-
Unit 5 A delicate world
1
．
drama
n
．戏剧，戏剧艺术→dramatic
adj.
巨大的；引人注目的；给人印象深刻的
→
dr
amatically
adv.
显著地；戏剧性地
2
．
subsequent
< br>adj.
随后的；
后来的→subsequence <
/p>
n
．
随后发生的事，
后果→
subsequently
adv.
后来，随后
3
．
multiply
v
．
(
使
< br>)
大大增加，
(
使
)
倍增→multiplication
n
．乘；增加
4
．
explode
v
．突然增加；爆炸；突然发生→explosion
n
．爆炸；猛增
5
．
ecology
n
．生态；生态学→ecological
adj.
生态的；生态学的
6
．
compare
v
．比较；对比；比作→
comparison
n
．比较
7
．
apparent
adj.
显而易见的；明白的；清楚的→
apparently
adv.
据说；看来，似乎
8
．
vary
v
．
(
形状等
)
不同；改变→var
ious
adj.
各种各样的→variety
n
．多样性；多
变性→
variation
n
．差异；变化
9
．
secure
adj.
稳固的，可靠的→security
n
．安全
10
．
greet
v
．打招呼→
greeting
n
．问候，招呼
1
．
trap
n
．
(
捕捉动物的
)
陷阱，罗网，夹子；圈套；诡计
v
．
使落入险境；使陷入困境
①
She had set a
trap
for him and he had
walked straight into it.
圈套
②
They were
trapped
in the burning
building.
③
I wondered if it
was an animal caught in a
trap
.
使陷入困境
陷阱
2
．<
/p>
explode
v
．
< br>爆炸；爆破；爆裂；勃然
(
大怒
)
；大发
(
雷霆
)
；突然发生
(
危险
)
；突然
爆发，迸发
(
感情
)
；突然增加
①
There was a huge bang as if
someone had
exploded
a
rocket outside.
爆炸
②
Suddenly Charles
exploded
with rage.
③
The population
explodes
to
40
，
000 during the tourist
season.
突然增加
Words and Phrases
知识要点
1
multiply
v
．
(
使
)
大大增加，
(
使
)
倍增；乘；
(
使
)
繁殖
(
教材
P
50
)
Loose on the
island, they did what rabbits do
best
—
they
multiplied
大发雷霆
rapidly and began eating the native
vegetation and digging holes, which caused soil
erosion.
在岛上自由自在，它
(
兔子
)
们尽其所能——迅速繁殖，
开始吃当地的植被并挖洞，造成
水土流失。
[
例
1]
The children are already learning to
multiply
and divide.
孩子们已经开始学习乘法和除法了。
[
例
2]
Their problems
have
multiplied
since last year.
自去年以来，他们的问题倍增。
[
造句
]
在实验室里繁殖这些细菌是可能的。
It is possible to multiply these
bacteria in the laboratory.
[
知识拓展
]
multiple
adj.
multiple choice
multiplicity
n.
[
即学即练
]
单句语法填空
①
The driver of the crashed
car received multiple(multiply) injuries.
②
We are all amazed at the
multiplicity(multiply) of the nature.
知识要点
2
in turn
轮流，依次；反过来
(
教材
P
50
)
This
in turn
led to more cats hunting the birds.
这反过来又导致更多的猫捕鸟。
[
例
1]
The girls took it
in turn
to wipe down the tables after meals.
女孩子们饭后轮流擦桌子。
[
例
2]
The students were summoned
in turn
to be interviewed.
学生依次被召入进行面试。
[
造句
]
反过来，这些也会影响你的工作效率。
This in turn will also have a negative
impact on your productivity.
[
知识拓展
]
take turns to do sth./in(doing) sth.
It's one's turn to do sth.
take one's turn
by turns
[
即学即练
]
单句语法填空
①
It's your turn to
recite(recite) the passage.
②
We take turns to make /in
making dinner.
