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现在完成时复习课件

发布时间:2014-06-13 09:18:34  

Treasure Island

shanghai

the Palace Museum

现在完成时
the Present Perfect Tense by Han Jiangxia

复习目标
? 掌握现在完成时的结构 ? 掌握现在完成时的用法 ? 掌握have/has been to have/has gone to have/has been in的区别

现在完成时的构成: have/has + 动词的过去分词

注:动词过去分词的构成分为规则变化 和不规则变化,规则变化的动词过去分 词与过去式是一样的,不规则变化的动 词须特殊记忆。

规则动词过去分词的构成
构成规则 1. 一般在动词后直接加-ed
2. 以不发音的e结尾的动词,

例词 look play live hope stop plan looked played lived hoped stopped planned

直接加-d
3.末尾只有一个辅音字母的

重读闭音节词,先双写这 个辅音字母,再加-ed 4.结尾是“辅音字母+y”的动词, 先变“y”为“i”再加-ed

study carry

studied carried

写出下列动词的过去分词:
work
like cry stay

worked
liked cried stayed learned

use
help finish cook

used
helped finished

cooked arrived

learn

arrive

不规则动词过去分词的构成
1. 三个主要动词
is, am be was

been had done

are
have/has

were
had did

do/does

2. AAA型 (三者一致) beat cut hurt let put cost read beat cut hurt let put cost read beat cut hurt let put cost read

3. ABA型 (过去分词与原形一致)
come came come

become run

became ran

become run

4. ABB型 (过去分词与过去式一致)
bring find hear keep brought found heard kept brought found heard kept

make

made

made

此外还有build,buy,catch,feed,feel, fight,hang,hold,learn,leave, lose,mean,meet,pay, say,,sell,send , sit,sleep,spell,spend,stand,sweep, teach,tell,think, win 等等。

5. ABC型 (三者不一致)
eat give write ate gave wrote eaten given written

see
get

saw
got

seen
gotten

begin

began

begun

此外还有go, take, know, speak, swim,forget等等。

现在完成时态的句式:
1.肯定句:主语+ have/has+过去分词+其他成分。 2.否定句:主语+have/has+not+过去分词+其他成分。

3.一般疑问句:Have/Has+主语+过去分词+其他成分?
肯定回答:Yes,主语+have/has.

否定回答:No,主语+haven't/hasn't.
4.特殊疑问句:特殊疑问词+have/has+其他成分?

肯定句:I have cleaned my bedroom. 否定句:I haven’t cleaned my bedroom. 一般疑问句:Have you cleaned your bedroom?

现在完成时的用法:
1. 表示已完成的某一动作对现在造成的影响或 结果 1) 标志词:
already: 多用于陈述句,位于have/has后,有时位于句末。 yet:

I have already finished my homework.
用于疑问句和否定句,位于句尾。

Have you found your lost book yet ? I haven't had breakfast yet.
ever :
多用于疑问句,问初次经历。

Have you ever been to Beijing?
never:

He has never argued with others.

用于否定句,位于hav

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