yingyu
新目标八年级下英语语法提纲
1.一般将来时的三种基本结构:
⑴will +V.
⑵be going to +V.
⑶be + Ving
一般将来时的时间状语:in + 时间,in the future,next + 时间,与tomorrow 相关的时间,this + 时间,from now on,right now,some day…
2.形容词、副词的比较级用法
3.情态动词
情态动词没有人称和数的变化;
情态动词不能直接做谓语,必须和一个动词原形同时使用;
大多数情态动词没有时态的变化;
情态动词加上be,通常表示猜测的语气。
4.过去进行时
⑴用法:表示在过去某一时刻或某段时间内正在进行的动作。
⑵谓语结构:be ( was, were )+ Ving
⑶时间状语:at that time/moment
at + 点钟+ yesterday/last night
from +点钟+ to +点钟+ yesterday
this time yesterday
just then
when he came in, ….(when引导的时间状语从句是过去时,并且动词是短暂性动词时,主句使用过去进行时)5.when & while
when与while都是从属连词,都有“当……时”的意思。
when 可与一个点的时间或表示一段的时间连用,从句动词可以是短暂性或延续性动词;
while 只指一段时间,不能指一点时间。因此while从句中的谓语动词必须是延续性动词。
6.宾语从句
⑴引导词:that ——引导陈述句,在句中可省略;
if,whether ——引导一般疑问句,可相互替换(从句中出现or not时只能使用whether);
wh-,h- ——引导特殊疑问句。
注意:从句讲述的是客观真理时,不根据主句改变时态。
⑶语序:引导词后加陈述句语序
“主句+ 引导词+ 从句主语+ 从句谓语+ 其他”
7.直接引语和间接引语
直接引语变为间接引语时参照宾语从句的变法,把双引号内的句子变为宾语从句即可。以下是另需变化的两点 人称和所有格:“ 一主,二宾,三不变”
状语与动词
8.条件状语从句
条件状语从句由if或unless引导,表示如果有从句中的动作发生,就会有主句的动作发生。在条件状语从句中,主句是将来时、祈使句或含有情态动词的句子时,从句要使用一般现在时表达将来的意思(即:主将从现)。
if:如果
unless:除非= if… not…,….
Eg. We will have a meeting tomorrow if Mr. Gao doesn’t leave for Shanghai.
= We will have a meeting tomorrow unless Mr. Gao leaves for Shanghai.
9.现在完成进行时
(1) 结构:have/has + been + V.ing.
(2) 用法:表示从过去某一时刻开始,一直延续到现在且很有可能持续下去;
I’ve been doing the cleaning all this morning.
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yingyu
表示从过去开始一直持续到现在的某一动作刚刚结束;
You’re late again! I’ve been waiting here for an hour.
表示一个一直到说话时为止的一段时间内一再重复的动作。
I have been calling you several times in two days.
(3) 时间状语:all the time/this morning, since morning, all night,
this week/month, recently 等
(4)对现在完成进行时的时间状语进行提问时使用how long。
How long have you been skating?
I’ve been skating since I was seven years old.
10.现在完成进行时与现在完成时区别:
现在完成进行时侧重于动作的持续、运行;而现在完成时强调动作的完成。如:
I have written a letter to my father.(到现在信已写完)我给我的父亲写了一封信。
I have been writing a letter to my father.(一直在写,现在还在写)我一直在给我的父亲写信。
再看:I wrote a letter to my father. 我给我的父亲写过一封信。
Why don’t you get her a scarf?= Why not get her a scarf?为什么不给她买条围巾呢?
How/What about doing sth.? 做…怎么样呢?
How/What about + (a/an) + n.? …怎么样呢?
2. Would you mind (not) doing sth.? 你介不介意做(不做)…?
= Would/Could you please (not) do sth.? 请你做(不做)…好吗?
注意:7、8两个单元学习的几种礼貌的提出建议的方式要重点、综合复习。注意他们的搭配。
11.现在完成时
(1) 用法:动作到现在已经完成或刚刚完成; 过去发生或已完成的动作对现在造成的结果和影响;
过去开始一直持续到现在的动作或状态。
(2) 基本结构:have/has + V.过去分词
(3) 时间状语:already, yet, just, ever, never, once, twice, so far, ever since, for a long time, for + 一段时间, since + 过去
的时间点/过去时的从句,等。
(4) 注意事项:
A. 现在完成时是现在的时态,重点表达目前的结果和状态;
B. 表示动作从过去开始持续到现在用for + 时间段, since +点时间连用。对for与since短语提问用how long。
C. 现在完成时从不与when引起的疑问句联用。
D. have been to:去过…
have gone to:去了…
have been in:呆在…
E. 短暂性动词变为延续性动词:
buy --- have had borrow --- have kept
join --- have been in / have been a member of
become --- have been a member make friends --- have been friends
die --- have been dead get to know --- have known
come/go to do --- have done catch a cold --- have had a cold
begin/start to do --- have done
begin / start --- have been on
enter / come / arrive / get to / reach --- have been in/at
go / leave for / set off / set out --- have been away from
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