Unit 5 A fine balance(知识点课件)(4份打包)2026-2027学年外研版九年级英语上册

资源下载
  1. 二一教育资源

Unit 5 A fine balance(知识点课件)(4份打包)2026-2027学年外研版九年级英语上册

资源简介

(共18张PPT)
square kilometre平方千米
在该短语中,square作形容词,意为“平方”。
square metre/mile平方米/英里#1.1.1
1 In 2021, about 37, 500 square kilometres of
rainforest were lost. 2021年,约有37 500平方千米的雨
林消失。(教材P74)
Our factory covers an area of five square kilometres.我
们的工厂占地5平方千米。
The new classroom is about 50 square metres in size.
这间新教室的面积大约是50平方米。#1.1.3
用法拓展
square n. 广场;正方形
The whole square was bright when the sparks were
shining in the night sky.当火花在夜空中闪耀时,整个
广场都很明亮。
Please draw a square on the paper.请在纸上画一个正方
形。#1.2.3
alarm / lɑ:m/ n. 警报
raise/sound the alarm发出警报#1.1
2 When it catches the noise of cutting down trees, it
sends an alarm.当它捕捉到伐木的声音时,就会发出警
报。(教材P75)
A car alarm went off in the middle of the night.半夜
里一辆汽车的警报器突然响了起来。
Neighbours raised the alarm when they smelled smoke.
邻居闻到烟味便发出了警报。#1.1.2
词义拓展
v. 使惊恐;使担心
The news about the earthquake alarmed my family. 地
震的消息让我的家人很惊恐。#2.1.1
guard /ɡɑ:d/ n. 警卫;门卫#1
3 The forest guards find the place and stop the
logging. 森林护林员找到这个地方并制止砍伐。
(教材P75)
armed guards武装警卫
a security guard保安
The building is protected by armed guards.大楼由武装
警卫把守。#1.2.1
词义拓展
v. 守卫;保卫
guard against sth.防止/防范/提防某事
The dog was guarding its owner’s luggage.狗在守护着
主人的行李。
We need to guard against any possible danger around
us. 我们需要防范周围任何可能的危险。#1.3.3
4 The panda was chosen because it is “an animal
that is beautiful, endangered, and loved by many
people in the world”.熊猫之所以被选中,是因为它是
一种既美丽又濒危,且深受全世界许多人喜爱的动物。
(教材P76)
endangered / n de nd d/ adj. 濒危的,濒临灭绝的
danger, dangerous, endanger与endangered#1.1
danger n.危险;威胁 (in danger处 于危险中) When in danger, please keep
calm.当处于危险中时,请保
持冷静。
dangerous adj.危险的 Tigers are dangerous animals.
老虎是危险的动物。
endanger v.使遭危险; 危及 Smoking can endanger your
health.吸烟会危及你的健康。
endangered adj.濒危的, 濒临灭绝的 He felt very excited to see
this kind of endangered bird.
看到这种濒临灭绝的鸟,他感
到非常兴奋。
protection /pr tek n/ n. 保护
[不可数名词]由“protect(v. 保护,防护)+-ion
(名词后缀)”构成。
protection for/of sb./sth.对某人/某物的保护#1.1.1
5 Among the first national parks in China, there was
one for panda protection. 在中国首批国家公园中,就
有一座专门用于保护熊猫的公园。(教材P76)
This law provides protection for endangered animals
and plants. 这项法律保护了濒危动植物。
Everyone has a part to play in the protection of the
environment. 每个人都能在环境保护中发挥作用。#1.1.3
典例 用括号中所给词的适当形式填空。
The volunteers are working hard on the __________ of
the environment. (protect)
protection
[解析] 句意:志愿者们正在致力于环境保护。根据介词
“on”和定冠词“the”可知,此处应填名词。“protect”是
动词,其名词形式为“protection”。“the protection of the
environment”意为“环境保护”。故填protection。
6 The Giant Panda National Park is three times as
large as Yellowstone National Park in the United
States.大熊猫国家公园的面积是美国黄石国家公园的三倍
大。(教材P77)
倍数表达法
“...times+as+形容词/副词原级+as”是英语中的一种倍数
表达方式,意为“是……的……倍……”,需注意此处的
times是名词复数形式,as...as中间要用形容词或副词的原
级。常见的倍数表达法还有:#1.1
...times+形容词/副词比较级+than
...times+the size/height/length/...of...
Jack runs three times as fast as Jim.杰克跑的速度是吉
姆的三倍。
The new swimming pool is four times bigger than the
