模
块
语
法
专
练
现在完成时
(
二
)
1.
当表示动作已经完成并对现在有一定影响时
,
一般用现在完成时。同时
,
可用
just,already
或
yet
加以强调或说明。
just
用来表示
“
刚刚
”;already
用来表示
“
已经
”,
一般置于
have/has
之后
,
两者都用于肯定句
;
在否定句或疑问句中则要用
yet,
表示
“
还
(
未
)”
。例如
:
I have just heard the news.
我刚刚听到那个消息。
They have already been to the USA.
他们已经去过美国了。
I haven
’
t heard from Tom yet.
我还没有收到汤姆的来信。
2.
现在完成时与一般过去时的区别。
( 1 )
构成形式不同。
现在完成时的动词形式为
“have/has+
动词的过去分词
”;
一般过去时的动词形式为
“
动词的过去式
”
。例如
:
Maria has never read any Chinese stories.
玛利亚从未读过中国故事。
Jack
’
s mother took him to school every day when he was in primary school.
当杰克上小学时
,
他妈妈每天送他上学。
( 2 )
基本用法不同。
现在完成时侧重于过去的动作对现在造成的影响
;
而一般过去时侧重于表示过去的动作
,
与现在无关。例如
:
Li Lei has read the book.
李磊已经看过那本书。
(
说明李磊了解那本书的内容
)
Yesterday I went to the zoo.
昨天我去了动物园。
(
仅说明昨天去了动物园
,
与现在无关
)
3.have been to
和
have gone to
的用法辨析。
( 1 )have been to
意为
“
到过
,
去过
”,
表示曾经去过某地
,
而此时人已不在那里
,
常与
just,ever,never,once,twice,several times
等连用。例如
:
Have you ever been to the Great Wall?
你曾经去过长城吗
?
( 2 )have gone to
意为
“
去了
”,
表示某人到某处去了
,
可能在去的路上或已到那个地方了。例如
:
—May I speak to Han Mei?
请韩梅接电话好吗
?
—Sorry,she
’
s gone to the library.
抱歉
,
她去图书馆了。
Ⅰ
.
单项填空
(
D
)1.Miss Brown,we
cleaning our classroom.Can we go home now?
A.finish
B.finishing
C.are finished D.have finished
(
C
)2.In the past few years,great changes
in Lianyungang.
A.take place
B.took place
C.have taken place
D.have been taken place
(
B
)3.—Dad,where is Mum?
—She
the supermarket.
A.has been to B.has gone to
C.is going to D.go
(
A
)4.I
the book
Little
Women
,but I
’
ll let you read it first.
A.haven
’
t read B.don
’
t read
C.won
’
t read
D.read
(
D
)5.Since then,our home town has become a new city.Everything
.
A.is changed B.was changed
C.had changed D.has changed
(
B
)6.—Lisa,why are you still here?School is over.
—I
my classroom yet.I need fifteen more minutes.
A.don
’
t clean B.haven
’
t cleaned
C.didn
’
t clean D.won
’
t clean
(
C
)7.Scientists think that there
life on the earth for hundreds of millions of years.
A.were
B.have
been
C.has been D.has
(
C
)8.—
you
your lunch?
—Yes,I have.I had it ten minutes ago.
A.Do;have B.Are;having
C.Have;had D.Did;have
Ⅱ
.
根据句意用所给词的适当形式填空
1.My brother
bought
( buy ) a camera last month.
2.Mrs Smith
has been
( be ) in hospital already since she
came
( come ) here.
3.The room is very cold.Who
has opened
( open ) the door?
4.What
has happened
( happen ) here?There is some water on the desk.
5.Alice
has been
( be ) in Paris for twenty years.
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