(共27张PPT)
Unit 4 Save the trees
Period 1 Reading I
牛津深圳版 七年级下册
Look at the picture and talk about it.
Lead in
What is it in the picture?
It is a tree.
在中文中，我们都知道树有四大部分，即根、干、枝、叶。那么在英文中，树的构造分别对应哪些表达呢？
Do you know the structure of trees?
Look at the picture and talk about it.
Lead in
树根 root
根是植物的营养器官 (the vegetative organs of plants)，通常位于地表下面，负责吸收 (absorb) 土壤里面的水分及溶解 (dissolve) 其中的离子，并且具有支持，贮存 合成(support and store) 有机物质的作用。位于地表外的气生根（榕树）也属于根的一种。
Look at the picture and talk about it.
Lead in
树干 trunk
树干不是树木的身体骨架部分，多数为木材的来源 (the source of wood)，树木外包树皮 (covered with bark)。树干有年轮 (rings) 记录年龄。树干负责承拓整株植物，树干里的木质部负责运输 (transportation) 供水及营养以助光合作用 (photosynthesis) 和新陈代谢 (metabolism)。
Look at the picture and talk about it.
Lead in
树枝 branch
树木主干上分出的茎条，通常是细长的从树主干或大枝上长出的细茎或者由植物芽苞长出的嫩茎或部分 (a bud or a part)。
树叶 leaf
叶内含有叶绿体 (chloroplast)，是植物进行光合作用的主要场所 (the main place)。同时，植物的蒸腾作用 (transpiration )是通过叶的气孔 (stomata )进行的。
Lead in
Listen to the recording and answer the question.
What can we know from the recording?
What kind of seed you plant will grow into what kind of tree.
branch fruit leaf root
____________
_______________
_________
_________
Write down the names of the parts of a tree.
Pre-reading
What do you know about…?
fruit
branch
leaf
root
What do trees do for us?
a They help fight against pollution.
b They provide us with wood, fruit, etc.
c They are home to birds and animals.
d All of the above.
Pre-reading
What do you know about…?
d All of the above.
与……作斗争（争吵）；反对……；后面接的词为反对（或者作斗争）的对象。
提供某人某物，先人后物，with可省略。与provide sth. for sb. (提供某物给某人，先物后人) 区分开来。
……的故乡/所在地/发源地
Answer the question.
Look at the pictures and the title of the interview on page 45. Then answer the questions below.
Pre-reading
Trees in our daily lives
Answer the question.
Pre-reading
1 What do you think the interview is about?
a The lives of trees.
b Why trees are important in our daily lives.
2 What can we make from trees? Write down three examples.
_____________________
_____________________
_____________________
b Why trees are important in our daily lives.
Paper
Pencils
fruit
n. something such as an object, a fact
While-reading
Trees in our daily lives
Rebecca wants to know more about trees and how they help us. She is interviewing Dr Jones about trees.
Rebecca: How do trees help us, Dr Jones?
Dr Jones: They help us in many ways. They keep the air cool and clean. They take in harmful gases from the air and produce oxygen for us to breathe. They’re major fighters against air pollution.
Listen, read and understand.
Rebecca: I know trees also make our lives more convenient. Many of the things in our daily lives come from trees. For example, paper and pencils.
Dr Jones: You’re right, Rebecca. In fact, we get a lot more from trees. We get fruit and oil from them. Tea also comes from the leaves of trees. Look around this room. A lot of the furniture is made of wood. Trees are really important in our daily lives.
While-reading
Listen, read and understand.
Rebecca: I can’t imagine a world without trees.
Dr Jones: But we cut down millions of trees every year. We should stop doing this if we don’t want a world without trees.
While-reading
Listen, read and understand.
1 They take in harmful gases from the air and produce oxygen for us to breathe. They’re major fighters against air pollution.
Presentation
Language points.
any substance like air
very large or important
A gas that all plants and animals need
?(人、动物或植物)摄入，吸收
If people, animals, or plants?take in?air, drink, or food, they allow it to enter their body, usually by breathing or swallowing.
They will certainly need to take in plenty of liquid.
