能回答以why引起的问句。如：
The
shop
was
quite
new,
for
it
had
opened
only
the
week
before.
?
since侧重主句，从句表示显然的或已为人所知的理由，常译为“因为”、“既然”，语气比because稍弱，通常置于句首，表示一种含有勉强语气的原因。
as是常用词，它表示的“原因”是双方已知的事实或显而易见的原因，或者理由不是很重要，含义与since相同，但语气更弱，没有since正式，常译为“由于，鉴于”。从句说明原因，主句说明结果，主从并重。
____
he
says
so,
it
must
be
true.
___
it
was
late,
I
made
haste
to
go.
The
day
breaks
_______
the
sun
rises.
The
day
breaks,
___
the
birds
are
singing.
since
As
because
for
2.
Indeed,
his
sunburnt
face
and
arms
and
his
slim,
strong
body
are
just
like
those
of
millions
of
Chinese
farmers,
for
whom
he
has
struggled
for
the
past
five
decades.
(P10)
【分析】
这是一个复合句，主句的主语是_____，like
those
of
millions
of
Chinese
farmers是介词短语作_____，for
whom引导的定语从句修饰millions
of
Chinese
farmers。
注意：关系代词位于介词之后，指人时要用whom，指物时要用which。
【仿写】
的确，他的相貌举止很像他的哥哥，过去几年里他和哥哥一直在为邻居做好事
Indeed,
his
appearance
and
manners
are
_____,
_____
good
deeds
for
their
neighbor
in
the
past
few
years.
3.
In
1973,
he
became
the
first
agricultural
pioneer
in
the
world
to
grow
rice
that
has
a
high
output.
【分析】
本句中动词不定式(to
grow
rice)
作定语,
修饰
the
first
agricultural
pioneer。
不定式放在表示次序的词the
first,
the
last,
the
best以及the
only,
the
very,
the
right等词后面,
且这些词与动词不定式有逻辑上的主谓关系，结构为：the
first/last/best/only/very/right
...+n.
+
to
do
sth.表示“第一个/最后一个/最好的一个/唯一的/恰好的/合适的……做某事的人/物”。
他总是第一个来并且最后一个离开。
He
is
always
the
first
to
come
and
the
last
to
leave.
最后一个离开正在下沉的船的那个人是船长。
The
last
man
to
leave
the
sinking
ship
was
the
captain.
4.
This
special
strain
of
rice
makes
it
possible
to
produce
one-third
more
of
the
crop
in
the
same
fields.(金榜P28-1)
【分析】make
it
+宾语补足语+动词不定式,
it
做形式宾语,
动词不定式是真正的宾语。
it做形式宾语,
通常和下列动词连用:
consider,
think,
make,
find,
believe,
count,
declare,
deem,
fancy,
feel,
guess,
imagine,
judge,
prove,
see,
show,
suppose,
understand,
take等。
【翻译】
这种特殊的稻种使得同样的田地多收获三分之一的产量。
【高考链接】
We
feel
_____
our
duty
to
make
our
country
a
better
place.
(天津2011)
A.
it
B.
this
C.
that
D.
one
5.
These
increased
harvests
mean
that
22%
of
the
world’s
people
are
fed
from
just
7%
of
the
farmland
in
the
world.
(P10)
【分析】
这是一个复合句，主句是_____，that引导了一个_____从句。
注意：“百分数或分数+名词”作主语时，谓语动词的数与该名词的数要保持一致。
【翻译】这一粮食产量的增加意味着中国仅仅7%的耕地养活了世界22%的人口。
【仿写】收集到的资料表明超过20%的野生动物已经在森林里消失。
The
collected
information
shows
that
more
than
_____
in
the
forest.
Words
1.
regard
regard...as...;
将......认为
We
regarded
her
as
the
best
writer
among
us.
in/
with
regard
to
sb./sth.
关于,至于
a
country’s
laws
in
regard
to
human
rights
一个国家关于人权的法律
2.
