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七年級英語下冊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.現在進行時還表示當前一段時間或現階段正在進行(但說話時不一定在進行)的動作。常與this week,these days等時間狀語連用。
eg:
We are planting trees this week.
The students are working hard these days.
We are making model planes these days.
4.描述圖片中的人物的動作,也為了表達更生動,此時也常用現在進行時。
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
現在進行時的構成
肯定句:主語+be(is/am/are)+現在分詞
否定句:主語+be(is/am/are)+not+現在分詞
一般疑問句:be(is/am/are)+主語+現在分詞
特殊疑問詞:特殊疑問句+be(is/am/are)+主語+現在分詞
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  

寫出下列動詞的現在分詞形式
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?
有些動詞從結構來看是現在進行時,但卻是表示將要發生的事,而不表示動作現在正在進行。這些動詞往往是一些表示位置移動變化的動詞,
如:go,some,leave,fly,move,begin,arrive,stay,return等。
Next month my family is moving to Beijing.
下個月,我家就要搬到北京去了。(搬的動作并非現在發生,而將在下個月發生。)
My aunt is leaving for Shanghai at eleven o'clock tomorrow morning.
明天早上十一點我嬸嬸將離開去上海。

在實際運用時,現在進行時常用以下幾種情況:
(1)當句子中有now,at the resent,at the moment(現在)時,常表示動作正在進行,或者告訴你一個準確的現在時間,這時要用現在進行時。如:
They are playing basketball now.現在他們正在打籃球。
(2)以look,listen等暗示性詞語開頭的句子,提示我們動作正進行,這是要用現在進行時。如:
Listen!She is singing an English song.聽,她正在唱英語歌。
(3)當局中出現的時間狀語是today,these days,this week,this month等時,如果句子所要表達的意義是在這一階段正在翻身的事,則動詞應用現在進行時。如:
We are making model planes these day.這些天我們在做飛機模型。
(4)描述圖片中的人物的動作,也為了表達更生動。此時也常用現在進行時,如:
Look at the picture.The children are flying kites in the park.
看這幅圖,那些孩子正在公園放風箏。
(5)在口語中表示主語計劃將要作的動作。
They are leaving for New York tomorrow.明天他們將要動身前往紐約。
Is your brohter departing soon? 你的兄弟很快就要啟程嗎?
這類情況常與come來,go去,leave離開,depart離開,arrive到達,stay逗留,start開始等動詞連用。所用的動詞必須是動作而不是狀態,主語必須是人。

Homework
1.完成下列漢譯英。
琳達的哥哥現在正在臥室里看電視。
你此刻在干什么呢?
他們正在教室里學習嗎?
現在他們不在打籃球。
你知道這個問題的答案嗎?
那塊蛋糕聞著特別香。
2.復習今天所學的內容,掌握現在進行時的用法,完成《練習冊》Grammar部分的練習。

此內容正在抓緊時間編輯中,請耐心等待

周老師

女,中教中級職稱

英語專業八級,優秀教師,在教學工作中,善用現代教育技術手段輔助教學,以提高課堂教學效率,教學成績突出。

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