Unit 13　We’re trying to save the earth! 练习课件(共77张PPT)

(共77张PPT)
Unit 13　We’re trying to save the earth!
第1课时　Section A(1a-2d)
阅读课本Activity 2d,根据课文内容回答下列问题。
1.What are they talking about
. 　
2.How should we cut down air pollution
. 　　
3.What are other advantages of bike riding
　 　
They are talking about how to cut down air pollution and waste pollution.
We should take the bus or subway,or ride a bike instead of driving.
It’s good for health and it doesn’t cost anything.
4.What should we do to cut down waste pollution
　 . 　
.
_
Bring a bag to go shopping,never take wooden chopsticks or plastic forks when we buy takeaway food,throw rubbish in the bins and keep public places clean and beautiful for everyone.
教材原句1 Everyone in this town should play a part in cleaning it up!
镇上的每一个人都应该参与把它打扫干净!(教材P97)
play a part in意为“参与;在……方面起作用”,后接名词、代词或动词-ing形式。其同义短语为play a role
in。
Computers play an important part in our daily life.电脑在我们的日常生活中起着重要作用。
1.每个人都应该在环保方面发挥作用。
Everyone should 　 　 the
environmental protection.
2.Everyone in the class is asked to play a part in 　　　 the
classroom clean.
A.keep B.keeps C.keeping D.kept
play a part in∕play a role in
教材原句2　Well,to cut down air pollution,we should take the bus or subway instead of driving.
嗯,为了减少空气污染,我们应该乘公共汽车或地铁而不是开车。(教材P98)
（1）
[温馨提示] cut down为“动词+副词”结构的短语,人称代词作宾语时,人称代词须放在 cut 与 down之间。
The tree is dead.Let’s cut it down.这棵树死了。让我们把它砍倒吧。
(2)辨析:instead of与instead
instead of 介词短语,后接名词、代词或动词的-ing形式 The boss praised Jill instead of kicking him off.
老板表扬了吉尔而不是把他开除了。
instead 副词,常位于句末,位于句首时,其后用逗号与句子隔开 Eat less junk food.Eat healthy food instead.
少吃垃圾食品。而是吃健康的食物。
1.The young should do meaningful things instead of 　 .　
(play) with phones all day.
2.The government should close down the factories to 　　　 .
the pollution.
A.cut down B.put down C.cut off D.put off
3.我表弟去年夏天做了志愿者工作,并没有玩电脑游戏。
My cousin volunteered last summer 　 　 playing
computer games.
playing
instead of
教材原句3　There are other advantages of bike riding.
骑自行车还有其他的好处。(教材P98)
1.In 1964,Yuan Longping found a natural hybrid rice plant
that had many a　 over others.
2.(2023武汉)—Peter was picked out to be on the school
volleyball team.
—His height gives him a big 　　　.
A.situation B.challenge
C.achievement D.advantage
dvantages
Ⅰ.根据语境,用括号内所给单词的适当形式填空
1.These 　 　(fisherman) make a living by fishing.
2.There is a 　 　(wood) table in the middle of the
room.
3.If the air is 　 　(pollute),it will be dangerous
and bad for our health.
4.I don’t want to keep a pet cat.It has many 　 .
(advantage).
5.Can you find any 　 　(different) between the
two pictures
fishermen
wooden
polluted
disadvantages
differences
Ⅱ.根据汉语意思完成英语句子(一空一词)
6.不要总是熬夜。不健康的生活方式可能会导致疾病。
Don’t always stay up late.An unhealthy lifestyle can
　 　 　 　 illnesses.
7.种植更多的树可以减少空气污染。
Planting more trees can 　 　 　 　 air pollution.
8.人人都应该参与到节约用水活动中来。
Everyone should 　 　 　 　 　 　 　 　 　 　.
water.
to
lead
cut
down
play
a
part
in
saving
9.过去这个湖底满是垃圾。
The bottom of the lake 　 　 　 　 　 　 rubbish in
the past.
