(共33张PPT)
Unit 1 Spring is coming!
Lesson 1 Planting trees!
冀教版八年级下册
课型：听说课
Leading in
What season is it
It is spring.
rainy
windy sunny freshcoldhotsnowyfogg
Leading in
Discuss and answer.
What’s the weather like in spring
How is the weather
天气怎么样？
warm
windy
fresh
rainy
pleasant
宜人的
rainy
windy sunny freshcoldhotsnowyfogg
Leading in
Discuss and show.
What will you do in spring
fly a kite
climb mountains
plant trees
have a picnic
have a spring outing
踏青
What’s the school project
on March 12
Can you guess
It is tree planting.
Pre-listening
In China, Tree Planting Day is a national holiday on March 12th, established in 1979 .
Who is on weather duty today
duty / dju ti/
n. 责任；职务，职责；上班；税
复数 duty ---------duties
on duty 在值班，在值日
It’s one’s duty to do sth. 做某事是某人的职责
off duty 下班
谁今天负责天气预报？
custom duty 关税
The temperature will reach 15°C by noon.
reach /ri t / v. 到达；抵达,伸手去够 / 拿
用法：reach Shijiazhuang 到达石家庄
reach 直接接地点名词 ，reach the school 到达学校
arrive 接大地方国家、城市用 in，接小地方车站、学校等用 at
arrive in China到达中国 arrive at the station到达车站
get to 后接地点名词 ，但接 home、here、there 等副词时，to 要省略 ，get home到家
温度在中午前将会达到15摄氏度。
noon /nu n/ n.中午，正午
at noon 在中午
We should be there by noon.
我们应该中午前到达。
hole /h l/ n.洞，孔，漏洞
black hole
in the hole
He dug a deep hole in the garden.
黑洞，无底洞
负债，亏空；
他在花园里挖了个深坑。
seedling / si dl /
n.秧苗，幼苗，树苗
She cut down the seedling with one chop.
她砍一刀就把树苗砍倒了。
root /ru t/ n.根，根源
We got to the root of the problem.
我们触及了这个问题的根源。
root cause
根本原因
Finally, press down the soil.
press /pres/
v.压；按，催促n.报刊，出版社，压力
用法：
press down 向下压；按压
press sb. to do sth. 催促某人做某事
press sb. for sth. 向某人迫切索要某物
the freedom of the press新闻自由
Press down the button to start the machine.
按下按钮启动机器。
最后，压实土壤
excellent / eks l nt/
adj.优秀的，杰出的
excellent quality
excellent student
excellent leader
优良品质
优等生
优秀干部
prevent /pr vent/ v.防止，阻止
We are taking steps to prevent pollution.
我们正在采取措施防止污染。
prevent...from doing 阻止...做某事
We should prevent children from playing near the river.
我们应该阻止孩子们在河边玩耍。
dust /d st/ n.沙土，尘土
dust storm
dust collector
in the dust
沙尘暴
吸尘器
死了；入土
She blew the dust off the book.
她吹掉了书上的灰尘。
Trees prevent dust from spreading.
spread /spred/v.扩散；传播,
可指疾病、消息、谣言、火势等的传播或蔓延
用法：
spread out展开；散开。
spread...on...把…… 涂抹在
prevent/stop...from spreading阻止…… 传播 / 蔓延
spread the word传播消息；广而告之
We should take steps to prevent the virus（病毒） from spreading.
我们应该采取措施阻止病毒传播
树木可以防止灰尘扩散。
Planting trees is also a wonderful way to learn more about nature.
nature / ne t (r)/
n.自然; 天性; 性质
用法：
in nature 在自然界中
by nature 天生地
return to nature 回归自然
natural adj.自然的；天生的
种树也是了解大自然的好方法。
duty / dju ti/ n. 责任；职务，职责；上班；税
reach /ri t / v. 到达；抵达,伸手去够 / 拿
noon /nu n/ n.中午，正午
hole /h l/ n.洞，孔，漏洞
seedling / si dl / n.秧苗，幼苗，树苗
root /ru t/ n.根，根源
press /pres/ v.压；按，催促 n.报刊，出版社，压力
excellent / eks l nt/ adj.优秀的，杰出的
prevent /pr vent/ v.防止，阻止
dust /d st/ n.沙土，尘土
spread /spred/ v.扩散；传播
nature / ne t (r)/ n.自然; 天性; 性质
on duty
Read and take notes.
