资源简介

(共53张PPT)
— — — Unit 4 The Earth — — —
单词讲解
Vocabulary
system / s st m/ n. 系统
file /fa l/ n. 档案
amazing / me z / adj. 令人大为惊奇的
planet / pl n t/ n. 行星
billion / b lj n/ num. 十亿
cover / k v (r)/ v. 盖；覆盖
area / e ri / n. 地区；地域
freezing / fri z / adj. 极冷的
north /n θ/ n. 北；北方
pole /p l/ n.（行星的）极；地极
desert / dez t/ n. 沙漠；荒漠
metre / mi t (r)/ n. 米
Vocabulary
reach /ri t / v. 足够达到
grain /ɡre n/ n. 谷粒
wide /wa d/ adj. 宽的；宽阔的
whale /we l/ n. 鲸
butterfly / b t fla / n. 蝴蝶
provide /pr va d/ v. 提供；供应
support /s p t/ v. 支持；维持
explore / k spl (r)/ v. 探索
disappear / d s p (r)/ v. 消失；不见
plastic / pl st k/ n. 塑料
pollution /p lu n/ n. 污染
protect /pr tekt/ v. 保护
Vocabulary
chemical / kem kl/ n. 化学制品；化学品
groundwater / ɡra ndw t (r)/ n. 地下水
burn /b n/ v. 燃烧；烧
oil / l/ n. 石油；原油
gas /ɡ s/ n. 天然气
harmful / hɑ mfl/ adj. 有害的
website / websa t/ n. 网站
own / n/ adj. 自己的；本人的
however /ha ev (r)/ adv. 然而；不过
emperor / emp r (r)/ n. 皇帝
hunt /h nt/ v. 打猎
war /w (r)/ n. 战争
Vocabulary
sandstorm / s ndst m/ n. 沙暴
solution /s lu n/ n. 解决办法
blow /bl / v. 刮；吹
generation / d en re n/ n.（统称）一代人
— — — Unit 4 — — —
Words and expressions
system
/ s st m/
n. 系统
词性
变换
- systematic adj. 系统的
短语
- solar system 太阳系
- operating system 操作系统
例句
1. The solar system includes the sun and eight planets.
太阳系包括太阳和八颗行星。
2. We need a better system to manage our files.
我们需要一个更好的系统来管理档案。
file
/fa l/
n. 档案；文件
词性
变换
- file v. 把……归档
短语
- fact file 事实档案
- computer file 电脑文件
例句
1. Please keep these important files in a safe place.
请把这些重要档案保存在安全的地方。
2. She filed the letters in order.
她把信件按顺序归档。
amazing
/ me z /
adj. 令人大为惊奇的
词性
变换
- amaze v. 使惊奇
- amazed adj. 感到惊奇的
短语
- amazing news 惊人的消息
- an amazing view 令人惊叹的景色
例句
1. It’s amazing that he can speak five languages.
他会说五种语言，真令人惊奇。
2. We saw an amazing sunset at the beach.
我们在海滩看到了令人惊叹的日落。
planet
/ pl n t/
n. 行星
词性
变换
- planetary adj. 行星的
短语
- the planet Earth 地球
- outer planets 外行星
例句
1. Earth is the only planet known to have life.
地球是已知唯一有生命的行星。
2. Scientists are exploring other planets in space.
科学家们正在探索太空中的其他行星。
billion
/ b lj n/
num. 十亿
短语
- billions of 数十亿的
例句
1. The population of this country is over one billion.
这个国家的人口超过十亿。
2. It costs billions of dollars to build this bridge.
建这座桥花费了数十亿美元。
cover
/ k v (r)/
v. 盖；覆盖；
n. 封面
词性
变换
- coverage n. 覆盖范围
短语
- be covered by 被……覆盖
- cover with 用……覆盖
例句
1. Snow covers the ground in winter.
冬天雪覆盖着地面。
2. The book has a beautiful blue cover.
这本书有一个漂亮的蓝色封面。
area
/ e ri /
n. 地区；地域；面积
短语
- rural area 农村地区
- the area of ……的面积
例句
1. This area is famous for its beautiful mountains.
这个地区以美丽的山脉而闻名。
2. The area of the room is 20 square metres.
这个房间的面积是20平方米。
freezing
/ fri z /
adj. 极冷的
词性
变换
- freeze v. 结冰；冻结
- freeze n. 冻结
短语
- freezing cold 极冷
- freezing point 冰点
例句
1. It’s freezing outside; put on your coat.
外面极冷，穿上你的外套。
2. The water in the lake is freezing in winter.
冬天湖里的水会结冰。
north
/n θ/
