2022年备战初中必备语法——一般现在时+使用技巧方法
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一般现在时的构成
1.含 be 动词的一般现在时
肯定:主语 +be ( am/is/are)+ 其它
否定:主语 +be ( am/is/are) not+ 其它
一般疑问句:Be ( Am/Is/Are)+ 主语 + 其它?
特殊疑问句:特殊疑问词 +be( am/is/are)+ 主语+其它?
She is a teacher. She isn’t a teacher.
— Is she a teacher?
— Yes, she is./ No, she isn’t.
2.含实义动词的一般现在时
肯定:主语 + 实意动词原形 / 单三 + 其它
否定:主语 +don't/doesn't+ 动词原形 + 其它
一般疑问句:Do/Does+主语+动词原形+其它?
特殊疑问句:特殊疑问词 +do/does+主语 + 动词原形 + 其它?
Helen works hard.
Helen doesn't work hard.
— Does Helen work hard?
— Yes, she does./No, she doesn't.
How does Helen work?
注意:在一般现在时的结构中,动词的形式由主语的单复数决定。主语是第一人称或复数时,谓语动词用其原形;主语是第三人称单数时,谓语动词用单三形式。现将动词单三的规则变化及其读音总结如下:
一般现在时的用法
1.表示经常性或习惯性的动作,常与表示频度的时间状语连用。如:
My grandparents always take a walk in the park after supper.
2.表示客观真理、客观存在以及科学事实。
The speed of light is faster than the speed of sound.
光速比声速快。
- 用在表示格言或警句中。
- Where there is a will, there is a way.
- 有志者事竟成。
- 4.表示现在时刻的状态、能力、性格、个性等。
- They don’t speak English. They speak French.
一般现在时的时间状语
1.频度副词:
always, often, usually, sometimes, seldom, never 等
He seldom eats out. He likes cooking at home.2.表频率的短语:
once a day, twice a week, three,times a month 等 My father plays basketball twice a week.
3.有关 every 的:
every day, every week, every month 等
To keep healthy, James eats vegetables every day.
一般现在时代替其他时态
1.一般现在时表将来
(1)动词 come,go,arrive,leave,start,begin,return,stop 等用一般现在时表将来。这主要表示在时间上已确定或安排好的事情。例如:
The movie starts at six o’clock and ends at 8 o’clock.
(2)在由 when,after,before,as soon as 引导的时间状语从句或由 if 引导的条件状语从句中,用一般现在时表将来。例如:
As soon as she arrives, she will give you a surprise.
If it is sunny tomorrow, we’ll go out.
(3)在动词hope, take, care that, make sure that 等后用一般现在时表将来。例如:
I make sure that you can do well next time.
2.一般现在时代替过去时态
在新闻标题、历史简介、小说章节标题或小说、电影、戏剧情节介绍和幻灯片、图片的说明中,常用一般现在时。例如:
The chairman arrives for the opening ceremony.
3.一般现在时代替现在进行时在 there 和 here 引起的句子中,常可用一般现在时态代替现在进行时。
例如:Look! Here comes the bus.
4.一般现在时代替现在完成时
(1)在 hear,forget,understand,learn,tell,say 等表示“已知;已忘等”的动词中,用一般现在时代替现在完成时。
例如:I hear (have heard) that they will move to Beijing.
(2)用句型“It is...since...”代替“It has been...since...”。
例如:It is (=has been) two years since we met last time

