2021-2022学年牛津版（深圳 广州）英语七年级下册 Unit 4 Save the trees. 导学案（无答案）

2021-2022广州七年级英语下册Unit 4 导学案
Unit 4 Save the trees
学习目标
Words v. save拯救 discuss讨论fight (过去式fought)与……作斗争 produce产生；生产 imagine想像；设想dig (过去式dug)挖carry搬；扛；背 n. pine 松树 branch 树枝 example 例子 gas 气体 oxygen 氧气 furniture 家具 disease 疾病 hole 洞 * root 根 * container 容器 adj. harmful有害的major主要的convenient方便的 prep. against 反对
Phrases and expressions fight against 与……作斗争 take in 吸收 come from 来自 for example例如 in fact (补充细节)确切地说 look around环顾四周 (be) made of由……制成 cut down砍倒(树木) millions of大量的；数以百万计的 pine tree松树 (be) good for对……有用，有好处 Tree Planting Day 植树节 because of 由于 as a result 果；因此 (be) in danger处在危险中
Useful sentences They are home to birds and animals. All of the above. ... help us in many ways. They keep the air cool and clean. They’re major fighters against air pollution. ... make our lives more convenient. I can’t imagine a world without trees. We should stop doing this if we don’t want ... It covers ... square kilometres of... and spreads across ... countries. We must do our best to ...
Grammar The present continuous tense
Now you can… listen for specific information about pine trees talk about the importance of trees describe some pictures
精讲精练
Reading
(教材 P44—P47)
课文讲解
1 They help fight against pollution.它们有助于抵抗污染。
fight v.与……作斗争。如：
She encouraged me to fight against the sickness.她鼓励我与疾病作斗争。
辨析：fight against 和 fight for
fight against意思是“与……抗争”；fight for意思是“为……而战；奋斗”。如：
These students fight against traditional ideas.这些学生反对传统观念。
I will fight for my dreams.我将为梦想而奋斗。
against prep.反对。如：
Are you for or against my plan 你对我的计划是赞成还是反对？
2 They take in harmful gases from the air and produce oxygen for us to breathe.它们吸收空气中的有害气体，并且产生供人呼吸的氧气。
take in吸收。如：
The root of plants takes in water from the earth.植物的根从土壤中吸收水分。
Cats’ eyes can take in more light than our eyes, so they can see clearly at night.
猫的眼睛比我们的眼睛吸收的光线多，因此猫在夜间看得很清楚。
回顾：take part in参加 take a trip去旅行 take photos拍照
take care of照顾；照料 take exercise锻炼身体 take a rest休息一会儿
take medicine 服药 take a message 传递信息
畤 harmful adj.有害的。be harmful to…对……有害。如：
Eating too much cold food is harmful to your health.吃太多冷冻食物对你的健康有害。
It is harmful to your eyes to read on the bus.在公交车上看书对眼睛有害。
3 Many of the things in our daily lives come from trees.我们生活中的许多东西都来自树木。
come from来自。如：
—Where do you come from 你来自哪里？
—I come from Shanghai.我来自上海。
Where does the sound come from 这个声音从哪儿传来的？
4 For example, paper and pencils.例如，纸张和铅笔。
example n.例子。for example 例如。如：
take an example 举例
Matthew likes many sports, for example, playing basketball.马修喜欢许多运动，例如，打篮球。
辨析：for example 和 such as
for example用于举例说明时，一般只以同类人或物中的“一个”为例，作插入语，用逗号隔开。可置于句首、句中或句末。其后可接名词、词组或句子；such as表示“列举”，通常列举同类人或物中的“几个”为例，但不是全部。其后没有逗号。位于所列举事物之前。其后只可接名词词组。如：
Miss Wang, for example, is an excellent teacher.例如王老师，她是一位优秀的老师。
I have lots of hobbies, such as swimming, reading and acting.
我有许多爱好，比如游泳、读书和表演。
5 In fact, we get a lot more from trees.确切地说，我们从树木中得到的还有很多。
in fact (补充细节)确切地说。如：
She likes Natalie Portman. In fact, she dreams of becoming a successful woman like her.她
喜欢娜塔莉·波特曼。确切地说，她梦想成为像她一样成功的女性。
I live on Beijing Road. In fact, it’s not far from your place.
我住在北京路。确切地说，离你住的地方不远。
6 Look around this room.环顾这个房间。 look around环顾四周。如：
Now you have about half an hour to look around the tower.