10.聚会结束后,请把教室打扫干净。
Please 　 　 　 　 the classroom after the party.
was
full
of
clean
up
Ⅲ.教材理解
请阅读下面短文,在所给的每个空格中填入一个形式正确、意义相符的单词。
[责任担当]An interviewer is talking to Jason and Susan about environmental problems.Jason thinks one problem is that the air is badly polluted.He hardly ever sees blue skies anymore.Susan says she used to see the stars clearly.11. 　 has caused this problem Susan thinks there are more cars on the 12. 　 these days.And Jason thinks factories that 13.　 　 coal also pollute the air with a lot of black smoke.Susan says there’s too much rubbish and waste 14.　 　 the streets.Susan adds that
burn
in
What
road
they’re also littering in public 15.　 　,for example,during picnics in parks.That is turning beautiful places 16.　 　 ugly ones.These are serious problems for
our environment.
places
into
What can we 17.　 　 to protect the environment In Jason’s opinion,to cut down air pollution,we
18.　 　 take the bus or subway instead of driving.Susan thinks riding a bike is also a good idea.The advantages of bike riding are that it’s good for our health and it doesn’t cost anything.To solve waste pollution,Susan believes that simple things
19.　 　 bringing a bag to go shopping can help.And she started doing that a year ago.Jason said he never takes wooden chopsticks or plastic forks when he buys takeaway food.All in all,our actions can make a 20.　 　 and
lead to a better future.
do
should
like
difference
第2课时　Section A(3a-3b)
阅读课本Activity 3a,根据课文内容回答下列问题。
1.What do people kill sharks for
　 　
2.Why do people think sharks can never be endangered
　 　
Because they are the strongest in their food chain.
3.What will happen if sharks’ numbers drop too low
　 　
It will bring danger to all ocean life.
4.How many sharks are caught and traded every year
　 　
Around 70 million.
They kill sharks for their fins.
教材原句1　 This is not only cruel,but also harmful to the environment.
这不仅残忍,而且对环境也有害。(教材P99)
加后缀-ful构成的形容词:
1.Smoking 　 　 　 　 　　 ∕　 　 　 　 　 　∕
　 　 　 　 　 .your health.Please give it up.
(对……有害)
2.Charlie,don’t read in the sun! It 　　　 your eyes!
A.is good for B.is harmful to
C.is cruel to D.is sad for
3.The boy is so 　 　(care) that he makes few mistakes
in English grammar.
is
harmful
to
is
bad
for
does
harm
to
careful
4.Everyone can be a 　 　(use) person to make our
motherland stronger.
useful
教材原句2　Many believe that sharks can never be endangered because they are the strongest in their food chain.
许多人认为鲨鱼永远不会濒临灭绝,因为它们在它们的食物链中是最强的。(教材P99)
辨析:endangered,dangerous与danger
endangered 形容词,意为“濒危的” Whales are endangered.鲸鱼濒临灭绝。
dangerous 形容词,意为“危险的” It’s dangerous to swim in the lake.在湖里游泳是很危
险的。
danger 名词,意为“危险” His life is in danger.他有生命危险。
1.These beautiful animals are 　 　(danger).We
must protect them.
2.Some wild animals need our protection,because they are in
great d　 now.
3.The police usually help people out of 　 　(danger)
situations.
endangered
dangerous
anger
4.—Why do some whales have to 　　　
—Because humans catch whales for meat,fat and oil.Some
of them are 　　　.
A.protect;dangerous B.protect;endangered
C.be protected;dangerous D.be protected;endangered
教材原句3　So far,no scientific studies have shown that shark fins are good for health,so why eat them 到目前为止,没有科学研究表明鱼鳍对健康有益,那么为什么要吃它们呢 (教材P99)
so far意为“到目前为止;迄今为止”,可与现在完成时连用。
I have traveled to 10 countries so far.到目前为止,我已经去过10个国家旅游了。
1.So far,they 　 　(build) four new schools in that
poor area.
2.So far,red tourism(旅游业) 　　　 quickly and it’s
becoming more and more popular.
A.developed B.will develop C.has developed
3.到目前为止,我们还没有收到她的电子邮件。
We haven’t got her e-mail 　 　 　 　.
have built
so
far
Ⅰ.根据语境,用括号内所给单词的适当形式填空
1. 　 　(science) studies have shown that enough
sleep is good for our health.
2.—Ms.Huang,what would you like for your afternoon tea
—Just a cup of coffee 　 　(with) any sugar or
milk.
3.Jim is no 　 　(long) afraid of making new friends at
school now.
Scientific
without
longer
4.This is an 　 　　(danger) animal.We should try to
save it.
5.As Chinese,we should take an active part in the 　 .
(protect) of the environment.
endangered
protection
Ⅱ.根据汉语意思完成英语句子(一空一词)
6.卡尔从地板上捡起一些垃圾然后把它扔进了垃圾桶。
Carl 　 　 　 　 some litter on the floor and
　 　 　 　 　 　 the bin.
7.烧煤对环境是有害的。
Burning coal 　 　 　 　 　 　 the environment.
