Unit 4 Our World 复习课件（93张）

课件93张PPT。Unit 4 Our WorldTopic 1 What’s the strongest animal on the farm?Section Asheepsome sheepWhat can we see in the countryside?goosesome geeseWhat can we see in the countryside?mousesome miceWhat can we see in the countryside?单音节及部分双音节形容词比较级（- er）和最高级（- est）的规则变化。1. 一般在词尾直接加er/est: tall—taller—tallest
2. 以e 结尾的单词去e加er/est: wide—wider—widest
3. 以辅音字母加y结尾的单词，把y改成i, 再加 er/est : busy—busier—busiest
以重读闭音节结尾，且末尾只有一个辅音字母的单
词，双写末尾的辅音字母，再加er/est :
big—bigger—biggest , (fat, thin, red, hot) taller tallest braverbravest fatterfattestthinnerthinnest uglierugliest2bStudy the rules carefully and complete the table.写出下列形容词的比较级和最高级。 short _______ _______ small ______ _______
large _______ ________ late _______ _______
happy ______ ________ easy ________ _______
hot _______ ________ hard ________ _______
cute ________ ________ dirty ________ ______Listen to the conversation and fill in the blanks.2aOne day, the children were visiting a farm.录音2a-P81small big The mice are smaller than the hens. The hens are smaller than the geese.The mice are the smallest of all.<<？？>>The hens are bigger than the mice.The geese are bigger than the hens. The geese are the biggest of all.small big？？thin The ducks are a little thinner than the geese. superlative degrees of adjective.
形容词比较级、最高级的规则变化
及用法。（-er/est）
2. Talking about animals and
describing nature.summaryUnit 4 Our WorldTopic 1 What’s the strongest animal on the farm?Section BCheck your sounds Look at the pictures and write down the words according to the sounds. Then listen and check the vowels and stress./ frDg /
______/ ‘Insekt /
_______/ sneik /
_______ froginsectsnake3录音3-P84/ fDks /
______/ gu:s /
_______/ kau /
_______/ ?i:p /
_______ foxgoosecowsheepAs we know, plants and animals are important to us.be important to sb.众所周知Key pointsWe share the same world with them.
share … with … 与……分享……
Eg： They are sharing a piece of long bread.
They often share beautiful music with each other.Which do you like better, plants or animals?
like … better
更喜欢……
I like apples better.
I like cats best.
like … best
最喜欢……
I like bananas best.3. A: Do you like the countryside?
B: Yes, / I like it very much / because / the air is
fresher, the sky is bluer/ and the rivers are
clearer there. You often pause when you see a comma or finish a sense group. Talk about plants and animals in nature.
2. Useful expressions:
like better
like best
share … with …; give … joy
feed on; be important to
summaryUnit 4 Our WorldTopic 1 What’s the strongest animal on the farm?Section CRainforests cover 6% of the earth’s
surface.six percentKey points数词 % +可数名词复数可数名词单数 / 不可数名词 Eg: 50% of the students in our class are boys.
70% of the earth is water.成千上万的成百上千的
成百万上千万的，数以百万计的hundreds ofmillions ofThousands and thousands of
animals live in rainforests.3. Many of them live in the trees over 30 meters
from the ground.
over = more than 多于， 超过
eg: Our class has _________________ 50 students.
4. They play an important part in controlling the
climate.
play an important part ( in sth.)
在某事中起重要作用； 参与（某事）
Eg: 他积极参加班级活动。
He _________________________ class activities. over/more thanplays an active part in 5. But now rainforests are becoming smaller and
smaller.
“形容词比较级 + and + 形容词比较级” 越来越……
Eg. 天气变得越来越暖和了。
The weather gets warmer and warmer.
中国变得越来越强大。
China becomes stronger and stronger.越来越小1. Learn to describe the situation of
rainforests and the importance to the earth.2. Talk about how to protect rainforests.