现在你们有大约半小时的时间看看这座塔。
He looked around before going into the building.他进入大楼前看了看周围。
回顾：look up (在词典或参考书中)查阅、查检 look at看……
look for 寻找 have a look 看一看
7 A lot of the furniture is made of wood.许多家具是木制的。
furniture n.家具。如：
What kind of furniture do you like 你喜欢什么样的家具？
注意：furniture 是不可数名词，用a piece of furniture, two pieces of furniture 来计数。如：Two pieces of furniture in this room come from Paris.这间房里有两件家具来自巴黎。
(be) made of由……制成。如：
These flowers are made of paper.这些花是纸扎的。
That tower is made of gold.那座塔是由金子制成的。
辨析：(be) made of 和(be) made from
通常，完成品能看出所用原料时用(be) made of，无法看出所用原料时用(be) made from。如：This delicious juice is made from apples, grapes and oranges.
这款美味的果汁是由苹果、葡萄和橙子制成的。
8 But we cut down millions of trees every year.但是我们每年砍伐数以百万计的树木。
millions of大量的；数以百万计的。如：
Millions of people visit the West Lake every year.每年都有数百万人到西湖游览。
Millions of people went to the cinema today to see that film.
今天，上百万人涌到影院观看那部电影。
巩固练习
(一)单词辨音。
( ) 1 A. discuss B. usual C. computer D. uniform
( ) 2 A. gas B. tennis C. ourselves D. nervous
( ) 3 A. yourself B. yellow C. lawyer D. oxygen
( ) 4 A. example B. pattern C. gas D. camera
( ) 5 A. pine B. imagine C. fight D. guide
(二)根据音标写单词。
1 Look out! A big /brɑ nt / ________ is falling off the tree!
2 We /fait/ ________ for our country.
3 The teacher gave us another / g'zɑ mpl/ ________.
4 The Smiths bought some new /'f n t (r)/ ________ for their new house.
5 I can hardly / 'm d n/ ________ how this happened.
(三)单项选择。
( ) 1 Trees help us fight ________ pollution.
A. for B. against C. with D. again
( ) 2 My classmates want to know more ________ the life in England.
A. to B. of C. about D. over
( ) 3 Dr Jones always tells us ________ trees can help us protect the Earth.
A. how B. where C. when D. who
( ) 4 Look! The reporter ________ the famous actress Kate.
A. interviewing B. interviews C. is interviewing D. interviewed
( ) 5 Julie can find out the answer many ways.
A. of B. by C. to D. in
( ) 6 It’s bad for us to ________ harmful gases a lot.
A. take off B. take out C. take down D. take in
( ) 7 He ________ the room but found nobody there.
A. looked down B. looked around C. looked up D. looked after
( ) 8 The chairs and desks in our school are made ________ wood.
A. in B. by C. of D. from
( ) 9 ________ travellers from all over the world come to visit China every year.
A. 3 millions B. Millions of C. Million of D. 3 million of
( ) 10 All the human beings should stop ________ the world.
A. polluting B. polluted C. to pollute D. pollute
(四)单词拼写。(请把完整单词写在题后相应的横线上)
1 The doctors worked all day and all night to s________ the boy’s life.
2 I’m here because I have something important to d________ with you.
3 Oxygen is an important g________. We can’t live without it.
4 Playing computer games too much is h________ to both your eyes and your health.
5 Guangzhou is one of the m________ cities of China.
1 ________ 2 ________ 3 ________ 4 ________ 5 ________
(五)根据所给中文填空。
1 There is a tall ________ (松树)tree in front of our house.
2 Since nobody is ________ (反对)the plan, let’s do it.
3 What do they ________ (生产)in the factory
4 People need ________ (氧气)to breathe.
5 It’s ________ (方便的)to go around by underground in big cities.
(六)完成句子。
1学生们正在讨论这种能量来自何处。
The students are discussing where the energy ________ ________.
2他们不在这儿。确切地说，他们一小时以前走的。
They are not here. ________ ________, they left an hour ago.
3她环顾大厅却一个同学也没看到。
She ________ ________ the hall but could not see any classmates.
4这些碟子是银制的。
These plates ________ ________ ________ silver.
5这个工厂每年生产数百万件玩具。
The factory produces ________ ________ toys every year.
(七)语篇填词。
Rebecca did an interview with Dr Jones on trees. Dr Jones said trees can take in 1 h________ gases from the air and 2 p________ oxygen for us to breathe. Then Rebecca said trees also made our lives more convenient. Dr Jones gave some examples of things in our daily lives that come from trees, such as fruit, oil, tea and 3 f________. Rebecca was very surprised and said she couldn’t 4 i________ a world without trees. But Dr Jones told her that people cut down 5 m________ of trees every year and we should stop doing this.
