内容正文:
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12
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课题
2023年广州中考时态
教学重点
短语,课文考点,单元语法
教学难点
课文,句型分析
知识点一:时态
be(“是/存在”)动词的各种时态变化:
一 般 现 在 时
一 般 将 来 时
现 在 完 成 时
I am….
You are.…
He/She/It is….
We/You/They are….
(I等各人称) will be….
I am
He/She/It is going to be…
We/You/They are
I have been….
You have been….
She/he/It has been….
We/You/They have been...
一 般 过 去 时
过 去 将 来 时
过 去 完 成 时
I was….
You were.…
He/She/It was….
We/You/They were….
(I等各人称) would be….
I was
He/She/It was going to be…
We/You/They were
I had been….
You had been….
She/he/It had been….
We/You/They had been...
现在时态
一 般 现 在 时
现 在 进 行 时
一 般 将 来 时
现 在 完 成 时
谓语动词构成
动词用原形(单三加s / es)
(问句和否定句借用助词do / does)
am
is +动词-ing
are
will + 动词原形
am
is +going to+动词原形
are
have +过去分词
has
过去时态
一 般 过 去 时
过 去 进 行 时
过 去 将 来 时
过 去 完 成 时
谓语动词构成
动词用过去式
(问句和否定句借用助词did)
was
+动词-ing
were
would + 动词原形
was +going to+动词原形
were
had +过去分词
其它谓语动词(主动语态)的时态变化一览表:
注意:句型变化时,
否定句在am /is /are /will /have /has /was /were /had /would 后面加not,而且not都可以缩写为n’t (am后面not不可以缩写);
疑问句将am /is /are /will /have /has /was /were /had /would 提前到句首。
时态的具体用法:
(1) 一般现在时:表示现阶段经常或习惯发生的动作或存在的状态,或说明主语的特征。
① 一般现在时句子中常有的时间状语:often,usually,sometimes,always,every (day等), once/twice,a (week等), on (Sunday等),never,in the (morning等)。
如:They go to the Palace Museum once a year.(他们每年去一次故宫)/
They often discuss business in the evening.(他们经常在晚上商谈生意)
② 表示客观真理、事实、人的技能或现在的状态时句子里一般不用时间状语。
如:The earth turns round the sun.(地球绕着太阳转)
Light travels faster than sound.(光传播比声音快)
③ 表示十分确定会发生(如安排好的事情)或按照时间表进行的事情,用一般现在可以表达将来,句子中可以有将来时间。
如:The train for Haikou leaves at 8:00 in the morning.(开往海口的列车上午8点开车)
④ 在时间状语从句中(以when, after, before, while, until, as soon as等引导)和条件状语从句中(以if,unless引导),用一般现在时代替一般将来时,句子可以有将来时间。
如:Please ring me up as soon as you arrive in Germany.(你一到德国就给我打电话)
If it rains tomorrow,we will have to stay at home.(如果明天下雨我们就只好呆在家)
⑤ 一般现在时用于倒装句中可以表示正在发生的动作,动词以come, go为主。
如:Here comes the bus. (车来了)
There