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七年级英语下册Module 2 Unit 4 Save the trees.(Grammar)

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《Man's best friends》Unit 4 Save the trees.(Grammar)
1.Grammar

The present continuous tense
1.We use the present continuous tense to show that something is happening now.
2.We also use the present continuous tense to talk abotemporary situations.ut
It is often used with:
now,at the moment,right now,look,listen
eg:
We are stay at Peter's house now.
The students are listening to Miss Li carefully.
Is Linda doing her homework at home right now?
What are you doing at the moment?
Listen,the singer is singing on the stage.
Look,Michael is playing the guitar.
Why is he crying?
3.现在进行时还表示当前一段时间或现阶段正在进行(但说话时不一定在进行)的动作。常与this week,these days等时间状语连用。
eg:
We are planting trees this week.
The students are working hard these days.
We are making model planes these days.
4.描述图片中的人物的动作,也为了表达更生动,此时也常用现在进行时。
eg:
Look at the picture,the children are flying kites in the park.

This is the structure of a sentence in the present continuous tense.
Present Continuous
am-is-are
verb
-ing
I am eating now.
What are they doing?
What is she doing?
What's he doing? He is...
dancing
dance→dancing
What's the girl doing?She is ...
skating
skate→skating
What are they doing?they are...
running
run→running
现在进行时的构成
肯定句:主语+be(is/am/are)+现在分词
否定句:主语+be(is/am/are)+not+现在分词
一般疑问句:be(is/am/are)+主语+现在分词
特殊疑问词:特殊疑问句+be(is/am/are)+主语+现在分词
We form the present continuous tense with the verb to be +the -ing form of the main verb.
We form the-ing form of the main verb like this:

 Main verb   -ing form  Example
 Most verbs   +ing   feel→feeling
 Verbs ending in -e  e+ing   write→writing
 Verbs ending in -ie  ie+ying  die→dying
 Some verbs enging in a vowe!  Double the cosonant  run→running
 letter+a consonant letter    letter+ing  

写出下列动词的现在分词形式
read--reading         play--playing
dance--dancing        write--writing
sit--sitting          get--getting
have--having          eat--eating
look--looking         carry--carrying
begin--beginning      put--putting
lie--lying

Look at them carefully!
What's he/she doing? He/she is...
walking     drawing     dancing     eating
What are they doing?
They are reading books in a bookshop.
What are you doing?
We are buying some food in a supermarket.
Tom is playing football.
Lucy read a book.

Grammar exercise
A Katie is on holiday with her friends.She is telling Alex what everyone is doing.Look at the picture below and complete hte conversation with the verb in brackets.
Katie:Hi,Alex.We _______ (have)fun at the beach.
Alex:What _____everyone _____(do)?
Katie:Ted________(play)volleyball with Carol.Jenny and Henry_____(play)badminton.
Grace ________(fish).Ivan ______(swim)in the sea.Laura and Johnny ______      (lie) on the beach.Laura _____(eat) an ice cream too.Jim _______(play) the       guitar.And I _______(talk) to you on the phone.Alex.
We do not usually use the verbs in the box below in the present contiuous tense.Instead,we use them in the simple present tense.
believe     hear       like       prefer       smell        understand
hate        know       love       see          taste        want
I know the answer now.(√)
I am knowing the answer now.(×)
She likes this poem.(√)
She is liking this poem.(×)

Grammar exercise
Look at the pictures below and complete the conversations with the verbs in brackets.
Mum:The phone_______(ring),Sam.
Sam:I ______(know),but I'm very busy,Could you answer it,please?
Mary:I _____(think)about what to weat to jane's birthday party tonight.Can you      help me?
Ann:Sure,I ______(prefer) the long dress.
Fred:That ________(smell)very nice.What ___ you ______(eat),Tom?
Tom:I ________(eat)some cake._______you _____(want) some?
有些动词从结构来看是现在进行时,但却是表示将要发生的事,而不表示动作现在正在进行。这些动词往往是一些表示位置移动变化的动词,
如:go,some,leave,fly,move,begin,arrive,stay,return等。
Next month my family is moving to Beijing.
下个月,我家就要搬到北京去了。(搬的动作并非现在发生,而将在下个月发生。)
My aunt is leaving for Shanghai at eleven o'clock tomorrow morning.
明天早上十一点我婶婶将离开去上海。

在实际运用时,现在进行时常用以下几种情况:
(1)当句子中有now,at the resent,at the moment(现在)时,常表示动作正在进行,或者告诉你一个准确的现在时间,这时要用现在进行时。如:
They are playing basketball now.现在他们正在打篮球。
(2)以look,listen等暗示性词语开头的句子,提示我们动作正进行,这是要用现在进行时。如:
Listen!She is singing an English song.听,她正在唱英语歌。
(3)当局中出现的时间状语是today,these days,this week,this month等时,如果句子所要表达的意义是在这一阶段正在翻身的事,则动词应用现在进行时。如:
We are making model planes these day.这些天我们在做飞机模型。
(4)描述图片中的人物的动作,也为了表达更生动。此时也常用现在进行时,如:
Look at the picture.The children are flying kites in the park.
看这幅图,那些孩子正在公园放风筝。
(5)在口语中表示主语计划将要作的动作。
They are leaving for New York tomorrow.明天他们将要动身前往纽约。
Is your brohter departing soon? 你的兄弟很快就要启程吗?
这类情况常与come来,go去,leave离开,depart离开,arrive到达,stay逗留,start开始等动词连用。所用的动词必须是动作而不是状态,主语必须是人。

Homework
1.完成下列汉译英。
琳达的哥哥现在正在卧室里看电视。
你此刻在干什么呢?
他们正在教室里学习吗?
现在他们不在打篮球。
你知道这个问题的答案吗?
那块蛋糕闻着特别香。
2.复习今天所学的内容,掌握现在进行时的用法,完成《练习册》Grammar部分的练习。

此内容正在抓紧时间编辑中,请耐心等待

周老师

女,中教中级职称

英语专业八级,优秀教师,在教学工作中,善用现代教育技术手段辅助教学,以提高课堂教学效率,教学成绩突出。

七年级英语下册Module 2 Unit 4 Save the trees.(Writing,More practice, Culture cornner)

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七年级英语下册Module 2 Unit 4 Save the trees.(Grammar)

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