1 ________ 2 ________ 3 ________ 4 ________ 5 ________
(八)读课文，完成下列思维导图。
(九)翻译句子。
1玛丽常鼓励我与疾病作斗争。(fight against)
_______________________________________________________________________________
2植物的根从土壤中吸收水分。(take in)
_______________________________________________________________________________
3那座塔不是由金子制成的。(be made)
_______________________________________________________________________________
4吃太多冷的食物对健康有害吗？(be harmful to)
_______________________________________________________________________________
5这个声音从哪儿传来的？(come from)
_______________________________________________________________________________
Grammar
(教材P49—P51)
语法讲解
现在进行时
1构成：be (am, is, are) + 动词ing形式
意义：表示说话时或现阶段正在进行的动作或发生的事情。如：
I am watching TV.我正在看电视。
My mother is cooking in the kitchen.我妈妈正在厨房做饭。
The boys are playing football.男孩们正在踢足球。
2否定形式：be (am, is, are) + not +动词ing形式。如：
I am not watching TV.我没在看电视。
My mother is not cooking in the kitchen.我妈妈不是在厨房做饭。
The boys are not playing football.男孩们不是在踢足球。
3一般疑问句形式：Be (Am, Is，Are) +主语+动词ing形式+其他成分？如：
Am I doing something you don’t like 我正在做你不喜欢的事情吗？
Is your mother cooking in the kitchen 你妈妈正在厨房里做饭吗？
Are the boys playing football 男孩们正在踢足球吗？
4特殊疑问句形式：疑问词+ be (am, is, are) +主语+动词ing形式+其他成分？如：
What am I doing 我在干什么？
Where is your mother cooking 你妈妈在哪里做饭？
Which ball are the boys playing 男孩们在玩什么球？
★动词ing形式的构成：
构成法 例词
一般动词后直接加ing work→working study→studying
以辅音字母+不发音的e结尾的动词，去e后加ing live→living write→writing
以ie结尾的重读开音节的动词，改ie为y，再加ing die →dying tie →tying
以重读闭音节结尾，末尾只有一个辅音字母的词，双写这个辅音字母，再加ing run→running sit→sitting
中考链接
1 (2020年广州中考语法选择第5小题)
He works so hard in the field, but now it ________ up.
A. dry B. is drying C. dried D. was drying
2 (2020年广州中考语法选择第8小题)
“Please let us pass，” David says. “The children ________.”
A. wait B. waited C. are waiting D. have waited
3 (2017年广州中考完成句子第6小题)
我不明白为什么他们在这个时候踢足球。
I can’t understand ________ ________ ________ ________ football at this moment.
【答案与解析】
1 B考查现在进行时。句意：他在田地里这么辛勤地劳作，可现在田地都要干涸了。
2 C 考查现在进行时。句意：“请让我们过去，”大卫说。“孩子们在等着。”
3 why they are playing 考查宾语从句及现在进行时。
语法专练
(一)单项选择。
( ) 1 The boys ________ a large board to the classroom now.
A. are carrying B. is carrying C. carries D. are carry
( ) 2 They ________ the trees.
A. are climbing not B. not climbing are
C. not are climbing D. are not climbing
( ) 3 How do you usually ________ to school
A. going B. go C. to go D. went
( ) 4 Is she ________ a new book
A. write B. wrote C. writes D. writing
( ) 5 Look! Jim ________ his birthday cake into four pieces.
A. cut B. cutting C. is cutting D. are cutting
(二)选用am，is，are 填空。
1 Mary ________ reading a picture book.
2 John and his brother fighting outside.
3 ________ they dancing and singing now
4 I ________ doing my homework.
5 What ________ Xiao Ling doing now
6 ________ you cleaning your room
7 Tom’s parents ________ watching TV in the living room.
8 I ________ writing an article for the newspaper.
9 ________ your father playing chess with his friend
10 He and his classmates ________ listening to the teacher carefully.
(三)用所给动词的适当形式填空。
1 I ________ (play) the piano every day.
2 What you ________ (do) at home now
3 Mary ________ (write) to her pen friend once a week.
4 We ________ (plant) trees tomorrow.
5 My sister ________ (wash) her clothes at the moment.
6 — Where are your grandparents，Jack
—They ________ (water) the flowers in the garden.