old one.新游泳池是旧游泳池的四倍大。
This park is three times the size of that one.这个公园
是那个公园的三倍大。#1.1.6(共8张PPT)
定语从句(2)
考向1 关系代词that和which的用法
关系 代词 指 代 例句
that 人 或 物 I don’t like the people that get angry
easily.我不喜欢容易生气的人。(作主语,
指人,不可省略)
关系 代词 指 代 例句
that 人 或 物 That’s the book (that) I read yesterday.
那是我昨天读的那本书。(作宾语,指物,
可省略)
She is the girl (that) you saw this
morning.她就是你今天早上遇到的那个女
孩。(作宾语,指人,可省略)
关系 代词 指 代 例句
which 物 The story which tells about courage is
moving.这个讲述勇气的故事很感人。
(作主语,不可省略)
The movie (which) we watched last
night is worth watching.我们昨晚看的那部
电影很值得一看。(作宾语,可省略)
用法拓展
关系代词在从句中作主语时,从句谓语动词与先行词在
人称和数上要保持一致。#1.1.1
考向2 只能用关系代词that而不用which的情况
(1)当先行词是all、any、something、anything、much、
little、few、none等不定代词时。
Is there anything that you don’t understand 你有什么
不懂的地方吗?
All that can be done must be done.凡是能做的都必须
做。
(2)当先行词被the only、the last、some、much等词、
形容词的最高级或序数词修饰时。
This is the only pen that I can find.这是我能找到的唯
一的钢笔。
That is one of the most interesting books that are sold
in the bookstore.那是这家书店出售的最有趣的书之一。
The first thing that we should do is to get some food.
我们应该做的第一件事是弄点儿吃的。
(3)当先行词既有人又有物时。
The writer and his novel that you have just talked
about are really well-known.你刚才谈起的那位作家以及
他的小说确实很有名。(共31张PPT)
human / hju:m n/ adj. 人的,人类的
通常用于名词前作定语。
Books are the ladder of human progress. 书籍是人类进
步的阶梯。——Maxim Gorky马克西姆·高尔基#1.2
1 One day, all human activities stop.有一天,所有人
类活动都停止。(教材P68)
Human activities are changing the weather. 人类活动正
在改变天气。
用法拓展
n.人 与human being意思相同,复数形式为humans。
Climate change is bad for us humans/human beings.气
候变化对我们人类有害。#1.4.2
drop /dr p/ v. 降低
(1)[不及物动词](水平)降低;(数量)减少
The temperature dropped a lot at night.夜里气温下降了
很多。
2 Without humans, the noise drops greatly as traffic
stops.没有了人类,随着交通停运,噪声大幅降低。
(教材P68)
(2)[及物动词]降低(……的水平);减少(……的数量)
He dropped his voice.他压低了嗓音。
词块拓展
drop to降至
The temperature will drop to minus five degrees
Celsius this Friday.本周五气温将降至零下五摄氏度。
tourist / t r st/ n. 游客
[可数名词]由“tour(v. & n.旅行)+-ist(名词后缀)”构
成。
Many tourists think highly of Yangzhou for its
beautiful places of interest.许多游客因扬州美丽的名胜
而对其高度赞扬。#1.2
3 Also, tourists disappear from beaches and seas.同时,
游客也会从海滩和海域消失。(教材P68)
词缀拓展
-ist为常见的名词后缀,表示“从事……的人;……专家”。
常见的单词有:#1.3
artist 艺术家 scientist 科学家
dentist 牙医 novelist 小说家
chemist 化学家 physicist 物理学家
benefit / ben f t/ v. 受益,得益
#1
4 But not only animals enjoy the change. Plants
benefit, too. 不过,不仅是动物受益于这种变化,植物也
会受益。(教材P68)
benefit from... 从……获益#1.1
In fact, I have benefited from these changes.事实
上,我已经从这些改变中获益。
词义拓展
n. 益处;成效
the benefit of... ……的益处
She realised the benefits of sports and is now a big
fan of biking.她意识到了运动的好处,现在是骑行的疯
狂爱好者。#1.2.2.1
admire / d ma / v. 欣赏,观赏
People always admire the moon on the Mid-Autumn
night.人们总是在中秋夜赏月。#1.1
5 But there aren’t any people to admire such an
amazing world. 但是那时却没有人来欣赏这绝美的世界。
(教材P69)
词义拓展
v. 钦佩;赞赏
admire sb. for (doing) sth. 因(做)某事而钦佩某人
We all admire him for his ability to sing.我们都钦佩
他的歌唱才能。#1.2.2
rapid / r p d/ adj. 快速的,迅速的
These experiences open students’ eyes to modern
China’s rapid development.这些经历让学生们见识到了
当代中国的快速发展。#1.2