3. useful phrases: thousands of
control the climate
over = more than
play an important part ( in sth.)
smaller and smaller summaryUnit 4 Our WorldTopic 1 What’s the strongest animal on the farm?Section D= the southwest of China 中国西南部 Pandas live in the forests and
mountains of Southwest China.Key pointsnortheastsoutheastsouthwestnortheastnorthwestsouthwest2. Now they are in danger because some humans kill whales and make the ocean water dirtier.处于危险状态
GrammarComparative and superlative degrees of adjectives (Ⅰ)fresherbluerclearerquieter thannicestfattest laziestsmaller and smallerFunctions WhichbetterbetterWhymakesharewithbeautiesUnit 4 Our WorldTopic 2 How can we protect
ourselves from the earthquake ? Section A The telephone is useful.telephoneThe mobile phone is ___________ than the telephone. mobile phoneThe computer is _______________ of the three. computerLet's talkmore usefulthe most usefulterriblecoldtoothachefeverAsk and answer with your partner according to 2b.Key points lose one’s life 失去生命
protect sb. from 保护……免受……
Eg: 戴太阳镜可以保护眼睛不受伤害。
Wearing sunglasses can ____________________
the sunshine.
3. ask sb. for help 向某人求助
Eg: 当我们处于危险时，可以向警察求助。
We can _____________________ when we are in
danger.protect our eyes fromask the police for helpdelicious—
interesting—
carefully—
popular—
careful—
more delicious— the most delicious more interesting—the most interestingmore carefully—the most carefullymore popular—the most popularmore careful—the most careful多音节词和部分双音节词：
在词前加more/the most。sum up2aStudy the rules and complete the table.翻译句子。
１.我的学校比你的学校更漂亮。
２.我认为英语比数学更有趣。
３.鲨鱼是最危险的动物。
４.他的病更严重了。My school is more beautiful than yours.　I think English is more interesting than math.Sharks are the most dangerous animals.　His illness is more serious.　ExercisesChoose the best answers.
The building is ____ than that one.
A. more taller B. very taller C. taller D. so taller
2. Everything is getting ________.
A. good and better B. better and better
C. best and better D. best and best
3. Which is ______ , the moon or the earth ?
A. big B. very bigger C. the bigger D. biggersummaryThe phrases of the dialog : lose one’s life 失去生命
protect sb. from 保护……免受……
ask sb. for help 向某人求助The comparative and superlative of adjectives:
more + adj. the most + adj. Unit 4 Our WorldTopic 2 How can we protect
ourselves from the earthquake ? Section B Key points1.失去某人的家园
2.跑出……外
3.保持冷静 lose one’s home run out of stay calmUnit 4 Our WorldTopic 2 How can we protect
ourselves from the earthquake ? Section C Read 1a and write down the key words under each picture. Retell what we should do based on the key words.If you are indoors stay under a strong table or desksit on the floor in a doorway or close to the wall1b录音1a-P93Listen to 1a and write down the key words under each picture.If you are indoorsprotect your head and neck with your arms stay away from the windowIf you are outdoorsmove to clear areasget away from buildings and trees be careful of
fallen power linesKey pointsKnowing some ways to protect yourself will help to keep you safe in an earthquake.
了解一些（在地震中）保护自己的方法，将会帮助你在地震中保护自己的安全。
keep sb. / sth. + adj. 保持 / 护某人 / 物 ……
Eg: keep our classroom clean 保持教室清洁
keep us healthy 保持健康2. … or close to a wall is safer …
close to 靠近 / 接近 （介词短语）
Eg: You can ______________ the fire and you will feel warmer.
3. Stay away from windows …
stay away from = get away from 远离……
Eg: 我们应该远离一切危险的东西。
We _________________________ everything
dangerous.sit close toshould stay away from4. The danger is not over when the strong shaking stops.
当强震停止时，危险还没有结束。
be over 结束
Eg: _________________ , let’s have a rest.
课上完了，让我们休息吧。
The meeting __________ , but he was still sleeping.
