内容正文:
谓语动词
一、时态
时态
动词构成
提示词
动词形式规则
一般现在时
v原/v三单
often,usually,sometimes,always,
on Sundays, every...;once a week
when/if/as soon as 主将从现
v三单 构成:
①+s
②辅音+y: study-studies
③以s,x,ch,sh,o结尾+es ④ have-has
一般过去时
v-p(过去式)
Yesterday,in 1990,last ...,... ago,just now,at that time,
one day; once upon a time; when/if/as soon as/since后谓语.used to do sth
v-p/v-pp构成
①+ed (有不发音e结尾+d) ②辅+y结尾,变y 为i+ed
③重读辅-元-辅结尾,双写最后一个辅音字母+ed
④ 不规则(见不规则动词表)
现在进行时
am/is/are+v-ing
now, at this moment, at present, in this month,these days
Look! Listen! Be quiet/Don’t make noise!! Where is Tom?
v-ing(现在分词)构成
①+ing(有不发音e结尾去e+ing)
②把ie改y再加ing
③重读辅-元-辅结尾,双写最后一个辅音字母+ing
过去进行时
was/were+v-ing
①this morning , the whole morning, all day yesterday, this time last night, from 2 to 4 yesterday, ②when, while(前面句子有过去时的动词)
一般将来时
will +v原
am/is/are going to+v原
be/be about to+v原
tomorrow, next..., soon, in the future, in+一段时间,before long, if/as soon as等主将从现
过去将来时
would+v原
was/were going to+v原
if/as soon as后用过去时,主句用过去将来时
现在完成时
have/has+v-pp
①:for + 时间段;since + 时间点, how long句型;twice/many times等次数
②ever,never, already, yet, up to now; till no; so far,in the past few years等
过去完成时
had+v-pp
by/by the end of /before+过去的时间点
二、语态 提示词:by sb
主语是动作的承受者(主语一般为物)
1.一般现在时: am (is, are) +v-pp.
2. 一般过去时: was (were) +v-pp.
3. 一般将来时: will (shall) +be+v-pp
* 4. 带情态动词的被动语态:must (can, may, should, need, would)+ be +v-pp
* 5. 现在进行时: am (is, are) being +v-pp 过去进行时:was (were) being +v-pp
* 6. 现在完成时: have (has) been +v-pp 过去完成时: had been +v-pp
注意:人称、数和时态的变化是通过be的变化表现出来的;数量随新的主语变,时态和原句保持一样。
三、注意
一、以下情况做主语谓语用三单:
1.第三人称单数或名词单数;2.v-ing或to do做主语;3.something等复合不定代词
4.主语从句
二、定语从句that/which/who 做主语,谓语由先行词决定
三、there be ,neither...nor..., either...or...,not only... but also...谓语用就近原则, with/as well as属插入成分,不计数
四、特殊句式
Be doing When +sb do/did while sb be doing sth sb have/has done since sb did sth
Sb will/would do if/unless /as s