6 The rapid development of human society has made
us care less for nature.人类社会的快速发展让我们对自
然的关注日益减少。(教材P69)
rapid,fast与quick
三者都有“快速的,迅速的”之意,区别如下:#1.3.1
rapid 稍正式些,最常用于描述事物变化的速度,而非运动或完成的速度;常与名词change、growth、increase、 development等连用。 The area has seen a rapid development. 这个地区发展迅速。
fast 常用于描述高速运动的人或事物;常与名词car、train、pace等连用。 It is the fastest train in the world.它是世界上最快的火车。
quick 常用于描述迅速或立即完成的事;常与名词glance、reply、decision等连用。 She gave him a
quick glance.她迅速扫了他一眼。
cancel / k ns l/ v. 取消 →同义短语为call off
其过去式和过去分词均为cancelled或canceled, 现在分词
为cancelling或canceling。
7 But the world isn’t a game. We can’t cancel it and
start over. 但是,世界不是一场游戏,我们无法将它取
消并重新开始。(教材P69)
I’m afraid I’ll have to cancel our meeting tomorrow.恐
怕我得取消我们明天的会议。
All flights have been cancelled because of the bad
weather.因天气恶劣,所有航班均已取消。
典例 根据句意及汉语提示填写单词。
Our plan to visit another farm was _________________
(取消) because of the heavy snow.
cancelled/canceled
[解析] 句意:我们去另一个农场参观的计划因为大雪被
取消了。此处plan和谓语动词之间是被动关系,因此空处
应填cancel“取消”的过去分词,故填cancelled/canceled。
get along with与……和谐相处
相当于get on with。#1.1
8 We need to think more about how to get along
with nature.我们需要更多地思考如何与自然和谐相处。
(教材P69)
It’s important to learn how to get along/on with your
classmates at school. 在学校学习如何与同班同学和睦
相处是很重要的。
用法拓展
get along/on with sth.(谈及或问及工作情况等)进展
How are you getting along/on with your novel
你的小说写得怎么样了?#1.3.2
permit /p m t/ v. 允许→permission n. 允许#1
9 ... let us permit nature to have her way. ……让我
们顺其自然吧。(教材P69)
permit sb. to do sth.允许某人做某事
sb. be permitted to do sth.某人被允许做某事
Permit me to offer you some advice.请允许我向你提些
建议。
Visitors are not permitted to take photographs.参观者请
勿拍照。
词义拓展
n. 许可证
Do you have a resident’s parking permit 你有居民停车
许可证吗?#1.2.1.1
harm /hɑ:m/ v. 损害;危害;伤害 n.伤害,损害
10 Some organisations harm the environment. These
organisations should be punished.一些组织破坏环境。
这些组织应当受到惩罚。(教材P71)
(1)harm在此作及物动词,意为“损害;危害;伤害”。
Ocean pollution can harm sea life.海洋污染会伤害海
洋生物。
My dog would never harm anyone.我的狗不会伤害任
何人。
(2)harm还可作名词,意为“伤害,损害”。
do harm to… 对……有害
Try to choose products that do the least harm to the
environment.尽量选择对环境损害最小的产品。
词形拓展
harmful adj.有害的
be harmful to 对……有害
Noise is a kind of pollution and it is harmful to our
hearing.噪声是一种污染,对我们的听力有害。
Their mother punished them for their rudeness.他们的
妈妈因他们的粗鲁行为而惩罚了他们。#2.2.1
punish / p n / v. 处罚,惩罚#2
punish sb. for (doing) sth. 因(做)某事而处罚某人
punish sb. by doing sth.以做某事惩罚某人
My parents used to punish me by letting me clean the
room.过去我的父母常以让我打扫房间来惩罚我。
词形拓展
punishment n. 惩罚手段;处罚
既可作可数名词,又可作不可数名词。
give sb. a punishment给某人惩罚
as (a) punishment作为惩罚
#2.3.2
If you break the rules, the school will give you a
punishment.如果你违反规定,学校会对你进行处罚。
I was sent to wash the dishes as a punishment.我被罚
去洗碗。#2.3.2.2
rubbish / r b / n. 垃圾
[不可数名词]同义词有waste、trash、garbage、litter等。#1.1
11 Second, we should stop throwing rubbish into the
oceans. 其次,我们应该停止向海洋倾倒垃圾。
(教材P71)
a rubbish bag/bin垃圾袋/桶
household rubbish生活垃圾
take out the rubbish倒垃圾
rubbish sorting垃圾分类
Don’t throw away rubbish everywhere. It’s everyone’s
duty to protect the environment. 不要把垃圾丢得遍地
