课时作业(十六) Unit
6
Section
Ⅰ Starting
out
&
Understanding
ideas
Ⅰ.阅读理解
A
More
and
more
birds
are
flying
to
settle
in
Qinghai
Lake,
one
of
the
highest
inland
lakes
in
China,
thanks
to
the
protection
efforts
of
the
local
government.
Covering
an
area
of
over
4,000
square
kilometers,
Qinghai
Lake
is
also
the
country's
biggest
salt
lake.
Located
in
Qinghai
Province
of
Northwest
China,
the
lake
is
famous
for
the
two
islands
at
its
northwest
point—Cormorant
Island
and
Egg
Island.
The
two
islands
have
plenty
of
floating
grass
and
various
fish,
offering
rich
food
sources
to
birds.
The
islands
have
become
a
paradise
for
different
kinds
of
groups
of
birds
and
have
been
called
“Bird
Islands”．
Each
March
and
April,
when
ice
and
snow
covering
the
Qinghai?Tibet
Plateau
(高原)
start
to
melt,
over
20
kinds
of
birds
fly
to
the
Bird
Islands
to
lay
eggs.
During
the
months,
flocks
of
birds
cover
the
whole
sky
over
the
islands
and
bird
eggs
can
be
found
everywhere.
Visitors
can
hear
the
singing
of
birds
from
miles
away.
These
have
become
a
world?famous
symbol
of
the
lake.
To
protect
this
paradise
for
birds
and
support
calls
for
ecological
protection,
China
set
up
the
Qinghai
Lake
National
Natural
Reserve
at
the
end
of
1997.
Meanwhile,
the
State
has
pointed
out
that
the
Bird
Islands
and
Spring
Bay
of
Qinghai
Lake
were
central
reserves.
Inspectors
and
conservators
often
patrol
(巡逻)
the
lake,
enriching
local
residents'
knowledge
of
related
laws
and
spreading
knowledge
about
animal
protection
to
visitors.
They
are
making
great
efforts
to
call
on
people
to
love
and
protect
the
birds.
At
the
same
time,
they
have
built
special
fences
around
the
island
area
to
prevent
wolves,
foxes
and
other
carnivorous
animals,
as
well
as
illegal
hunters
from
breaking
up
the
birds'
building
nests,
laying
eggs
and
breeding
(繁殖).
As
a
result,
more
and
more
birds
are
coming
to
the
islands
for
sheltering
and
breeding.
1．Why
are
more
and
more
birds
coming
to
the
biggest
salt
lake
in
Northwest
China?
A．Because
it
is
getting
warmer
and
warmer.
B．Because
it
is
being
reformed.
C．Because
the
environment
is
getting
more
agreeable
for
them
to
live
in.
D．Because
the
people
there
are
becoming
richer
and
richer.
2．What
do
the
birds
feed
on?
A．Floating
fish
and
various
grass.
B．Grass
growing
in
the
water
and
different
kinds
of
fish.
C．Salt
water
and
plenty
of
grains.
D．Corn
from
the
local
farmers.
3．According
to
the
passage,
we
can
infer
that
________.
A．over
20
kinds
of
birds
come
to
the
Bird
Islands
before
March
B．flocks
of
birds
fly
up
to
the
whole
sky
over
the
islands
to
lay
eggs
C．visitors
can
see
the
birds
from
miles
away
D．the
government
has
taken
many
measures
to
protect
the
district
4．This
passage
is
most
probably
taken
from
________.
A．a
newspaper
B．a
document
C．a
storybook
D．a
science
book
B
Walk
through
the
Amazon
rainforest
today
and
you
will
find
it
steamy,
warm,
damp
and
thick.
But
if
you
had
been
there
around
15,000
years
ago,
during
the
last
ice
age,
would
it
have
been
the
same?
For
more
than
30
years,
scientists
have
been
arguing
about
how
rainforests
might
have
reacted
to
the
cold,
dry
climate
of
the
ice
ages,
but
till
now,
no
one
has
reached
a
satisfying
answer.
Rainforests
like
the
Amazon
are
important
for
mopping
up
CO2
from
the
atmosphere
and
helping
to
solve
global
warming.
Currently
the
trees
in
the
Amazon
take
in
around
500
million
tons
of
CO2
each
year,
equal
to
the
total
amount
of
CO2
given
off
in
the
UK
each
year.
But
how
will
the
Amazon
react
to
the
future
climate
change?
If
it
gets
drier,
will
it
survive
and
continue
to
draw
down
CO2?
Scientists
hope
that
they
will
be
able
to
learn
in
advance
how
the
rainforest
will
manage
in
the
future
by
understanding
how
rainforests
reacted
to
climate
change
in
the
past.
Unfortunately,
collecting
information
is
incredibly
difficult.
To
study
the
past
climate,
scientists
need
to
look
at
fossilized
pollen
(花粉)
kept
in
lake
mud.
Going
back
to
the
last
ice
age
means
drilling
down
into
lake
sediment
(沉积物),
which
requires
specialized
equipment
and
heavy
machinery.
There
are
very
few
roads
and
paths,
or
places
to
land
helicopters
and
aeroplanes.
Rivers
tend
to
be
the
easiest
way
to
enter
the
forest,
but
this
still
leaves
vast
areas
between
the
rivers
completely
unsampled
(未取样).
