-
试题习题、尽在百度
选修八
Unit 2
[
基础回顾
]
Ⅰ
.
单句语法填空
(
导学号
02516340)
1
．
The students
are forbidden, unless they have special passes,
to stay
(stay) out after
11 p
．
m.
2
．
He
has
a
strong
objection
to
smoking
(smoke)
in
public
places,
especially
with
females present.
3
．
Why
bother
going/to
go
(go)
abroad
to
study,
when
there
are
so
many
good
universities at home?
4
．
Our
strength
is
from
many
sources,
but
most
of
all,
we
owe
our
success
to
the
creativity of our
people.
5
．
Struck
(strike)
by
strong
snowstorms,
the
area
faced
severe
water
and
electricity
shortage.
6
．
The best way to
undertake big projects is
to force
(force) them into your schedule.
7
．
I have a sweet
tooth and can't resist
eating
(eat) chocolate and ice cream.
8
．
Do
you
know
any
differences
(differ)
between
British
English
and
American
English?
9
．
Living in the
central Australian desert has its problems, of
which
obtaining
(obtain)
water
is not the least.
10
．
We had our
furniture moved to the new house when the
decoration
(decorate) of the
house is finished.
Ⅱ
< br>.
单句改错
(
每句一错
)(
导学号
02516341)
1
．
You can go
swimming in condition that you don't go too far
from the river bank.
in
→
on
2
．
Some rules
should be made to forbid students of
smoking.
of
→
from
3
．
It
suddenly
struck
to
me
that
we
ought
to
make
a
new
plan.
去掉第一个
to
或
struck
→
occurred
4
．
No one knows
exact how the earth began as it happened so long
ago.
exact
→
exactly
5
．
Owe to a lack
of funds, the project will not continue next
year.
Owe
→
Owing
Ⅲ
.
佳句写作
(
导学号
02516342)
1
．这张桌子的问题
是放在我们屋里太大了
.(The problem of ...is
that...)
答案：
The problem of
the desk is that it's too big for our room.
2
．我们决不会推迟这个计划的执行
.(on no
condition
放在句首
)
答案：
On no condition will we
put off carrying out the plan.
仔细审题、认真作答
试题习题、尽在百度
3
．据报道，在那个国家很多工人在罢工
.(be on strike)
答案：
It is reported that many
workers are on strike in that country.
4
．那对孪生兄弟在性格方面互不相同
.(differ)
答案：
The twins differ from
each other in character.
5
．我
反对别人那样跟我说话
.(object to)
答案：
I object to being spoken
to like that.
[
技能提升
]
Ⅰ
.
阅读理解
(
导学号
02516343)
(2018·
唐山模拟
)A new
method of delivering data, which uses the visible
spectrum (
光谱
)
rather than radio waves, has been
tested in a working office.
Li-
fi can deliver Internet
access 100 times faster than traditional
Wi-
fi, offering speeds of up
to 1 Gbps (gigabit per second). It
requires a light source, such as a standard LED
bulb, an Internet
connection and a
photo detector.
It was tested this week
using a Li-
fi-
enabled light
bulb to transmit data at the speed of 1 Gbps.
Laboratory tests have shown theoretical
speeds of up to 224 Gpbs. When tested in an
office, it
allowed
workers
to
access
the
Internet
and
in
an
industrial
space
，
where
it
provided
a
smart
lighting
solution.
Chief
executive
Deepak
Solanki
said
that
the
technology
could
reach
consumers
“within three or
four years”
．
The
term Li-
fi was first coined by Prof.
Haas, who
demonstrated
the
technology
at
a
Ted conference in 2011. His talk, which
has now been watched nearly two million times,
showed
an LED lamp streaming video.
Prof. Haas described a future when billions of
light bulbs could
become wireless hot
spots.
One of the big advantages of
Li-
fi is the fact that, unlike
Wi-
fi, it does not interfere with other
radio signals, so could be used on
aircraft and in other places where interference is
an issue.
However,
the
technology
also
has
its
drawbacks
－
most notably the
fact that it
cannot be used outdoors in
direct sunlight, because that would interfere with
its signal. Neither can
the technology
travel through walls so initial use is likely to
be limited to some places.
[
语篇解读
]
本文是一篇说明文
.
本文主要是向读者
介绍了一种被称作
Li-
fi
的新的传
播
数据的方式
.
1
．
Which of the
following will be the best title of this passage?
A
．
The drawbacks
of traditional Wi-
fi
B
．
The advantages
of Li-
fi
C
．
Li-
fi 100 times faster than
Wi-
fi
D
．
Li-
fi and Wi-
fi
解析：
C
[
主旨大意题
.
通读全文内容可判断出，
本文主要介绍了一种被称作
Li-
fi
的新
仔细审题、认真作答