In
many
ways,
he
is
one
of
them,
and
he
has
struggled
for
the
past
five
decades
to
help
them.
常与现在完成时连用的时间状语
(1)
already,
yet,
ever,
just,
recently,
lately,
never,
before
(adv.)
The
boy
has
already/just
got
home.
I
haven’t
heard
from
him
yet
/recently
/lately.
I
have
seen
the
old
man
somewhere
before.
(2)
since/for
I
have
lived
in
Beijing
since
2000.
I
have
lived
in
Beijing
since
I
arrived
here.
I
have
lived
in
Beijing
for
5
years.
struggle
(金榜P19-1)
v.挣扎；努力；拼搏；斗争
n.
(为争取自由、政治权利等而进行的)斗争，奋斗
struggle
with与……斗争
struggle
for
为争取……而斗争
struggle
against与……斗争；为反对……而斗争
struggle
to
do
sth.
(=make
great
efforts
to
do
sth.)
努力做某事
struggle
to
one’s
feet
挣扎着站起来
eg:
She
struggled
to
keep
back
the
tears.
她努力忍住泪水。
It
was
a
hard
struggle
to
get
my
work
done
on
time
为使工作按时完成,
我做了一番努力。
完成句子
①我们应当帮助那些仍在为独立而斗争的人们。
We
should
help
those
who
are
still_________________
②他们得和各种各样的困难作斗争。
They
had
to_____________________
Answers:
①struggling
for
independence
　②struggle
with/against
all
kinds
of
difficulties
3.
Expand
（金榜P20-3）
v.扩大；扩展；增加；增长；（使）膨胀；阐述；使变大
常用结构：
expand...into...将……扩展/发展成……
expand
on
阐述；详谈
He
is
thinking
of
expanding
his
business.
他在正考虑扩大他的生意。
In
ten
years
the
city’s
population
expanded
by
12%.
十年之中,该市人口增加了百分之十二。
联想拓展:
expansion
n.
展开；膨胀；扩展
expansive
adj.
广阔的；易膨胀的
4.
equip（金榜P21-6）
vt.
&
vi.
配备；装备
常用结构：
equip
sb./sth.
with
用……武装某人；用……装备某物
equip
sb./sth.
for
为……而武装某人；为……而装备某物
a
piece
of
office
equipment
一件办公设备
They
equipped
themselves
for
the
expedition.
他们为远征准备装备。
A
good
education
should
equip
you
for
life.
良好的教育能使你受用终生。
完成句子
①The
soldiers
were
well
(装备)________________weapons.
②This
library________________(为……而装备)
atomic
research.
③Our
classroom
____________
(装备有)
a
computer
and
a
tape
recorder.
①equipped
with
②
is
equipped
for
③
is
equipped
with
5.
export
v./n.
出口（金榜P21-7）
反义词：import
v./n.
进口
Eg:China
exports
to
many
foreign
countries.中国向许多国家出口物资。
We
export
goods
to
over
40
different
countries.
The
import
of
cotton
goods
went
up
sharply
in
1986.
在1986年,棉织品的进口猛增。
6.
confuse
v.使困惑；混淆；搞乱（金榜P21-8）
confusion
n.混乱；紊乱；混乱状态
confusing
adj.令人困惑的；使人混乱的
confused
adj.
感到困惑的；被弄糊涂的
confuse
A
with/
and
B
[搭配]把……混同；辨别不清
⑴
He
was
really
__________(confuse)
by
the___________
(confuse)
problem
which
also
________other
people
for
a
long
time.
⑵
When
the
earthquake
occurred
everything
was
in
___________
.(confuse)
⑶
I’m
always
________John
_______
Paul
confused,
confusing,
confused,
confusion,
confusing,
with/and
6.
regret
vt.&
vi.
后悔；遗憾
n.
遗憾；懊悔
常用结构：
regret
doing
后悔做了某事
regret
to
do遗憾将要做某事
much
to
one’s
regret
深感遗憾
with
regret
遗憾地
Tom
regretted
telling
his
parents
the
thing.