8.老虎和狮子处于所有陆地动物的食物链的顶端。
Tigers and lions are 　 　 　 　 　 　 　 　 the
food chain to all land animals.
picked
up
threw
it
into
is
harmful
to
at
the
top
of
9.切掉大象的牙齿是很残忍的。
It’s cruel to 　 　 　 　 the elephant’s teeth.
10.这家商店的衣服不仅便宜而且好。
The clothes in this store are 　 　 　 　 cheap
　 　 　 　 good.
cut
off
not
only
but
also
Ⅲ.教材理解
请阅读下面短文,在所给的每个空格中填入一个形式正确、意义相符的单词。
Many have heard of shark fin soup.But do you realize that you’re killing a whole shark each time you enjoy a(n)
11.　 　 of shark fin soup
bowl
12.　 　 people catch sharks,they cut off their fins and throw the sharks back into the ocean.This is not only cruel,but also 13.　 　 to the environment.Sharks are at the 14.　 　 of the food chain in the ocean’s ecosystem.If their numbers drop too low,it will bring
15.　 　 to all ocean life.Around 70 million sharks are 16.　 　 and traded in this industry every year.The numbers of some kinds of sharks have fallen 17.　 　 over
90 percent in the last 20 to 30 years.
danger
caught
harmful
When
by
top
Environmental protection 18.　 　 around the world,such as WildAid and the WWF,are teaching the public about “finning”.They have even asked governments to develop laws to stop the 19.　 　 of shark fins.So far,no scientific studies have shown that shark fins are 20.　 　 for health,so why eat them Help save the
sharks!
groups
sale
good
第3课时　Section A(Grammar Focus-4c)
单元语法突破
一、现在进行时
构成 am∕is∕are+v.-ing(动词的现在分词)
句式 肯定句 主语+am∕is∕are+v.-ing+其他.
否定句 主语+am∕is∕are+not+v.-ing+其他.
一般疑问句 Am∕Is∕Are+ 主语+v. -ing... 肯定回答:Yes,主语+am∕is∕are.
否定回答:No,主语+am∕is∕are+not.
用法 表示此时此刻正在进行的 动作 I am reading English now.现在我正在读英语。
表示现阶段正在进 行的动作或持续的状态 They are studying hard this term.
这学期他们学习一直很努力。
表示位置移动的动词go,leave,fly, arrive,start等用现在进行时表将来 I am going to Beijing this Sunday.
本周日我将要去北京。
二、现在完成时
用法 标志词 例句
表示过 去的经历 lately,recently,just,already, yet,ever,never before,so far, these days Has it stopped raining yet 雨已经停了吗
I have never heard of the story before.
我以前从来没听说过这个故事。
表示动作的 持续 for+时间段 They have lived in Beijing for five years.
他们住在北京五年了。
since+时间点 They have lived in Beijing since 1995.
从1995年起他们就住在北京。
since+一般过去时的句子 I have worked here since I left school.
我毕业后就一直在这里工作。
in∕over∕for the past∕ last+ 一段时间 China has changed greatly in the past few years.
中国在过去的几年里发生了很大的变化。
表示动 作的反复 表示次数的词:once, twice,three times等 I have seen the movie twice.
这部电影我已经看过两遍了。
表示第几次 做某事 It is...time that... It is my first time that I have visited China.
这是我第一次游览中国。
表示做过的 最…… This is the+形容词的最高级+名词+that... This is the most interesting film that I have ever seen.
这是我看过的最有趣的电影。
辨析:have∕has gone to,have∕has been to和have∕has been in
have∕has gone to 表示刚去了某地,说话时某人已经到了该地且不在说话地点,总之,现在还没有回来 Jim has gone to London.
吉姆刚去了伦敦。
have∕has been to 表示去过某地,说话时某人已从该地回来 Have you been to Beijing before
你以前去过北京吗
have∕has been in 表示已在某地(待了多 久),常与表示一段时间的状语连用 He has been in China for two
years.
他在中国已经两年了。
三、情态动词
基本 用法 情态动词表示说话人的态度,不能单独作谓语,必须和动词原形连用构成谓语 I can play the guitar.我会弹吉他。
They should tell their parents first.
他们应该先告诉他们的父母。
情态动词没有人称和数的变 化,后接动词原形 He can speak French.他会说法语。
She must leave now.她现在必须离开。
推测 用法 must一定;必定 表示非常肯定的推测,只用在肯定句中 She must be tired after long hours’ work.
长时间工作后,她一定累了。
may∕might∕could 或许;可能 表示不太肯定的推测 He might go to the movies,but I’m not
sure.
