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(共26张PPT)
Unit 4
Amazing Plants and Animals
人教版2024版八年级上册
Section B (2a—2d) 词汇课
Learning Objectives
1. 学生能通过圈出不同类单词并阐述理由，准确理解情感相关词汇及动词的语义差异；结合2b词形转换练习，明晰“-ance”“-(t)ion”等后缀构成名词的规则。
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2. 学生能依据句子语境和语义逻辑，正确运用词的适当形式完成2c填空练习，在小组交流中，能用“根据……语境，所以选择……词汇的某种形式”阐述选择依据，提升词汇形态辨析与语境适配能力。。
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3. 学生能借鉴2d语篇的逻辑结构，运用目标词汇完成一段关于“生态中某类生物作用”的短文，实现词汇从输入到输出的转化，提升主题表达与语篇构建能力。
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按要求写出正确的单词、词组或句子。
没有 (介词) __________ 2. 想象 (动词) ___________
3. 蜂蜜(名词) __________ 4. 沮丧的(形容词) __________
5. 行动（名词) __________ 6. 百分之(名词) __________
7. 为了（短语）__________ 8. 储存（动词）________
9. 动植物如何和我们联系到一起。
___________________________
10. 为了存贮蜂蜜，它们创建了蜂巢。
_______________________
11. 蜜蜂在我们星球的生态系统中扮演重要角色。
___________________
without
imagine
honey
disappointed
action
percent
in order to
store
How are plants and animals connected with us
Bees play an important part in the ecosystem of our planet.
In order to store honey, they create honeycombs.
回顾复习 Section B (1a—1f)
Circle the odd ones. Then give your reasons.
2a
1. habit height size weight
2. joy happiness fun enjoy
3. angry disappointed smart sad
4. appear look seem watch
5. honey milk juice bread
happiness/ h pin s/
n. 幸福；快乐
disappoint / d s p nt/
v. 使失望；使破灭
3. angry disappointed smart sad
2. joy happiness fun enjoy
1. habit height size weight
height（身高；高度 ）、size（大小；尺寸 ）、
weight（重量 ）都用于描 述事物的 “物理量化属性”。
它是动词，其他三个是名词表示积极情绪：“joy”
（欢乐 ）、“happiness”（幸福 ）、“fun”（乐趣 ）
smart说的是个人聪明特质，其他三个是负面情绪形容词：angry”（生气的 ）、“disappointed”（失望的 ）、“sad”（难过的 ）
5. honey milk juice bread
4. appear look seem watch
watch是实际的观看动作，其他三个是表达表象 / 印象的: appear”（似乎）、“look”（看起来 ）、“seem”（好像；仿佛 ）
bread”（面包 ）是 “固体食物” ，和前三个是液体饮品类
Add the endings -ance, -(t) ion, -ness, and -ity to form nouns.
Use your dictionary. 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
-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 ）
2b
单词构成
disagreement
名词类后缀
Life was like a box of chocolates, you never know what you’re go to get.