So
far,
only
a
handful
of
cores
have
been
drilled
that
go
back
to
the
last
ice
age
and
none
of
them
provide
enough
information
to
prove
how
the
Amazon
forest
reacted
to
climate
change.
5．How
do
scientists
study
the
past
climate
change?
A．By
predicting
the
climate
change
in
the
future.
B．By
drilling
down
deep
into
land
sediment.
C．By
taking
samples
from
rivers
in
the
Amazon.
D．By
analyzing
fossilized
pollen
in
lake
mud.
6．What
is
needed
for
drilling
down
into
lake
sediment?
A．The
latest
helicopter.
B．The
special
equipment.
C．The
light
machinery.
D．The
narrow
path.
7．What
is
the
purpose
of
writing
the
passage?
A．To
attract
more
people's
attention
to
CO2.
B．To
call
on
people
to
protect
rainforests.
C．To
inform
people
of
how
scientists
work
on
rainforests.
D．To
warn
people
to
stay
away
from
the
danger
of
rainforests.
8．The
best
title
for
the
text
may
be
________.
A．Mystery
of
the
Rainforest
B．Climates
of
the
Rainforest
C．The
History
of
the
Rainforest
D．Changes
of
the
Rainforest
Ⅱ.完形填空
Last
night
was
the
last
game
for
my
eight?year?old
son's
soccer
team.
It
was
the
final
quarter.
The
score
was
two
to
one,
my
son's
team
in
the
__1__.Parents
encircled
the
field,
offering
__2__.
With
less
than
ten
seconds
remaining,
the
ball
__3__
in
front
of
my
son's
teammate,
Mikey
O'Donnel.
With
__4__
of
“Kick
it！”
echoing
(回响)
across
the
field,
Mikey
gave
it
everything
he
had.
All
round
me
the
crowd
__5__.
O'Donnel
had
scored!
Then
there
was
silence.
Mikey
had
scored
all
right,
but
in
the
__6__
goal,
ending
the
game
in
a
tie.
For
a
moment
there
was
total
silence.
You
see,
Mikey
has
Down's
syndrome
(唐氏综合征)
and
for
him
there
is
no
such
thing
as
a
wrong
goal.
All
goals
were
__7__
by
a
joyous
hug
from
Mikey.
He
had
even
run
to
hug
the
__8__
players
when
they
scored.
The
__9__
was
finally
broken
when
Mikey,
his
face
filled
with
__10__，
grabbed
my
son,
hugged
him
and
__11__，
“I
scored!
I
scored!
Everybody
won!
Everybody
won！”
For
a
moment
I
held
my
breath,
not
sure
how
my
son
would
__12__.
I
need
not
have
worried.
I
watched,
through
tears,
as
my
son
__13__
his
hand
up
in
the
classic
high?five
salute
and
started
chanting,
“Way
to
go
Mikey!
Way
to
go
Mikey！”
Within
moments
both
teams
__14__
Mikey,
joining
in
the
chant
and
__15__
him
on
his
goal.
Later
that
night,
when
my
daughter
asked
who
had
won,
I
smiled
as
I
replied,
“It
was
a
tie.
Everybody
won.”
1．A.lead
B．front
C．end
D．advance
2．A.favor
B．assistance
C．encouragement
D．satisfaction
3．A.stopped
B．rolled
C．arrived
D．pulled
4．A.orders
B．wishes
C．thoughts
D．shouts
5．A.disappointed
B．erupted
C．terrified
D．charmed
6．A.successful
B．different
C．wrong
D．standard
7．A.completed
B．considered
C．supported
D．celebrated
8．A.exciting
B．experienced
C．opposing
D．relaxed
9．A.record
B．silence
C．surprise
D．anger
10．A.shame
B．sadness
C．joy
D．tear
11．A.yelled
B．announced
C．proved
D．promised
12．A.decide
B．shock
C．regret
D．react
13．A.put
B．held
C．took
D．threw
14．A.defeated
B．recognised
C．searched
D．surrounded
15．A.punishing
B．blaming
C．criticizing
D．congratulating
课时作业(十六)
Ⅰ.阅读理解
A
【语篇解读】 本文讲述了越来越多的鸟来到青海湖，当地政府的保护措施使这个地方成为鸟类的天堂。政府向人们普及鸟类保护法，号召人们保护鸟类。
1．答案与解析：C 推理判断题。根据第一段中的“More
and
more
birds
are
flying
to
settle
in
Qinghai
Lake,
one
of
the
highest
inland
lakes
in
China,
thanks
to
the
protection
efforts
of
the
local
government.”以及下文可知，越来越多的鸟飞到青海湖栖息一方面是由于当地政府对环境保护所做出的努力，另一方面是因为那里有充足的食物来源，也就是说那里的环境越来越适合鸟类生存。
2．答案与解析：B 细节理解题。根据第二段中的“The
two
islands
have
plenty
of
floating
grass
and
various
fish,
offering
rich
food
sources
to
birds.”可知，两个岛上有丰富的水草与各种鱼类，为鸟类提供了丰富的食物。
3．答案与解析：D 推理判断题。根据第四、五段及第一段中的“thanks
to
the
protection
efforts
of
the
local
government”可知，政府已经采取了很多措施保护这片区域。
4．答案与解析：A 推理判断题。通读全文可知，本文主要讲的是由于当地政府对环境的保护，越来越多的鸟来到青海湖。这篇文章很有可能出现在报纸上，是一篇新闻报道。
B
【语篇解读】 文章主要介绍了科学家为研究亚马孙雨林将如何应对将来的气候变化而对过去的雨林是如何度过冰河时期进行取样研究。
5．答案与解析：D 细节理解题。根据文中第三段第二句To
study
the
past
climate,
scientists
need
to
look
at
fossilized
pollen
(花粉)
kept
in
lake
mud.可知，要研究过去的气候，科学家需要看保存在湖泥中的花粉化石。故选D。
6．答案与解析：B 细节理解题。根据文中第三段第三句Going
back
to
the
last
ice
age
means
drilling
down
into
lake
sediment
(沉积物),
which
requires
specialized
equipment
and
heavy
machinery.可知，钻到湖泊沉积物需要专门的设备和重型机械。C选项错在light。故选B。
7．答案与解析：C 推理判断题。这是一篇科普文章，通常写作目的是提供信息。A选项是吸引更多人对二氧化碳的注意，和文章无关；B选项是号召人们保护雨林，此文不是强调保护雨林；D选项是警告人们远离雨林的危险，文章没有讲到雨林的危险。故选C。
8．答案与解析：A 主旨大意题。根据第一段后两句But
if
you
had
been
there
around
15,000
years
ago,
during
the
last
ice
age,
would
it
have
been
the
same?
