资源简介

(共44张PPT)
Grammar
Key question
Why do we need trees
Unit 3 Trees and us
主题范畴：人与自然
Why do we plant trees
Tip: Pay attention to the words in bold.
We use the present continuous to show that something is happening now.
我们用现在进行时表明现在正在发生的事情。
1. 现在进行时的定义
( The present continuous tense)
①表示现在(说话瞬间)正在进行或发生的动作。
如：
The students are listening to the teacher.
He is watching TV now.
②表示当前一段时间内的活动或现阶段正在发生的事情。如:
We are working on a farm these days.
I am writing a book this month.
am /is /are + v-ing
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
wait ________
drive ________
sit ________
lie ________
waiting
driving
sitting
lying
fight ________
save ________
run ________
tie ________
fighting
saving
running
tying
一般情况直接加
以e结尾去e加
辅元辅双写加
ie结尾改y加
Exercise
I
She
He
The boy
They
The girls
be
be
be
be
be
be
am
is
is
is
are
are
sing
wash
does
reads
does
watch
TV.
homework.
books.
exercise.
the dishes.
in the room.
ing
ing
ing
ing
ing
ing
请找找规律：
现在进行时标志词：
now
look
listen
2、现在进行时的谓语结构
be + 现在分词 (V-ing)
3、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
at this time 这时候
right now 此刻,现在;立刻,马上
now 现在
these days 这些天
提示语: look, listen
注意
我们通常不将一些动词用于现在进行时。相反，我们会把它们用于一般现在时。
I know the answer now.
I am knowing the answer now.
She is liking this poem.
She likes this poem.




I
She
He
The boy
They
The girls
am
watching TV.
is
is
is
are
are
doing homework.
reading books.
doing exercise.
washing the dishes.
cleaning the room.






请找找规律：怎样变否定句和一般疑问句？
not
not
not
not
not
not
Are you
4、现在进行时的句式
1. 肯定句: 主语+am/is/are+V-ing +其它.
如: I am reading a book in the library.
2. 否定句：直接在am/is/are后加not
如：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。
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.
I am drawing a pig.(变一般疑问句，再作肯定回答和否定回答）
---Are you drawing a pig
---Yes, I am. / No, I’m not.
特殊疑问句：
特殊疑问词+ am/is/are +主语+V-ing ...
What are you drawing
小结：
P136
肯/否定句
一般疑问句
一般疑问句回答
特殊疑问句
句型转换
1.The girl is dancing in the room. （改为否定句）
The girl ______ ______ in the room.
2.I am reading a book. （改为一般疑问句）
______ ______ ______ a book
3.Are they playing football （做肯定回答）
______, ______ ______.
4.Is she singing a song （做否定回答）
______, ______ ______.
5.My mother is cooking in the kitchen. （就划线部分提问）
______ ______ your mother ______ in the kitchen
isn't dancing
Are you reading
Yes they are
No she isn't
What is doing
Exercise
根据题目要求，完成下列句子。
1. They are doing the housework now.
(分别改成一般疑问句和否定句)
Are they doing the housework now
They aren’t doing the housework now.
2. Tom is reading books in his room.(改为特殊疑问句)
Where is Tom reading books
3. The students are cleaning the classroom.
(改为一般疑问句并作肯定和否定回答)
Are the students cleaning the classroom
Yes, they are. No, they aren’t.
4. I’m playing football in the playground.
(改为否定句和特殊疑问句)
I’m not playing football in the playground.
What are you doing in the playground
are eating
am feeling/feel
is moving
is waiting
P42
is eating
is
is enjoying
giving
现在进行时 VS 一般现在时
现在进行时：强调此刻或现阶段正在进行的动作，
一般现在时：强调动作的经常和反复，或属于主语本身具有的特征，实际上这类动作没有时间性。
例如 :
Jennifer is reading a book now.
Jennifer reads books every night.
are doing
P136
am reading
love
borrow
think
am reading
ask
Complete the sentences with the correct form of the words in brackets.
Please be quiet. The kids ____________ (sleep) now.
Look, the boy ___________ (run) fast.
3.— ________ the students _________(read) an article in English
—Yes, they are.
4.Tom ____________ (not study) English. He is studying Chinese.
5.The monkey ____________ (not eat) bananas now.
6.—Where ____________ they ___________ (stand)
—They are standing over there.
7.—What is Meimei doing now
—She ______________ (watch) TV with her parents.
are sleeping
is running
reading
isn’t studying
isn’t eating
are
standing
is watching
Are
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
B 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
is ringing
know
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
Fred: That ________ (smell) very nice. What ____ you _______(eat), Tom
Tom: I _________(eat) some cake. _____you_______(want) some
smells
am eating
are
eating
Do
want
瞬间动词的用法
一般说来，瞬间动词不能用现在进行时表达，但是像 come，go，leave, arrive，start，fly 等瞬间动词用现在进行时表达时常与表示将来时的时间状语连用，表示将要发生的动作。例如 :
They are leaving for Australia tomorrow afternoon.
I am coming, Mum!
知 识 回 顾
现在进行时
More Exercise
is taking
is singing
Are cleaning
is reading
prefers
B
C
D
A
B
B
C
D
A
B
is playing the guitar
are cutting down
are celebrating
is taking photos
do do / play
D
B
A
C
B
C
Summary
In this class, we have learned
how to what the present continuous tense is.
the structure of the present continuous tense.
the usage of the present continuous tense.
Self-assessment
How well do you know about this lesson Tick the boxes.
① I can use the present continuous tense correctly.口 口 口
② I can form Yes/No questions in the the present continuous tense correctly. 口 口 口
③ I can form Wh-questions in the the present continuous tense correctly. 口 口 口
https://www.21cnjy.com/help/help_extract.php
让备课更有效
www.21cnjy.com
Thanks!

展开更多......

收起↑