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. Thedays 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
by noon 中午之前 drop 掉落
overall 总的来说
well done 做的好
March 12 为具体的某天 介词使用 on
疑问词 how +不定式 做宾语
Li Ming: Yes. I learned to plant trees when I visited my uncle last spring. It was so much fun.
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.
Read and underline.
learn to do sth 学习做某事
last spring 去年春天
tell sb sth 告诉某人某事
tell sb to do sth 告诉某人做某事
dig 挖掘
palce v. 放置
be covered with 被……覆盖
press 按压，出版
forget to do 忘记去做……；water 浇水
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 agreat time with this project.
Read and underline.
protect…from…
保护……以免
excellent 优秀的
prevent …from… 阻止……发生
dust 灰尘
good points 好主意
nature 自然
Listen to the conversation again and answer the questions.
What’s the weather like today
Why does Li Ming think the project is about planting trees
Why do people plant trees
The temperature will reach 15°C by noon and drop to 2°C at night. Overall, it will be a warm, cloudy day.
We have a school project on March 12.
Trees help protect the soil from rainfall.Trees prevent dust from spreading.
How to plant trees
a large hole.
the seeding inside the hole.
its roots with soil.
down the soil .
Don’t forgrt
to the
tree.
Dig
Place
Cover
Press
water
How many steps
Five steps.
Leading in
The process of a seed growing
seed 种子
root 根
stem 茎
leaves 叶子
seeding 幼苗
Leading in
What does a seed need to help it grow
soil 土壤
sunshine
water 水
warmth 温度
Work in pairs. What are the benifits of planting trees
防风固土，治理沙化，
调节温度，冬暖夏凉，
减少噪声，心神安宁，
木头更多，增加林产
增加氧气，减少细菌灰尘病毒等有害物质
Exercises
—When will the temperature ______ 20℃
—Maybe by noon tomorrow.
A. get B. reach C. arrive D. get to
考查 到达 / 达到的词义辨析。reach 是及物动词，可直接接数值表示 达到温度、数量等；get 和 arrive 为不及物动词，接地点时需搭配介词get to + 地点、arrive in/at + 地点，无法直接接温度数值，故选 B。
Exercises
It’s our ______ to keep our classroom clean and tidy every day.
A. duty B. habit C. hobby D. time
考查名词词义。duty 责任、义务，It’s one’s duty to do sth.做某事是某人的责任；habit习惯、hobby爱好、time时间均不符合语境，故选 A。
Exercises
We can learn a lot about ______ when we go camping in the mountains, such as different kinds of plants and animals.
A. nature B. press C. duty D. noon
nature 自然，在山里露营了解自然符合语境；press报刊、duty责任、noon中午均不匹配，故选 A。
Exercises
The news of the sports meeting has __ ____ (spread) all over the school in an hour.
2.My mother __ ____ (press) the clothes for me before I went to school this morning.
3.It’s everyone’s duty __ ____ (protect) the environment around us.
4.The temperature usually ____ __ (reach) 35℃ in July in our city.
5.We must do something to prevent the wind from ____ __ (blow) the sand into the city.
spread
pressed
to protect
reaches
blowing
解析：
1.spread 的过去分词与原形一致，此处为现在完成时has + 过去分词，故填 spread。
2.this morning和后半句的过去式 went，可知用一般过去时，press 的过去式为 pressed。
3.It’s one’s duty to do sth.，it 作形式主语，真正主语为不定式，故填 to protect。
4.usually”可知用一般现在时，主语 temperature 为第三人称单数，故谓语动词用 reaches。
Thanks