汤姆后悔告诉了父母那件事。
I
regretted
to
tell
you
you
hadn’t
passed
the
driving
test.
我很遗憾地告诉你你没有通过驾驶考试。
He
told
me
with
regret
that
he
couldn’t
come
to
the
party.
他很抱歉地对我说他不能参加这个聚会了。
He
gave
up
teaching
in
1998,
much
to
his
students
regret.
他于1998年放弃了教学，这使他的学生很遗憾。
拓展：regrettful
adj
后悔的；遗憾的
regrettable
adj
可惜的；令人遗憾的
Expressions
1.
thanks
to幸亏;由于;因为（金榜P20-5）
Eg:Thanks
to
your
help，much
trouble
was
saved.
多亏你的帮助,
减少了许多麻烦。
拓展:thanks
to
=
because
of
由于…
多亏…
Thanks
to/
Because
of
your
support
,
we
won
the
game.
eg:
由于交通堵塞我迟到了。Thanks
to
the
traffic,
I
was
late.
2.
rid…of
…
使…摆脱/清除…（金榜P21-5）
rid
a
house
of
mice
清除室内老鼠
rid
oneself
of
debt
还清债务
rid
sb.
/
sth.
of
摆脱某事/人
eg:
You
must
rid
yourself
of
these
old-fashioned
ideas.
你必须摆脱这些陈腐观念的束缚。
联想拓展
be
rid
of
摆脱
get
rid
of
摆脱；除掉；去掉
eg:
It
won’t
be
long
before
we
can
be/get
rid
of
the
pest
altogether.
不用太久，我们就能把这种害虫消除干净。
3.
be
satisfied
with
对…表示满足或满意
Eg:
You’ve
done
well
at
school.I’m
very
satisfied
with
you.
你在学校干得不错，我对你很满意。
【考点聚焦】
1）近义词组:be
content
with?
同根词:satisfy
vt.
满足;使满意;
satisfaction
n.
满意；满足
satisfied
adj.（人/表情）感到满足的
satisfying
adj.
(事物)令人满意的
2）be
satisfied
to
do对做……感到满意。如：
He
was
satisfied
to
win
the
race.
他对赢得赛跑感到满意。
4.
would
rather宁愿，宁可
would
rather
(not)
do
would
rather...than...是常用句式，意为“宁可（愿）……（而）不要（愿）……”
=
prefer
to
do
...
rather
than
do
would
rather＋从句时，从句要用虚拟语气，用动词的过去时表示。
would
rather
have
done
本想做……（而实际上未做）
eg:
I’d
rather
you
didn’t.
(常用来委婉拒绝别人)我希望你不要。
He
would
rather
stay
at
home
watching
TV.
他宁愿待在家里看电视。
I’d
rather
not
go
there.
我宁愿不去那里。
I’d
rather
you
came
tomorrow
than
today.
我宁愿你明天来而不是今天来。
I’d
rather
have
made
a
telephone
call
to
him
yesterday.
我昨天本想给他打个电话的。
Homework
1.
Finish
ex.1-3
on
P12
2.
跟踪练习on
P22
of
Jinbang
3.
Preview
Grammar
on
Jinbang
P26-27.
5.
Dr
Yuan
Longping
grows
what
is
called
super
hybrid
rice.
e.g.
I
don’t
quite
understand
what
you
are
explaining.
Please
watch
what
I
am
doing
carefully.
2)
What
=the
thing(s)
that
1)
Super
特级，超级
____
the
emperor
saw
was
quite
different
from
_____
the
old
minister
told
him.
A.
What,
that
B.
That,
what
C.
Which,
that
D.
All,
all
It
is
pretty
well
understood
_______
controls
the
flow
of
carbon
dioxide
in
and
out
the
atmosphere
today.
A.
that
B.
when
C.
what
D.
how
6.
This
special
strain
of
rice
makes
it
possible
to
produce
one-third
more
of
the
crop
in
the
same
fields.
it
在句中作形式宾语,
真正的宾语为to
produce…,
结构为:
动词(make,
feel,
think,
regard…)+it
+adj+
to
do.
e.g.