For
more
than
30
years,
scientists
have
been
arguing
about
how
rainforests
might
have
reacted
to
the
cold,
dry
climate
of
the
ice
ages,
but
till
now,
no
one
has
reached
a
satisfying
answer.可知，人们对于雨林怎样应对气候变化一直没有满意的答案，二、三段讲述的是科学家进行该研究的价值和具体实践及遇到的困难，所有这些都是为了揭开原因，所以标题为“雨林的神秘”是最恰当的。B、C、D选项都仅仅是文章提到的部分信息。故选A。
Ⅱ.完形填空
【语篇解读】 本文是一篇记叙文。文章讲述了在一场足球比赛中，虽然患有先天智力障碍的Mikey并没有踢对球门，但是他却让所有的人都赢了。队友们愿意接受他，这是对一个人的理解和尊重。
1．答案与解析：A 比分是2比1，“我”儿子所在的队领先。lead
领先；front
前面(位置)；end
结束，后面；advance
预先。
2．答案与解析：C 父母们都围在场地周围，不时地加油助威。encouragement
鼓励，鼓舞；favor
帮助；assistance
援助；satisfaction
满意。
3．答案与解析：B 离比赛结束不到十秒时，球滚到了儿子的队友——Mikey
O'Donnel的面前。roll
滚动；stop
停止；arrive
到达；pull
拖拽。
4．答案与解析：D “射门”的呼喊声传遍了全场。shout
喊叫声；order
顺序；wish
希望；thought
想法。
5．答案与解析：B Mikey进了球，于是周围的人们沸腾起来。erupt
沸腾；disappoint
失望；terrify
恐惧；charm
吸引。
6．答案与解析：C Mikey确实射中了，但射错了球门，以平局结束了比赛。wrong
错误的；successful
成功的；different
不同的：standard
标准的。
7．答案与解析：D 对所有进球的队员，Mikey都会以欢快的拥抱表示祝贺。celebrate
庆祝；complete
完成；consider
考虑；support
支持。
8．答案与解析：C 对手进球时他甚至拥抱过对方队员。opposing
players
对手。exciting
令人兴奋的；experienced
有经验的；relaxed
放松的。
9．答案与解析：B 最后，沉默被打破了。silence
沉默；record
记录；surprise
惊讶：anger
生气。
10．答案与解析：C Mikey进了球，感到很高兴。joy
高兴；shame
羞愧；sadness
悲伤；tear
眼泪。
11．答案与解析：A Mikey满脸欢喜，抓住“我”儿子，拥抱着他，高声叫道：“我进球了！我进球了！大家都赢了！大家都赢了！”yell
大叫；announce
宣布；prove
证明；promise
承诺。
12．答案与解析：D “我”不知道儿子会作何反应。react
反应；decide
决定；shock
震惊；regret
遗憾。
13．答案与解析：A “我”看到儿子举起手，用传统的方式与Mikey击掌庆贺。put
one's
hand
up举起某人的手。根据常识可知应该是把手举起来击掌庆贺。
14．答案与解析：D 转瞬之间，双方队员都朝Mikey围过去。surround
围；defeat
打败；recognise
认清；search
搜寻。
15．答案与解析：D 队员们开始欢唱，祝贺他进了球。congratulate
祝贺；punish
惩罚；blame
责备；criticize
批评。(共15张PPT)
Section
Ⅳ Writing
如何写招聘广告课时作业(十七) Unit
6
Section
Ⅱ Discovering
Useful
Structures
Ⅰ.阅读理解
A
Blood
Falls
are
at
the
tip
of
a
giant
glacier
in
Antarctica.
As
its
name
suggests,
the
icy
face
of
Blood
Falls
is
red—but
not
from
blood.
Instead,
the
water
gets
its
color
because
it's
rich
in
iron.