会议结束了，他还在睡觉。Class is overwas oversummary We learn : some phrases.
keep sb. / sth. + adj.
close to
stay away from = get away from
be over
2. We know some ways to protect ourselves in an earthquake.Unit 4 Our WorldTopic 2 How can we protect
ourselves from the earthquake ? Section DWatch the flash and read 1, then find out the phrases in the passage .1. five million
2. with the help of …
3. the whole nation
4. rebuild their home
5. return to normal life视频1-P95五百万
在……的帮助下
全国
重建他们的家园
恢复正常的生活Key pointsFive million people lost their homes.
基数词修饰million, hundred, thousand时，只能用单数形式（表示确数）。
two hundred
three thousand
seven million
当hundred, thousand, million 与of连用时，一定要用复数（表示概数）。
hundreds of 数百，数以百计
thousands of 数千，成千上万 millions of 数百万两百
三千
七百万2.But with the help of the whole nation …
with the help of sb. / sth.
= with one’s help
Eg:在警察的帮助下，他终于找到了他的小狗。
____________________________________, he found his little dog at last.
在电脑的帮助下，他知道了很多的东西。
_________________the computer, he knows a lot of things.在……的帮助下With the help of the police/With the police’s helpWith the help ofSummaryRead through Sections A-C carefully and complete each sentence
below.more seriousthe most seriousmore usefulthe most usefuldangerousthe most importantThe safestGrammarComparative and superlative degrees of adjectives (Ⅱ)FunctionshithearHowfromUnit 4 Our World Topic 3
The Internet makes the world smaller.Section ADo you like doing some shopping on the Internet?在网上1. 在互联网上
2. 和……聊天
3. 面对面
4. 形成
5. 开始使用Key points on the Internet
chat with
face to face
come into being
make it into useKey points5. The Internet makes the world smaller.主语谓语宾语宾语补足语 Eg: 这部电影使我们很开心。
这个故事使我们哭了。
我们应该保持教室干净。
宾语补足语: 放在宾语之后，用于补充说明宾
语做某事或宾语怎么样。The film made us very happy.This story made us cry.We should keep our classroom clean. see/play computer gamesThe man saw the boy playing computer games. see sb. doing sth.
看见某人正在做某事 ask/close the windowsThe teacher asks his students to close the window.The key phrases of this lesson.Summary on the Internet
chat with
face to face
come into being
make it into use
let sb. do sth.
see sb. doing sth.Unit 4 Our World Topic 3
The Internet makes the world smaller.Section BFrom Section A, we knew something about the uses of the Internet.We can do shopping at home.From Section A, we knew something about the uses of the Internet.The Internet can help us find the way.From Section A, we knew something about the uses of the Internet.We can enjoy movies on the Internet.From Section A, we knew something about the uses of the Internet.We can study on the Internet.From Section A, we knew something about the uses of the Internet.We can chat with our friends.From Section A, we knew something about the uses of the Internet.We can listen to music to relax.From Section A, we knew something about the uses of the Internet.We can read books we like.From Section A, we knew something about the uses of the Internet.We can learn to cook.Key points I’m sure you can find lots of information on the Internet now.
be sure ( that ) + 句子 确信…… ; 肯定……
I’m not sure if that is a good idea.
be not sure if/whether + 句子 不确定……是否……
Eg : 我确信他会来参加我的生日晚会。
I _______________ he will come to my birthday party.
他不确定他是否去我的生日晚会。
He ____________________ he will go to my birthday
party.am sure ( that )is not sure if/whetherDo the exercisesChoose the best answer.
Computers are very useful to us, but students shouldn’t ____ too much time ___ them.
A. spend; in B. cost; /
C. spend; on D. take; to
2. We can shop ___ the Internet ____ going to the shops.
A. on; without B. in; without
C. in; for D. on; with3. – We can use QQ to chat online.
--Really ? Could you please show me ______ it ?
A. what to do B. how to do
C. when to do D. why to do
4. I’m _____ sure _____ computers can work in our heads well .
A. /; whether B. not; that
C. not; if D. quite; whetherSummaryWe master the drills :
be sure that +句子
be not sure if/whether + 句子Unit 4 Our World Topic 3
The Internet makes the world smaller.Section CKey points 1. become an important part of …
变成……重要的一部分
Eg: 那只小狗变成了那位老人生活中的重要部分。
The little dog ___________________________ the
old man’s life.
