【新课标】Unit 4 Save the trees 第3课时Grammar课件

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Unit 4 Save the trees
Period 3 Grammar
牛津深圳·广州版 七年级下
Understand the structure and usage of the present continuous tense.
Master the change rules of the present participle of verbs.
Be able to use the present continuous tense to describe what is going on or happening.
Learning objects
Today is Trees-planting Day. Look! What are the students doing now Complete the four sentences below.
Lead in
They ____________
(dig) a hole.
are digging
Lead in
They __________(put)
the little tree into the pit.
Lead in
are putting
The boy
____________(put) the soil back to the hole and the girl __________ (take) some water.
is putting
Lead in
is taking
Lead in
They _____________
(water) the tree.
are watering
They
____________ (cheer)
for their planting.
are cheering
Lead in
are digging are putting is putting is taking are watering are cheering
What are these
Lead in
are
They are the present continuous tense.
Presentation
The present continuous tense
We use the present continuous tense to show that something is happening now.
The children are playing in the park.
We also use the present continuous tense to talk about temporary situations.
We are staying at Peter’s house at the moment.
We form the present continuous tense like this:
Subject Verb to be Main verb
I am (not) dreaming
You/We/They are (not) He/She/It is (not) Presentation
We form Yes/No questions and short answers in
the present continuous tense like this:
Am I reading Yes, I am.
No, I am not/’m not.
Are you/we/they reading Yes, you/we/they are.
No, you/we/they are not/aren’t/’re not.
Is he/she/it reading Yes, he/she/it is.
No, he/she/it is not /isn’t/’s not.
Presentation
We form Wh-questions in the present continuous tense like this:
What are you doing now
Why is he sleeping here
Presentation
Work out the rule:
We form the present continuous tense with the verb to be + (the base form/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 去e+ing write →writing
Verbs ending in -ie 去ie+ying die →dying
Some verbs ending in a vowel letter + a consonant letter Double the consonant letter + ing run →running
Presentation
A. Katie is on holiday with her friends. She is telling
Alex what everyone is doing. Look at the picture below and complete the conversation with the verbs in brackets.
Have a go
Katie: Hi, Alex.We (1) are having (have) fun at the beach.
Alex: What (2) ________ everyone ________(do)
Katie: Ted (3) __________ (play) volleyball with Carol. Jenny and Henry (4)____________(play) badminton. Grace (5) _________ (fish). Ivan (6) ______________ (swim) in the sea. Laura and Johnny (7)__________(lie) on the beach. Laura (8) ________ (eat) an ice cream too. Jim (9) __________(play) the guitar. And I (10) ___________ (talk) to you on the phone, Alex.
is doing
is playing
are playing
is fishing
is swimming
are lying
is eating
is playing
am talking
Have a go
We do not usually use the verbs in the box below in the present continuous 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.
下面的动词一般没有现在进行时态，我们用一般现在时作为替代。
Presentation
Mum: The phone __________(ring), Sam.
Sam: I________(know), but I’m very busy. Could you answer it, please
is ringing
know
Have a go
B. Look at the pictures below and complete the conversations with the verbs in brackets.
Mary: I ___________ (think) about what to wear to Jane’s birthday party tonight. Can you help me
Ann: Sure. I ________ (prefer) the long dress better.
am thinking
prefer
Have a go
Fred: That ________ (smell) very nice. What ____ you _______(eat), Tom
Tom: I _________(eat) some cake. _____you_______(want) some
smells
am eating
are
eating
Do
want
Have a go
1. 现在进行时的定义
①现在进行时态表示现在(说话瞬间)正在进行或发生的动作。
The students are listening to the teacher.
He is watching TV now.
②现在进行时态还可以表示当前一段时间内的活动或现阶段正在发生的事情。
We are working on a farm these days.
I am writing a book this month.
Summary
2. 现在进行时的谓语结构
be + 现在分词(V-ing)
Summary
3. 现在进行时的句式
①肯定句: 主语+am/is/are+V-ing +其它.
I am reading a book in the library.
②否定句：直接在am/is/are后加not
I am writing.
I am not writing.
③一般疑问句及回答: 问句,直接把am/is/are提句首, 若原句有第一人称，把第一人称变成第二人称。
Summary
肯定回答:Yes, 主语 + be (be是要变化的，即am/is/are).
否定回答: No, 主语+ be + not.
You are drawing a pig.
--- Are you drawing a pig
--- Yes, I am. / No, I’m not.
特殊疑问句：
对be + V-ing 提问要用what.
格式为：What + am / is / are +主语+doing
Summary
4. 与现在进行时连用的时间状语：
at present 目前;现在
at the moment 此刻,现在
right now 此刻,现在;立刻,马上
now 现在
注意提示词：look & listen
Summary
现在分词的构成方式
主要动词 现在分词 例子
大多数动词 +ing feel→feeling
以-e结尾的动词 去e+ing write →writing
以-ie结尾的动词 去ie+ying die →dying
一些以一个元音字母+一个辅音字母结尾的动词 双写这个辅音字母+ing run →running
Summary
1. It is ______ (snow). Let’s make snowmen.
2. They want to buy many ___________ (interest) books.
3. The Greens come from Germany. They are ________ (friend) .
4. The song sounds ____________(beauty)
5. It is exciting ________ (see) a film with my friends.
6. It is __________ (importance) for us to save water.
7. It is dangerous ________ (drive) a car at night without any lights.
8. It is kind of you ________(help) me with English.
Exercise
一、用括号内单词的适当形式填空。
snowy
interesting
friendly
beautiful
to see
important
to drive
to help
1. The boy _________(draw) a picture now.
2. Listen! Some boys __________ (sing) in the classroom.
3. My mother ________ (make) a cake at the moment.
4. What ________ you ________ (do) now
5. Look! They __________ (have) an English lesson.
6. They _______________ (not, water) the flowers now.
7. Look! The girls ___________ (dance) in the classroom.
8. — What is our grandma doing
— She __________ (listen) to music.
is drawing
are singing
is making
are doing
Exercise
一、用括号内单词的适当形式填空。
are having
are not watering
are dancing
is listening
1. --- What are you doing --- I_________
A. eat B. can eat C. eating D. am eating
2. We want _________this book now.
A. reading B. am reading C. read D. to read
3. Our teacher is ________a red sweater .
A. putting on B. put on
C. wearing D. wear
4. That boy isn’t ____ the teacher .
A. listen B. listens
C. listening D. listening to
D
D
C
D
Exercise
二、选择填空。
5. It’s eight o’clock. Jim’s family _____ TV.
A. is watching B. are watching
C. watch D. to watch
6. My mother is ______ a cake ______ my birthday.
A. making ,to B. making ,for
C. doing ,to D. doing ,for
7. Let me ______ these books in the box.
A. puts B. put C. to put D. putting
8. _____ you ______the window —Yes, I am.
A. Do, clean B. Is, cleaning
C. Are, cleaning D. Do, cleaning
B
B
B
C
Exercise
Homework
Finish Grammar exercise paper.
There are green,
where there is life.
那里有绿色，哪里就有生命。
Reflection
谢谢
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