When
the
water
comes
out
from
its
underground
beginnings,
the
iron
is
exposed
to
the
air
and
quickly
forms
the
red
rust.
A
scientist
recently
studied
the
rusty
water
and
came
up
with
some
surprising
results.
The
water
that
feeds
Blood
Falls
probably
comes
from
a
salty
underground
lake.
It's
home
to
microbes
that
surprisingly
don't
need
oxygen
to
survive.
“This
salty
lake
is
a
sort
of
time
capsule，”
said
Jill
Mikucki,
who
led
the
study.
When
she
and
her
team
studied
the
water,
they
found
no
oxygen
but
lots
of
iron.
They
suspected
that
the
underwater
lake
formed
when
a
giant
glacier,
now
1,300
feet
thick,
moved
over
the
salty
lake
at
least
1.5
million
years
ago.
This
trapped
the
water
and
everything
in
it
in
an
oxygen?free
environment.
Unlike
human
beings
and
most
other
forms
of
life,
the
microbes
from
Blood
Falls
don't
need
oxygen
to
live.
Instead,
they
are
able
to
exist
using
the
iron.
The
study
gives
us
more
information
about
our
own
planet.
It
may
be
useful
in
other
scientific
areas—like
the
search
for
life
on
other
planets.
If
scientists
find
living
things
on
the
Earth
that
live
on
iron
instead
of
oxygen,
researchers
might
have
a
better
idea
of
where
to
look
for
life
elsewhere.
1．For
what
do
Blood
Falls
get
the
name?
A．They
are
rich
in
oxygen.
B．They
reflect
their
red
surroundings.
C．Their
water
rich
in
iron
is
red.
D．They
are
composed
of
blood.
2．What
probably
made
Jill
Mikucki
most
surprised?
A．The
discovery
of
a
salty
underground
lake.
B．Microbes
that
don't
need
oxygen
to
survive.
C．The
movement
of
a
giant
glacier.
D．The
color
of
Blood
Falls.
3．Why
did
Jill
Mikucki
believe
this
salty
lake
is
a
sort
of
time
capsule?
A．Because
it
was
formed
by
a
giant
glacier.
B．Because
it
could
be
used
to
study
life
on
other
planets.
C．Because
it
was
home
to
special
microbes.
D．Because
it
was
formed
more
than
1.5
million
years
ago.
4．What
do
the
microbes
from
Blood
Falls
live
on?
A．Air.
B．Water.
C．Iron.
D．Oxygen.
B
“You
can
use
me
as
a
last
resort
(选择),
and
if
nobody
else
volunteers,
then
I
will
do
it.”
This
was
an
actual
reply
from
a
parent
after
I
put
out
a
request
for
volunteers
for
my
kids'
lacrosse
(长曲棍球)
club.
I
guess
that
there's
probably
some
demanding
work
schedule,
or
social
anxiety
around
stepping
up
to
help
for
an
unknown
sport.
She
may
just
need
a
little
persuading.
So
I
try
again
and
tug_at_the_heartstrings.
I
mention
the
single
parent
with
four
kids
running
the
show
and
I
talk
about
the
dad
coaching
a
team
that
his
kids
aren't
even
on...At
this
point
the
unwilling
parent
speaks
up,
“Alright.
Yes,
I'll
do
it.”
I'm
secretly
relieved
because
I
know
there's
real
power
in
sharing
volunteer
responsibilities
among
many.
The
unwilling
parent
organizes
the
meal
schedule,
sends
out
emails,
and
collects
money
for
end?of?season
gifts.
Somewhere
along
the
way,
the
same
parent
ends
up
becoming
an
invaluable
member
of
the
team.
The
coach
is
able
to
focus
on
the
kids
while
the
other
parents
are
relieved
to
be
off
the
hook
for
another
season.
Handing
out
sliced
oranges
to
bloodthirsty
kids
can
be
as
exciting
as
watching
your
own
kid
score
a
goal.
Still,
most
of
us
volunteers
breathe
a
sigh
of
relief
when
the
season
comes
to
a
close.
That
relief
is
coupled
with
a
deep
understanding
of
why
the
same
people
keep
coming
back
for
more：Connecting
to
the
community
(社区)
as
you
freely
give
your
time,
money,
skills,
or
services
provides
a
real
joy.
Volunteering
just
feels
so
good.
In
that
sense,
I'm
pretty
sure
volunteering
is
more
of
a
selfish
act
than
I'd
freely
like
to
admit.
However,
if
others
benefit
in
the
process,
and
I
get
some
reward
too,
does
it
really
matter
where
my
motivation
lies?
5．What
can
we
infer
about
the
parent
from
her
reply
in
paragraph
1?
A．She
knows
little
about
the
club.
B．She
isn't
good
at
sports.
C．She
just
doesn't
want
to
volunteer.
D．She's
unable
to
meet
her
schedule.
6．What
does
the
underlined
phrase
“tug
at
the
heartstrings”
in
paragraph
2
mean?
A．Encourage
teamwork.
B．Appeal
to
feelings.
C．Promote
good
deeds.
D．Provide
advice.
7．What
can
we
learn
about
the
parent
from
paragraph
3?
A．She
gets
interested
in
lacrosse.
B．She
is
proud
of
her
kids.
C．She'll
work
for
another
season.
D．She
becomes
a
good
helper.