它们当然需要吸收大量液体。
causing damage or injury
2 A lot of the furniture is made of wood.
Presentation
Language points.
furnishings that make a room
a lot of 后接不可数名词，furniture 为不可数名词。不能说 a furniture或 furnitures。将桌、椅、床等泛称为家具时，可以说 a piece of furniture或 an item of furniture。
be made of，由……制成，能看出原材料，而be made from，由……制造，看不出原材料。如桌子由木头制成，可以看出原材料，用be made of。而纸是由树木做成的，看不出来原材料，用be made from。
3 But we cut down millions of trees every year. We should stop doing this if we don’t want a world without trees.
Presentation
Language points.
大量的；数以百万计的
stop doing … “停下正在做的事”，动作结果是停止了。
stop to do … “停下正在做的去做另一件事”，开始了新的动作。
It's probably time to stop doing that.
也许是时候该停止这样做了。
Hearings the doorbells, she stopped to open the door.
听到门铃，她停下手中的活去开门。
Other important expressions:
make … convenient
come from
for example
in fact
look around
imagine sth.
Presentation
Language points.
使…方便的
来自
例如
确切地说
环顾四周
想象某事
1 Both rooms have antiqued pine ________.
2 Fruit juices can be _______to children's teeth.
3 No living things can live without ______.
4 This suit _________very good material.
5 The machine _______________(停止运转).
6 He‘s just _________(来自) the countryside.
furniture
harmful
oxygen
is made of
stopped working
come from
Activity
根据提示或句意补全句子。
Post-reading
1 Harmful gases are ____ people’s health.
a good for b bad for
2 Trees produce oxygen. They ____ oxygen.
a take b make
3 Air pollution is a major problem in the city. This problem is ___.
a big and important b not very important
Vocabulary.
The words in italics are from the story on page 45. Circle the correct answers.
4 Washing machines make our lives more convenient. With the help of them, our lives become ____.
a easier b richer
5 When you imagine a picture, you have it ____.
a on paper b in your mind
The words in italics are from the story on page 45. Circle the correct answers.
Post-reading
Vocabulary.
Did you know trees __________ oxygen?
Did you know trees help us fight _______ pollution?
Did you know the __________ in our classroom is made of wood?
Did you know trees make our lives very __________?
If you want to know more about trees, join our “All about trees” talk at 4 p.m. on 26 October (Tuesday). We will interview Dr Jones about the lives of trees and their _____ trees.
produce
against
furniture
convenient
major
against convenient furniture major produce
Completer the passage with the words in box.
Post-reading
Activity
思考：树在我们生活中还有哪些好处？
Think and say:
The students are going to work in group and each group will send a representative to give a sentence to express the role of trees in our daily life.
Practice
Choose the correct answers.
( ) 1 Look! Jack and his monkey ___ flying disk in the garden.
A. is playing B. was playing C. are playing
( ) 2 My?mother?is ___ cakes.?She?often ___ cakes?for?us.
A. makes; making B. making; makes C. does; doing
( ) 3 – ___ she ___ her?homework?
– No, she isn't. She is writing something.??
A. Does; do B. Is; doing C. Do; do
C
B
B
Practice
Choose the correct answers.
( ) 4 – Listen! Who ___ in the music room?
– It must be Jane. She usually ___ at this time every day.??
A. sings; sings B. is singing; is singing C. is singing; sings?
( ) 5 – Noise is ___ to human's health.
– Yes, we shouldn't talk loudly in public.??
A. harmful B. harm C. harmless
C
A
Summary
Key words:
branch, convenient, example, furniture, gas, harmful, imagine, produce, major, oxygen, root
Key phrases:
fight against, for example, million of, take in
Homework
模仿录音的语音、语调，朗读课文。
抄写单词和短语：fight against, branch, convenient, example, furniture, gas, harmful, imagine, produce, major, oxygen, root, for example, million of, take in
思考问题“Why are trees so important to human?”