7 Listen! Someone ________ (sing) a beautiful song in the next room.
8 Mr Wang ________ (read) the newspaper now.
9 I ________ (cook) a big meal for my family last weekend.
10 Look! Tom and Jerry ________ (run) in the park.
(四)句型转换。
1 I am singing a song.
→改为否定句：__________________________________________________________________
→改为一般疑问句：______________________________________________________________
→肯定回答：____________________________________________________________________
→否定回答：____________________________________________________________________
→就画线部分提问：______________________________________________________________
2 She is reading a book.
→改为否定句：__________________________________________________________________
→改为一般疑问句：______________________________________________________________
→肯定回答：____________________________________________________________________
→否定回答：____________________________________________________________________
→就画线部分提问：______________________________________________________________
3 They are talking to the English teacher.
→改为否定句：__________________________________________________________________
→改为一般疑问句：______________________________________________________________
→肯定回答：____________________________________________________________________
→否定回答：____________________________________________________________________
→就画线部分提问：______________________________________________________________
Listening & Speaking
(教材P48&P52)
课文讲解
Trees are good for ...树木对……有好处
(be) good for对……有用，有好处。如：
Do you know why eating some chocolate is good for our health
你知道为什么吃一些巧克力对健康有好处吗？
Sometimes, difficulty is good for us.有时候，困难对我们有好处。
巩固练习
(一)语音。
第一节 从各项中，选出选项中画线部分的发音与所给音标相同的单词。
( ) 1 /sp/ A. ski B. skirt C. sky D. space
( ) 2 /sn/ A. snow B. smile C. smoke D. small
( ) 3 /pi/ A. problem B. pretty C. prefer D. please
( ) 4 /kw/ A. twelve B. question C. twenty D. between
第二节 从各项中，选出选项中画线部分的发音与所给单词画线部分发音相同的单词。
( ) 5 discuss A. pine B. wine C. dig D. climb
( ) 6 stairs A. disease B. discuss C. person D. coast
( ) 7 pine A. carry B. finally C. fly D. library
( ) 8 bottom A. hole B. oxygen C. radio D joke
第三节 从各句中，选出画线单词重音位置与其他不同的选项。
( ) 9 Trees take in harmful gases and produce oxygen for us to breathe.
A. B. C. D.
( ) 10 We can’t imagine who can fight against air pollution and save the Earth.
A. B. C. D.
(二)听课本录音，完成练习。
第一节 回答问题
1 What’s the name of the radio programme
_______________________________________________________________________________
2 Are pine trees strong plants
_______________________________________________________________________________
3 How can people use pine trees in Chinese medicine
_______________________________________________________________________________
4 How many ways does the host mention to make use of pine trees
_______________________________________________________________________________
第二节 询问信息
5你会参加这个关于松树的讲座吗？
_______________________________________________________________________________
6为什么松树能在不同的环境中生长？
_______________________________________________________________________________
(三)单词拼写。(请把完整单词写在题后相应的横线上)
1 The p________ trees are green all year round. They are famous for their tough characters.
2 Close your eyes and i________ that you are in a beautiful forest.
3 We must f________ against pollution to protect the environment.
4 O________ is a gas that is necessary for people, animals and plants to live.
5 A bicycle is often more c________ than a car in towns.
1 ________ 2 ________ 3 ________ 4 ________ 5 ________
(四)完成句子。
1植物可以使我们的家园更加美丽。
Plants can ________ our home ________ ________.
2我用她的铅笔画了一幅画。
I ________ her pencil ________ ________ a picture.
3科学家利用一种新方法与空气污染作斗争。
Scientists use a new way to ________ ________ air pollution.
Writing
(教材P53)
写作专练
请看下面的图片，同学们都在做什么呢？请你用一篇70词左右的英语短文描述出来。
写作指导
一、审题
1写什么？ ________ 2用第几人称？ ________ 3用什么时态？ ________
二、要点
1 图片概述：教室里有6个学生。It is a photo of ________. There are ________________.
2 David 在看英文报；David is reading ________________.
3 Tom在做作业；Tom is ________________.
4 Jack 在写信；________ doing his homework too No, ________________.
5 Linda 和 Alice 在交谈；Can you see the girls sitting behind Tom They are ________________.
They ________________________.
