Unit 13 We’re trying to save the earth!知识梳理与练习（含答案）

Unit
13
We’re
trying
to
save
the
earth!
1.
掌握重点单词/
词组
2.
掌握重点句型
3.
掌握本单元语法内容
Unit
13
We’re
trying
to
save
the
earth!
Period
1
Section
A（1a-2d）
必背单词
1.
litter
v.
乱扔
n.
垃圾;
废弃物→（近义词）
rubbish
→
drop
litter
乱扔垃圾
2.
bottom
n.
底部;
最下部→（反义词）top
n.
顶部；最上部→
at
the
bottom
of
在……底部
3.
fisherman
n.
渔民；钓鱼的人→（复数）fishermen
4.
coal
n.
煤；煤块
5.
ugly
adj.
丑陋的；难看的
6.
advantage
n.
优点；有利条件→（反义词）disadvantage
n.
缺点；劣势；不利条件
7.
cost
v.
花费n.
花费；价钱→（过去式及过去分词）cost,
cost
8.
wooden
adj.
木制的；木头的→（名词）wood
木头
9.
plastic
adj.
塑料的
n.
塑料；塑胶
10.
takeaway
n.
外卖食物
11.
bin
n.
垃圾箱
必背短语
12.
be
full
of
充满
13.
throw…into…
把……扔入……里
14.
used
to
过去常常
15.
play
a
part
in
积极参与
16.
cut
down
削减；砍倒
17.
instead
of
代替；而不是
18.
make
a
difference
有影响
19.
lead
to
导致，引导
必背句子
20.
To
cut
down
air
pollution,
we
should
take
the
bus
or
subway
instead
of
driving.
为了减少空气污染，我们应该乘公共汽车或地铁代替开车。
21.
It
doesn’t
cost
anything.
它不耗费任何东西。
Period
2
Section
A（3a-3b）
必背单词
1.
cruel
adj.
残忍的，残酷的
2.
harmful
adj.
有害的→
harm
n.
伤害；损害→
be
harmful
to
对……有害
3.
industry
n.
工业；行业
4.
law
n.
法律；法规→
lawyer
n.
律师
5.
scientific
adj.
科学上的；科学的→
science
n.
科学→
scientist
n.
科学家
6.
shark
n.
鲨鱼
7.
fin
n.（鱼）鳍
8.
chain
n.
链子；链条
9.
ecosystem
n.
生态系统
必背短语
10.
hear
of
听说
11.
cut
off
砍掉；割掉
12.
not
only…but
also…
不但……而且……
13.
the
number
of…
……的数量
14.
so
far
到目前为止
15.
at
the
top
of
在……顶端或顶部
必背句子
16.
This
is
not
only
cruel,
but
also
harmful
to
the
environment.
这不但残忍，而且对环境有害。
Period
3
Section
A（Grammar
Focus-4c）
必背单词
1.
afford
v.
承担得起；买得起→
afford
to
do
sth.
承担得起做某事
2.
reusable
adj.
可重复使用的；可再次使用的
3.
transportation
n.
运输业；交通运输
必背短语
4.
take
part
in
参加
5.
turn
off
关掉
6.
pay
for
付费；付出代价
7.
take
action
采取行动
必背句子
8.
It
was
considered
the
biggest
clean-up
project
this
city
has
ever
had.
它被认为是这个城市曾经有过的最大的清洁工程。
Period
4
Section
B（1a-1e）
必背单词
1.
recycle
v.
回收利用，再利用→
recycling（现在分词）→
cycle
v.
循环
2.
napkin
n.
餐巾；餐巾纸
必背句子
3.
Recycling
paper
is
really
easy.
回收再利用纸很容易。
4.
But
it’s
hard
to
stop
riding
in
cars.
但是停止开小汽车是很难的。
Period
5
Section
B（2a-2e）
必背单词
1.
gate
n.
大门
2.
bottle
n.
瓶子
3.
president
n.
主席，总统
4.
work
n.
作品→
work
v.
工作
5.
metal
n.
金属
6.
inspiration
n.
灵感；鼓舞人心的人（或事物）
7.
iron
n.
铁
8.
creativity
n.
创造力；独创性
必背短语
9.
throw
away
扔掉；抛弃
10.
put
sth.
to
good
use
好好利用某物
11.
pull…down
拆下；摧毁
12.
bring
back
恢复，使想起，归还
13.
upside
down
上下颠倒；倒转
必背句子
14.
Amy
isn’t
the
only
one
who
is
good
at
recycling.
埃米并不是唯一一个善于回收利用的人。
15.
She
has
been
doing
this
for
a
few
years
now.
她做这事距今已经有好几年了。
16.
Not
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，即使是冰冷、坚硬的铁也可以产生活力。
Period
6
Section
B（3a-Self
Check）
必背句子
The
air
pollution
is
getting
worse
and
worse.