n. 北；北方；
adj. 北方的
词性
变换
- northern adj. 北方的
短语
- in the north 在北方
- north of ……的北边
例句
1. The wind is blowing from the north.
风从北方吹来。
2. Harbin is in the north of China.
哈尔滨在中国的北方。
pole
/p l/
n. （行星的）极；地极；杆子
短语
- the North Pole 北极
- the South Pole 南极
例句
1. Polar bears live near the North Pole.
北极熊生活在北极附近。
2. He used a long pole to reach the apple.
他用一根长杆子去够苹果。
desert
/ dez t/
n. 沙漠；荒漠
词性
变换
- desert v. 抛弃；遗弃
短语
- the Sahara Desert 撒哈拉沙漠
- desert island 荒岛
例句
1. The desert is very dry and hot during the day.
沙漠白天非常干燥炎热。
2. He was deserted by his friends.
他被朋友们抛弃了。
metre
/ mi t (r)/
n. 米（英式拼写；美式为 meter）
词性
变换
- metric adj. 公制的
短语
- one metre 一米
- square metre 平方米
例句
1. The tree is about ten metres tall.
这棵树大约十米高。
2. The room is five metres long and three metres wide.
这个房间长五米，宽三米。
reach
/ri t /
v. 足够达到；到达；
n. 范围
短语
- reach for 伸手去够
- reach a conclusion 得出结论
例句
1. The temperature will reach 30℃ today.
今天气温将达到30摄氏度。
2. We reached the top of the mountain at noon.
我们在中午到达了山顶。
grain
/ɡre n/
n. 谷粒；谷物
短语
- a grain of rice 一粒米
- grain crops 粮食作物
例句
1. Farmers grow grain in the fields.
农民在田里种谷物。
2. There is a grain of truth in what he said.
他说的话有一点道理。
wide
/wa d/
adj. 宽的；宽阔的
词性
变换
- widen v. 拓宽
- width n. 宽度
短语
- wide road 宽阔的马路
- wide eyes 睁大的眼睛
例句
1. The river is very wide here.
这里的河很宽。
2. She opened her eyes wide in surprise.
她惊讶地睁大了眼睛。
whale
/we l/
n. 鲸
短语
- blue whale 蓝鲸
- a whale of a time 玩得非常开心
例句
1. The blue whale is the largest animal in the world.
蓝鲸是世界上最大的动物。
2. We had a whale of a time at the party.
我们在派对上玩得非常开心。
butterfly
/ b t fla /
n. 蝴蝶
短语
- butterfly wings 蝴蝶翅膀
例句
1. A beautiful butterfly is flying among the flowers.
一只美丽的蝴蝶在花丛中飞舞。
2. She likes to collect butterfly stickers.
她喜欢收集蝴蝶贴纸。
provide
/pr va d/
v. 提供；供应
词性
变换
- provision n. 供应； provisions 食物
短语
- provide … with … 为……提供……
- provide for 供养
例句
1. The sun provides us with light and heat.
太阳为我们提供光和热。
2. He works hard to provide for his family.
他努力工作供养家人。
support
/s p t/
v. 支持；维持；
n. 支持
词性
变换
- supporter n. 支持者
短语
- support one’s family 养家糊口
- in support of 支持
例句
1. I will always support your dreams.
我会永远支持你的梦想。
2. His family gave him a lot of support.
他的家人给了他很多支持。
explore
/ k spl (r)/
v. 探索
词性
变换
- exploration n. 探索
- explorer n. 探险家
短语
- explore the unknown 探索未知
- explore space 探索太空
例句
1. We want to explore the old castle this weekend.
我们想这个周末去探索那座古堡。
2. Scientists are exploring the deep sea.
科学家们正在探索深海。
disappear
/ d s p (r)/
v. 消失；不见
词性
变换
- disappearance n. 消失
短语
- disappear into 消失在……里
例句
1. The sun disappeared behind the clouds.
太阳消失在云层后面。
2. Many animals are disappearing because of pollution.
许多动物因为污染正在消失。
plastic
/ pl st k/
n. 塑料；
adj. 塑料的
短语
- plastic bag 塑料袋
- plastic pollution 塑料污染
例句
1. We should use less plastic to protect the environment.
我们应该少用塑料来保护环境。
2. The toy is made of plastic.
这个玩具是塑料做的。
pollution
/p lu n/
n. 污染
词性
变换
- pollute v. 污染
