小学三年级英语语法及练习题
-
小学三年级英语语法及练习题
口诀：
单数句子变，变化规则要记住。
名词代词要变化，
am, is
要变<
/p>
are
。
this,
that
变成啥，
these,
those
来替它。
he, she, it
要变啥，全部变
they
不用怕。
I
要变
we
莫落下
，名词后面把
s/es
加。
名前冠词去掉它，其余成分原样加。
具体注意下面的六要素：
1.
单数主格人称代词要变成相应的
复数主格人称代词，即
I→we;
you→you;
she,
he,
it→they
。
如：
She is a
girl.→They are girls.
2.
am, is
要变为
are
。
如：
I'm a
student. →We are students.
3.
不定冠词
a,
an
要去掉。如：
He is a
boy. →They are boys.
4.<
/p>
普通单数名词要变为复数形式。如：
It is a cat. →They are cats.
5.
指示代词
this,
that
要变为
these,
those
。如：
This is
a book.→These are books.
6.
man, woman
作定语修饰可数名词时，
要在
数
上与被修饰名词保持一致。
但其他
名词修饰名词表示
性质
时，不作变化。如：
He
is a man doctor.→They are men doctors.
This is an apple tree.→They are apple
trees.
单复数相互转换，每空一词
(
含缩写
)
。
1. The woman is
a nurse.(
改为复数句
)
The _________ _________ _________.
2. There are some old
cars.(
改为单数句
)
There _________ _________ old
_________.
3. He has a new
book.(
改为复数句
)
_________ _________ new _________.
4. Are these your chicks
?(
改为单数句
)
_______ _______ your _______?
5. Is there a sheep in the
playground?(
改为复数句
)
________ there ________
________ in the playground?
can
在英语中有一个特殊的名字
,
叫做情态
动词，
表示
能够
会
能力
后面要跟着表
示动作的动词。没有时态和人称的变化。表示不能做什
么的时候
,
后面加上
not
为
can
not,
或者缩写为
can't
。
问别人
<
/p>
能
…
吗
?
要把
can
放在句子前面
< br>,
首字母要大写
,
句尾别忘加上
问号。
例句：
-
I can swing
.I can draw.
-
She
can can play .
-
We can touch .They can run.
-
I can't can't
see.
-
She
can't can't hear a car.
-
We can't hear an aeroplane.
-
Can you hear a
dog?Can he hear a bus?
-
Can Lucy write?Can you do
it?
将下面各组词组成句子
1.________________________(an,aeroplane,h
ear,Lucy,can )
2.
____________________________ (not,he ,dance,can )
3.____________________________?
(you,can ,see,what )
4.____________________________(can ,see
,not ,we ,you)
5._____________________________. (I
,can ,help ,you )
6._____________________________? (I,can
,do,what)
7._____________________________? (you
,can ,hear me)
8._____________________________? (you
,can ,dance)
答案：
1.
Lucy can hear an aeroplane.
2. He can not /can't
dance.
3. What can you see?
4. We can not
/can't see you.