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一般现在时态讲解及练习(精简版,错题版)

一般现在时态讲解及练习(精简版,错题版)
一般现在时态讲解及练习(精简版,错题版)

一般现在时的用法

1)表示经常性、习惯性的动作或存在的状态。通常与副词sometimes, often, usually, always, every

day (year, month ), once (twice, three times) a day,等等频率畐寸词(时间状语)连用。

.They usually go to school by bike.

I take the medici ne three times a day. 实义动词表示“动作”

She helps her mother once a week.

Mary' s father is a policema n.

There are 50 stude nts in my class. Be 动词表示“状态”

He is very busy now.

be、do不能放一起,如果非要放一起,do后要加ing,变成现在进行时。

2)表示主语的特征、性格、爱好等。

.I work hard.

I like watching TV.

3)表示客观真理

.There are seve n days in a week.

The moon moves round the earth.

The sun rises in the east and sets in the west every day.

Tomorrow is Tuesday.

一般现在时的句子转换:

三、一般现在时的结构:主语+谓语+其它”,有时为了起强调作用,时间状语也可提前.

三单变化:

1)多数在动词后+ s:

play —plays like —likes ask---asks work-works get---gets stay-stays

2)以字母s, x, ch, sh或o结尾的动词,+-es:

watch---watches wish---wishes fix---fixes do---does go---goes pass---passes 3)以辅音字母加-y”结尾的动词,要先变y为i+-es.

try---tries study-studies cry---cries fly---flies 不规贝U变化:be---- is are have----has

做题时常见错误如下:

1)、be 动词与行为动词同时出现在句子中

例:We are plant (plant) the trees in spring. 答案:plant

2)、单三人称形式易出错

例: 1 He plaies (play) football very well.

2 Danny gos (go) to school at 7:10.

答案:1 plays 2 goes

解析:1以辅音字母加y结尾的动词变单三人称形式才能把y换成i再加es;

2 与名词变复数不同,变单三人称形式以o 结尾的词要加es.

3)、在句式变换时易出错

例: 1 Does Jenny has (has) a good friend

2 Brian doesn 't lives (not live) in China.

答案: 1 Does have 2 doesn 't live

解析:口诀:“见助动,用原形”。此口诀用于一般过去时态中。. He didn't go home yesterday.

4)、对do 的理解易出错

例:We don't (not do) our homework in the afternoon.

答案:don't do

解析:do 是一个比较难理解的词,它有三个含义:

a)是所有行为动词的总称;b)是助动词,无实义;c)是一个具体的行为动词做,干” 此句中给出的do 指做,干” not指把此句变为否定句,故须在do前加助动词don'。

5)、对主语的数判断有误

例:Li Ming with me are (be) in Beijing.

答案: is

解析:表面一看是“我和李明两个人在北京”,但with 在此做伴随状语,不能做主语,故用is.

一般现在时态讲解与练习[1]

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