沪教牛津版（2024）七年级下册Unit 4 Save the trees.优质课件ppt

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Recgnize wrds cntaining /sk/, /sp/, /st/, /sl/, /sm/, /pl/, /pr/, /kw/ and /tw/.
Use the present cntinuus tense t describe the cntent f the picture.
Discuss the imprtance f trees t human beings thrugh grup activities.
Learning bjects
Tngue Twister
Challenge yurselves
I scream, yu scream, we all scream fr ice-cream! A pleasant peasant keeps a pleasant pheasant and bth the peasant and the pheasant are having a pleasant time tgether. Please pay prmptly.
Read ludly.
认识辅音连缀/sk/, /sp/ 和/st/。 /sk/是字母组合sc, sch 和sk在单词中的读音； /sp/是字母组合sp在单词中的读音；/st/是字母组合st在单词中的读音。朗读下列含有/sk/, /sp/ 和/st/的单词和例句，注意划线部分的读音。
ask scaleschlskycrispgraspspacespeedfirststarstudywest
Steve is a student. He always skates at half past three.I have bught a special gift fr my favurite star in ur schl.
认识辅音连缀/sl/和/sm/。 /sl/和/sm/是字母组合sl和sm在单词中的读音。朗读下列含有/sl/和/sm/的单词，注意划线部分的读音。
认识辅音连缀/pl/和/pr/。 /pl/和/pr/是字母组合pl和pr在单词中读音。朗读下列含有/pl/和/pr/的单词，注意划线部分的读音。
认识辅音连缀/kw/和/tw/。 /kw/和/tw/是字母组合qu和tw在单词中读音。朗读下列含有/kw/和/tw/的单词，注意划线部分的读音。
1. Stanley is small and slim. He is a smart student, but he wrks slwly when he is sleepy.2. The queen likes playing sprt. She likes skating a lt. She can skate at a very high speed because she practises a lt.3. They planned t have a quick meeting n the prject fr twenty minutes, but the speaker did nt stp speaking until twenty past twelve.
Read these sentences. Pay attentin t the letters in bld.
( )1. A. plane B. pleaseC. practice D. plan( )2. A. ski B. sky C. schl D. speed( )3. A. stre B. spendC. stp D. stand( )4. A. price B. presentC. pleasure D. pretty( )5. A. twice B. quickC. quite D. quiet
选出划线部分发音不同的选项.
In grups, discuss why trees are imprtant.
prvide peple with …
fight against pllutin
prtect the envirnment
Trees are very imprtant.
wd t make furniture
fruit, il and tea
stp sandstrms
stp the sil frm being washed away
take in harmful gases frm the air
prduce xygen fr peple t breathe
Tree are very imprtant. First, they are gd fr peple’s health because they take in harmful gases frm the air and prduce xygen fr peple t breathe. Secnd, they can prtect the envirnment by stpping the sil frm being washed away and by stpping sandstrms. Third, trees als prvide peple with a lt f things. We use wd t make furniture. We can als get fruit, il and tea frm trees. S we must prtect trees.
It is Tree Planting Day. Sme peple are wrking near Rebecca’s hme. Rebecca tk sme phts f them.
Tree Planting Day
Pre-writing
We use the present cntinuus tense t describe what is happening in phts r pictures.
dig v. 挖The dg is digging a hle.
hle v. 洞The hle in the tree trunk is the hme f the small animal.
carry v. 搬；扛；背It is widely believed that bats carry many viruses.
cntainer n. 容器This new cntainer is cleverly designed and easily made.
What are the wrkers ding nw?
They are planting trees and flwers nw.
In pairs, discuss what the peple are ding in the pictures.
Nw make cnversatins abut what is ging n in the pictures with the wrds in brackets.
What is/ are … ding?
(tw wrkers /dig/hles/grund)(anther wrker/plant/tree/in/hle)
Tw wrkers are digging hles in the grund. Anther wrker is planting a tree in a hle.
(tw wrkers /carry/large cntainer)(anther wrker/plant/flwers/in/cntainer)
Tw wrkers are carrying a large cntainer. Anther wrker is planting sme flwers in a cntainer.
(tw wrkers/clean/area)(anther wrker/water/plants)
Tw wrkers are cleaning the area. Anther wrker is watering the plants.
(wrkers/leave/area)(peple/say/gdbye/wrkers)
The wrkers are leaving the area.Peple are saying gdbye t the wrkers.
Yesterday was Tree Planting Day. Sme wrkers near Rebecca’s hme. At first, the wrkers dug hles in the grund and planted trees in the hles. Then, the wrkers carried large cntainers and planted flwers in them. Later, tw wrkers cleaned the area and watered the plants. At first, the wrkers let the area and the peple said gdbye t them. The wrkers made this place mre beautiful.
_____________
Planting trees
Hw t plant trees
______________
Trees Planting Day
Put the sil
water trees
in the garden
____________
in the park
树木对人类的贡献很大。假如你是李华，今天是植树节，你和班里的同学去了郊区植树。请你根据以下内容提示写一篇英语短文，介绍你们的植树活动，谈谈树木对人类的贡献以及你自己的想法。短文需包括以下要点：
Step 1. 谋篇布局
第一步：人称：________________________ ；时态：________________________。思路点拨: 列框架―→激活词汇 ―→拓展写作内容(注意时态)
一般现在时、现在进行时
你能想起与短文有关的学过的词汇吗？试一下吧！1. 挖洞2. 把…放入 3. 浇水 4. 使空气干净5. 保护地球 6. 在许多方面
dig a hleput … intwatermake the air cleanprtect the Earthin many ways
Step 2: 激活词汇
运用以下结构，可以让你的文章更出彩哦。1. keep sb./sth. adj.意为“保持某人/某物……”。【例句】它让我们活着。 It keeps us alive. 【仿写】树木保持空气清洁。
The trees keep the air clean.
Step 3: 精彩结构
2. It is adj. t d sth. 意为“做某事是……的”。【例句】在春天旅行是令人兴奋的。It is exciting t take a trip in spring.【仿写】每年植树保护我们的地球是很重要的。
It is imprtant t plant trees every year t prtect ur Earth.
Step 4: 参考连接词 and, but, s, because, during, besides…
Tday is Tree Planting Day. We are planting trees in the park.Lk! We are having wnderful teamwrk. The girls are digging hles in the grund. The bys are putting trees in the hles and planting them carefully. Sme are watering trees, and thers are cleaning the area. We are talking and laughing happily.
Trees help us in many ways. They can keep the air clean. Als, they make ur lives mre cnvenient. We get fruit and il frm them. We can't imagine ur wrld withut trees. I think it is imprtant t plant trees every year t prtect ur earth. And I believe ur Earth will becme much mre beautiful if everyne plants a tree each year.
Hmewrk
Finish the writing exercise paper.
Be a pineapple: stand tall, wear a crwn, and be sweet n the inside.做一个菠萝：站得笔直，头戴王冠，内心甜美。