译林英语七上Unit 1 This is me(Grammar) PPT (共22张)

(共22张PPT)
Grammar
(Be
动词)一般现在时
Unit
1
This
is
me!
语
法
一般现在时(I)
(Simple
Present
Tense)
(一般现在时的几种用法)
My
hair
is
long.
—things
that
are
true
now.
1.
目前存在的事实，状态
Simon
often
plays
football
after
school.
—things
that
we
do
regularly.
2.
经常做的事,
习惯性动作
Cats
eat
fish.
—things
that
are
always
true.
3.
客观事实，普遍真理
1.
I
am
an
English
teacher.
2.
He
is
short.
3.
You
are
in
Class
1.
Be
动词的一般现在时
★
表示现在存在的状态。
“
be
”动词的一般现在时形式：有三种：
am
is
are
动词为be时，一般随句中人称的不同而发生相应的变化。
第一人称
我们一起想想有哪些人称吧！
I
第二人称
you
第三人称
He
/
She
/It
…
复数人称
We/
You/They
1.
主语为第一人称单数
I
时，be
动词用
am。
例：I
am
12
years
old.
我今年12岁。
I
am
=
I’m
2.
主语为第二人称(you),第一人称复数
(we)
,以及第三人称复数(they)
时，be
动词用
are。
例：You
are
students.
你们是学生。
You
are
=
You’re
例：We
are
students.
我们是学生。
We
are
=
We’re
例：They
are
students.
他们是学生。
They
are
=
They’re
3.
主语为第三人称单数(he/she/it)
时，be
动词用
is。
例：He
is
happy.
他很开心。
He
is
=
He’s
例：She
is
happy.
她很开心。
She
is
=
She’s
例：It
is
students.
它很开心。
It
is
=It’s
用法口诀：
“我(I)”用am
,
“你(you)”用are,
“is用于“他(he)”、“她(she)”、“它(it)”,
复数人称都用“are”。
如果主语是人名，be
动词用什么形式呢？
一、将下列人称与正确的be动词匹配。
am
is
are
Sandy
students
I
he/she/it
They
We
二、用be动词的正确形式填空。
1.
I
______
tall.
2.
He
______
good
at
playing
basketball.
3.
They
______
my
friends.
4.
My
parents
______
very
happy.
5.
Millie______
from
Nanjing.
am
is
are
are
is
I
am
happy
You/We/They
are
He/She/It
is
主语
be动词
其他
肯定句
I
am
not
happy
You/We/They
are
not
He/She/It
is
not
主语
be动词
其他
否定句
一般现在时be动词在不同句式中的用法
总结：否定只需在be动词后加not.
Practice
I
happy.
We/You/They
students.
He
a
good
boy.
She
a
beautiful
girl.
I
have
a
new
pen,
and
it
red
in
color.
am
are
is
is
is
用be动词的否定形式填空
I
(be
not)
happy.
He/She/It
(be
not)
happy.
We/You/They
(be
not)
happy.
总结：否定只需在be动词后加not.
am
not
is
not
are
not
I
am
happy
You/We/They
are
He/She/It
is
主语
be动词
其他
肯定句
Am
I
happy
Are
You/We/They
Is
He/She/It
主语
be动词
其他
疑问句
Am
I
happy
Are
You/We/They
Is
He/She/It
主语
be动词
其他
疑问句
肯定回答
否定回答
Yes,
I
am.
Yes,
you/we/they
are.
Yes,
he/she/it
is.
No,
I
am
not.
No,
you/we/they
are
not.
No,
he/she/it
is
not.
Complete
the
sentences
1.
This
book
is
new.
_______(be/it)
old?
No,
_______(it/be).
2.
We
are
late.
_______(be/we)
late?
Yes,
_______(you/
be)
half
an
hour
late.
Is
it
it
isn’t
Are
we
you
are
1.
He
is
a
clever
boy.
(改为否定句)
2.
I’m
from
Nanjing.
(改为一般疑问句，否定回答)
3.
We
are
very
lucky.
(改为一般疑问句，肯定回答)
Are
you
from
Nanjing?
No,
I’m
not.
He
is
not
a
clever
boy.
Are
you
very
lucky?
Yes,
we
are.
今天我们学了什么？
1.
Be动词的三种形式：am、is、are。
2.
Be动词句式的构成：
(1)肯定句：主语+am/is/are+其他.
(2)否定句：主语+am/is/are+其他.
(3)疑问句：主语+am/is/are+其他.
肯定回答：Yes,
主语+am/is/are.
否定回答：No,
主语+am/is/are
+
not.
Homework
Review
the
simple
present
tense
about
‘to
be’.
2.
Use
positive
and
negative
statement
of
‘to
be’.
3.
Write
a
daily.