We
think
it
important
to
learn
English
well.
I
like
____
in
the
autumn
when
the
whether
is
clear
and
bright.
A.
This
B.
that
C.
it
D.
one.
7.
This
special
strain
of
rice
makes
it
possible
to
produce
one-third
more
of
the
crop
in
the
same
fields.
make
it
+宾语补足语+动词不定式,it
做形式宾语,动词不定式是真正的宾语。it做形式宾语,
通常和下列动词连用:
We
consider
it
our
duty
to
support
good
leaders.
consider,
think,
make,
find,
believe,
count,
declare,
deem,
fancy,
feel,
guess,
imagine,
judge,
prove,
see,
show,
suppose,
understand,
take等.
The
new
method
makes
it
possible
to
complete
the
task
faster.
Tom
found
it
very
embarrassing
to
be
reminded
of
the
long-standing
debt.
Susan
deemed
it
advisable
to
keep
the
matter
secret.
We
all
feel
it
nice
to
be
able
to
visit
that
distinguished
university.
Who
can
prove
it
wrong
to
have
a
“make-money-quick”
mentality?
The
guide
thought
___
wrong
to
eat
monkeys.
A.
this
B.
it
is
C.
it
D.
that
was
8.
Dr
Yuan
searched
for
a
way
to
increase
rice
harvest
without
expanding
the
area
of
fields.
▲
search
=
try
to
find
by
looking
for
“搜查”。
They
searched
everywhere
but
could
not
find
the
lost
child.
他们各处都找遍了,
始终找不到丢失的小孩。
The
home
was
searched
but
no
one
was
found.
搜查了房屋但一个人也未发现。
▲
search常用的搭配：
　
search
sb./sth.
搜查某人/某物
search
for
sb./sth.
搜寻某人/某物
search
sth./sb.
for…搜查某物/某人以寻找……
in
search
of
寻找
search
out
发现
注意：
search
sb.指“搜查某人”,
指对某人进行搜身。
search
for
sb.指“搜寻某人”,
指为了要找到某人进行搜寻,
相当于look
for。例如：
The
policeman
searched
the
thief
to
see
what
he
had
in
his
pockets.
警察搜查小偷,
看他口袋里有什么东西。
The
villagers
are
searching
for
the
missing
child.
村民们正在搜寻那个失踪的孩子。
9.
Thanks
to
his
research,
the
UN
has
more
tools
in
the
battle
to
rid
the
world
of
hunger.
1)
thanks
to表示“幸亏,多亏”多用于表达正面意思,
相当于感谢,
在句中作状语和表语。
Thanks
to
your
help，much
trouble
was
saved.
多亏你的帮助,
减少了许多麻烦。
Animals’
living
environments
have
been
getting
worse
___
the
increase
in
industrial
pollution.
A.
thanks
to
B.
because
C.
as
D.
since
2)
rid…of
…
使…摆脱/清除…
rid
a
house
of
mice
清除室内老鼠
rid
oneself
of
debt
还清债务
[类似用法动词]：
inform/
warn/
cure…of…,
The
sales
manager
asked
his
men
to
inform
him
of
everything
concerning
the
sales
in
time.
销售部经理让他手下的人把关于销售量的情况及时报告他。
10.
Using
his
hybrid
rice,
farmers
are
producing
harvests
twice
as
large
as
before.
英语中的倍数表达法共有三种形式:
(1)
倍数
+
形容词/副词的比较级
+
than...
(2)
倍数
+
as
+形容词/副词的原级
+
as...　
(3)
倍数
+
the
+
名词+
of...
This
building
is
five
times
higher
than
that
one.
这座楼比那座楼高出五倍。
This
building
is
five
times
as
high
as
that
one.
这座楼是那座楼的五倍高。
This
building
is
five
times
the
height
of
that
one.
这座楼是那座楼的五倍高。
The
new
building
is
four
times
the
size
of
the
old
one.