- polluted adj. 被污染的
短语
- air pollution 空气污染
- water pollution 水污染
例句
1. Pollution is a big problem in many cities.
污染是许多城市的大问题。
2. We must stop polluting our rivers.
我们必须停止污染河流。
protect
/pr tekt/
v. 保护
词性
变换
- protection n. 保护
- protective adj. 保护的
短语
- protect … from … 保护……免受……
例句
1. We should protect the earth from pollution.
我们应该保护地球免受污染。
2. Wearing a hat can protect your skin from the sun.
戴帽子可以保护你的皮肤免受阳光照射。
chemical
/ kem kl/
n. 化学制品；化学品；
adj. 化学的
词性
变换
- chemistry n. 化学
短语
- chemical reaction 化学反应
- harmful chemicals 有害化学品
例句
1. Some chemicals are dangerous to our health.
一些化学品对我们的健康有害。
2. She is studying chemical engineering at university.
她在大学学习化学工程。
groundwater
/ ɡra ndw t (r)/
n. 地下水
短语
- groundwater pollution 地下水污染
例句
1. Many villages get their drinking water from groundwater.
许多村庄从地下水中获取饮用水。
2. We need to protect groundwater from being polluted.
我们需要保护地下水不被污染。
burn
/b n/
v. 燃烧；烧（过去式 burnt/burned）
词性
变换
- burn n. 烧伤；燃烧
短语
- burn down 烧毁
- burn oil 燃烧石油
例句
1. The fire burned the house to the ground.
大火把房子烧毁了。
2. Be careful not to burn your hand.
小心别烫伤手。
oil
/ l/
n. 石油；原油；油
词性
变换
- oil v. 给……上油
短语
- crude oil 原油
- vegetable oil 植物油
例句
1. This country is rich in oil.
这个国家盛产石油。
2. You should oil the bike chain to keep it smooth.
你应该给自行车链条上油保持顺滑。
gas
/ɡ s/
n. 天然气；气体
短语
- natural gas 天然气
- gas station 加油站
例句
1. Many homes use gas for cooking.
许多家庭用天然气做饭。
2. Oxygen is a gas we need to breathe.
氧气是我们呼吸需要的气体。
harmful
/ hɑ mfl/
adj. 有害的
词性
变换
- harm n. 伤害
- harm v. 伤害
短语
- be harmful to 对……有害
例句
1. Smoking is harmful to your health.
吸烟对你的健康有害。
2. These chemicals are harmful to the environment.
这些化学品对环境有害。
website
/ websa t/
n. 网站
短语
- visit a website 访问网站
- create a website 创建网站
例句
1. You can find more information on our school website.
你可以在我们学校网站上找到更多信息。
2. He built a website to share his photos.
他建了一个网站来分享他的照片。
own
/ n/
adj. 自己的；本人的；
v. 拥有
词性
变换
- owner n. 主人
短语
- one’s own 自己的
- own a house 拥有房子
例句
1. I want to have my own room.
我想要有自己的房间。
2. He owns a small shop in the town.
他在镇上拥有一家小商店。
however
/ha ev (r)/
adv. 然而；不过
例句
1. The plan is good; however, we don’t have enough money.
这个计划很好，不过我们没有足够的钱。
2. However hard he tries, he can’t finish the work on time.
无论他多么努力，都不能按时完成工作。
emperor
/ emp r (r)/
n. 皇帝
词性
变换
- empire n. 帝国
短语
- the Roman Emperor 罗马皇帝
例句
1. The emperor lived in a beautiful palace.
皇帝住在一座美丽的宫殿里。
2. Qin Shi Huang was the first emperor of China.
秦始皇是中国的第一位皇帝。
hunt
/h nt/
v. 打猎；搜寻
词性
变换
- hunter n. 猎人
短语
- hunt for 寻找
- hunt animals 打猎
例句
1. People used to hunt animals for food in the old days.
过去人们打猎获取食物。
2. I’m hunting for my lost keys.
我在寻找我丢失的钥匙。
war
/w (r)/
n. 战争
词性
变换
- warlike adj. 好战的
短语
- world war 世界大战
- at war 处于战争中
例句
1. The war caused great suffering to people.
战争给人们带来了巨大的痛苦。
2. The two countries have been at war for years.
这两个国家已经交战多年。
sandstorm
/ s ndst m/
n. 沙暴
短语
- a strong sandstorm 强沙暴