8．Why
does
the
author
like
doing
volunteer
work?
A．It
gives
her
a
sense
of
duty.
B．It
makes
her
very
happy.
C．It
enables
her
to
work
hard.
D．It
brings
her
material
rewards.
Ⅱ.七选五
Sleeping
in
class
prevents
you
from
paying
attention
to
the
teacher
as
well
as
stops
you
from
learning
about
the
material
that
is
being
taught.
__1__
It
is
important
to
determine
why
you
are
falling
asleep
in
class
and
try
to
change
the
situation
so
that
you
are
able
to
stay
awake
and
pass
all
of
your
classes.
There
are
a
number
of
different
tricks
you
can
use
to
try
to
stay
awake.
Get
a
full
night's
sleep
on
school
nights.
It
is
reported
that
teenagers
may
need
more
sleep
than
adults.
__2__
This
is
a
key
part
to
staying
awake
in
class.
If
you
are
not
tired,
you
are
unlikely
to
fall
asleep.
Eat
a
healthy
breakfast
full
of
nutritious
food.
__3__
If
you
get
hungry
or
tired
in
the
middle
of
the
day,
try
eating
a
healthy
snack
like
a
piece
of
fruit
or
some
biscuits.
__4__
If
you
are
actively
engaged
in
the
information
the
teacher
is
presenting,
you
are
less
likely
to
doze
off.
Taking
notes,
asking
questions
and
otherwise
getting
involved
in
classroom
activities
and
discussions
will
make
you
far
less
likely
to
doze
off.
Contact
your
doctor
in
order
to
rule
out
medical
conditions
that
can
cause
you
to
fall
asleep.
__5__
Prescription
drugs
may
also
cause
sleepiness
as
a
side
effect,
so
discuss
any
medicine
you
are
taking
with
your
doctor.
A．Get
involved
during
class.
B．Early
to
bed,
early
to
rise.
C．Sleeping
more
helps
a
lot
in
your
study.
D．It
can
also
get
you
in
trouble
with
your
teachers.
E．It
can
provide
you
with
enough
protein
to
fuel
your
body.
F．Go
to
bed
earlier
and
make
sure
you
get
as
many
hours
of
sleep
as
your
body
needs.
G．If
you
have
a
medical
condition
that
is
causing
you
to
fall
asleep
in
class,
it
will
need
to
be
treated
by
a
professional.
课时作业(十七)
Ⅰ.阅读理解
A
【语篇解读】 本文是一篇说明文。科学家在南极洲发现了神奇的、富含铁元素的“血瀑布”，此次发现提供给我们许多有关地球的信息，这对地球生命的研究也许具有划时代的意义。
1．答案与解析：C 推理判断题。由第一段中的Instead,
the
water
gets
its
color
because
it's
rich
in
iron.
When
the
water
comes
out
from
its
underground
beginnings,
the
iron
is
exposed
to
the
air
and
quickly
forms
the
red
rust.可以判断，“血瀑布”之所以有此名是因为水里富含铁元素，而铁暴露在空气中，很快就会形成红色的铁锈。
2．答案与解析：B 细节理解题。由第二段中的．..surprisingly
don't
need
oxygen
to
survive.并结合第三段可知，这些微生物不需要氧气就能生存，这一点令她感到惊奇。
3．答案与解析：D 推理判断题。由第三段中的They
suspected
that
the
underwater
lake
formed
when
a
giant
glacier,
now
1,300
feet
thick,
moved
over
the
salty
lake
at
least
1.5
million
years
ago.可以得出正确选项。
4．答案与解析：C 细节理解题。由第四段中的Instead,
they
are
able
to
exist
using
the
iron.可知这些微生物依靠铁元素生存。
B
【语篇解读】 本文是一篇记叙文。主题语境为人与社会，主题语境内容为志愿服务。文章记述了作者请一位家长做志愿者的故事。文章侧重社会服务和人际沟通素养的培养。
5．答案与解析：C 推理判断题。本题题干意为：从第一段那位家长的回答中我们可以推断出关于她的什么？文章中，那位家长的回答是“你可以把我作为最后一个选择，如果没有其他人愿意当志愿者，那么我就做”。根据其回答可以知道，她其实是不太愿意做志愿者的，故C项正确。
6．答案与解析：B 词义猜测题。本题题干意为：第二段中的画线短语“tug
at
the
heartstrings”的意思是什么？根据上下文可知，此处表示“我”又试了一次，这回开始打感情牌。画线短语意为“触动心弦”，故B项正确。A：鼓励团队合作；C：促进良好行为；D：提供建议。
7．答案与解析：D 推理判断题。本题题干意为：从第三段中，我们能够得知那位家长的什么情况？在文章的第三段，作者记述了那位家长在活动中所做的事情，即安排饮食计划、发送邮件、募集资金等，她成了团队中一个重要的成员。因此D项(她成了一个好助手)正确。
8．答案与解析：B 推理判断题。本题题干意为：为什么作者喜欢做志愿工作？根据文章倒数第二段中的“Connecting
to
the
community...provides
a
real
joy”以及“Volunteering
just
feels
so
good.”可知，作者认为，做志愿工作能让她开心。故B项正确。A：这给予她一种责任感；C：这让她能努力工作；D：这给她带来了物质上的回报。
Ⅱ.七选五
【语篇解读】 本文为指导类说明文。课堂上睡觉会妨碍你听讲。弄清楚你课上睡觉的原因并改变这种状况对你的学习非常重要。文章就“如何应对上课睡觉以保持头脑清醒”提供了几种有效的方法。
1．答案与解析：D 本空前一句介绍了上课睡觉的害处。根据D选项中的also可以判断，此选项也在讲上课睡觉的影响，故D选项符合前后逻辑，内容上也相关，故选D。
2．答案与解析：F 该空所在段落主题句为第一句话，即“上学时的晚上要得到充足的睡眠”，故F项与本段主题相符。
3．答案与解析：E 由本段主题Eat
a
healthy
breakfast
full
of
nutritious
food.可以判断，该空所表达意思与饮食营养有关，故选E项。
