Unit 4 At the farm Part A Let's learn 课件(共14张PPT)

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名称 Unit 4 At the farm Part A Let's learn 课件(共14张PPT)
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科目 英语
更新时间 2021-02-08 07:58:26

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(共14张PPT)
Unit
4
At
the
farm
Part
A
Let's
learn
&
Let's
chant
Let's
learn
potato
carrot
tomato
green
beans
New
words
potato
carrot
tomato
green
beans
Answer
the
questions
1.What
are
they
talking
about?
_____________________________
2.How
many
kinds
of
vegetables
in
the
picture?
_____________________________
3.The
green
beans
are
_________
and
the
potatoes
are
__________.
They
are
talking
about
vegetables.
They
are
four
kinds
of
vegetables.
so
long
big
单词精讲
tomatoes,
potatoes,
carrots,
green
beans
tomatoes是tomato的名词复数,即在tomato后面
加es,类似的单词还有potato

potatoes(土豆)。
名词分为可数名词和不可数名词两种。可数名词通
常能一个一个的数,所以有单数和复数两种形式。不可
数名词,顾名思义,不能一个一个的数,所以没有复数
形式。可数名词单数变复数时,有一些是规则的,有规
律可循;有一些是不规则的。
(1)规则的名词复数的变化规律:
一般情况下,直接在名词后面加s。
dog

dogs(狗);
window

windows(窗户)
以s,x,sh,ch等结尾的名词,要在词尾加es。
bus

buses(公共汽车);
box

boxes(箱子)
以“辅音字母+y”结尾的名词,要把y变成i,再加es。
library

libraries(图书馆);strawberry
→strawberries
(草莓)
以o结尾的名词大多数直接加s。
zoo→zoos(动物园)(tomato,potato除外)
以f或fe结尾的名词,变f或fe为v,再加es。
knife→knives(小刀);leaf→leaves(叶子)
(2)常见的不规则名词的复数形式:
①单复数相同,例如:sheep
→sheep(绵羊);
fish
→fish(鱼)
②元音字母变化的,如:man
→men(男人);
woman

women(女人);foot
→feet(脚);
tooth
→teeth(牙齿)
③词尾发生变化的,如:child
→children(孩子)
Let's
chant
Exercise
一、单项选择。
(
)
1.
Look
at
these!
Are
these
____________?
A.
tomatoes
B.
carrot
C.
potatos
(
)
2.
—What
are
these?
—____________.
A.
These
are
apples.
B.
They
are
sheep.
C.
They
are
carrot.
A
B
二、根据句意按所给词的适当形式填空。
1.
Do
you
like
these
yellow
__________(西红柿)?
2.
Look
at
the
____________(四季豆).
They
are
so
long.
3.
__________(试吃一些)!
They’re
good.
4.
I
love
__________(吃)green
beans.
green
beans
Try
some
to
eat
tomatoes
Homework
Compare(比较)
you
with
your
classmates
and
write
an
essay.
Use
the
words
and
sentence
we
learnt
today.
Tips:

tomato、potato、carrot、green
beans

The
potatoes
are
big.