一、注意：-ation或者-tion，-sion是名词后缀。所以一个单词去掉末尾的元音字母加上-ation 或者-tion ，可以变成它的名词形式。
1.invite v.邀请
invitation n.邀请
2.celebrate v.庆祝
celebration n.【可数】庆祝，庆祝会
3.decorate v.装饰
decoration n.【可数】装饰，装修
4. congratulate v.祝贺
congratulation n.祝贺
5.pollute v.污染
pollution n.污染
6.attract v.吸引
attractive adj.吸引人的，迷人的
attraction n.吸引，吸引力，吸引人的事物
7.suggest v.建议
suggestion n[C］建议
8. discuss v.讨论
discussion n.讨论
9.express v.表达，表示，表露
expression n.【可数】表达，表示，表现
10.decide v.决定
decision n.[可数]决定
二、注意：-ment是名词后缀。所以一个单词加上-ment，可以变成它的名词形式。
disappoint v.使失望 disappointment n.失望，沮丧
三、-ness名词后缀。
careless adj.粗心的
carelessness n.粗心
happy
happiness n.幸福
四、许多形容词词尾的t变成ce就成为它的名词形式。如different，difference；patient，patience；confident，confidence等。
silent adj.不说话的，沉默的
silence n.沉默
confident adj.自信的
confidence n.自信
还有一些结尾ce，名词的词。
choose v.选择
choice n.【C】选择
五、-ing动名词
当然-ing它可以表示名词。
1. say v.讲，说明
saying n.[C]俗话，谚语
2. dress v.穿衣 n.连衣裙，女装
dressing n.穿戴，穿衣
六、国家变名词：
一些国家词尾变成an或者ian，就变成它对应的名词形式。如 Australia Australian，America American。
1. Italy n.意大利
Italian adj.意大利（人）的，意大利语的 n.意大利人，意大利语
2. Africa n.非洲
African adj.非洲的，非洲人的 n.非洲人
3. Russia n.俄国
Russian adj.俄国（人）的，俄语的 n.俄国人，俄语
4.Canada n.加拿大
Canadian adj.加拿大的，加拿大人的 n.加拿大人
七、一些动词，或者名词+er或者or变成对应的人或者物。
1.cook v.烹饪，做饭 n.［C］厨师
cooker n.炊具
2.win v.赢得，获胜
winner n.获胜者
3. own adj.自己的，本人的v.有，拥有
owner n.主人
4. office n.办公室
officer n.警官，军官
八、一些形容词词尾变成-ty即成为名词。
1.difficult adj.困难的
difficulty n.[U]困难 n.[C]各种困难
2.safe adj.安全的 n.保险箱
safety n.安全
九、-al做名词后缀。
office n.办公室
official n.官员，高级职员 adj.官方的，正式的
十、-ance作名词后缀
appear v. 出现
appearance n. 出现
Complete the sentences with the correct forms of the words in the box.
2c
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
/ m r m /
n. 蘑菇；伞菌
ton /t n/ n. 吨
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.
Guess what animal is it
pea /pi / n. 豌豆
It’s a frog.
What do you know about the connection between humans and frogs
Complete the passage with the correct forms of the words in the box.
2d
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
/r l/ n. 作用；职能；角色
play a role (in)
在……中发挥作用；
扮演角色
pea /pi / n. 豌豆
/ kla m t/ n. 气候
What can frogs do for nature
Frogs help to protect farms by eating insects.
Frogs can help in studies on climate change and the ecosystem.
Frogs play an important role in the planet's ecosystem.
qq
自我检测
按要求写出正确的单词、词组或句子。
幸福 (名词) __________ 2. 失望的 (形容词) ___________
3. 蘑菇(名词) __________ 4. 吨(名词) __________
5. 扮演角色（短语) __________ 6. 豆子(名词) __________
7. 出现（名词）__________ 8. 行李（名词）________
9. 当我最喜欢的花死了的时候，我感到失望。
___________________________
10. 雨后，一些蘑菇在花园中出现。
_______________________
11. 我无法想象没有我的宠物的生活。
___________________
happiness
disappointed
mushroom
ton
play a role in
pea
appearance
luggage
I felt disappointed when my favourite flowers died.
I can’t imagine my life without my pets.
After the rain, some mushrooms appeared in the garden.
习题训练
(一)根据语境用所给单词的适当形式填空
1. Sarah made her final __________ (appear) on a chat show on TV on 6 July, 2025.
2. It is exciting to attend the ________ (open) of the new library in our school.
3. The film Coco helps ________ (view) understand the importance of family and dreams.
appearance
opening
viewers
(二)仿写句子
1. After the show, many viewers searched online to learn about these skills. (动词不定式短语作目的状语 )
仿写： 我们必须做一些事情来拯救处于危险中的野生动物。
_____________________________________________
We must do something to save the wild animals in danger.
2. Li Ziqi proved that old traditions can live in modern times. (that 引导宾语从句 )
仿写： 大多数人认为对于学生来说，在学校学习一些生活技能是必要的。
____________________________________________________________________________
Most people think that it’s necessary for students to learn some life skills at school.

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