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Lesson 1 Planting trees!
Unit 1
Spring is coming!
01
02
学习目标
能够掌握本课时单词、短语和句型。
能够听懂关于春天植树的对话，捕捉春天的天气描述、植树的步骤及原因等信息 。
03
能够运用所学词汇、句型，围绕“植树”进行对话交流，分享植树的益处。
Think and answer:
1. What come to your mind when speaking of March 12
2. Have you even planted trees Do you know how to plant trees
Spring.
Tree planting. In China, Tree Planting Day is a national holiday on March 12th, established in 1979 .
Lead in
1 Watch the video. Put the pictures in the correct order.
新课讲授
Watch and number
steps to plant trees.
□
a way to learn about nature
□
different kinds of trees
□
□
□
□
weather
school project
reasons for planting trees
2 Listen to the conversation and tick the items mentioned.
Listening
A What’s the weather like today
B Why does Li Ming think the project is about planting trees
C How many steps do we need to plant trees
D Why do people plant trees
3 Listen to the conversation again and answer the questions.
It’s a warm, cloudy day.
Because the school project is on March 12 and March 12th is Arbor Day.
Because trees help protect the soil from rainfall and prevent dust from spreading. And Planting trees is also a wonderful way to learn more about nature.
Five steps.
How to plant trees
Listen to the conversation again and fill in the blanks.
_______ a large hole.
_______ the seeding inside the hole.
_______ its roots with soil.
_______ down the soil .
Don’t forget
to _______ the tree.
Dig
Place
Cover
Press
water
Ms Liu: Good morning, everyone! Who is on weather duty today
Wang Mei: It's me! Today is Monday, March 1. The temperature will reach 15°C by noon and drop to 2°C at night. Overall, it will be a warm, cloudy day.
Ms Liu: Well done, Wang Mei. The days are getting longer, and spring is coming. We have a school project on March 12. Can you guess what it is
Li Ming: Is it tree planting
Ms Liu: Good guess. Do you know how to plant trees
Li Ming: Yes. I learned to plant trees when I visited my uncle last spring. It was so much fun.
Reading
Ms Liu: Could you tell us the steps for planting trees
Li Ming: Sure. First, dig a large hole. Then, place the seedling inside the hole, and cover its roots with soil. Finally, press down the soil. Oh, don't forget to water the tree.
Ms Liu: Excellent, Li Ming. Why do people plant trees Do you have any ideas
Song Hua: Trees help protect the soil from rainfall.
Li Lin: Trees prevent dust from spreading.
Ms Liu: Good points. Planting trees is also a wonderful way to learn more about nature. I believe you will have a great time with this project.
Listen to the introduction to the Great Green Wall and fill in the blanks.
The Great Green Wall was built across the northern part of China. What is the Great Green Wall It is made up of strips of _______ planted by humans. Each year, dust storms blow a large amount of soil off the land. The situation is becoming increasingly serious. About _______ square kilometres of grassland are being covered by the Gobi Desert every year. The Great Green Wall project started in _______. By planting more trees, people are preventing the _______ from expanding and the forest coverage is increasing in northern China. By the year _______, the Great Green Wall will be about 2,800 miles long.
Listening
Work in pairs. What are the basic steps for planting a tree What are the benefits of planting trees Talk about all these with your partner.
Pair work
Language points
1. Who is on weather duty today
duty n.责任；义务；职责。常见用法：
(1) It’s one’s duty to do sth. 做某事是某人的责任。
(2) on duty 值班；当班；执勤
(3) do one’s duty 履行某人的职责
e.g. It’s our duty to pay attention in class and ask questions.
在课堂上集中注意力并提出问题是我们的责任。
There are more than two doctors on duty in the hospital.
医院里值班的医生不止两个。
When you see someone in trouble, you should do your duty and offer a helping hand. 当你看到有人遇到困难时，你应该履行你的责任，伸出援手。
2. The temperature will reach 15°C by noon and drop to 2°C at night.
reach 作动词时的一词多义：
(1) 达到(某阶段、数量或速度等) (2) 到达
(3) 实现；达成 (4) (伸手/ 脚等) 够到；伸出(手、脚等)
常见用法：
(1) reach an agreement 达成协议
(2) reach one’s goal 实现某人的目标
(3) reach for 伸手去拿 (4) reach out 伸手
reach 还可作名词，意为“影响范围”。
beyond one’s reach 超出某人的能力范围
e.g. The temperature is expected to reach 25 degrees tomorrow.
明天温度预计会达到25 度。
They reached the village last night. = They arrived at the village last night. = They got to the village last night. 他们昨晚到达了村庄。
One has to work hard to reach his goal.
一个人必须努力去实现自己的目标。
The girl reached for a piece of cake on the table.
女孩伸手去够桌子上的一块蛋糕。
This math problem is beyond my reach.
这道数学题超出了我的能力范围。
辨析：reach, arrive 与get to
相同点 不同点
reach 均可表示“到达” 及物动词，直接接宾语(地点) ，不接介词。
arrive 不及物动词，接宾语时必须加介词：接大地点(国家、城市等) 用arrive in；接小地点(车站、学校等) 用arrive at。
get to 及物动词短语，若后面的地点是副词(如here/there/home) ，则不加to。
by noon 意为“到中午之前”。“by + 时间”是一个常用的英语短语，表示“在……之前”或“到……为止”，强调某个动作或事件在某个时间点之前完成。这个短语通常用于表示截止时间或最后期限。
相关短语：by the end of 到……末为止 at noon 在中午
e.g. I will finish my report by noon. 我将在中午之前完成我的报告。
By the end of this month, I will finish reading five books.
