Unit 4 Where's my schoolbag Section A 3a-3c课件(共23张PPT)

(共23张PPT)
Unit 4 Where's my schoolbag
Section A 3a-3c
Learning Objectives
learn to describe the positions of things
learn the usage of prepositions on, in, under
Revision
—Where is the computer
—It’s on the desk.
Look at the picture and try to ask and answer questions.
—Where’s the dog
—It’s under the chair.
—Where are the books
—They’re in the bookcase.
Presentation
Where’s the map It’s in your grandparents’ room.
Where are my books They’re on the sofa.
Where’s his pencil box It’s in his schoolbag.
Where’s your ruler It’s under the chair.
Where are their keys They’re on the table.
where引导的特殊疑问句
(1)结构
①Where＋is＋主语(单数可数名词/不可数名词)
②Where＋are＋主语(复数可数名词)
where后的be动词是用is还是用are，取决于be动词后面的主语的单复数。主语是单数可数名词或不可数名词，be动词用is；主语是复数可数名词，be动词用are。如：
Where is his ruler 他的尺子在哪里？
Where are my erasers 我的橡皮在哪里？
Presentation
Where’s the map It’s in your grandparents’ room.
Where are my books They’re on the sofa.
Where’s his pencil box It’s in his schoolbag.
Where’s your ruler It’s under the chair.
Where are their keys They’re on the table.
where引导特殊疑问句的答语
(2)答语
①为了避免重复，回答时通常用it/he/she代替上文出现过的单数可数名词或不可数名词。
—Where＋is＋主语(单数可数名词/不可数名词)
—It's/He's/She's＋介词短语．如：
—Where is the boy？那个男孩在哪里？
—He's in his bedroom. 他在他的卧室里。
②为了避免重复，回答时通常用they代替上文出现过的复数可数名词。
—Where＋are＋主语(复数可数名词)
—They're＋介词短语．如：
—Where are my keys 我的钥匙在哪里？
—They're on the table.它们在桌子上。
③where引导的特殊疑问句也可以直接用介词短语回答。如果不知道答案，可以说“Sorry, I don't know.”如：
—Where is your schoolbag
你的书包在哪里？
—It's under the table./Under the table.
在桌子下面。
(3)表示方位的介词
(1)介词一般位于名词或代词前，表示该词与其他成分的关系。
(2)常见的方位介词(短语): on(在……上面); in(在……里); under(在……下面); in front of(在……前面); behind(在……后面); near(在……附近); next to(紧挨着); between(在……之间); at(在) ......
on 在……上 一个物体在另一个物体的表面上，且两个物体之间有接触。
in 在……里 一个物体在另一个物体或某一空间的内部。
under 在……下面 一个物体在另一个物体的正下方，两者可以接触，也可以不接触。
　in front of the blackboard
　在黑板前面　　
　behind the tree
　在树后面
　near the postbox
　 在邮箱附近
　next to the TV
　紧挨着电视机
　between the two boys
　在两个男孩之间
　at the door　
　在门口　　　
Look at the pictures and complete the conversations.
3a
A: Where ______ the keys
B: They’re ______ the ________.
are
on
table
1
2
3
A: Where’s the _______ ___ it on your desk
B: No, it’s _______ the chair.
book
Is
under
A: Where _______ the pencils
B: I don’t know. ______ they in the _________
A: Yes, they are.
are
Are
schoolbag
[观察1]I don't know. 我不知道。
[探究] (1)“I don't know.”是“I know.”的否定形式。don't是________的缩写形式，do是助动词，本身没有意义。
(2)know为实义动词，意为“知道；了解”，其后可接名词或代词作宾语。
She's my good friend. I know her very well.
她是我的好朋友。我非常了解她。
I don't know this boy. 我不认识这个男孩。
do not
Ask and answer questions about the things.
3b
—Where is/ are...
— ...
3c
Student A ,look at the picture on Page 19. Student
B, look at the picture on the right. Ask and answer
questions to find the differences.
A: Where’s the schoolbag Is it under the table
B: No, it isn’t. It’s on the table.
Exercise
连词成句
1．baseball, the, bed, is, the, under
_____________________________.
2．computer, where, his, games, are
_____________________________
3．her, dog, bedroom, is, the, in
_____________________________
4．the, are, books, on, desk, some
_____________________________.
5．my, chair, is, sister's, where
_____________________________
The baseball is under the bed
Where are his computer games
Is her dog in the bedroom/ Is the dog in her bedroom
Some books are on the desk
Where is my sister's chair
Summary
Summary
GOOD JOB