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(共16张PPT)
SectionB 2a-2c 词汇运用
Unit 4 Amazing Plants and Animals
Let’s think
What do the words in the same group have in common
habit height size weight
joy happiness fun enjoy
angry disappointed smart sad
appear look seem watch
honey milk juice bread
nouns
positive feelings
adjectives
verbs
nouns
tip: 可考虑词性
Circle the odd ones. Then give your reasons.
2a
different
Tips: You can pay attention to the words’ part-of-speech,semantic category,grammatical function,substance category.（注意单词的词性、词义范畴、语法功能和物质类别）
habit height size weight
joy happiness fun enjoy
angry disappointed smart sad
appear look seem watch
honey milk juice bread
habit height size weight
joy happiness fun enjoy
angry disappointed smart sad
appear look seem watch
honey milk juice bread
physical aspects
nouns
negative adjectives
（消极的）
linking verbs (系动词)
drinks
Let’s check
All the others are ...
(1) act
(2) good
(3) kind
(4) appear
(5) real
(6) imagine
(7) connect
(8) popular
(9) communicate
(10) important
Divide the words into two groups (verb and adjective).
Verb 动词
Adjective 形容词
act
good
kind
appear
real
imagine
connect
popular
communicate
important
Let’s try
kind (adj.)
名词 n.
+ ness
kindness
perform (v.)
+ ance
discuss (v.)
+ ion
performance
discussion
able (adj.)
+ eity
ability
名词后缀
Let’s talk
How can a verb or an adjective become a noun
Add the endings -ance, -(t) ion, -ness, and -ity to form nouns.
给以下词汇添加后缀，使之变成名词。
1. act_________________ 2. good _________________
3. kind_________________ 4. appear _________________
5. real_________________ 6. imagine_________________
7. connect_________________ 8. popular _________________
9. communicate _____________ 10. important _________________
action
goodness
kindness
appearance
reality
imagination
connection
popularity
communication
importance
2b
Can you find any rules Share with your partner.
verbs → nouns adjectives → nouns
act good
appear kind
imagine real
connect popular
communicate important
action
appearance
imagination
connection
communication
goodness
kindness
reality
popularity
importance
v.＋ -(t)ion / -ance
adj.＋ - ness / - ity / - ance
n.
-ance 结尾（多表 “行为、状态” ）
-(t) ion 结尾（多表 “动作、结果” ，动词变名词常用 ）
-ness 结尾（形容词 + ness 变 “状态、性质” ，超规律 ）
-ity 结尾（形容词 + ity 变 “性质、状态” ，稍正式但基础 ）
Let’s think
1. I felt ____________ when my favourite flowers died.
2. After the rain, some mushrooms ________ in the garden.
3. In my hometown, people often use bamboo baskets to ______ food.
4. What did you put in your luggage It _______ a ton.
5. I can’t ________ my life without my pets. They mean a lot to me.
appear disappoint imagine store weigh
disappointed
appear
store
weighs
imagine
形容词
动词原形
动词原形
动词原形
动词三单
Complete the sentences with the correct forms of the words in the box.
2c
n. 蘑菇；伞菌
n. 吨
对……来说意义重大
use sth. to do 使用某物做某事
meant
The smallest ones are as tiny as a pea, and some big ones can be as large as your hand!
They can jump in the field.
They live in water or on land.
What animal is it
pea /pi / n. 豌豆
Guessing game
It’s a frog！
very small
You may not realize it, but frogs play an important role in our ________ ecosystem. The smallest frogs are about the size of a pea, while larger ones can grow as big as a human hand. Many people know that frogs help to _______ farms by eating insects. _________, not everyone understands their __________ in nature. Frogs can live on _____ and in water. Because of this, they are popular subjects in studies on climate change and the ecosystem.
however important land planet protect
adj.
V原
adv.
n.
Let’s predict
adj.+n.
help to do
形代+n.
What kind of words would be put in the blanks
adv. （放句首），+句子
and 表并列，结构要和 in water 一致
n.
You may not realize it, but frogs play an important role in our ________ ecosystem. The smallest frogs are about the size of a pea, while larger ones can grow as big as a human hand. Many people know that frogs help to _______ farms by eating insects. _________, not everyone understands their __________ in nature. Frogs can live on _____ and in water. Because of this, they are popular subjects in studies on climate change and the ecosystem.
however important land planet protect
planet's
protect
However
importance
land
Complete the sentences with the correct forms of the words in the box.
2c
planet's
protect
However
importance
land
Language points
在...中扮演重要的角色
星球的生态系统
...的尺寸、大小
表对比
和...一样大; as +原级+ as
通过吃昆虫；by (prep.)+ V-ing
在陆地上
因为，后+n./n.词组
关于
气候变化
Complete the mind map and retell.
protect farms by ___________
popular subjects of ___________
and the _____________
_________
Frogs
_________________
_____________________
_________
living places
sizes
eating insects
climate change
ecosystem
the size of a pea
as big as a human hand
on land
in water
importance
Let’s retell
一、单项选择
( )1. I was very ______ when I heard the bad news.
A. angry B. anger C. angrily D. angrier
( )2. The little boy can’t ______ how big the world is.
A. imagine B. imagine about
C. imagine with D. imagine to
( )3. The old man likes to ______ his old photos in the box.
A. store B. save C. enjoy D. hold
( )4. The ______ of the elephant is about 5 tons.
A. high B. height C. weigh D. weight
A
A
A
D
Exercise
1. I’d like to buy some sausages, ___________ (mushroom), onions and cheese to make a pizza.
2. Volunteers bring _________ (happy) to the elderly in nursing homes.
3. She experienced ______________ when she didn’t get the job she had applied for. (disappoint)
4. The film Coco helps viewers understand the ___________ (important) of family and dream.
5. Let’s find out what else we can do __________ (protect) as many animals as possible.
mushrooms
happiness
disappointment
importance
to protect
二、用所给单词的适当形式填空

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