空气污染正在变得越来越严重。
I.
根据句意及所给汉语提示，写出句中所缺单词。
Don’t
play
a
joke
on
him
about
his
weight
—
it’s
________(残忍的).
You
are
supposed
to
know
the
________(法律)
of
your
own
country.
Can
these
toys
be
________(回收利用)?
These
materials
are
widely
used
in
________(工业).
5.
They
walked
because
they
couldn’t
________(负担得起)
a
taxi.
6.
To
solve
this
problem,
we
need
to
learn
more
________(科学的)
knowledge.
II.
根据句意，从方框中选择恰当的单词填空，有的需要变换形式。
reuse,
shark,
ecosystem,
transportation,
fin
1.
People
need
to
get
out
of
their
cars
and
use
public
________.
2.
We
saw
two
________
in
the
wild
zoo.
They
are
large
and
have
sharp
(尖的)
teeth.
3.
Things
that
are
________
can
be
used
more
than
once.
4.
Do
fish
use
their
________
to
swim?
5.
A(n)
________
is
about
all
the
plants
and
animals
that
live
in
a
specific
(特定的)
area.
III.
根据句意，从方框中选择恰当的单词填空，有的需要变换形式。
napkin,
iron,
creative,
inspire
1.
Mr.
Liu
is
a
writer
with
________.
The
books
he
wrote
are
really
popular.
2.
Poets
and
artists
often
draw
their
________
from
nature.
3.
When
finishing
eating,
the
boy
cleaned
his
mouth
with
a(n)
________.
4.
Have
you
heard
of
the
old
saying
“Strike
(打)
while
the
________
is
hot”?
IV.
根据句意及所给汉语提示，用恰当的短语填空。
1.
One
third
of
boys
in
my
class
________________(参加)
the
running
race
last
week.
2.
Please
________________(关掉)
the
TV.
It’s?
too
noisy.
3.
The
doctor
says
fruit
juice
________________(对……有害)
children’s
teeth.
4.
If
you
don’t
work
hard
now,
you’ll
________________(为……付出代价)
it
later
when
you
fail
your
exams.
5.
They
had
a
picnic
________________(在……顶部)
of
the
hill.
6.
Last
month
they
________________(采取行动)
to
prevent
water
pollution.
7.
Insects
are
fairly
low
on
________________(食物链).
8.
One
of
his
fingers
was
________________(切掉)
in
the
accident.
9.
________________(……的数量)
trees
has
increased
in
the
past
few
years.
10.
Helen
________________(不再)
practices
the
piano.
V.
将下列句子翻译成英语。
1.
张丽现在在图书馆看书。
____________________________________________
2.
这条街道过去很脏。
____________________________________________
3.
那个国家讲什么语言？
____________________________________________
4.
我以前从来没有乘飞机旅行过。
____________________________________________
5.
他七岁时就会弹吉他。
____________________________________________
答案：
I.
1.
cruel?
2.
laws?
3.
recycled?
4.
industry
5.
afford?
6.
scientific
II.
1.
transportation?
2.
sharks?
3.
reusable?
4.
fins
5.
Ecosystem
III.
1.
creativity?
2.
inspiration?
3.
napkin?
4.
iron
IV.
1.
took
part
in?
2.
turn
off?
3.
is
harmful
to?
4.
pay
for?
5.
at
the
top
of??
6.
took
action
7.
the
food
chain?
8.
cut
off?
9.
The
number
of
10.
no
longer
V.
1.
Zhang
Li
is
reading
in
the
library
now.
2.
This
street
used
to
be
dirty.
3.
What
language
is
spoken
in
that
country?
4.
I
have
never
traveled
by
plane
before.
5.
He
could
play
the
guitar
when
he
was
seven.
Unit
13
Section
A
write
to
...?给……写信
the
bottom
of
the
river?河底
throw
litter
into
the
river?往河里扔垃圾
clean
up
...?把……打扫干净
land
/
air
/
noise
/
water
/
waste
pollution土地?/?空气?/?噪音?/?水?/?垃圾污染
turn
...
into
...?把……变成……
cut
down
air
pollution?减少空气污染
instead
of?代替
be
good
for
...?对……有好处
take
away
food?外卖食品
keep
public
places
clean
and
beautiful?保持公共场所干净美观
make
a
difference?影响；有作用
lead
to?带来；导致
hear
of?听说
a
bowl
of
shark
fin
soup?一碗鱼翅羹
cut
off?切掉
be
harmful
to
...?对……有害
no
longer?不再
at
the
top
of
...?在……顶部或顶端
the
food
chain?食物链
environmental
protection
group?环境保护组织
develop
laws?制定法律
so
far?到目前为止
scientific
studies?科学研究
take
part
in?参加
help
out?帮助摆脱(困境)
take
action?采取行动
begin
with
...?以……开始
save
electricity?省电
turn
off
the
lights
/
shower?关灯?/?淋浴器
pay
for?付费；付出代价
add
up?加起来
use
public
transportation?使用公共交通工具
Section
B
stop
doing
sth.?停止做某事
ride
in
cars?乘小汽车
paper
napkins?餐巾纸
throw
away?扔掉；抛弃
put
sth.
