内容正文:
小升初语法专项 之动词
1、 动词的形式
动词有五种基本形式:原形、第三人称单数形式、过去式、过去分词和现在分词
二、动词第三人称单数的构成
一般现在时第三人称单数作主语时,谓语动词用第三人称单数形式。
构成规则
举例
一般情况
加-s
work-works;
know-knows;
see-sees;
listen-listens;
look-looks
以s,x,z,sh,ch或o结尾
加-es
guess-guesses,
Kiss-kisses,
pass-passes,
fix-fixes,
push-pushes,
go-goes,do-does
以辅音字母+y结尾
改y为i,加-es
try-tries,
study-studies,
fly-flies
carry-carries,
worry-worries
不规则变化
have-has,
be-is
2、 动词过去式和过去分词的构成
动词过去式用于一般过去式时的主动语态;过去分词用于被动语态或完成时态。
I have seen you before.我之前见过你。(seen是see的过去分词,用于完成时态。)
You were seen yesterday.你昨天被人看到了。(seen是see的过去分词,用于被动语态。)
I saw you yesterday.我昨天看到你了。(saw是see的过去式,用于一般过去时。)
大部分动词的过去式和过去分词形式一样,但有些则不一样。
构成规则
举例(原形-过去式-过去分词)
一般情况
加-ed
work-worked-worked
cook-cooked-cooked
stay-stayed-stayed
play-played-played
open-opened-opened
以e结尾
加-d
use-used-used,
live-lived-lived,
like-liked-liked,
close-closed-closed,
pave-paved-paved
以辅音字母+y结尾
改y为i,加-ed
try-tried-tried,
study-studied-studied,
carry-carried-carried,
worry-worried-worried
以重读闭音节
双写该辅音字母,再加-ed
stop-stopped-stopped,
regret-regretted-regretted,
refer-referred-referred,
prefer-preferred-preferred
be动词的变化
be动词的过去式和过去分词分别为:was/were和been
不规则变化
lie-lay-lain(躺下),
lie-lied-lied(说谎);
leave-left-left,
write-wrote-wrote,
make-made-made,
take-took-taken,
see-saw-seen,
win-won-won,
run-ran-run,
build-built-built,
feel-felt-felt,
set-set-set,
become-became-became,
fly-flew-flown
3、 动词现在分词的构成
进行时态中,谓语动词用现在分词。
构成规则
举例
一般情况
加-ing
work-working,
cook-cooking,
stay-staying,
play-playing
以不发音的-e结尾
去e,加-ing
use-using,
live-living,
close-closing,
wave-waving,
pave-paving,
exercise-exercising
以重读闭音节或r音节结尾,且以一个辅音字母结尾
双写该辅音字母,再加-ing
stop-stopping,
admit-admitting,
regret-regretting,
beg-begging,
refer-referring,
deter-deterring,
prefer-preferring
以字母ie结尾
改ie为y,再加-ing
die-dying,
lie-lying,
tie-tying
be动词的变化
being
四、助动词
助动词无词义,与行为动词连用表示时态、语态、语气及构成疑问句和否定句。
助动词有:be, have, do, will,shall
1.表示时态
I am watching TV.我正在看电视。(表示正在进行时)
I will go to school tomorrow.