小学英语四种时态知识点加练习

小学英语四种时态知识点加练习

一、一般现在时

一. 意义：表示经常发生的事情，动作或存在的状态

二. 构成及变化

1.be动词的变化。

肯定句：主语+be(am,is,are)+其它。如：I am a boy.我是一个男孩。

否定句：主语+ be + not +其它。如：He is not a worker.他不是工人。

一般疑问句：Be +主语+其它。如：-Are you a student? -Yes. I am. / No, I'm not.

特殊疑问句：疑问词+一般疑问句。如：Where is my bike?

2. 行为动词的变化。

l、当主语为第一，二人称及复数时，助动词为do

肯定句：主语+动词原形(+其它)。如：We often play basketball after school.

否定句：主语+ don't+动词原形(+其它)。如：we don’t play basketball after school.

一般疑问句：Do +主语+动词原形+其它?

如：Do you often play basketball after school? Yes, we do. / No, we don't.

特殊疑问句：疑问词+以do开头的一般疑问句？

如：What do you often do after school ?

２、当主语为第三人称单数时,

助动词为does

肯定句：主语+动词三单式(+其它)。如：He swims well.

否定句：主语+ doesn’t+动词原形(+其它)。如：He doesn’t swim well..

一般疑问句：Does +主语+动词原形+其它。

如：Does he swim well ?

Yes, he does. / No, he doesn't.

特殊疑问句：疑问词+以does开头的一般疑问句？

如：How does your father go to work?

三．第三人称单数的动词变化规则（只有在第三人称为主语的肯定句中，动词才用三单式）

(1)多数动词直接加s: runs gets likes collets takes plays climbs…….

(2)结尾是s, x, sh, ch, o,前为辅音字母, 结尾加es :watches teaches goes does washes crosses mixes brushes

(3)动词末尾y前为辅音:将y改为i加es: study→studies fly→flies carry→carries cry→cries

但在y前如果为元音则直接加s:buys says

四．时间标志：always , usually , often , sometimes ,every…

一般现在时练习题

I.用下列单词的适当形式填空

1.We often___________(play) in the playground.

2.He _________(get) up at six o’clock.

3.__________you _________(brush) your teeth every morning?

4.What________________(do) he usually________________(do) after school?

5.Danny ________________(study) English, Chinese, maths, science and Art at school.

6.Mike sometimes __________(go) to the park with his sister.

7.At eight at night, she __________(watch) TV with his parents.

8.________ Mike________(read) English every day?

9.How many lessons_________your classmates________(have) on Monday?

10.What time_________his mother_________(do) the housework?

II.改句子

1.Do you often play football after school? (改为肯定句)

2.I have many books.（改为否定句）

3.Gao Shan’s sister likes playing table tennis （改为否定句）

4.She lives in a small town near New York.（改为一般疑问句）

5.I watch TV every day.（改为一般疑问句）

6.We have four lessons.（改为否定句）

7.Nancy doesn’t run fast （改为肯定句）

二、现在进行时

一、概念

现在进行时表示说话时正在进行或发生的动作,也可表示当前一段时间内的活动或现阶段正在进行的动作。结构：助动词be ( am / is / are ) +现在分词.

二、现在分词的构成：

1.大多数动词后可在动词后直接加-ing．

Eg: carry-carrying,catch-catching,drink-drinking, enjoy-enjoying hurry-hurrying ,do-doing , read-reading , think-thinking

2. 如果动词以-e结尾,则去掉-e,再加-ing,

如come-coming , have-having , make-making,ride-riding,write-writing,take-taking,use-using．

3. 如果动词只有一个元音字母,而其后跟有一个辅音字母时,将此辅音字母双写,再加-ing 如：hit-hitting,let-letting, put-putting,run-running,sit-sitting．

4. 如果动词有两个音节,且重音在第二个音节上,则末尾的辅音字母须双写,再加-ing, 如: forget-forgetting,prefer-preferring,upset-upsetting．试比较benefit/benfiting, differ/differing,profit/profiting,这些词的重音在第一个音节上,因此其末尾的辅音字母不双写．

5. 以-ic 结尾的动词,应先把-ic 变为-ick,再加-ing,eg: panic/panicking,picnic/picnicking,

但lie/lying ,die/dying,tie/tying是特殊变化要记住．

三、句型结构：

1.现在进行时的肯定形式、否定形式、疑问形式及其回答,所有变化都体现在助动词be ( is / am / are ) 上．

1)现在进行时的肯定形式：主语+be(am/ is/are)+doing+其他成分

I am singing . They are writing .

2)现在进行时的否定形式:主语+be(am/ is/are)+not +doing+其他成分

I am not singing . They aren’t writing .

3）一般疑问句及回答：be(am/ is/are)+ 主语+doing+其他成分

Am I singing ? Yes ,you are . / No ,you aren’t .

Are they writing ? Yes ,they are . / No ,they aren’t .

4)特殊疑问句及回答:特殊疑问词+be(am/ is/are)+主语+doing+其他成分

What are you doing ? We are playing (要求就提问内容具体回答).

2. 缩写形式如下: