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八年级下册Lesson 7 Planting Trees教课课件ppt
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这是一份八年级下册Lesson 7 Planting Trees教课课件ppt，文件包含Lesson7pptx、Unit2第1课时DOC、Unit2DOC、L7课文朗读mp3等4份课件配套教学资源，其中PPT共41页， 欢迎下载使用。
1. Be able t use the wrds: hle, large, rt, seedling, cver, fill, dirt, pack, dust, strm, dirty, nrthern, bttm, dig a hle, , by the way, dust strm, a lt f, turn int, fr sure, remember t d sth., in the bttm f...
Learning Targets
2. T knw sme imprtant sentences: · It must be large enugh t hld the rts f the seedling. · Nthing can stp the wind because there are nt many trees left. · A lt f rich lands in the nrthern area have turned int desert. ... 3. T learn smething abut Tree Planting Day and knw hw t plant a tree
Wrds and expressins
hlelargertseedlingcverfilldirtstrm
n. 洞adj. 大的；巨大的n. 根n. 幼苗；秧苗v.覆盖 n.盖子v.装满；充满n. 泥土；污物n.暴风雨
dirtypackdustnrthernbttmdig a
adj.不干净的；肮脏的v. 堆积；压实；装（箱）n. 沙土；尘土；灰尘adj. 北方的；北部的n. 底部；最下部挖坑；挖洞用……填满
by the way dust strma lt f turn intfr sureremember t d sth.in the bttm f...
顺便说一下沙尘暴许多;大量变成肯定地；确定地记得去做某事在……底部
Why shuld we plants mre trees?
Trees make ur envirnment better.
fill…with… by the way dust strm turn intin the bttm f …It’s +adj. t d sth.
用…….填满顺便说一下沙尘暴变成在…….底部做某事怎么样
(1) When is Tree Planting Day in China?(2) What are the basic steps fr planting a tree?
THINK ABOUT IT
挖树坑Dig a hle
解草绳Untie rpe
树苗入坑Put the sapling in the hle
Hw t plant a tree?
一次培土Earth up fr the 1st time
提苗Lift the sapling slightly
围填pile up earth arund
浸透水Water the sapling
给树上支架Set up supprt frame
二次培土Earth up fr the 2nd time
It’s March 12. Li Ming and his classmates are n a hillside. They are planting trees as a schl prject. A wrker is there helping them.Li Ming: Excuse me, sir. We are digging a hle. Is it big enugh?Wrker: Maybe yu shuld make the hle a little bigger. It must be large enugh t hld the rts f the seedling.
Listen and read.
Presentatin
Li Ming: I see. Thank yu. Wrker: Nw, put the seedling inside, cver the rts and fill the hle with dirt. Then pack the dirt arund the new tree with yur feet. Wang Mei: OK. By the way, there is anther grup f peple dwn the hill. Are they als cming t plant trees? Wrker: Yes. Many peple are wrried because
the envirnment is changing, and they want t d smething t help. Li Ming: These changes are serius. When there is a dust strm in spring, it gets windy and dirty everywhere.Wang Mei: Ms. Liu tld us the wind blws the dirt and the sand here frm the nrth. Nthing can stp the the wind because there are nt many trees left.
Wrker: Exactly. A lt f rich lands in the nrthern area have turned int desert. Li Ming: I suppse tree planting is very imprtant wrk.Wang Mei: Fr sure. I really like this prject. It’s als a great way t learn abut nature.Wrker: Yes. It’s fun and imprtant t plant plants. Oh, and please remember t put a little water in the bttm f the hle.
Read and are Li Ming and his classmates ding n March 12? They are planting trees as a schl prject.2. Why d many peple cme t plant trees? Because the envirnment is changing and they want t d smething t help.
3. What are the basic steps fr planting a tree? Dig a hle, put the seedling inside, cver the rts, fill the hle with dirt, pack the dirt arund the tree and put water in the bttm f the hle.
1. li Ming and Wang Mei were having a picnic n a farm. ( )2. They asked a teacher fr help. ( )3. Li Ming saw anther grup f peple n the hillside. ( )4. Wang Mei really liked the prject. ( )
Read the lessn and write true (T) r false (F).
Let’s D It!
Fill in the blanks with the wrds in the bx.Then put the steps fr planting a tree in the crrect rder.
bttm hle arund cver rts
Put the ______ f the seedling int the hle. Put a little water in the _______f the hle. _______the rts and fill the hle with dirt.Pack the dirt ________ the new tree with yur feet.Dig a big ______ enugh t hld the rts fthe seedling.
Cmplete the passage with the missing phrases.
A. the Green Great Wall B. planting mre trees C. dust strms D. the nrthern part
The Green Great Wall was built acrss _____ ________________f the cuntry. What is the Green Great Wall? It is made up f strips f human-planted frest.
the nrthern part
Each year ______________ blw a lt f sil ff the land. Things are getting mre and mre serius. Abut 3 600 square kilmetresf grassland are taken by the Gbi Desert every year. The Green Great Wall prject started in 1978. By _____________________, peple hld back the expansin f the desert and raise nrthern China’s frest cverage by 5% t 15%. By the year 2050, _____________________will be abut 2 800 miles lng.
B. planting mre trees
A. the Green Great Wall
C. dust strms
Wrk in pairs. Read the lessn and the passage abve again. Why shuldwe plant trees? Talk abut it and list at least three reasns.
Li Ming and Wang Mei are planting trees n a hillside. Hw t plant a tree? First, they dig a hle and make sure the hle _____________ t hld the rts f the seedling. Secnd, they put the seedling inside, ______ the rts and _____ the hle _____ dirt. Then they pack the dirt arund the new tree _____ their feet. At last, they put a little water ______________ the hle.
Fill in the blanks and try t retell the text.
large enugh
in the bttm f
Read and try t recite the cnversatins in 5-10 minutes.
1. Rle play in grups;2. Rle play in frnt f the class
We’ll see which grup des the best.
1. It must be large enugh t hld the rts f the seedling. （1）must表示肯定推测，意为“一定；肯定”。 例：This bk must be Jack's，because his name is n its cver. 这本书一定是杰克的，因为封面上有 他的名字。 （2）large adj.大的，巨大的。常指面积或范围大， 其反义词为small(小的)。 （3）enugh adv.足够地。修饰形容词或副词时要 放在所修饰词的后面。例：This girl is careful enugh.这个女孩足够的细心。
Language pints
2.Nw, put the seedling inside, cver the rts and fill the hle with dirt. (1)cver v．覆盖。常用短语：cver…with…用……盖住…… 其被动语态结构为：be cvered with…被……覆盖。例：Please cver the pt with a piece f paper.请用一张纸盖住这口锅。
(2)fill v．装满；充满。常用短语：fill… with…用……装满……；be filled with…被装满/充满…… 例：He filled the bttle with wine.他用酒装满了那只瓶子。The new rads and streets will be filled with many cars and buses sn. 新的道路又将被很多公共汽车和小汽车塞满。
3. By the way，there is anther grup f peple dwn the hill. by the way是固定搭配，意为“顺便说/问一下”。 常放在句首，用于在主要话题或交流中插入题外 的话或问题。 例：By the way，hw ld are yu？ 顺便问一下，你多大了？
4. Ms.Liu tld us the wind blws the dirt and the sand here frm the nrth. 此句中，us后面是一个省略了连词that引导的宾语从句。主句为一般过去时，宾语从句用相应的过去时态。但在英语中，如果宾语从句陈述的是客观事实、自然现象、科学真理等时，从句的时态不受主句时态的限制，用一般现在时。例：He knew that the Yangtze River is the lngest river in China.他知道长江是中国最长的河流。
5. Nthing can stp the wind because there are nt many trees left. 此句是一个主从复合句。句中because 引导原因状语从句。because表示直接的原因，常用来回答 why引导的特殊疑问句。 【链接】其他用来引导原因状语从句的连词： ① fr引导的从句是对主句发生的动作一些补充 说明，且不可位于主句之前。
②since意为“既然”，引导的从句表示附带的原因，或者表示已知的、显然的理由，通常放在句首。③as所表示的原因语气最弱，只是对主句的附带说明，重点在主句。as从句通常放在主句之前。例：I went t see him, fr I had smething t tell him.我去见他，因为我有事要告诉他。Since we have n mney，we can't buy that car. 既然我们没钱，就不能买那辆车了。As it is raining，yu'd better take a taxi.下雨了，你最好乘出租车。
6. It's als a great way t learn abut nature. a way t d sth.意为“做某事的一种方式/方法”。 其中，不定式作way的后置定语。相当于a way f ding sth.。 例：It's a gd way t learn English.＝It's a gd way f learning English. 这是一个学习英语的好方法。 It is +adj.+fr/f sb. t d sth. 对于某人来说，做某 事是……的。 例：It's kind f yu t help me yesterday. 昨天你帮助了我，你真是太好了。
7. Oh，and please remember t put a little water in the bttm f the hle.(1)remember t d sth.记得要做某事 (此事还未做)。例：Remember t clse the windw when yu leave the ffice.你离开办公室时，记得关窗户。(2)at/in the bttm f…在……的底部。例：I want t tell yu frm the bttm f my heart that I am truly srry.我从心底想向你表示我真的很抱歉。
一、选择适当的单词或者短语填空。
fill with by the way dust strm turn int fr sure cverin the bttm f dig large nrthern
The ____ _____ften happens in the ________ area.
2. Please _____ the glass ______ milk.3. If yu nly have the name, yu cannt cnfirm the identity_____ ______.
fr sure
4. All f us can _____ ur dreams _____ practical reality. 5. I nticed there was a hle ____ ____ _______ ___ his pail.
6. Yu have 400 wrds fr each questin, ____ ____ ____.7. ____ a _______ hle and put the tree inside.8. The cluds had spread and _______the entire sky.
by the
顺便问一下，这是你的书吗？ By the way, is this yur bk?2. 你难保证明天不下雨。 Yu can’t say fr sure that it wn’t rain tmrrw.3. 这个房间充满了烟雾。 The rm is filled with smke.4. 渐渐地，冰雨似乎变成了雪花。 The icy rain seemed like t turn int snw slwly.
1. There are nt enugh trees ____ n the hill. Let's plant sme n Tree Planting Day. A．leave B．left C．leaves D．t leave2. Yesterday Mr.Wang tld us the earth always ____ arund the sun. A．t g B．ges C．went D．ging
3. Audrey Hepburn, ne f the greatest actresses， was _____ t take n challenges in her life. A．enugh brave B．brave enugh C．stupid enugh D．enugh stupid4. Harry's been driving all day—he_____ be tired. A．need B．can C．shall D．must5. Remember _____ them dwn when yu see them again in a passage. A.writing B.t writing C.write D.t write
1. Learn sme new wrds and expressins.2. Learn abut mdal verbs must and ther imprtant grammar f this lessn.
1. Be able t use the wrds: hle, large, rt, seedling, cver, fill, dirt, pack, dust, strm, dirty, nrthern, bttm, dig a hle, , by the way, dust strm, a lt f, turn int, fr sure, remember t d sth., in the bttm f...
Learning Targets
2. T knw sme imprtant sentences: · It must be large enugh t hld the rts f the seedling. · Nthing can stp the wind because there are nt many trees left. · A lt f rich lands in the nrthern area have turned int desert. ... 3. T learn smething abut Tree Planting Day and knw hw t plant a tree
Wrds and expressins
hlelargertseedlingcverfilldirtstrm
n. 洞adj. 大的；巨大的n. 根n. 幼苗；秧苗v.覆盖 n.盖子v.装满；充满n. 泥土；污物n.暴风雨
dirtypackdustnrthernbttmdig a
adj.不干净的；肮脏的v. 堆积；压实；装（箱）n. 沙土；尘土；灰尘adj. 北方的；北部的n. 底部；最下部挖坑；挖洞用……填满
by the way dust strma lt f turn intfr sureremember t d sth.in the bttm f...
顺便说一下沙尘暴许多;大量变成肯定地；确定地记得去做某事在……底部
Why shuld we plants mre trees?
Trees make ur envirnment better.
fill…with… by the way dust strm turn intin the bttm f …It’s +adj. t d sth.
用…….填满顺便说一下沙尘暴变成在…….底部做某事怎么样
(1) When is Tree Planting Day in China?(2) What are the basic steps fr planting a tree?
THINK ABOUT IT
挖树坑Dig a hle
解草绳Untie rpe
树苗入坑Put the sapling in the hle
Hw t plant a tree?
一次培土Earth up fr the 1st time
提苗Lift the sapling slightly
围填pile up earth arund
浸透水Water the sapling
给树上支架Set up supprt frame
二次培土Earth up fr the 2nd time
It’s March 12. Li Ming and his classmates are n a hillside. They are planting trees as a schl prject. A wrker is there helping them.Li Ming: Excuse me, sir. We are digging a hle. Is it big enugh?Wrker: Maybe yu shuld make the hle a little bigger. It must be large enugh t hld the rts f the seedling.
Listen and read.
Presentatin
Li Ming: I see. Thank yu. Wrker: Nw, put the seedling inside, cver the rts and fill the hle with dirt. Then pack the dirt arund the new tree with yur feet. Wang Mei: OK. By the way, there is anther grup f peple dwn the hill. Are they als cming t plant trees? Wrker: Yes. Many peple are wrried because
the envirnment is changing, and they want t d smething t help. Li Ming: These changes are serius. When there is a dust strm in spring, it gets windy and dirty everywhere.Wang Mei: Ms. Liu tld us the wind blws the dirt and the sand here frm the nrth. Nthing can stp the the wind because there are nt many trees left.
Wrker: Exactly. A lt f rich lands in the nrthern area have turned int desert. Li Ming: I suppse tree planting is very imprtant wrk.Wang Mei: Fr sure. I really like this prject. It’s als a great way t learn abut nature.Wrker: Yes. It’s fun and imprtant t plant plants. Oh, and please remember t put a little water in the bttm f the hle.
Read and are Li Ming and his classmates ding n March 12? They are planting trees as a schl prject.2. Why d many peple cme t plant trees? Because the envirnment is changing and they want t d smething t help.
3. What are the basic steps fr planting a tree? Dig a hle, put the seedling inside, cver the rts, fill the hle with dirt, pack the dirt arund the tree and put water in the bttm f the hle.
1. li Ming and Wang Mei were having a picnic n a farm. ( )2. They asked a teacher fr help. ( )3. Li Ming saw anther grup f peple n the hillside. ( )4. Wang Mei really liked the prject. ( )
Read the lessn and write true (T) r false (F).
Let’s D It!
Fill in the blanks with the wrds in the bx.Then put the steps fr planting a tree in the crrect rder.
bttm hle arund cver rts
Put the ______ f the seedling int the hle. Put a little water in the _______f the hle. _______the rts and fill the hle with dirt.Pack the dirt ________ the new tree with yur feet.Dig a big ______ enugh t hld the rts fthe seedling.
Cmplete the passage with the missing phrases.
A. the Green Great Wall B. planting mre trees C. dust strms D. the nrthern part
The Green Great Wall was built acrss _____ ________________f the cuntry. What is the Green Great Wall? It is made up f strips f human-planted frest.
the nrthern part
Each year ______________ blw a lt f sil ff the land. Things are getting mre and mre serius. Abut 3 600 square kilmetresf grassland are taken by the Gbi Desert every year. The Green Great Wall prject started in 1978. By _____________________, peple hld back the expansin f the desert and raise nrthern China’s frest cverage by 5% t 15%. By the year 2050, _____________________will be abut 2 800 miles lng.
B. planting mre trees
A. the Green Great Wall
C. dust strms
Wrk in pairs. Read the lessn and the passage abve again. Why shuldwe plant trees? Talk abut it and list at least three reasns.
Li Ming and Wang Mei are planting trees n a hillside. Hw t plant a tree? First, they dig a hle and make sure the hle _____________ t hld the rts f the seedling. Secnd, they put the seedling inside, ______ the rts and _____ the hle _____ dirt. Then they pack the dirt arund the new tree _____ their feet. At last, they put a little water ______________ the hle.
Fill in the blanks and try t retell the text.
large enugh
in the bttm f
Read and try t recite the cnversatins in 5-10 minutes.
1. Rle play in grups;2. Rle play in frnt f the class
We’ll see which grup des the best.
