作业帮牛津英语8b总复习有关语法
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牛津英语8b总复习有关语法
牛津英语8b总复习
有关语法
牛津英语8b总复习有关语法
二、语法要点：
1.时态：
时态名称 构成基本形式 信息词
一般现在时 am/ is/ are; do/ does; V/ V-s usually,often,always,sometimes,seldom,never,
every day,twice a month
一般过去时 was/ were ; did; V-ed yesterday,last night,two days ago,just now,the next day
现在进行时 am/ is/ are + V-ing now,at the moment,at present,right now
过去进行时 was/ were + V-ing at 8:30 yesterday evening,at that time,this time yesterday
现在完成时 have / has +Vp.p.already,since,ever,yet,just,for,recently,never,in the past few years
一般将来时 will / be going to + V tomorrow,next week,soon
2.现在完成时态中短动词与长动词变换对应表:
短动词 长动词
buy have had
borrow have kept
arrive / come / go have been in
leave have been away from
die have been dead
join have been in / have been a member of
begin / start have been on
stop have been over
get married have been married
get to know have known
open have been open
close have been closed
3.易混时间副词用法比较表:
just now 与just just now 用于一般过去时
(He drank a bottle of apple juice just now) just用于现在完成时
(I have just seen Sandy)
ago 与before He came here three days ago I have never been here before
already与yet already 用于现在完成时的肯定句 (I have already done my homework.) yet 用于现在完成时的否定句和一般疑问句 (I haven’t done my homework yet.) (Have you done your homework yet?)
since 与 for Since+一点时间 / 或+ 一般过去时句子 for a month (for +一段时间)= since a month ago
ever 与 never ever 曾经 never从不
have been to 去过某地; have been in 呆在某地; have gone to 去了某地
4.主动语态和被动语态变化表:
时态 主动语态 被动语态
一般现在时 Subject + Verb(s) + Object Object + am/ is/ are + Vp.p.+ by Subject
一般过去时 Subject + Verb-ed + Object Object + was/ were + Vp.p.+ by Subject