多种多样的
多项选择
多种多样
轮流做某事
轮到某人做某事
依次，轮到某人
轮流，依次
＝
We make dinner by
turns(turn)
．
[
名师点津
]
(1)in
turn
表示“轮流；<
/p>
反过来”，
而
in
return
(for)
则表示“作
为
(
对……)的回报”。
(2)by turns
和
take
turns
中的
turn
用复数形式。
知识要点
3
decrease
v
．
(
使
)
减少；
(
使
)
变小
n
．
减少；降低
(
教材
P
51
)
But although
the
virus caused the rabbit population to
decrease
from
130
，
000 to around
10
，
000, it also meant less
food for the cats.
尽管病毒导致兔子数量从
13
万只减少到
1
万只左右，但也
意味着猫的食物减少了。
[
例
1]
This species of birds
is
decreasing
in numbers every year.
这种鸟的数量在逐年减少。
[
例
2]
There has been some
decrease
in military spending this year.
今年的军费开支有所减少。
[
造句
]
人们应减少脂肪的摄入量。
People should decrease the amount of
fat they eat.
[
知识拓展
]
(1)decrease in sth.
decrease
to
decrease by
(2)on
the decrease
(3)increase
v
．
&
n.
[
即学即练
]
单句语法填空
①
A local newspaper remarks
that crime is on the decrease.
②The
traffic accidents in the
city decreased
by 30% last year.
③
The
population of China has increased to about 1.4
billion.
知识要点
4
trap
vt.
使困住；诱捕；诱骗；坑害
n
．
圈套；陷阱；诡计；夹子
(
教材
P
51
)
In the 1980s,
traps
and dogs were used to
catch the cats.
上世纪
80
年代，人们用陷阱和狗来捕猫。
[
例
1]
We became
trapped
by the rising floodwater.
我们被上涨的洪水困住了。
[
例
2]
We realized too late that we were
caught like rats in a
trap
.
等我们发觉自己已成瓮中之鳖时已经太晚了。
[
造句
]
我不愿让他以为我是在给他设圈套。
I would hate him to think I'm trying to
trap him.
[
知识拓展
]
(
在某方面
)
降低，减少
减少到
减少了
在减少
增加，提高
(1)be/get trapped in
trap (doing) sth.
被困在……中
使某人陷入……的圈套；使上当
(2)fall into the trap of doing sth.
fall/walk into a trap
(3)set/lay a trap for
[
即学即练
]
单句语法填空
①
The shopkeeper trapped me
into buying(buy) their poor quality milk.
②
Don't fall into the trap of
investing all your money in one place.
③
The old man was trapped in
the burning house at that moment.
知识要点
5
(
教材
P
51
)It
turned out
that they
developed an
immunity to
the
virus,
and their numbers
exploded
once again.
结果他们对病毒产生了免疫力，他们的数量再次激增。
(
1
)
turn
out
结果是；证明是
[
例
1]
Cosgrave's forecast
turned
out
to be quite wrong.
科斯格雷夫的预测最后证明是大错特错。
[
例
2]
Sometimes things don't
turn
out
the way we think they're going to.
有时事情并不像我们认为的那样发展。
[
造句
]
结果发现我认识那个中枪的人。
It
turned out that I knew the person who got shot.
[
知识拓展
]
turn up
出现，到达；开大，提高，增加；找到，发现
turn off
扭转
(
开关、水龙头等
)
，关掉
(
煤气、自来水等
)
turn
on (
扭转开关
)
打开
(
自来水
)
，开
(
煤气、灯、电视等
)
turn in
转身进入；交出
turn to (
向某人
)
求助；注意；翻到(……页
)
turn
down (
扭转形状等
)
调小
(
煤气等
)
，
关小，调小
(
收音机等的声音
)
；拒绝
turn over
翻过来，翻转
[
即学即练
]
单句语法填空
①
The car was turned over and
the driver seriously injured.
②
Be calm and sit tight and
everything will turn out well.
③
Please remember to turn off
all the lights when you leave.
④
She turned down every offer
of help.
掉进……的陷阱
掉进陷阱
为……设圈套