谢谢
中小学教育资源及组卷应用平台
牛津深圳版英语七年级下册
Unit 4 Save the trees
Period 1 Reading I教学设计
课题 Unit 4 Period 1 单元 Unit 4 学科 English 年级 7
学习 目标 Language knowledgebranch, convenient, example, furniture, gas, harmful, imagine, produce, major, oxygen, rootunderstand new phrases：fight against, for example, million of, take in2. Language skills 1) be able to guess the meaning of words according to pictures or context, and exercise specific image thinking. 3) usage of key words. 4) analysis of simple sentence structure. 3.Learning strategies Training method. 4 . Emotional attitudeUnderstand the role of trees in our daily lives.
重点 usage of key words.
难点 usage of key words; analysis of simple sentence structure.
教学过程
教学环节 教师活动 学生活动 设计意图
导入新课 Step 1. Lead-inLook at the picture and talk about it.Listen to the recording and answer the question. 了解树木的基本构造，掌握树木的基本知识。 用图文的方式吸引学生的注意，激发学生思考。并过渡到新课。
讲授新课 Step 1. Pre-readingWrite down the names of the parts of a tree. Look at the pictures and the title of the interview on page 45. Then answer the questions below. Step 2. While-readingListen, read and understand.Trees in our daily livesLanguage points.1 ?(人、动物或植物)摄入，吸收If people, animals, or plants?take in?air, drink, or food, they allow it to enter their body, usually by breathing or swallowing. They will certainly need to take in plenty of liquid. 它们当然需要吸收大量液体。 2 a lot of 后接不可数名词，furniture 为不可数名词。不能说 a furniture或 furnitures。将桌、椅、床等泛称为家具时，可以说 a piece of furniture或 an item of furniture。 be made of，由……制成，能看出原材料，而be made from，由……制造，看不出原材料。如桌子由木头制成，可以看出原材料，用be made of。而纸是由树木做成的，看不出来原材料，用be made from。 3 stop doing … “停下正在做的事”，动作结果是停止了。 stop to do … “停下正在做的去做另一件事”，开始了新的动作。It's probably time to stop doing that. 也许是时候该停止这样做了。Hearings the doorbells, she stopped to open the door. 听到门铃，她停下手中的活去开门。Other important expressions.Step 3. Acitivity根据提示或句意补全句子。Step 4. Vocabulary.The words in italics are from the story on page 45. 1. Circle the correct answers.Completer the passage with the words in box.Step 5. Activity思考：树在我们生活中还有哪些好处？ 完成阅读课文前的相关练习。 阅读文章，完成简单练习。学习对话重点语法 随堂练习。 头脑风暴，小组讨论。 通过练习让学生初步了解课文相关内容，做好阅读准备。有任务的阅读练习，提高阅读水平。对文章中出现的知识点，及时指出并讲解，为以后做题奠定基础。 巩固新学的单词和语法，熟悉课文。、 激发思考，提高合作能力。
练习巩固 Step1. PracticeChoose the correct answers. 1 Look! Jack and his monkey ___ flying disk in the garden. A. is playing B. was playing C. are playing 2 My?mother?is ___ cakes.?She?often ___ cakes?for?us. A. makes; making B. making; makes C. does; doing 3 – ___ she ___ her?homework? – No, she isn't. She is writing something.?? A. Does; do B. Is; doing C. Do; do4 – Listen! Who ___ in the music room? – It must be Jane. She usually ___ at this time every day.?? A. sings; sings B. is singing; is singing C. is singing; sings? 5 – Noise is ___ to human's health. – Yes, we shouldn't talk loudly in public.?? A. harmful B. harm C. harmlessStep2. Homework模仿录音的语音、语调，朗读课文。 抄写单词和短语：fight against, branch, convenient, example, furniture, gas, harmful, imagine, produce, major, oxygen, root, for example, million of, take in 思考问题“Why are trees so important to human?” 完成习题。 完成作业。 日积月累掌握做题技巧。 课后巩固。
课堂小结 Key words: branch, convenient, example, furniture, gas, harmful, imagine, produce, major, oxygen, root Key phrases: fight against, for example, million of, take in 总结本课重点。 通过对重点的小结，让学生更系统地掌握本课内容
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中小学教育资源及组卷应用平台
牛津深圳版英语七年级下册
Unit 4 Save the trees
Period 1 Reading I教学设计
课题 Unit 4 Period 1 单元 Unit 4 学科 English 年级 7
学习 目标 Language knowledgebranch, convenient, example, furniture, gas, harmful, imagine, produce, major, oxygen, rootunderstand new phrases：fight against, for example, million of, take in2. Language skills 1) be able to guess the meaning of words according to pictures or context, and exercise specific image thinking. 3) usage of key words. 4) analysis of simple sentence structure. 3.Learning strategies Training method. 4 . Emotional attitudeUnderstand the role of trees in our daily lives.