1. It must be large enugh t hld the rts f the seedling. （1）must表示肯定推测，意为“一定；肯定”。 例：This bk must be Jack's，because his name is n its cver. 这本书一定是杰克的，因为封面上有 他的名字。 （2）large adj.大的，巨大的。常指面积或范围大， 其反义词为small(小的)。 （3）enugh adv.足够地。修饰形容词或副词时要 放在所修饰词的后面。例：This girl is careful enugh.这个女孩足够的细心。
Language pints
2.Nw, put the seedling inside, cver the rts and fill the hle with dirt. (1)cver v．覆盖。常用短语：cver…with…用……盖住…… 其被动语态结构为：be cvered with…被……覆盖。例：Please cver the pt with a piece f paper.请用一张纸盖住这口锅。
(2)fill v．装满；充满。常用短语：fill… with…用……装满……；be filled with…被装满/充满…… 例：He filled the bttle with wine.他用酒装满了那只瓶子。The new rads and streets will be filled with many cars and buses sn. 新的道路又将被很多公共汽车和小汽车塞满。
3. By the way，there is anther grup f peple dwn the hill. by the way是固定搭配，意为“顺便说/问一下”。 常放在句首，用于在主要话题或交流中插入题外 的话或问题。 例：By the way，hw ld are yu？ 顺便问一下，你多大了？
4. Ms.Liu tld us the wind blws the dirt and the sand here frm the nrth. 此句中，us后面是一个省略了连词that引导的宾语从句。主句为一般过去时，宾语从句用相应的过去时态。但在英语中，如果宾语从句陈述的是客观事实、自然现象、科学真理等时，从句的时态不受主句时态的限制，用一般现在时。例：He knew that the Yangtze River is the lngest river in China.他知道长江是中国最长的河流。
5. Nthing can stp the wind because there are nt many trees left. 此句是一个主从复合句。句中because 引导原因状语从句。because表示直接的原因，常用来回答 why引导的特殊疑问句。 【链接】其他用来引导原因状语从句的连词： ① fr引导的从句是对主句发生的动作一些补充 说明，且不可位于主句之前。
②since意为“既然”，引导的从句表示附带的原因，或者表示已知的、显然的理由，通常放在句首。③as所表示的原因语气最弱，只是对主句的附带说明，重点在主句。as从句通常放在主句之前。例：I went t see him, fr I had smething t tell him.我去见他，因为我有事要告诉他。Since we have n mney，we can't buy that car. 既然我们没钱，就不能买那辆车了。As it is raining，yu'd better take a taxi.下雨了，你最好乘出租车。
6. It's als a great way t learn abut nature. a way t d sth.意为“做某事的一种方式/方法”。 其中，不定式作way的后置定语。相当于a way f ding sth.。 例：It's a gd way t learn English.＝It's a gd way f learning English. 这是一个学习英语的好方法。 It is +adj.+fr/f sb. t d sth. 对于某人来说，做某 事是……的。 例：It's kind f yu t help me yesterday. 昨天你帮助了我，你真是太好了。
7. Oh，and please remember t put a little water in the bttm f the hle.(1)remember t d sth.记得要做某事 (此事还未做)。例：Remember t clse the windw when yu leave the ffice.你离开办公室时，记得关窗户。(2)at/in the bttm f…在……的底部。例：I want t tell yu frm the bttm f my heart that I am truly srry.我从心底想向你表示我真的很抱歉。
一、选择适当的单词或者短语填空。
fill with by the way dust strm turn int fr sure cverin the bttm f dig large nrthern
The ____ _____ften happens in the ________ area.
2. Please _____ the glass ______ milk.3. If yu nly have the name, yu cannt cnfirm the identity_____ ______.
fr sure
4. All f us can _____ ur dreams _____ practical reality. 5. I nticed there was a hle ____ ____ _______ ___ his pail.
6. Yu have 400 wrds fr each questin, ____ ____ ____.7. ____ a _______ hle and put the tree inside.8. The cluds had spread and _______the entire sky.
by the
顺便问一下，这是你的书吗？ By the way, is this yur bk?2. 你难保证明天不下雨。 Yu can’t say fr sure that it wn’t rain tmrrw.3. 这个房间充满了烟雾。 The rm is filled with smke.4. 渐渐地，冰雨似乎变成了雪花。 The icy rain seemed like t turn int snw slwly.
1. There are nt enugh trees ____ n the hill. Let's plant sme n Tree Planting Day. A．leave B．left C．leaves D．t leave2. Yesterday Mr.Wang tld us the earth always ____ arund the sun. A．t g B．ges C．went D．ging
3. Audrey Hepburn, ne f the greatest actresses， was _____ t take n challenges in her life. A．enugh brave B．brave enugh C．stupid enugh D．enugh stupid4. Harry's been driving all day—he_____ be tired. A．need B．can C．shall D．must5. Remember _____ them dwn when yu see them again in a passage. A.writing B.t writing C.write D.t write
1. Learn sme new wrds and expressins.2. Learn abut mdal verbs must and ther imprtant grammar f this lessn.
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