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Unit 3
Computers
词汇及扩展
单词
&
短语
词
性
n.
v.
n.
v.
v.
adj.
adj.
v.
v.
中文
扩展
1
order
2
3
4
5
6
7
8
9
1
company
0
compare
speaker
type
control
expensive
tiny
depend
operate
n.
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1
price
1
1
total
2
1
sell
3
1
popular
4
1
5
1
6
1
7
1
8
1
look
forward
grand total
adj.
v.
n.
n.
work as
(be) unaware
of
depend on
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9
to
2
0
课文重难点详解
1.
In the 1940s,
the first computers were bigger than cars.
in
the
1940s
意为“在
20
世纪
40
年代”,
例:在
20
世纪
50
< br>年代
表示在
某个年代初期或末期,可以在年份前加
early
或
late.
例:
in the early
1940s
2.
You may be unaware of them.
be unaware of
意为“未察觉,没有意识到”
in
addition
译:那个男孩没有意识到危险。
3.
There is probably one inside your TV or
washing machine.
one
此处用作代词,用于泛指前面提到过的名词。
辨析:
one
和
it
one
泛指上文提到的同类事物
中的一个
it
特指上文提到的同一物品
The coat is hers. It’s very
beautiful.
例
:
The banana pie tastes
delicious. Could I have another
?
A one
B
it
C this
D that
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I
lost my pen. I must buy one.
4.
You depend on
computers more than you realize.
depend on
意为“依靠,指
望”,主语可以是人,也可以是物,
其含义有所不同。
人
依靠
depend on
物
取决于
dependent
adj.
依赖的,
反义词:
independent
“
独立的”
depend
on = be dependent on
译:
she depends on
us to help her.
Our plan depends on the
weather.
5.
Computers almost never give wrong
answers.
almost never = hardly
意为“几乎不”
辨析:
hardly
和
hard
hardly
hard
6. However, one day
computers may be able to do a better job than
human beings.
be able to
意为“能够”,后接动词原形。
7.
Will we have nothing to do?
to do
为动词不定式,此处用来修饰
nothing,
如果
不定式中的动词
是不及物动词,需要带上必要的介词。
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“几乎不”
Alice
hardly wears skirts.
“努力地,
困难
地,
猛烈地”
It rained
very hard last night.
例:
Do you want something
to drink
?
There
is a warm clothes to
live
in
.
例:
---
Why don’t
you go out to play, Rose?
---
I’m afraid I can’t. I
have much homework
.
A do
B does
C doing
D to do
8. What were the first computers like?
What + be +
主语
+ like?
意为“......怎么样?”,
like
是介词,
意为“像,相似”
译:今天天气怎么样?
辨析:what’s sb like, what does sb like
与
what does sb look like
What’s sb like
What does sb like
“某人如何”
用于询问某人的性格,品质等
“某人喜欢什么”
用于询问某人的爱好
What
does sb look
“某人长什么样”
用于询问某人的外貌
like
young people always need
help from their parents.
need
用法总结:
?
need sb/ sth
需要某人或某物
例:
I
need a pen to write
with.
②
sb need to do sth
某人需要去做某事
例:
He needs to
have a
good rest.
③ sth need
doing
某物需要被
...
例:
My
bike needs
repairing.
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④ needn’t
用来回来
Must
提出的问句
例:
--Must I bring my
homework now? --
No, you
needn’t.
重点语法:
形容词的比较级和最高级
分为规则变化和不规则变化
规则变化如下
:
1)
单音节形容词的比较级和最高级形式是在词尾加
-er
和
-est
构成;
great
long
2)
以
-e
结尾的单音节形容词的比较级和最高级是在词尾加
-r
和
-st
构成;
wide
nice
3)
以辅音字母
+y
结尾的形
容词,
比较级和最高级是把
y
去掉
,
加上
-ier
和
-est
构成;
happy
empty
5)
辅元辅的形容词,比较级和最高级是双写该辅音字母,再
加
-er
和
-est
;
big
fat
6)
部分双音节和多音节形容词,
比
较级和最高级需用
more
和
most
来构成。
beautiful
difficult
常用的不规则变化的形容词的比较级和最高级
:
good/well------better
------best
many------more------most
much------more------most
little-----less----least
bad/ill------worse------
worst
far------
farther/ further---farthest/furthest
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