他可能会去看电影,但我不确定。
can’t不可能;一定不 表示否定推测 He can’t be in the
office now.
他现在一定不在办公室里。
四、被动语态
1.构成:助动词be+及物动词的过去分词
2.各种形式被动语态的结构(以动词do为例)
一般现在时 am∕is∕are+done Trees are planted in spring.春天栽树。
一般过去时 was∕were+done He was punished.他受到了惩罚。
现在进行时 am∕is∕are+being+done A bridge is being built.正在修一座桥。
过去进行时 was∕were+being+done The room was being cleaned at 9:00 yesterday.
昨天9点房间正在被打扫。
一般将来时 will∕shall∕be going to+be+done A new library will be built next year.
明年将会建成一座新的图书馆。
现在完成时 have∕has+been+done The dog has been fed.狗已经被喂过了。
过去完成时 had+been+done The fire had been put out when I got there.
当我到那里时,火已经被扑灭了。
含有情态动词 can∕may∕must/ should...+be+done Children should be educated to care for
others.
应该教育孩子们关心他人。
( )1.—Do you like poems
—Yes.I 　　　 read poems when I was 5.
A.must B.can C.could
( )2.As we know,sixteen-year-olds 　　　 drive a car in
our country.
A.must B.could C.mustn’t D.couldn’t
Ⅰ.单项选择
C
C
( )3.(2023河北)Some students 　 　　 Taiji over there.
Let’s go and join them.
A.play B.played
C.are playing D.were playing
C
( )4.Sorry,I 　　　 a mistake.Let me correct it.
A.will make B.am making
C.was making D.have made
( )5.—Congratulations!You 　　　 big progress in the
last three years.
—Thank you,Mr.Li.I’ll never forget the good times
in Junior High.
A.make B.made C.have made D.will make
D
C
( )6.—I haven’t seen Li Ming for days.Why
—He 　　　 Beijing.He will come back next month.
A.has been to B.has gone to C.will go to
( )7.The book 　　　 be Mary’s.We can see her name on it.
A.need B.must C.can’t D.needn’t
( )8.(2023连云港)To make the environment much better,more trees 　　　 next year.
A.plant B.will plant
C.are planted D.will be planted
B
D
B
Ⅱ.用括号内所给单词的适当形式填空
9.The design of Bing Dwen Dwen 　 　(choose) from
over 5,800 works.
10.—Jenny,have you seen Anna I can’t find her anywhere.
—Yes.She 　 　(search) the bushes for her
missing dog.
11.Jack has just moved here and it is the third time he
　 　(lose) his way.
was chosen
is searching
has lost
第4课时　Section B(1a-2e)
阅读课本Activity 2b,根据课文内容回答下列问题。
1.Where does Amy Hayes come from 　
　
She comes from the UK.
2.What are her windows and doors made of
.
.
They are made of old buildings around her town that were
pulled down.
3.Who puts old clothes to good use
.
Jessica Wong.
4.When did Wang Tao set up his own business in Shanghai
　 　
Four years ago.
5.Why does Wang Tao want to set up a “metal art” theme park
.
.
Because he wants to show people the importance of environmental
protection.
教材原句1　 Do you often throw away things you don’t need anymore
你经常扔掉你不再需要的东西吗 (教材P102)
throw away是“动词+副词”结构的短语,意为“扔掉;抛弃”。当宾语为名词时,可置于该短语中间,也可置于该短语后面;当宾语为人称代词时,只能置于throw与away中间。
These bottles can be used again.Don’t throw them away.这些瓶子可以再使用。不要把它们扔掉。
由away组成的其他短语:
put away收好;放好　　　give away捐赠　　take away取走;拿走　　　wash away 冲走 run away逃跑 stay away from远离
pass away去世
1.Mr.Li has 　　　 thousands of books to a children’s
home so far.
A.put away B.thrown away
C.given away D.taken away
2.—Don’t 　　　 the waste paper.We can collect and
recycle it.
—You are right.Everyone should play a part in
protecting the environment.
A.blow away B.put away
C.throw away D.take away
3.—What are they doing
—They are discussing what to 　　　 to the school in the
villages.
A.give away B.throw away
C.clean up D.cut up
4.在扔掉废物前进行分类是必要的。
It’s necessary to divide the waste into different kinds
before we 　 . 　 　 　.
it
away
throw
教材原句2　The windows and doors come from old buildings around her town that were pulled down.窗户和门来自她城镇周围被拆毁的旧建筑。(教材P102)
由down组成的其他短语:
write down 写下;记录下　　　take down 记下;拆除;往下拽　　　put down 放下
cut down 砍倒;削减 turn down 拒绝;调低
break down 坏掉;出故障
1.My car has b　 down.Will you please give me a ride
2.They are 　　　 the old cinema.A new shopping center will
take its place.