4．答案与解析：A 根据文章特点可以判断此空为祈使句，并且是本段主题句。再根据本段内容可以判断应选A，即“积极参与课堂”。
5．答案与解析：G 根据本段语境为药物导致睡眠可以判断G项为最佳选项。(共60张PPT)
Section
Ⅰ Starting
out
&
Understanding
ideas(共58张PPT)
Section
Ⅲ Using
language
&
Developing
ideas课时作业(十八) Unit
6
Section
Ⅲ Using
language
&
Developing
ideas
Ⅰ.阅读理解
A
California
has
lost
half
its
big
trees
since
the
1930s,
according
to
a
study
to
be
published
Tuesday
and
climate
change
seems
to
be
a
major
factor
(因素)．
The
number
of
trees
larger
than
two
feet
across
has
declined
by
50
percent
on
more
than
46
000
square
miles
of
California
forests,
the
new
study
finds.
No
area
was
spared
or
unaffected,
from
the
foggy
northern
coast
to
the
Sierra
Nevada
Mountains
to
the
San
Gabriels
above
Los
Angeles.
In
the
Sierra
high
country,
the
number
of
big
trees
has
fallen
by
more
than
55
percent;
in
parts
of
southern
California
the
decline
was
nearly
75
percent.
Many
factors
contributed
to
the
decline,
said
Patrick
McIntyre,
an
ecologist
who
was
the
lead
author
of
the
study.
Woodcutters
targeted
big
trees.
Housing
development
pushed
into
the
woods.
Aggressive
wildfire
control
has
left
California
forests
crowded
with
small
trees
that
compete
with
big
trees
for
resources
(资源)．
But
in
comparing
a
study
of
California
forests
done
in
the
1920s
and
1930s
with
another
one
between
2001
and
2010,
McIntyre
and
his
colleagues
documented
a
widespread
death
of
big
trees
that
was
evident
even
in
wildlands
protected
from
woodcutting
or
development.
The
loss
of
big
trees
was
greatest
in
areas
where
trees
had
suffered
the
greatest
water
shortage.
The
researchers
figured
out
water
stress
with
a
computer
model
that
calculated
how
much
water
trees
were
getting
in
comparison
with
how
much
they
needed,
taking
into
account
such
things
as
rainfall,
air
temperature,
dampness
of
soil,
and
the
timing
of
snowmelt
(融雪)．
Since
the
1930s,
McIntyre
said,
the
biggest
factors
driving
up
water
stress
in
the
state
have
been
rising
temperatures,
which
cause
trees
to
lose
more
water
to
the
air,
and
earlier
snowmelt,
which
reduces
the
water
supply
available
to
trees
during
the
dry
season.
1．What
is
the
second
paragraph
mainly
about?
A．The
seriousness
of
big?tree
loss
in
California
B．The
increasing
variety
of
California
big
trees.
C．The
distribution
of
big
trees
in
California
forests.
D．The
influence
of
farming
on
big
trees
in
California.
2．Which
of
the
following
is
well?intentioned
but
may
be
bad
for
big
trees?
A．Ecological
studies
of
forests.
B．Banning
woodcutting.
C．Limiting
housing
development.
D．Fire
control
measures.
3．What
is
a
major
cause
of
the
water
shortage
according
to
McIntyre?
A．Inadequate
snowmelt.
B．A
longer
dry
season.
C．A
warmer
climate.
D．Dampness
of
the
air.
4．What
can
be
a
suitable
title
for
the
text?
A．California's
Forests:
Where
Have
All
the
Big
Trees
Gone?
B．Cutting
of
Big
Trees
to
Be
Prohibited
in
California
Soon
C．Why
Are
the
Big
Trees
Important
to
California
Forests?
D．Patrick
McIntyre:
Grow
More
Big
Trees
in
California
B
How
does
an
ecosystem
(生态系统)
work?
What
makes
the
populations
of
different
species
the
way
they
are?
Why
are
there
so
many
flies
and
so
few
wolves?
To
find
an
answer,
scientists
have
built
mathematical
models
of
food
webs,
noting
who
eats
whom
and
how
much
each
one
eats.
With
such
models,
scientists
have
found
out
some
key
principles
operating
in
food
webs.
Most
food
webs,
for
instance,
consist
of
many
weak
links
rather
than
a
few
strong
ones.
When
a
predator
(掠食动物)
always
eats
huge
numbers
of
a
single
prey
(猎物),
the
two
species
are
strongly
linked;
when
a
predator
lives
on
various
species,
they
are
weakly
linked.
