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Unit 13 We
’
re trying
to save the earth!
重点单词：
Littler,
bottom,
fisherman,
coal,
ugly,
advantage,
cost,
wooden,
plastic,
takeaway,
cruel,
harmful,
industry,
law,
scientific,
afford,
reusable,
recycle,
gate,
bottle,
president,work, metal
重点短语
:
be full of
充满
close down
关闭
play a part in
扮演角色
clean up
打扫卫生
cut down
减少
instead of
代替
make a
difference
起作用，有影响
used to
过去常
……
lead to
通往
……
hear of
听说
be harmful to
…
对
……
有害
the food chain
食物链
at the top of
在
……
顶部或顶端
turn off
关掉
take part in
参加
pay for
付费；付出代价
take
action
采取行动
throw
away
扔掉；抛弃
put
sth. to good use
好好利用某物
pull…down
拆下；摧毁
turn upside down
上下颠倒；倒转
set up
建起，成立
bring sb.
Back to
使想起
be
known for
因
……
而闻名
重点句式：
1.
It used to be
so clean.
它过去是那么干净。
2.
Everyone in
this town should play a part in cleaning it up.
我们镇上的每个人都应该尽一份力把这条河清理干净。
3.
The air has
become really polluted around here.
这附近的空气被严重污染了。
4.
To cut down
air pollution, we should take the bus or subway
instead of driving.
为了减少空气污染，
我们应该乘公汽或地铁，而不要开车。
5.
It doesn’t
cost anything.
它不耗费任何东西。
6.
But in fact,
around 70 millon sharks are caught and traded in
this industry every
year.
但事实上，每年大约七千万条鲨鱼被抓来用作商业交易。
7.
The numbers of
some kinds of sharks have fallen by over 90
percent in the last 20
to 30 years.
有些种类的鲨鱼数量在过去的二三十年里，下降了百分之九十
以上。
8.
So far, no scientific studies have
shown that shark fins are good for health, so why
eat them?
到目前为止，没有科学研究证明显示鱼翅对健康有益，
所以为什么要吃呢？
9.
Recycling
paper is really easy.
回收再利用纸很容易。
it’s
hard to stop riding in cars.
但是停止开小汽车是很难的。
shouldn’t use paper napkins .
我们不该用餐巾纸。
off
the lights when you leave a room.
当你离开房间时关掉灯。
you
ever thought about how these things can actually
be put to good use
？
你曾经考虑过怎样能充分利用这些东西吗？
isn’t the only one who is good at
recycling.
艾米并不是唯一善于回收利用的人
has been doing this for a few years now.
她做这事已经有好几年了。
only can the art bring happiness to
others
，
but it also shows
that even cold
，
hard iron can
be brought back to life with a little creativity.
艺术不仅能带给别人快乐，
而且也说明了只需要一点创造力，<
/p>
即使是冰冷、
坚硬
的铁也可以产生活力。
巧记歌诀：
1.
“花费”用法口诀
花费四词各家聚，认准人物谁主语；
in
，
on
就跟
spend
去，
< br>for
在
pay
后不客气；
cost
物前人后移，
It
takes…to do
在一起。
1.
被动语态
宾变主，主变宾，
by
短语后面跟，
谓
语动词变被动，
be
后“过分”来使用。
巩固提升：
一、单项填空
(
)1.I don't think you've
been to Disneyland,
________
？
A
．
aren't you
B
．
haven't you
C
．
do you
D
．
have you
(
) villager built the bridge
________stones last year.
A
．
out of
B
．
out
C
．
to
D
．
for
(
)
brother
watched
the
football
match
instead
of
________
his
homework.
A
．
doing
B
．
do
C
．
did
D
．
does
(
)4.
—
Do you know
the movie
Harry Potter
?
—
Yes.I________ it 's funny.
A
．
saw
B
．
see
C
．
have seen
D
．
will see
(
) natural protection areas
should ________ in the future.
A
．
set up
B
．
to set up
C
．
be set up
D
．
setting up
(
)6.
—
Do you like
playing computer games?
—
No, but I ________.
A
．
used to
B
．
didn't
C
．
do
D
．
don't
(
)7.I have
never________ the strange animal before.
A
．
heard from
B
．
listened
C
．
listened to
of
(
)8.
—
Miss Liu,
when did you come here?
—
In
2012.I________ here for two years.
A
．
have been to
B
．
have gone to
C
．
have come
D
．
have been
(
) of food and water________
to Ya'an, Sichuan Province immediately
after the earthquake happened.
A
．
were sent
B
．
are sent
C
．
send
D
．
sent
(
) children were hungry and
the salad was quickly________ up.
A
．
eating
B
．
ate
C
．
eaten
D
．
eat
(
),
so
many
passengers________
with
their
smart
phones on
the
underground.
A
．
played
B
．
will play
C
．
are playing
D
．
have played
(
) changes________ in
Daqing since the 1990s.
A
．
took place
B
．
were taken
place
C
．
have
taken place
D
．
have been taken
place
(
)13.
—
How much
does the car________
？
—
Oh, that's not too 's only
100,000
yuan
.
A
．
spend
B
．
cost
C
．
take
D
．
pay
(
)14.
—
Have
you________ the school sports meeting?
—
Yes, I have.
A
．
take part
B
．
taken part
C
．
taken part in
D
．
took part in
(
)15.
—
What________
I do?
—
You'll________ study
from now on if you want to go to college.
A
．
can; may
B
．
should; can
C
．
should; have to
D
．
may; could
(
)16.________ he ________ on
well with his friends this term?
A
．
Did; get
B
．
Does; get
C
．
is; gotten
D
．
Is; getting
(
)ers ________ process
difficult problems very quickly.
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