高中英语 Unit 3 Computers Using Language课时作业 新人教版必修2

《Unit
3
Computers》
Using
Language
Ⅰ.单词拼写
1．He
gave
a
________(信号)to
the
driver
to
carry
on.
2．His
father
is
a
baseball
________(教练)．
3．My
father
bought
an
________(电子的)dictionary
for
me.
4．Generosity
is
part
of
the
American
________(性格，特征)．
5．This
is
a
new
________(类型)of
machine，with
lots
of
meters
on
it.
6．Could
you
teach
me
how
to
________(下载)music
from
the
Internet
7．His
first
________(出现)on
stage
was
at
the
age
of
three.
8．Have
you
________(拖)the
floor
9．The
little
boy
was
so
________(调皮的)that
his
teacher
didn't
know
what
to
do
with
him.
10．Let
me
know
if
any
difficulties
________(出现)．
Ⅱ.阅读理解
A
Shopping
online
in
search
of
a
bargain(便宜货)can
often
leave
you
feeling
disappointed
or
out
of
pocket
rather
than
satisfied.
You
can
avoid
this
by
following
our
simple
advice：
PRODUCT—Before
you
look
for
the
cheapest
price
you
need
to
decide
what
product
you
actually
want.
You
can
do
this
by
researching
online，the
easiest
way
is
to
Google
for
different
products
so
that
you
can
decide
on
what
would
be
best
for
you.
SEARCH
&
COMPARE
—You
are
now
ready
to
use
a
comparison
website
to
try
and
find
out
the
best
prices.
You
should
never
just
use
one
comparison
website，using
two
or
more
will
give
you
a
balanced
view
of
the
market.
Comparison
websites
are
necessary.
You
need
to
first
check
out
what
kind
of
technology
a
site
uses.
Although
the
idea
behind
Froogle(now
called
Google
Products)is
attractive，the
technology
it
uses
is
not
as
advanced
as
sites
such
as
Kelkoo
and
Pricerunner.
Froogle
uses
a
regular
search
engine.
And
don't
expect
price
comparison
sites
to
be
a
sure－fire
way
of
getting
a
bargain.
The
sites
will
only
show
products
from
companies
who
pay
them.
This
is
not
necessarily
a
bad
thing—suppliers
value
their
reputation(名声)and
their
business
relationships.
AND
SEARCH
AGAIN—Before
you
buy
you
should
search
the
product
using
a
price
comparison
service，then
try
again
just
using
a
standard
search
engine—it
might
find
the
product
with
a
cheaper
price.
If
you
use
Firefox
to
surf
the
web
then
there's
an
add－on
(附加的)tool
that
you
can
download
which
finds
the
cheapest
price
for
a
product
for
you.
It
is
called
the
Invisible
Hand
and
it
is
free
to
download.
For
example，if
you're
shopping
online
at
Amazon，the
Invisible
Hand
will
pop
up
and
tell
you
that
it
is
￡56
cheaper
at
Dixons.
The
tool
will
only
work
when
you
are
looking
at
products，so
it
shouldn't
disturb
your
day
to
day
internet
surfing.
The
add－on
is
supported
by
well－known
brands(品牌)such
as
BT，Comet
and
HMV
but
obviously
it
won't
search
every
single
site
out
there，so
it
is
still
best
to
use
a
comparison
site
in
addition
to
the
tool.
1．According
to
the
passage，how
to
decide
what
product
to
buy
A．By
shopping
online.
B．By
searching
online.
C．By
looking
for
the
cheapest
price.
D．By
deciding
which
is
best.
2．We
can
learn
from
the
passage
that
______．
A．we
don't
need
to
use
two
or
more
comparison
websites
B．comparison
websites
often
give
us
wrong
views
and
choices
C．all
the
search
engines
are
the
same
advanced
D．different
comparison
websites
use
different
technologies
3．How
many
tips
does
the
author
give
in
the
passage
A．1.
B．2.
C．3.
D．4.
4．What's
the
exact
meaning
of
the
underlined
phrase
“pop
up”
in
Paragraph
8？It's
______．
A．shout
B．appear
C．disappear
D．hide
5．What's
the
BEST
title
of
the
passage
A．How
to
Find
Perfect
Bargains
Online
B．How
to
Use
Search
Engines
C．Different
Websites
in
the
World
D．Online
Shopping's
Advantage
B
The
computer
is
a
useful
machine.