to
good
use?好好利用某物
have
a
creative
mind?拥有创意的头脑
build
...
out
of
...?用……建造……
pull
...
down?拆下；摧毁
upside
down?上下颠倒；倒转
in
front
of
...?在……前面
win
a
prize?获奖
open
a
small
shop?开一家小店
set
up
a
website?建网站
sell
...
online?在网上出售……
use
...
to
do
sth.?用……做某事
set
up
a
small
business?经营小生意
be
known
for
doing
sth.?因做某事而闻名
look
like?看起来像
the
importance
of
environmental
protection环境保护的重要性
bring
back?恢复；使想起；归还
I.用所给词的适当形式填空。
1.
The
old
man
used
_____
(be)
a
teacher.
2.
We
should
____
(clean)
the
room
every
day.
3.
Look!
Tom
____
(sleep)
in
his
room.
4.
Lots
of
trees
____
(plant)
on
the
hill
every
year.
5.
He
_____
(live)
here
for
20
years.
II.句型转换。
1.They
hope
they
can
visit
the
Great
Wall
one
day.
(改为同义句)
They
hope
______
_______
the
Great
Wall
one
day.
2.
She
can
speak
both
English
and
French.
(改为同义句)
She
can
speak
______
_______
English
________
_______
French.
3.
Lily
used
to
play
the
violin.（改为否定句）
Lily
_______
_______
_______
play
the
violin.
4.
My
father
doesn’t
allow
me
to
use
his
computer.
(改为被动语态)
I’m
________
_______
_________
_______
his
computer
by
my
father.
5.
All
my
classmates
left
ten
minutes
ago.
(改为同义句)　　
All
my
classmates
________
_________
______
for
ten
minutes.
答案：
I.1.to
be
2.
clean
3.
is
sleeping
4.
are
planted
5.
has
lived
II.1.
to
visit
2.not
only;
but
also
3.didn’t
use
to
4.not
allowed
to
use
5.have
been
away
巩固提高
I.单项选择
1.
He
likes
watching
the
children
_________
football.
A.
play???
B.
to
play
C.
playing
D.
playsy
2.
Most
of
the
young
people
can
hardly
speak
any
Chinese,
________?
A.
can
he???
B.
can’t
he
C.
can
they???
D.
can’t
they
3.
They
_________
to
Tibet
many
times.
A.
are???
B.
were
?
C.
have
been???
D.
has
been
4.
They
______
a
hit
CD
in
the
last
six
months.
A.
make
B.
made
C.
was
made
D.
have
made
5.
My
friend
from
America
called
me
yesterday.
We
__________
for
hours.
A.chat
??
B.
chatted
C.
have
chatted
??
D.
had
chatted3
4.
–Where
is
Tom?
--He
__________
playing
basketball
on
the
playground.
A.
is
seen
B.
saw
C.
be
seen
D.
was
seen
6.Many
old
houses
around
our
school
will
be
__
down
next
year
and
a
large
green
area
will
appear.
A．thrown
B．pulled
C．broken
D．put
7.The?Olympic?Games?___________every?four?years.?
A.?are?held??
B.?were?held??
C.
are?holding???
D.
will?ho1d?
8.Usually?computers?_____to?search?the?Internet.??
A.?use???
B.?are?using??
C.?are?used????
D.?used
9.It?is?reported?that?more?new?teaching?buildings?_______?in?our?school?in?the
next?term.?
A.?will?be?built?
B.?was?built??
C.?has?built
D.?will?build?
10.Don’t?discuss?the?problems?with?your?partner?unless?you?_________?to?do?so.??
A.?ask?????????
B.?are?asked????
C.?will?ask??????
?
D.?will?be?asked
II.句型转换。
1.
“Don’t
park
your
car
here,”
the
man
told
me.(改为间接引语)21
5
The
man
told
me
________
_______
_____
my
car
here.
2.
Tom
left
Shanghai
two
weeks
ago
because
of
his
new
job.
(改为同义句)
Tom
________
_________
________
from
Shanghai
two
weeks
ago
because
of
his
new
job.
3.
He
has
cleaned
the
room.
(改为被动句)
The
room
_______
________
_________
by
him.
4.
Loud
music
makes
me
want
to
leave.
(改为被动句)
I
_______
_________
___________
want
to
leave
by
loud
music.
5.I
have
already
finished
my
homework.
(改为否定句)
I
________
______
my
homework
_______.
答案：
I.BACAB
ACCDB
II.1.not
to
park
2.
has
been
away
3.has
been
cleaned
4.am
made
to
5.haven’t
finished;
yet