人教版-英语-七年级下Unit 6 语法时态解析

人教版英语七年级下Unit 6 I’m watching TV. 语法时态-现在进行时

—What are you doing? 你在做什么？ —I’m watching TV. 我在看电视。 关于现在进行时态：

1.一般定义：现在进行时表示现在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。

2.两个标志：有be ( am / is / are ) 动词v-ing

3.三种变化规律

（1）直接加ing：

do—doing draw—drawing

answer—answering read—reading

listen—listening fly—flying sing—singing

play—playing cook—cooking

（2）以不发音的字母e结尾的动词，去掉末尾的e再加ing：

write—writing dance—dancing

take—taking have—having

make—making ride—riding

（3）以一个辅音字母结尾的重读闭音节词，要双写最后一个辅音字母，再加ing： get-getting run-running swim-swimming sit-sitting put-putting

（4）以ie 为重读音节结尾的单词，先去掉e，把i 变为y，再加 –ing。 lie --- lying die --- dying

4.四种变化：现在进行时态的肯定式、否定式、疑问式及简略回答。

（1）肯定式：be＋v-ing She is singing in the next room.

（2）否定式：be＋not＋v-ing The students aren’t cleaning the room.

（3 be(am/ is/are)+ 主语+doing+其他成分 肯定答语Yes 否定答语No，主语＋be not。

Eg：Are you playing the computer game? Yes, I am. /No, I am not.

（4）特殊问句：

对谓语动词进行提问的：What＋be(am/ is/are) ＋主语＋doing＋其他？ What is the old man doing under the tree?

对其他成份进行提问的，疑问词＋一般疑问 Where is the boy swimming?

结合所学句型

What are you doing? I’m ......

What is he/she/it doing? He’s/She’s/It’s …

What are they doing? They are …

5.We are making model planes these day.目前我们在做飞机模型。

【注意】

1) 位移动词：go，come，leave，stay，start，begin

表示即将发生或安排好要做的事情。

Eg： 我们很快就要动身去伦敦了。 她明天要去那里。 我就来。

2) 还可以表示一个现阶段频繁发生的动作，常与always、forever等连用； Eg：He is always asking me the same question.他总是问我同一个问题。 但应注意下列这些动词一般不用于现在进行时态的句子中。

A、表示感觉的动词。如see，hear等。

B、表示喜欢或厌恶的动词。如like，love，hate等。

C、表示希望的动词。如want，would like等。

D、表示状态的动词。如be等。

E、表示归属的动词。如have等。

F、表示思维、知识或理解能力的动词。如know，think，forget等。 即时练习

一、写出下列动词的现在分词：

play________ run__________ swim _________make__________

go_________ like__________ write__________ski___________ read________ have_________ sing ________ dance_________

put_________ see________ buy _________ love____________

live_______ take_________ come ________ get_________

stop_________ sit ________ begin________ shop___________

二、用所给动词的适当形式填空

1. Mary and Lucy are ________ (dance) now.

2. Listen! Someone is _______ (play) the piano in the next room.

3. He is __________ (sweep) the floor at the moment.

4.

5.

6.

7.

8. Look ! The cat ________ ________ (eat) the fish on the table. A: ______ you _______ (study) French ? B: Yes , I am. She often ____________ (dance) after school. My father and mother ______ ______ (swim) in the pond. My sister is ________ (fly) a kite in the garden.

9. We are __________ (watch) TV now.

10. Be quiet ! The baby _____ ______ (sleep) now.

三、改错

1．We are cleanning our classroom.

______________________________

2．She is sing in the next room.

______________________________

3．What am you doing?

______________________________

4．Mary is comeing back from

Beijing.______________________________

5．He often flying kites on Sundays.

______________________________

6．They is reading books now.

______________________________

7．My brother is plays the guitar now.

_______________________________

8．Sally is danceing in the room.

_______________________________

9．I watching TV at home now.

________________________________

10．Do you listening the radio now?

________________________________

四、英汉互译

1.他正在教室里做作业。

______________________________________________

2.Peter 和Billy in the playground）打篮球。

______________________________________________

3.Look ! A bird is flying in the sky.

______________________________________________

4.on Sundays）看英语书。

______________________________________________

5.He isn’t playing games. He is studying.

______________________________________________

五、句型转换：

1. They are doing housework .(分别改成一般疑问句和否定句)

_________________________________________________________________

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2．The students are cleaning the classroom . ( 改一般疑问句并作肯定和否定回答)

_________________________________________________________________

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3．I’m playing the football in the playground .(对划线部分进行提问)

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4．Tom is reading books in his study . (对划线部分进行提问)

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