重点 usage of key words.
难点 usage of key words; analysis of simple sentence structure.
教学过程
教学环节 教师活动 学生活动 设计意图
导入新课 Step 1. Lead-inLook at the picture and talk about it.Listen to the recording and answer the question. 了解树木的基本构造，掌握树木的基本知识。 用图文的方式吸引学生的注意，激发学生思考。并过渡到新课。
讲授新课 Step 1. Pre-readingWrite down the names of the parts of a tree. Look at the pictures and the title of the interview on page 45. Then answer the questions below. Step 2. While-readingListen, read and understand.Trees in our daily livesLanguage points.1 ?(人、动物或植物)摄入，吸收If people, animals, or plants?take in?air, drink, or food, they allow it to enter their body, usually by breathing or swallowing. They will certainly need to take in plenty of liquid. 它们当然需要吸收大量液体。 2 a lot of 后接不可数名词，furniture 为不可数名词。不能说 a furniture或 furnitures。将桌、椅、床等泛称为家具时，可以说 a piece of furniture或 an item of furniture。 be made of，由……制成，能看出原材料，而be made from，由……制造，看不出原材料。如桌子由木头制成，可以看出原材料，用be made of。而纸是由树木做成的，看不出来原材料，用be made from。 3 stop doing … “停下正在做的事”，动作结果是停止了。 stop to do … “停下正在做的去做另一件事”，开始了新的动作。It's probably time to stop doing that. 也许是时候该停止这样做了。Hearings the doorbells, she stopped to open the door. 听到门铃，她停下手中的活去开门。Other important expressions.Step 3. Acitivity根据提示或句意补全句子。Step 4. Vocabulary.The words in italics are from the story on page 45. 1. Circle the correct answers.Completer the passage with the words in box.Step 5. Activity思考：树在我们生活中还有哪些好处？ 完成阅读课文前的相关练习。 阅读文章，完成简单练习。学习对话重点语法 随堂练习。 头脑风暴，小组讨论。 通过练习让学生初步了解课文相关内容，做好阅读准备。有任务的阅读练习，提高阅读水平。对文章中出现的知识点，及时指出并讲解，为以后做题奠定基础。 巩固新学的单词和语法，熟悉课文。、 激发思考，提高合作能力。
练习巩固 Step1. PracticeChoose the correct answers. 1 Look! Jack and his monkey ___ flying disk in the garden. A. is playing B. was playing C. are playing 2 My?mother?is ___ cakes.?She?often ___ cakes?for?us. A. makes; making B. making; makes C. does; doing 3 – ___ she ___ her?homework? – No, she isn't. She is writing something.?? A. Does; do B. Is; doing C. Do; do4 – Listen! Who ___ in the music room? – It must be Jane. She usually ___ at this time every day.?? A. sings; sings B. is singing; is singing C. is singing; sings? 5 – Noise is ___ to human's health. – Yes, we shouldn't talk loudly in public.?? A. harmful B. harm C. harmlessStep2. Homework模仿录音的语音、语调，朗读课文。 抄写单词和短语：fight against, branch, convenient, example, furniture, gas, harmful, imagine, produce, major, oxygen, root, for example, million of, take in 思考问题“Why are trees so important to human?” 完成习题。 完成作业。 日积月累掌握做题技巧。 课后巩固。
课堂小结 Key words: branch, convenient, example, furniture, gas, harmful, imagine, produce, major, oxygen, root Key phrases: fight against, for example, million of, take in 总结本课重点。 通过对重点的小结，让学生更系统地掌握本课内容
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