小学五年级英语语法:过去完成?/p>
用法:在过去的时间里,两个动作中,发生在前的那个动作要用过去完成时?/p>
结构?/p>
had+
过去分词
After
she
had
finished
her
homework,
she
went
shopping.
They
had
sold
the
car
before
I
asked
the
price.
The
train
had
left
before
I
arrived
at
the
station.
They
had
sold
the
car
before
I
asked
the
price.
The
train
had
left
before
I
arrived
at
the
station.
After/before
引导的时间状语从句放在句首要在句子后面加逗号,如果放在主句后?/p>
不用加?/p>
1.
变疑问句将助动词移到句首
Had
she
finished
her
homework?
2.
变否定句在助动词后面?/p>
not
She
hadn’t
finished
her
homewo
rk.
3.
肯定回答及否定回?/p>
Yes,
she
had.
No,
she
hadn’t.
4.
特殊疑问句:
What
had
she
done?
摘要?/p>
小学五年级英语语法:现在完成?/p>
构成:主?/p>
+
助动?/p>
have,
has+
过去分词
用法?/p>
2)
表示过去?/p>
生的和现在有某种联系的动作,常和
just,
usually,
already,
since
等时间副词连?/p>
I
have
just
had
lunch.
(
饱了,不?/p>
小学五年级英语语法:现在完成?/p>
构成:主?/p>
+
助动?/p>
have,
has+
过去分词