都是。保护环境是每个人的职责。#1.3.1
Please put the banana peels into the rubbish bin.请把香
蕉皮放进垃圾桶。
Nowadays, more and more people have realized the
importance of rubbish sorting. 如今,越来越多的人已
经意识到垃圾分类的重要性。#1.3.3(共21张PPT)
如何写与保护生态相关的文章
本单元的主题是“生态保护”,围绕自然生态、生态危
机与保护行动展开。与此相关的写作维度有:①描述当下
存在的某种生态问题;②介绍某种濒危动物面临的困境;
③讲述保护自然、守护物种的相关行动;④提出对人与
自然和谐相处的建议。#1
在写保护某种濒危动物的相关内容时,通常先介绍
其生存现状(如数量、栖息地情况、面临的生存威胁
等),然后介绍保护措施,最后表达对保护濒危动物的
看法并呼吁大家保护。#1.1
典例 假定你是李华,最近参加了一次难忘的自然生态之
旅,幸运地近距离观察了老虎,并从志愿者口中了解到
老虎的生存现状。请你根据下面提示,以“Tigers are in
danger”为题写一篇英语短文,向校英语报投稿,呼吁大
家保护老虎。#2
要求:
1.参考提示内容,可适当发挥;
2.词数100左右。
审主题:保护老虎
审体裁:应用文
审人称:以第一人称和第三人称为主
审时态:一般现在时
审要点:基本信息、老虎的生存现状、老虎对自然生态
的重要性、保护老虎的措施
写作框架
词句积累
词汇 外形 特征 orange fur 橙色皮毛
dark stripes 深色条纹
a strong body 强壮的身躯
sharp teeth and claws 锋利的牙齿和爪子
词汇 生存 现状 in great danger 处于极大的危险中
endangered animals 濒危动物
illegal hunting 非法捕猎
cut down trees 砍伐树木
lose their habitats 失去栖息地
hunt and kill tigers for ... 为了……猎杀老虎
词汇 保护 措施 build nature reserves 建立自然保护区
plant more trees 种更多树
protect forests 保护森林
stop hunting 停止猎杀
increase public education加强公共教育
let people know the importance of tigers 让
人们了解老虎的重要性
句子 开头句
①I recently took an unforgettable ecological trip
and luckily saw tigers up close.我最近参加了一次
难忘的生态之旅,有幸近距离见到了老虎。
②As one of the strongest wild animals, tigers
mostly live in forests.作为最强壮的野生动物之
一,老虎主要生活在森林里。
句子 中间句
①Tigers are now in great danger mainly because
of human activities. 老虎现在处于极大的危险中,
主要是因为人类活动。
②Cutting down trees makes tigers lose their
habitats. 砍伐树木导致老虎失去了栖息地。
句子 ③Hunting tigers illegally makes their number get
smaller and smaller.非法猎杀老虎使得它们的数量
越来越少。
④Tigers are important to nature because they
help keep the number of other wild animals in
balance.老虎对大自然很重要,因为它们有助于维
持其他野生动物数量的平衡。
句子 结尾句
①Let’s work together to save tigers.让我们一起拯
救老虎吧。
②I sincerely hope humans and tigers can live
together in harmony forever.我真心希望人类和老
虎能永远和谐共处。
佳作展示
Tigers are in danger
Tigers, one of the most charming wild animals,
have orange fur and unique dark stripes. ①Now they
are crying out for help.
②It is no surprise that tigers are in danger due to
human activities. ③With human society’s rapid
development, forests are cut down, making tigers lose
habitats. Some people even hunt and kill tigers illegally
for money.
教材原句 It is no surprise that animals soon increase in number.(教材P68)
④Tigers are vital to nature as they help keep the
number of other wild animals in balance. If they
disappear from the earth, many other species will be
greatly affected. ⑤To save them, we should not only
build more nature reserves and plant more trees but also
strictly stop illegal hunting. What’s more, everyone
should raise environmental protection awareness.
Let’s take action now! I hope humans and tigers
can get along well forever.
名师点评
本篇习作结构清晰、内容完整,涵盖所有要点并进
行了适当的补充。
①巧用短语cry out for help拟人化表达,把老虎濒危的
处境比作“呼喊求救”,增强感染力。
②It is no surprise that...和due to引出老虎濒危的原因。
③用With human society’s rapid development引出社会发
展引发的生态问题。
④用be vital to和keep...in balance凸显老虎对自然生态的
重要性。
⑤运用not only...but also...结构列举了具体的保护举措。

展开更多......

收起↑

资源列表