仁爱英语七年级上册一般现在时

一般现在时

一般现在时的特征：

1.表示事物或人物的特征、状态。如：The sky is blue.天空是蓝色的。

2.表示经常性或习惯性的动作。如：I get up at six every day.我每天六点起床。

3.表示客观现实。如：The earth goes around the sun.地球绕着太阳转。

一、如何判断句子中的主语是单数第三人称？

句子中的主语S可以归纳以下三类：

S主语（第三人称）

单个名字He\ She\ It （如Tina、

your friend\ the dog\

a cat\ the tall tree等等）

二、当句子中的主语S是单数第三人称时，动词单数第三人称形式的变形规律如下：

1.大部分的动词+s , 如run→run s, swim→swim s, hop→hop s等

2.以ch, sh, o, x, s结尾的动词，必须+ es

如：wash→wash es,

teach→teach es, watch→watch es, c atch→catch es

do→do es, go→go es

以X, S结尾的动词比较少，只要记住此概念即可。

3.以y结尾的动词，有两种情况

a.动词以y结尾，并且在y字母旁边含有a,e,i,o,u其中一个字母，动词直接+s

如：play→play s (动词中y旁边有a字母)

sway→sway s

b.动词以y结尾，并且在y字母旁边不含有a,e,i,o,u其中一个字母，动词必须

去掉y+ies

如：fly→fl ies, cry→cr ies, (动词中不含有元音字母)

study→stud ies（动词中含有u, 但是不在y的旁边，必须去y+ies）

三、如何把陈述句改为一般疑问句？可以按照以下步骤：

1. 在陈述句中寻找is\am\are\can\will这几个单词

I am a good student.

He is a tall boy.

They are cute flowers.

I can run very fast.

She will go to the park.

2.若句子中出现以上几个单词，就直接把这几个单词放到句子的最前面，后面

句子照抄，注意大小写字母的变化，并把句点改为问号。

I am a good student. →→→→Am I a good student? \ Are you a good student?

(I am 是特殊的，通常用Are you…?进行提问)

He is a tall boy. →→→→ Is he a tall boy?

They are cute flowers. →→→→ Are they cute flowers?

I can run very fast. →→→→ Can you run very fast?

(句子中出现I，都要改成you)

She will go to the park. →→→→ Will she go to the park?

3.若句子中没有出现以上几个单词，就考虑用do\ does来进行提问，放在句子

的最前面。

a. 当句子的主语不是单数第三人称时，用do来提问，后面句子照抄，句子中的I 变成you

I like to eat apples. →→→→ Do you like to eat apples?

They have five cats? →→→→ Do they hav e five cats?

句子中主语I \ they 都不是单数第三人称，所以用do提问，放在句子最前面，有I 的地方改成you, 其他不变。

b.当句子的主语是单数第三人称时，用does来提问，后面句子照抄，但是注意动词必须改为原形。

He likes to eat pizza. →→→→Does he like to eat pizza?

The bird flies in the sky. →→→→Does the bird fly in the sky?

His daddy plays balls with his friends. →→→→Does his daddy play balls with his friends?

句子中主语He \ The bird\ His daddy 都是单数第三人称，所以用does提问，放在句子最前面，动词必须改为原形。

一、写出下列动词的第三人称单数形式。(讨论第三人称单数形式的变化规则) Model: clean cleans

1) watch __________ 2) have __________

3) cook_________ 4) go __________

5) fly _________ 6) make _________

7) swim_________ 8) draw_________

9）ride_________ 10) play_________

二．用动词的正确形式填空。

1.We often___________(play) in the playgound.

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

3.__________(do) you _________(brush) your teeth every morning?

4.What__________(do) he usually_________(do) after school?

5. Donny often __________(study)English at night.

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

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

8. ________ (do) Mike________(read) English every day?

9. Sally often_______(go) on foot.