例句
1. A terrible sandstorm hit the city yesterday.
昨天一场可怕的沙暴袭击了这座城市。
2. Sandstorms are common in dry areas.
沙暴在干旱地区很常见。
solution
/s lu n/
n. 解决办法
词性
变换
- solve v. 解决
短语
- find a solution 找到解决办法
- solution to ……的解决办法
例句
1. We need to find a solution to the traffic problem.
我们需要找到解决交通问题的办法。
2. The solution to this math problem is very simple.
这道数学题的解法很简单。
blow
/bl /
v. 刮；吹（过去式 blew，过去分词 blown）
词性
变换
- blow n. 打击
短语
- blow away 吹走
- blow out 吹灭
例句
1. The wind is blowing hard today.
今天风刮得很大。
2. She blew out the candles on her birthday cake.
她吹灭了生日蛋糕上的蜡烛。
generation
/ d en re n/
n. （统称）一代人
词性
变换
- generational adj. 代际的
短语
- the younger generation 年轻一代
- generation gap 代沟
例句
1. Each generation has its own ideas and values.
每一代人都有自己的想法和价值观。
2. There is a generation gap between parents and children.
父母和孩子之间存在代沟。
— — — Unit 4 — — —
Exercises
一、根据句意及汉语或首字母提示完成单词
1. The s______ includes the sun and eight planets.
2. It's _______（令人大为惊奇的）that the little boy can speak three foreign languages.
3. Earth is the only ______（行星）known to have life.
4. The population of China is over 1.4 _______（十亿）.
5. Snow ______（覆盖）the whole mountain in winter.
ystem
amazing
planet
billion
covers
一、根据句意及汉语或首字母提示完成单词
6. It's ________（极冷的）outside, so you'd better wear a thick coat.
7. The Sahara is the largest ______（沙漠）in the world.
8. The sun ________（提供）us with light and heat every day.
9. _________（污染）is one of the most serious problems in modern society.
10. We should _______（保护）the earth from being destroyed.
freezing
desert
provides
Pollution
protect
二、用单词的适当形式填空
1. We were ______ (amaze) by the amazing performance last night.
2. The _____ (cover) of the book is decorated with a beautiful picture of the earth.
3. There are ________ (billion) of stars in the sky.
4. This area has been ________ (pollute) by harmful chemicals.
5. Smoking is _______ (harm) to our health.
amazed
cover
billions
polluted
harmful
二、用单词的适当形式填空
6. The ___________ (explore) of the universe has always been a dream of human beings.
7. The _____________ (disappear) of the dinosaurs is still a mystery.
8. He is the _____ (own) of a small bookstore near the school.
9. The fire _____ (burn) the old house to the ground last night.
10. What's the _____ (wide) of this river
exploration
disappearance
owner
burnt
width
三、选词填空
explore, disappear, protect, solution, harmful
(请从方框中选择合适单词填入空格，每词限用一次)
1. Scientists want to _______ the deep sea to find more resources for human beings.
2. Many rare animals are beginning to _________ because of plastic pollution and habitat loss.
3. We must _______ the groundwater from being polluted by chemicals.
4. The government is trying to find a ________ to the sandstorm problem.
5. Eating too much junk food is _______ to our body.
explore
disappear
protect
solution
harmful
See You!

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