2. Some people use the Internet to hurt others and
get money by cheating.
一些人用互联网伤害他人并通过欺骗来获取钱财。became an important part of通过use sth. to do sth. 使用某东西去做某事
= use sth. for doing sth.
Eg: 他不会用筷子吃饭。
He can’t _____________________ eat.
He can’t ____________________ eating.use chopsticks touse chopsticks for3. The Internet can change our lives for the better,
but we should use it carefully.
因特网会使我们的生活变得更好，但我们应该恰当地使用它。
for the better 向着较好的情况（转变）
for the + adj.比较级 向着较……的情况转变
Eg: 我希望天气很快就会好转。
I hope the weather will soon change _____________ .
五月里，她的病情恶化了。
In May, her illness took a turn ______________ .for the betterfor the worse4. The Internet makes our lives more interesting.
This helps make life easier.

make sb. / sth. + 形容词比较级
使某人 / 某物……
Eg: 那只小狗使那位老人的生活更开心。
The little dog makes the old man’s life happier.找出宾语补足语的句子。Do the exercises.Choose the best answer.
— ____ you ____ the Internet is good for us ?
— Yes, of course.
A. Are; sure B. Would ; mind
C. Are; believe D. Are ; think
2. We can use the Internet for _____ movies. It is very wonderful.
A. watch B. watching C. to watch D. watchedSummaryWe master some phrases:
1. become an important part of …
变成……重要的一部分
2. use sth. to do sth. 使用某物去做某事
= use sth. for doing sth.
3. for the better 向着较好的情况（转变）
for the + adj.比较级 向着较……的情况转变
4. make sb. / sth. + 形容词比较级
使某人 / 某物……
Unit 4 Our World Topic 3
The Internet makes the world smaller.Section DReviewWhat can we do on the Internet?Internet Send e-mails.
Find information.
Listen to music.
Watch movies.
Chat with our friends.
Play computer games.
Study English.Key pointsadvice about sth. / doing sth.
关于……的建议
Eg: 医生给了他一些关于保健的建议。
The doctor gives him some advice about keeping healthy.
老师应该经常给学生一些关于学习的建议。
Teachers should often give students some advice about study.2. change English into Chinese
把英语变成汉语
change sth. into sth.
把……变成……
Eg: 我们应该把知识变成力量。
We should ________________________ power.
请把这些冰变成水。
Please ____________________ water.change knowledge intochange the ice into look up new words
查找新单词
look up
查找…… (代词it , them 作宾语时，放在短语中间)
Eg:如果你不认识这个单词，可以在词典里查找。
If you don’t know the word, you can __________
in the dictionary.look it upGrammarSubject + Vt. + Object + Object complementFunctionsDo the exercises1.Pens are helpful to humans. Students use pens for _______.
A. write B. writes C. wrote D. writing
2.—_______ is not easy to draw pictures with this pen.
—You are right.
A. There B. This C. That D. It
3.—Where are you going to work next year?
—_______ Maybe in Hefei or Nanjing.
A. I’m not so sure. B.I think so.
C. That’s a good idea. D.I hope not.
4.Don’t make me _______ the clothes. I’m too tired!
A. washing B. to wash C. wash D. washedChoose the best answer.选择方框中的句子完成对话，其中有两项多余。
Kangkang: Hi, Michael. How often do you use the Internet?
Michael: Very often. ____
Kangkang: I never use the Internet. ___
Michael: A lot of things. I often listen to music. ___
Kangkang: Are you sure the Internet is good for us?
Michael: __ It can help us do a lot of things. We can find
some information about places and jobs. __ But we
shouldn’t spend too much time on it.A. I also play games and find some information about study.
B. Yes, I’m sure of that.
C. What about you?
D. It can make our life easier.
E. What do you often do on the Internet?
F. I’m quite sure.
G. Guess what!CEABDSummary1. Grammar of this topic：
Subject + Vt. + Object + Object complement
2. The phrases of this topic.
3. We know how to protect ourselves from
disasters.