Food
webs
may
be
dominated
by
many
weak
links
because
that
arrangement
is
more
stable
over
the
long
term.
If
a
predator
can
eat
several
species,
it
can
survive
the
extinction
(灭绝)
of
one
of
them.
And
if
a
predator
can
move
on
to
another
species
that
is
easier
to
find
when
a
prey
species
becomes
rare,
the
switch
allows
the
original
prey
to
recover.
The
weak
links
may
thus
keep
species
from
driving
one
another
to
extinction.
Mathematical
models
have
also
revealed
that
food
webs
may
be
unstable,
where
small
changes
of
top
predators
can
lead
to
big
effects
throughout
entire
ecosystems.
In
the
1960s,
scientists
proposed
that
predators
at
the
top
of
a
food
web
had
a
surprising
amount
of
control
over
the
size
of
populations
of
other
species—including
species
they
did
not
directly
attack.
And
unplanned
human
activities
have
proved
the
idea
of
top?down
control
by
top
predators
to
be
true.
In
the
ocean,
we
fished
for
top
predators
such
as
cod
on
an
industrial
scale,
while
on
land,
we
killed
off
large
predators
such
as
wolves.
These
actions
have
greatly
affected
the
ecological
balance.
Scientists
have
built
an
early?warning
system
based
on
mathematical
models.
Ideally,
the
system
would
tell
us
when
to
adapt
human
activities
that
are
pushing
an
ecosystem
toward
a
breakdown
or
would
even
allow
us
to
pull
an
ecosystem
back
from
the
borderline.
Prevention
is
key,
scientists
say,
because
once
ecosystems
pass
their
tipping
point
(临界点),
it
is
remarkably
difficult
for
them
to
return.
5．What
have
scientists
discovered
with
the
help
of
mathematical
models
of
food
webs?
A．The
living
habits
of
species
in
food
webs.
B．The
rules
governing
food
webs
of
the
ecosystems.
C．The
approaches
to
studying
the
species
in
the
ecosystems.
D．The
differences
between
weak
and
strong
links
in
food
webs.
6．A
strong
link
is
found
between
two
species
when
a
predator
________.
A．has
a
wide
food
choice
B．can
easily
find
new
prey
C．sticks
to
one
prey
species
D．can
quickly
move
to
another
place
7．What
will
happen
if
the
populations
of
top
predators
in
a
food
web
greatly
decline?
A．The
prey
species
they
directly
attack
will
die
out.
B．The
species
they
indirectly
attack
will
turn
into
top
predators.
C．The
living
environment
of
other
species
will
remain
unchanged.
D．The
populations
of
other
species
will
experience
unexpected
changes.
8．What
conclusion
can
be
drawn
from
the
examples
in
Paragraph
4?
A．Uncontrolled
human
activities
greatly
upset
ecosystems.
B．Rapid
economic
development
threatens
animal
habitats.
C．Species
of
commercial
value
dominate
other
species.
D．Industrial
activities
help
keep
food
webs
stable.
C
Who
cares
if
people
think
wrongly
that
the
internet
has
had
more
important
influences
than
the
washing
machine?
Why
does
it
matter
that
people
are
more
impressed
by
the
most
recent
changes?
It
would
not
matter
if
these
misjudgments
were
just
a
matter
of
people's
opinions.
However,
they
have
real
impacts,
as
they
result
in
misguided
use
of
scarce
resources.
The
fascination
with
the
ICT
(Information
and
Communication
Technology)
revolution,
represented
by
the
internet,
has
made
some
rich
countries
wrongly
conclude
that
making
things
is
so
“yesterday”
that
they
should
try
to
live
on
ideas.
This
belief
in
“post?industrial
society”
has
led
those
countries
to
neglect
their
manufacturing
sector
(制造业),
with
negative
consequences
for
their
economies.
Even
more
worryingly,
the
fascination
with
the
internet
by
people
in
rich
countries
has
moved
the
international
community
to
worry
about
the
“digital
divide”
between
the
rich
countries
and
the
poor
countries.
This
has
led
companies
and
individuals
to
donate
money
to
developing
countries
to
buy
computer
equipment
and
internet
facilities.
The
question,
however,
is
whether
this
is
what
the
developing
countries
need
the
most.
Perhaps
giving
money
for
those
less
fashionable
things
such
as
digging
wells,
extending
electricity
networks
and
making
more
affordable
washing
machines
would
have
improved
people's
lives
more
than
giving
every
child
a
laptop
computer
or
setting
up
internet
centres
in
rural
villages.
I
am
not
saying
that
those
things
are
necessarily
more
important,
but
many
donators
have
rushed
into
fancy
programmes
without
carefully
assessing
the
relative
long?term
costs
and
benefits
of
alternative
uses
of
their
money.
In
yet
another
example,
a
fascination
with
the
new
has
led
people
to
believe
that
the
recent
changes
in
the
technologies
of
communications
and
transportation
are
so
revolutionary
that
now
we
live
in
a
“borderless
world”.
As
a
result,
in
the
last
twenty
years
or
so,
many
people
have
come
to
believe
that
whatever
change
is
happening
today
is
the
result
of
great
technological
progress,
going
against
which
will
be
like
trying
to
turn
the
clock
back.
