内容正文:
Unit 8
安当
同步系列
Unit 8
Have you read Treasure Island yet?
单元语法专题
语法精讲
4.过去分词的构成
现在完成时(一)
(1)规则动词
1.现在完成时的用法
①一般在动词后面直接加-cd:work→
表示过去发牛或已经完成的动作对现在
worked.
造成的影响或结果。常和just(),already
②以c结尾的动词在其后加-d:live--lived。
(已经),ye(已经),never(从不),ever(曾经),
③以“轴音字母十y”结尾的动问,需将y
before(以前)等时问状语连州。
变为i,冉n-ed:carry-→carried,dry→dried。
2.现在完成时的构成
④以重读闭音节结尾且末尾只有一个轴
现在完成时山“助动词have/has十动词的
音字母的,先双写该辅音字母,冉加-cd:plan一
过去分词”构成
planned,stop-stopped.
3.现在完成时的基本句型
(2)不规则动词
部分动词属于不规则动词,其过去分词
句型
结构
例句
形式要特别记忆,如eat~eaten,take->taken,
主语十have/has十
have
already
背定句
动词过去分词(十
fly→flown,do-→done,think→thought,go-
watched the movie.我
其他).
已经希过这部电影了。
gonc,sce-seen
I haven't scen our dog
主语+have/has十
a.【辨析】already与yet
否定句not十动词过去分
since yesterday.我从
昨天起就没见过我们
多用于肯定句,通常位于助动词
词(十其他,
已经:
的狗。
already
早已
之后,实义动词之前,也可用于
句末
Have you made
Have/Has十主语十many friends in this
已经
用于一段疑问句,位于句末,
动词过去分词(十其
new school?你在这
yet
一般
他)?
所晰学校变了很多朋
还
用于否定句,位于句末。
疑问句
一Yes,主语+have/
友吗?
hns,/No,主语十
Yes,I have./No,I
I already told you not to come over,.我已
haven't/hasn't.
haven't,是的,我交
经告诉你别过来了。
了。/不,我没有,
Has she finished the work yet?她已经完
特殊疑问词十
Where have you been
特殊
have/has十主语十
成了这项T作吗?
疑问句
during the holiday?
动词过去分词(十
She hasn't finished the work yet..她还没
很期你去哪里了?
其他)?
有完成这项工作。
支点,梦想的起点
97
英语
RJ版
八年级下册
心语法专练
()10.-Do you like this science fiction?
一、用所给词的适当形式填空
Yes,it is very interesting.I
1.Your father
just
half of it and I'll try to finish it next
(finish)his work.You can ask him to have
week.
dinner.
A.rcads
B.was reading
2.Somcone
take)the bags
C.have read
D.will read
away.Now there's nothing on the desk
)11.Harry Potter is a very good film.All
3.-Do you know which city Jack is in?
of us
it many times.
Sorry,I don't know.I
A.see
B.have seen
(not hear)from him yet.
C.saw
D.are sceing
4.1
already
the film.I
()12.-Jim,shall we go to the cinema
it last week.(see)
together?
5.
Wei Hua
yet?
I'd love to,but David
me oul
Yes.she
just now.(come)
for dinner together.
二、单项填空
A.invites
B.has invited
()6.
you
your homework
C.will invite
D.w