It
is
the
most
important
invention
in
many
years.
The
oldest
kind
of
computer
is
the
abacus(算盘),
used
in
China
centuries
ago,
but
the
first
large,
modern
computer
was
built
in
1946.A
computer
then
could
do
maths
problems
quite
fast.
Today
computers
are
used
in
many
ways
and
can
do
many
kinds
of
work.
In
a
few
years
the
computer
may
touch
the
life
of
everyone,
even
people
in
faraway
villages.
In
the
last
few
years,
there
have
been
great
changes
in
computers.
They
are
getting
smaller
and
smaller,
and
computing
faster
and
faster,
Many
scientists
agree
that
computers
can
now
do
many
things,
but
they
cannot
do
everything.
Who
knows
what
the
computers
of
tomorrow
will
be
like
Will
computers
bring
good
things
or
bad
things
to
people
The
scientists
of
today
will
have
to
decide
how
to
use
the
computers
of
tomorrow.
6．The
computer
is
a
________
machine.
A．helpful
B．strange
C．large
D．dangerous
7．The
first
large,
modern
computer
was
built
about
________
years
ago.
A．a
few
B．forty
C．seventy
D．eighty
8．The
computers
of
today
are
________
than
before.
A．bigger
B．fewer
C．smaller
D．taller
9．Computers
can
do
________．
A．everything
B．anything
C．nothing
D．lots
of
things
10．The
scientists
of
today
________
how
to
use
the
computers
of
tomorrow.
A．may
decide
B．must
decide
C．can
make
D．needn't
make
Ⅲ.翻译句子
1．昨晚一定下雨了，因为地是湿的。(for)
_________________________________________________________________
2．我看喜剧片时觉得十分轻松。(while)
_________________________________________________________________
3．在他的同伴的帮助下，他的事业成功了。(help)
_________________________________________________________________
4．警察示意车辆停下来等一等。(signal)
_________________________________________________________________
5．他们之间的争吵起因于他的粗鲁。(arise)
_________________________________________________________________
参考答案
Ⅰ.1.signal　2.coach　3.electronic　4.character　5.type　6.download　7.appearance　8.mopped
9．naughty　10.arise
Ⅱ.1.B　细节理解题。由第二段可知“想要决定自己真正想买的东西最容易的方式就是通过Google等搜索引擎在线搜索不同的物品，以便作出最佳的选择”。
2．D　细节理解题。由第三、四段可知A项错在don't
need；B项错在wrong；C项错在the
same；尤其是第四段通过例证说明不同的“比较网站”使用的是不同的搜索引擎技术。
3．C　数字计算题。由文中黑体的内容来看，作者一共提出了三大建议，分别是“PRODUCT”，“SEARCH
AND
COMPARE”，以及“AND
SEARCH
AGAIN”共三条。
4．B　词义猜测题。根据上下文语境可知，“如果你在亚马逊网购物时，the
Invisible
Hand
就将会自动出现并告诉你这个物品在Dixons网卖得便宜56英镑”。句意决定了这个短语应该表示这个the
Invisible
Hand
会自动出现来提示并提供帮助。
5．A　主旨大意题。由第一段开篇点题和综览全文内容及其结构后可知，本文主要提出了几种建议，以便让读者学会更好地在网上淘到廉价货。故A项最全面最准确。
6．A　细节理解题。根据据第1句话
The
computer
is
a
useful
machine
可知答案为A。
7．C　推理判断题。第一台计算机是1946年生产的，距今大约70年，所以应选C。
8．C　细节理解题。根据第3段第2句
They
are
getting
smaller
and
smaller
可知答案为
C。
9．D　推理判断题。根据第2段第1句
Today
computers
are
used
in
many
ways
and
can
do
many
kinds
of
work
以及．..but
they
cannot
do
everything可知答案为D。
10．B　细节理解题。根据最后一句话
The
scientists
of
today
will
have
to
decide
how
to
use
the
computers
of
tomorrow
可知答案为B。
Ⅲ.1.It
must
have
rained
last
night，for
the
ground
is
wet.
2.I
feel
very
relaxed
while
watching
comedy
films.
3.With
the
help
of
his
partner，he
made
his
business
successfully.
4.The
police
signalled
the
cars
to
stop
and
wait
for
a
while.
5.The
quarrel
between
them
arose
from
his
rudeness.