6 Sally 在擦教室后面的黑板。Where is Sally She ________________ at the back of the classroom.
三、成文
In the Classroom
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
More practice
(教材P54)
课文讲解
1 Many living things lose their homes because of deforestation.许多生物因为森林采伐而失去了它们的家园。
because of因为；由于。如：
They were here because of me.他们来这里是因为我。
He didn’t go to school because of his illness.他没有去上学，因为他病了。
2 As a result, the number of kinds of animals, birds，insects and trees in the world is decreasing. 结果，世界上的动物、鸟类、昆虫和树木的种类数量正日益下降。
as a result结果；因此。如：
As a result, he apologized to the old lady.结果，他向那位老大太道了歉。
We will have a strong body as a result.我们因此会身强体壮。
3 We must do our best to protect the Amazon rainforest.我们必须竭尽所能保护亚马逊雨林。
do one’s best竭尽所能；尽力。后接动词不定式to do。同义短语：try one’s best。如：
Do your best to finish the work.尽你们最大努力完成此项工作。
I’ll try my best to help you.我会竭尽全力帮助你。
4 The rainforest is in danger because of (5) ________ (the cutting down of trees).雨林因为(5) ________ (树木被砍伐)而处于危险中。
(be) in danger处在危险中。如：
What will you do if you see someone in danger 如果你看见别人遇到危险，你会怎么做？
Our Earth is in danger because people keep polluting the environment.
地球正处于危险中，因为人们一直在污染环境。
巩固练习
(一)单项选择。
( ) 1 — Who is ________ in your class
—Mike.
A. tallest B. the tallest C. most tallest D. the most tallest
( ) 2 I would like to play basketball with you; ________, my homework is not finished yet.
A. so B. if C. however D. or
( ) 3 They ________ all the trees and used them to make furniture.
A. cut off B. cut up C. cut down D. cut into
( ) 4 —________ is the result of deforestation
—Many living things lose their homes.
A. What B. Why C. How D. When
( ) 5 You ________ not play football in the classroom. It’s a rule!
A. may B. need C. should D. must
( ) 6 Look! Your dog and my cat ________.
A. fight B. fought C. fighting D. are fighting
( ) 7 Keep quiet, please. The baby ________.
A. sleeping B. is sleeping C. sleeps D. slept
( ) 8 Miss Wang ________ a lot of books. Let’s go and help her.
A. is carrying B. carried C. carry D. is carried
( ) 9 I ________ the room, but I found nothing.
A. came from B. preferred to C. looked around D. gave up
( ) 10 You must stop ________ that heavy schoolbag. It’s bad for your back.
A. carry B. carrying C. to carry D. to carrying
( ) 11 Trees produce oxygen for people ________.
A. to breathe B. breathe C. to breathing D. breathing
( ) 12 ________ people watched the football match on TV.
A. Two millions B. Million of C. Two million of D. Millions of
( ) 13 ________, she thought you were right.
A. In fact B. In the fact C. On fact D. On the fact
( ) 14 Trees are helpful. They help us ________ many ways.
A. by B. on C. in D. with
( ) 15 —________ they ________ the problem tomorrow
—No. They ________ it now.
A. Do; discuss; discuss B. Do; discuss; are discussing
C. Will; discuss; discuss D. Will; discuss; are discussing
(二)单词拼写。(请把完整单词写在题后相应的横线上)
1 He had a d________ and died a few months ago.
2 Sleeping late is h________ to your health.
3 There’s a h________ in your bag. Buy a new one.
4 Close your eyes and i________ that you are in a forest.
5 The box was heavy, but he tried hard to c________ it.
1 ________ 2 ________ 3 ________ 4 ________ 5 ________
(三)完成句子。
1他的腿不好，因此走得很慢。
He walked slowly ________ ________ his bad leg.
2今早我起床晚了，因此没赶上校车。
I got up late this morning. ________ ________ ________, I missed the school bus.
3你应该尽力实现你的梦想。
You should ________ ________ ________ to make your dream come true.
4多阅读对你有好处。
Reading more books ________ ________ ________ you.
5医生说他已经脱离危险。
The doctors said that he was no longer ________ ________.
(四)语篇填词。
The Amazon rainforest in South America covers five and a half million square kilometres of the Amazon Basin and spreads across nine countries. It is the 1 l________ rainforest in the world. The Amazon rainforest is very important 2 b________ it is home to thousands of animals, birds and insects. However, people are destroying the area by 3 c________ down many of the trees. This is called “deforestation，，. Many living things 4 1________ their homes because of deforestation. As a result, the number of kinds of animals, birds, insects and trees in the world is decreasing. We 5 m________ do our best to protect the Amazon rainforest.
1 ________ 2 ________ 3 ________ 4 ________5 ________