A.writing down B.pulling down
C.falling down D.turning down
roken
3.—Why did he 　　　 your invitation that day
—Because he had an important meeting.
A.turn down B.put away C.turn up D.cut down
4.毕业典礼上,学生们在纪念册上写下了自己的名字。
Students 　 　 　 　∕　 　 　 　 their names
in the album on graduation ceremony.
wrote
down
took
down
教材原句3　...and she has also set up a website to sell
them online.
……她还建立了一个网站,在网上销售它们。(教材P102)
set up意为“成立;建立;创立;开办(学校、公司、机构等),是“动词+副词”构成的短语,人称代词作宾语时,须放在set与up之间。
He set up a reading club.他成立了一个读书俱乐部。
This is our new company.Mr.Zhang set it up last month.
这是我们的新公司。它是张先生上个月成立的。
由up构成的常见短语:
take up学着做;占据　　　 put up举起;搭建;张贴　　　
look up查阅;向上看
give up放弃 cheer up使高兴起来 stay up熬夜　　　
clean up打扫干净
get up起床 show up赶到;露面 grow up 长大　　　tidy up整理
1.[跨地理学科]—It’s reported that Chinese researchers
climbed to the top of Qomolangma on May 4th.
—Yes.And they also 　　　 the world’s highest weather
station.
A.took up B.gave up C.set up D.used up
2.—Tom,can you 　　　 your room It’s a bit of a mess.
—Sorry,Mom.I’ll do it right now.
A.tidy up B.put up C.look up D.stay up
3.(2023扬州)Paper cut-outs of “double happiness” are
often 　　　 in the married couple’s home to bring good
wishes.
A.put back B.put up
C.put on D.put off
4.他的成就之一就是创立了这家公司。
One of his achievements is to 　 　 　 　 this
company.
set
up
Ⅰ.根据语境,用括号内所给单词的适当形式填空
1.This is a very 　 　(use) book.You should read it
carefully.
2.She can come up with some 　 　(create) ways to
finish the project.
3.Tom loves skating.He thinks skating can bring him much
fun and 　 .(happy).
happiness
creative
useful
4.[跨语文学科]The saying “One tree can’t make a forest”
tells us the (important) of teamwork.
5.Mom joined our little group and introduced 　 (she)
to our new friends.
importance
herself
Ⅱ.根据汉语意思完成英语句子(一空一词)
6.这艘船是用废塑料建造的。
The boat was built 　 　 　 　 waste plastic.
7.她把她的旧玩具和书都捐了出去,而不是把它们扔掉。
She gave away her old toys and books 　 　 　 　 .
　 　.　 .　 　.
out
of
instead
of
throwing
them
away
8.这座旧桥太危险了,应该把它拆掉。
The old bridge is 　 　 dangerous 　 　 it should be
pulled down.
9.我希望你可以好好利用每一分钟。
I hope you can 　 　 every minute 　 　 　 　.
　 　.
10.你能帮我把玻璃杯倒过来吗
Can you help me 　 　 my glass 　 　 　 　
so
that
put
to
good
use
turn
upside
down
Ⅲ.教材理解
请阅读下面短文,在所给的每个空格中填入一个形式正确、意义相符的单词。
[创造思维]Nothing is a waste if you have a creative mind.Here are some good examples of rethink,reuse and recycle.
Amy Hayes is an unusual woman.11.　 　 lives in a house in the UK that she built herself out of rubbish.Many of the old buildings in her neighborhood were pulled down when Amy built her house.She put all the rubbish and old things to good 12.　 　.She even put an old boat at the top of her house.Amy recently won a
prize from the Help Save Our Planet Society.
use
She
Amy Hayes is not the only one 13.　 　 is good at recycling.Jessica Wong from Hong Kong is also very creative.She uses old clothes that people don’t
14.　 　 anymore to make bags.Although her
15.　 　 are made of old clothes,they are cute and useful.She 16.　 　 a small shop and she has also set up a website to 17.　 　 her bags.She plans to write a
book 18.　 　 new ways to use old clothes.
who
wear
bags
opened
sell
about
Wang Tao is known 19.　 　 using iron and other materials from old cars to make beautiful art pieces.His works not only remind us of the importance of environmental protection,20.　 　 also bring us happiness.He thinks even cold,hard iron can be brought back to life with
a little creativity.
for
but