人教版高一英语必修四 Unit 2 Working the land 阅读（导学案，无答案）

U2,
B4
Working
the
land
阅读(2)导学案
【学习目标】
1.
深入理解课文，掌握文章结构，培养快速阅读，整体理解的能力。
2.
通过自主学习，合作探究，了解有机和无机种植，科学耕种，珍惜粮食，勤俭节约。
【自主学习】
Task
I:
Read
the
story
and
answer
the
following
questions.
1.
What
is
“organic
farming”
__________________________________________________________________
2.
What
do
organic
farmers
prefer
to
use
as
fertilizer
3.
Why
do
organic
farmers
grow
peas
or
soybeans
after
corn
or
wheat
4.
Why
are
chemical
fertilizers
so
popular
in
farming
today
5.
What
is
the
main
reason
for
using
organic
farming
methods
____________________________________________________________________
Task
II.
Read
the
passage
carefully
and
choose
the
correct
answers.
1.
Which
statement
is
WRONG
according
to
the
text
A.
All
crops
are
not
organic.
B.
Recently,
the
term
“organic
farming”
has
gained
another
meaning.
C.
All
farmers
use
fertilizers.
D.
Scientists
believe
some
chemical
fertilizers
are
better
for
people.
2.
Which
is
not
the
reason
why
organic
farmers
prefer
natural
waste
from
animals
A.
It
can
keep
the
food
free
from
chemicals.
B.
It
can
keep
the
air,
soil
and
water
free
from
chemicals.
C.
It
can
kill
harmful
pests.
D.
It
can
make
the
soil
richer
in
mineral.
3.
What
is
the
advantage
of
using
chemical
fertilizers
A.
Leaving
chemicals
in
the
ground
for
a
long
time
is
good
for
water
supply.
B.
They
can
get
the
soil
exhausted.
C.
They
can
kill
helpful
bacteria.
D.
They
can
kill
harmful
pest.
4.
The
organic
farmers
do
the
followings
except
______.
A.
adding
fertilizers
which
is
rich
in
mineral
B.
changing
crops
every
two
or
three
years
C.
planting
seeds
in
different
layers
of
the
soil
D.
planting
grass
between
crops
to
prevent
the
soil
from
being
blown
away
Task
III.
【词汇考查】
Translate
the
following
words
into
English
1.
化肥
_______________________
2.
对……造成损害
_______________________
3.
洗掉某物
_______________________
4.
导致;
造成(后果);
通往
_______________________
5.
逐渐增强,
建立
_______________________
6.
另外(还有)
________________________
7.
使……免受(影响);
________________________
8.
集中(注意力、精力)于
________________________
9.
每隔几年
________________________
10.
避免做……
________________________
【合作探究】
Task
IV.
语言点解析
1.
These
chemicals
in
the
food
supply
build
up
in
people’s
bodies
over
time.
★
build
up增加；使（某人）逐步恢复体力；
Ex.
Build
your
mother
up
with
nourishing
food.
______________________________
艰苦的工作条件能磨练人的性格。
______________________________________________________
老师的话增强了我的自信心。
______________________________________________________
2.
Many
of
these
chemicals
can
lead
to
cancer
or
other
illnesses.
★
lead
to
=
cause,
result
in
导致（某种）结果；造成
e.g.
Hard
work
may
lead
to
success.
苦干可以导致成功。
Eating
too
much
sugar
can
lead
to
health
problems,
especially
diabetes.
食用过多的糖会引起健康问题，尤其是糖尿病。
Ex.
过量的工作和过少的休息会引起疾病。
_______________________________________________________
★小结“to”是介词的短语：
期盼
________________________
提到，谈到
________________________
坚持
________________________
注意
________________________
献身于
________________________
反对
_________________________
习惯于
_________________________
3.
Many
customers
are
beginning
to
turn
to
organic
farming.
★
turn
to
sb.
(for
help)
求(助)于某人……
e.
g.
We
can
turn
to
him
for
help.
我们可以向他求助。
I
tried
to
stand
on
my
own
two
feet
rather
than
turned
to
my
parents.
【翻译】_______________________________________________________
常与turn
搭配的相关短语：
turn
on
________________
turn
off
________________
turn
down
________________
turn
up
________________
turn
against
sb./sth.
___________________
turn
out
to
be
________________
turn
into
sth.
________________
turn
in
________________
turn
back
________________
turn
over________________
4.
They
focus
on
keeping
their
soil
rich
and
free
of
disease.
focus
vt.
使集中；使聚焦
n.
焦点,
焦距,
中心
★
focus
on----
pay
particular
attention
to
集中（注意力、精力）于……
e.g.
应该把注意力集中在你的工作上。You
_______________________
your
work.
★
focus
one's
attention/mind
on
把注意力/心思集中于……
【英汉互译】
1）He
always
wants
to
be
the
focus
of
attention.
____________________________________________________
2）读书时，他集中心思于功课上。
____________________________________________________________
5.
This
also
keeps
the
air,
soil,
water
and
crops
free
from
chemicals.
★
keep…
free
from
/of
=
protect…
from使……免受(影响,
伤害等)
e.g.
健康饮食和锻炼使你远离感冒。
Healthy
diet
and
good
exercise
___________________________
【拓展】英汉互译
1)
keep…
from:
隐瞒,
不把……告诉
(某人)
阻止,
避免”
a.
He
won’t
be
able
to
keep
the
truth
from
his
father.
_______________________________________________________
b.
你不能让他做那件事。
_______________________________________________________
2)
free…
from:
使解除,
使摆脱
他们的目标是让学生从太多的家庭作业中摆脱出来。
They
aim
to
_____________________________________________
3)
be
free
of
sb/sth:
摆脱某人/某物
我终于不用做那个令人枯燥的工作了。
________________________________________________________
Homework:
Finish
the
exercises
on
Page
12.
【学后反思】
____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
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