It
is
reported
that
the
United
States
uses
___
energy
as
the
whole
of
Europe.
A.
as
twice??
??
B.
twice
much??
C.
twice
much
as?
??
D.
twice
as
much
11.
And
he
would
rather
keep
time
for
his
hobbies.
would
rather
宁愿，宁可
He’d
rather
work
in
the
countryside.
[用法1]：would
rather…than…
宁愿…而不…，与其…不如…
I
would
rather
watch
TV
at
home
than
go
to
the
cinema.
[用法2]：would
…
rather
than…
=would
rather…than…
Facing
the
enemies,
our
soldiers
would
die
rather
than
surrender.
面对敌人,
我们的战士宁死不屈。
Rather
than
refuse
to
help
you,
I
would
borrow
money
from
my
friends.
我宁可向朋友借钱,
也不愿拒绝帮助你。
[用法3]：would
rather后面也可跟从句表示主语宁愿某人做某事。这时，从句谓语应用虚拟语气，即用一般过去时表示现在或将来要做的事；用过去完成时表示已经做过的事或过去要做的事。
I’d
rather
you
hadn’t
told
him
the
news
that
day.
[用法4]:
would
rather
have
done
sth.
表示主语要做某事,
而结果却事与愿违。
I’d
rather
have
left
a
note
on
her
desk.
我本想留张字条在她的书桌上。
(事实上没有)
典型例题：
----
Shall
we
go
skating
or
stay
at
home?
----
Which
____
do
yourself?
do
you
rather
B.
would
you
rather
C.
will
you
rather
D.
should
you
rather
答案B
would
rather
do
sth.
更喜欢做…
1)
too
much
与much
too的区别
too
much通常位于动词之后,修饰动词,too做much的状语,后面也可接名词。
12.
Indeed,
he
believes
that
a
person
with
too
much
money
has
more
rather
than
fewer
troubles.
She
does
talk
too
much,
doesn’t
she?
He
has
too
much
work
to
do.
而much
too则常用在形容词或副词之前修饰形容词或副词。
The
dress
is
much
too
long
for
me.
这衣服我穿太长了。
I
got
into
the
taxi
and
drove
much
too
fast.
我上了出租车,
并开得飞快。
2)
rather
than
而不是
Mary,
rather
than
her
roommates,
is
going
to
Beijing.
要去北京的是玛丽,
而不是她的室友们。
注意:
rather
than
连接两个名词或代词作主语时,谓语动词应与rather
than
前面的名词或代词在人称和数上保持一致。
She
ran
rather
than
walked.
她跑着而不是走着。
He
is
a
student
rather
than
a
worker.
他是学生,不是工人。?
They
lost
some
books
rather
than
money.
他们丢了一些书,
而不是钱。
I
decided
to
write
rather
than
(to)
telephone.
我决定写信而不打电话。
14.
He
therefore
gives
millions
of
yuan
to
equip
others
for
their
research
in
agriculture.
Therefore
adv.
因此，因而
equip
vt.
装备，配备，供给，提供
He
equipped
himself
for
a
long
journey.
他为长途旅行准备行装。
Proper
education
will
equip
one
for
a
job.
接受一定的教育就使你具备就业的能力.
If
you
had
the
chance
to
do
something
to
help
end
hunger
in
the
world,
what
would
you
do
?
Discussion
There
is
still
hunger
in
the
world.
The
measures
taken
to
deal
with
hunger
Invent
a
new
kind
of
plant
to
produce
more
food.
Find
a
new
sort
of
fertilizer(肥料)to
give
rice
enough
nutrition
Find
some
new
ways
to
stop
the
pollution
to
the
environment
and
protect
the
soil
in
the
field.
Writing
practice
Write
a
short
biography
about
Dr.
Yuan
(130
words,
a
writing
plan
is
required.)
2.
Learned
the
words
by
heart.
Homework
http://www.99dyw.co/
九九电影网
http://www.99dyw.tv/
九九电影网
http://www.九九电影网
www.youhuijuan.co
www.
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