到这个月底，我将读完五本书。
I like to take a short break at noon to relax.
我喜欢在中午休息一会儿来放松。
drop to +具体数值，表示“下降到……；降至……”
e.g. Prices drop to 315 in the low season.
到旅游淡季，价格会降到315英镑。
3. I learned to plant trees when I visited my uncle last spring.
分析结构：这是一个主从复合句。主句是I learned to plant trees，后面是when 引导的时间状语从句；主句中主语是I，谓语是learned，to plant trees 是动词不定式短语作宾语。
e.g. When I am tired, I like to listen to music.
当我觉得累的时候，我喜欢听音乐。
when 和while 都引导时间状语从句。
(1) when 后接“时间点”或“时间段”，用于表示某个动作或事件发生的时间。从句的动作可以和主句的动作同时发生，也可以在主句的动作之前或之后发生。
(2) while 后接“时间段”，主句的动作与从句的动作同时发生，但持续时间一般较长或主句的动作发生在从句的动作进行的过程中。
e.g. Call me when you’re finished.
你完成后就打电话给我。
Now I am learning English while my mum is reading newspapers.
现在我在学英语，我的妈妈在读报纸。
4. Finally, press down the soil.
press 作及物动词，意为“压，按；催促”。
常见用法：
(1) press down 按压
(2) press sb. to do sth. 催促某人做某事
(3) press for sth. 不断要求某事
(4) press sb. for sth. 向某人迫切索要某物
press 还可作名词，意为“报刊；出版社；印刷”。
the freedom of the press 新闻自由
e.g. Press the button to open the door. 按一下按钮就可以开门。
Press down on the lid to make sure it’s tightly closed.
用力按住盖子，确保它盖紧了。
My parents press me to practice the piano every day.
父母督促我每天练习钢琴。
The new school building was reported in the press.
新的学校建筑在报刊上被报道了。
The new press can print more pages in a shorter time.
这台新的印刷机可以在更短的时间内印更多的页。
5. Trees help protect the soil from rainfall.
protect... from 保护……以免(受……的伤害/影响) ，强调通过某种方式使对象避免遭受不利因素(如危险、伤害、损害等) 。
近义表达：(1) protect...against... 保护……免受……，强调“对抗、抵御”有攻击性的对象(如敌人、疾病、自然灾害等) 。
(2) save... from... 拯救……免于……；使……避免……
e.g. We wear sunglasses to protect our eyes from the strong sunlight.
我们戴太阳镜是为了保护眼睛免受强烈阳光的伤害。
Vaccines can protect us against serious diseases.
疫苗能保护我们抵御严重的疾病。
The doctor saved him from death. 医生把他从死亡边缘救了回来。
6. Trees prevent dust from spreading.
prevent...from doing (sth.) 意为“阻止……做某事”。同义短语为stop/keep... from doing sth.。
e.g. We should prevent children from playing near the river.
我们应该阻止孩子们在河边玩耍。
The teacher stopped the students from talking in class.
老师制止了学生们在课堂上讲话。
The fence keeps the cows from getting into the garden.
围栏阻止牛进入花园。
spread 作动词，意为“扩散；传播；展开；散布(信息、疾病等) ；使分散”。spread out 伸展身体；散开
spread 作名词，表示“传播；蔓延；散步”。
e.g. The fire spread quickly through the building.
火势迅速蔓延到整座大楼。
Social media can spread information to us quickly.
社交媒体可以给我们快速传播信息。
She lay on the bed, spreading her arms. 她展开双臂，躺在床上。
The spread of education has changed many people’s lives.
教育的普及改变了很多人的生活。
7. Planting trees is also a wonderful way to learn more about nature.
分析结构：这是一个简单句，为主系表结构。动名词短语Planting trees 作主语；动词不定式短语to learn more about nature 作后置定语，修饰名词way。
动名词(短语) 作主语时：一个动名词(短语) 作主语，谓语动词用单三形式；多个动名词(短语) 作主语，谓语动词通常用复数形式。动词不定式(短语) 作定语时，通常放在被修饰的名词或代词后面，用来说明被修饰词的性质、用途或动作。
e.g. Playing soccer is good for your health. 踢足球对你的健康有好处。
Getting enough sleep and relaxing are important for my well-being.
获得足够的睡眠和放松对我的健康很重要。
nature 作名词，意为“自然；本性；性质”。
in nature 在自然中；本质上 by nature天生地
return to nature回归自然
nature 的形容词形式是natural，意为“自然的；天生的”。natural talent 指天生的才能，是与生俱来的，没有经过后天刻意培养而具有的才能。
e.g. I love spending time in nature. 我喜欢在大自然中度过时光。
The kind nature of the teacher made everyone feel welcome in class.
老师善良的本性让每个人在课堂上都感到受欢迎。
The nature of this game is to have fun while learning.
这个游戏的性质是在玩乐中学习。
It’s natural for the leaves to fall in autumn. 树叶在秋天落下是自然的。
She has a natural talent for music. 她有音乐天赋。
熟读课文，并背诵植树的步骤及原因。
预习下一课时。
Homework

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