Believing
in
such
a
world,
many
governments
have
put
an
end
to
some
of
the
very
necessary
regulations
on
cross?border
flows
of
capital,
labour
and
goods,
with
poor
results.
Understanding
technological
trends
is
very
important
for
correctly
designing
economic
policies,
both
at
the
national
and
the
international
levels,
and
for
making
the
right
career
choices
at
the
individual
level.
However,
our
fascination
with
the
latest,
and
our
under?valuation
of
what
has
already
become
common,
can,
and
has,
led
us
in
all
sorts
of
wrong
directions.
9．Misjudgments
on
the
influences
of
new
technology
can
lead
to
________.
A．a
lack
of
confidence
in
technology
B．a
slow
progress
in
technology
C．a
conflict
of
public
opinions
D．a
waste
of
limited
resources
10．The
example
in
Paragraph
4
suggests
that
donators
should
________.
A．take
people's
essential
needs
into
account
B．make
their
programmes
attractive
to
people
C．ensure
that
each
child
gets
financial
support
D．provide
more
affordable
internet
facilities
11．What
has
led
many
governments
to
remove
necessary
regulations?
A．Neglecting
the
impacts
of
technological
advances.
B．Believing
that
the
world
has
become
borderless.
C．Ignoring
the
power
of
economic
development.
D．Over?emphasizing
the
role
of
international
communication.
12．What
can
we
learn
from
the
passage?
A．People
should
be
encouraged
to
make
more
donations.
B．Traditional
technology
still
has
a
place
nowadays.
C．Making
right
career
choices
is
crucial
to
personal
success.
D．Economic
policies
should
follow
technological
trends.
课时作业(十八)
Ⅰ.阅读理解
A
【语篇解读】 本文是一篇说明文。文章介绍了加利福尼亚州的大树的数量急剧下降这一现象，并分析了其背后的原因。
1．答案与解析：A 段落大意题。该题问的是第二段的主要内容。根据第二段内容尤其是本段中列举的几个数据“50
percent...46
000
square
miles...more
than
55
percent...nearly
75
percent”可知，第二段主要介绍了加利福尼亚州的大树损失的严重性。故选A。
2．答案与解析：D 推理判断题。根据第三段最后一句可知，防火措施的意图是好的，但是对大树不利。故选D。
3．答案与解析：C 细节理解题。根据最后一段可知，温暖的气候是缺水的主要原因。故选C。
4．答案与解析：A 标题概括题。根据全文及第二段第一句可知，文章介绍了加利福尼亚州的大树的数量急剧下降的现象，并分析了其背后的原因。A项“加利福尼亚的森林：所有的大树都去哪了？”概括了文章的主旨，适合作本文的标题。故选A。
B
【语篇解读】 本文是一篇说明文。最近科学家们建立了一些关于食物网的数学模型以帮助人们更好地了解生态系统的运作以及如何维持生态系统的平衡。
5．答案与解析：B 细节理解题。根据第二段第一句可知，科学家利用食物网的数学模型发现了管理生态系统中食物网的一些重要原则。故选B。
6．答案与解析：C 细节理解题。根据第二段第三句中的“When
a
predator
(掠食动物)
always
eats
huge
numbers
of
a
single
prey
(猎物),
the
two
species
are,
strongly
linked”可知，当一种掠食动物总是捕食某一种猎物时，说明这两类动物之间的联系是很紧密的。故选C。
7．答案与解析：D 推理判断题。该题问的是如果食物网顶端的掠食动物的数量急剧下降会发生什么。根据第三段中的“...small
changes
of
top
predators
can
lead
to
big
effects
throughout
entire
ecosystem...predators
at
the
top
of
a
food
web
had
a
surprising
amount
of
control
over
the
size
of
the
populations
of
other
species—including
species
they
did
not
directly
attack”可推知，食物网顶端的掠食动物的数量即使有一些小的变化也会对整个生态系统造成很大的影响，其他种类的动植物的数量会发生很大的变化。由此可推知，如果食物网顶端的掠食动物的数量急剧下降，其他种类的动植物的数量也会发生意想不到的变化。故选D。
8．答案与解析：A 推理判断题。根据第四段最后一句，可知，那些例子表明，毫无控制的人类活动会严重影响生态平衡。故选A。
C
【语篇解读】 本文是一篇议论文。文章阐述了盲目追赶和推崇新科技可能会带来的严重结果。
9．答案与解析：D 细节理解题。该题问的是对新科技的误判会导致什么结果。根据第二段第二句可知，对科技的误判会导致稀有资源的误用，即资源的浪费。故选D。
10．答案与解析：A 推理判断题。该题问的是第四段中的事例暗示捐助者们应该做什么。根据第四段内容，尤其是第四、五句可知，捐助者在捐助时应该考虑到人们的基本需求。故选A。
11．答案与解析：B 推理判断题。该题问的是什么导致政府终止了必要的监管。根据第五段内容，尤其是第一、三句可推知，很多政府相信世界变成了无边界的世界交流而终止必要的监管。故选B。
12．答案与解析：B 推理判断题。该题问的是我们能从文章中了解到什么。根据最后一句可推知，传统技术在当今社会仍然很重要。故选B。(共17张PPT)
Section
Ⅱ Discovering
Useful
Structures
Grammar
—
现在完成进行时
