八年级下册Lesson 7 Planting Trees课文内容ppt课件

这是一份八年级下册Lesson 7 Planting Trees课文内容ppt课件，文件包含Lesson7pptx、Lesson7课文mp3、植树节mp4、种树教程mp4等4份课件配套教学资源，其中PPT共33页， 欢迎下载使用。
Key wrds & phrases: hle; large; cver; fill; strm; dirty; nrthern; bttm; ; by the way; dust strm; turn int; fr sure; in the bttm f. Key sentences: 1. It must be large enugh t hld the rts f the seedling. 2. Ms. Liu tld us the wind blws the dirt and the sand here frm the nrth. 3. It’s fun and imprtant t plant plants.T learn hw t plant a tree and prtect the envirnment in ur daily life.
Wrds & Expressins
hlelargertseedlingcverfill
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
dirtpackduststrmdirtynrthern
n. 泥土；污物v. 堆积；压实；装箱n. 沙土；尘土；灰尘n.暴风雨adj.不干净的；肮脏的adj. 北方的；北部的
the waydust strmturn intfr surein the bttm f
n. 底部；最下部用……填满顺便说一下沙尘暴变成肯定地；确定地在……底部
D yu knw when Tree Planting Day is in China?
It’s n March 12 .
Let's watch a vide !
D yu knw hw t plant a tree?
put the seedling int the hle
fill the hle with dirt
pack the dirt arund the new tree
water the new tree
Presentatin
THINK ABOUT IT·When is Tree Planting Day in China?·What are the basic steps fr planting a tree? 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. 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 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.
Let’s D It!　
1. Read the lessn and write true(T) r false(F)．
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. (　　)
2. Fill in the blanks with the wrds in the bx. Then put the steps fr planting a tree in the crrect rder.
□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 f the seedling.
bttm　hle　arund　cver　rts
3. Cmplete the passage with the missing phrases.
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. Each year ________blw a lt f sil ff the land. Things are getting mre and mre serius. Abut 3 600 square kilmetres f 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.
A．the Green Great Wall　B．planting mre treesC．dust strms D．the nrthern part
4. Wrk in pairs. Read the lessn and the passage abve again. Why shuld we plant trees？Talk abut it and list at least three reasns.
We can have a rest in the shade under the tree.
Trees can stp the dust strm.
Trees help us fulfill ur basic needs.
Language pints
1. Maybe yu shuld make the hle a little bigger . (教材P18)
make+sb./sth. ＋宾补　使某人/ 某物……e.g. They made him captain. 他们选他当队长。 The news made him sad. 那条消息使他悲伤。He made me repeat it. 他让我将它重述一遍。
When I first came t New Yrk, I had a lt f truble making myself understd.我刚到纽约时，想让别人听懂我的话非常困难。The children must be made t clean their wn rm.必须叫孩子们打扫他们自己的房间。
2. It must be large enugh t hld the rts f the seedling. (教材P18)
enugh adj. 充足的； adv. 足够地；充足地be enugh t d sth.意为“足够……做某事”，动词不定式表示结果，其逻辑主语可用介词fr 引出。e.g. He is ld enugh t g t schl. 他(年龄) 足够大，可以上学了。The ice isn’t thick enugh fr yu t walk n.这冰不够厚，你不能在上面走。He has enugh mney/mney enugh t buy a car.他有足够的钱买一辆汽车。
表示“太……而不能……”，表示“如此……以至于……”，它们有时可与 t d sth. 互换。
e.g. The bx is t heavy fr me t carry. ＝The bx is s heavy that I can’t carry it. ＝The bx isn’t light enugh fr me t carry. 这个箱子太重，我搬不动。
3. Nw, put the seedling inside, cver the rts and fill the hle with dirt. (教材P18)
cver v. 覆盖 n. 盖子；封面 作动词常用结构：cver A with B 用B覆盖Abe cvered with 被……覆盖 e.g. She cvered her face with her hands. 她双手掩面。 The bk needs a new cver. 这本书需要一个新封面。 The rad is usually cvered with snw. 这条路通常被雪覆盖。
She used a cver t cver a bx. 她用一个盖子盖一个箱子。
fill v.充满；装满 常用结构：① “用……装满……”，主语是人，强调动作的过程。② be filled with 装满；充满。同be full f。e.g. He filled the cup with tea.他把杯子里装满了茶。The cup was filled with/ full f tea.杯子里装满了茶。
fill 的其他固定搭配fill in填写fill ut( 使) 膨胀，扩张，填写fill up(使)充满，填满
4. By the way, there is anther grup f peple dwn the hill. (教材P18)
by the way 顺便问一下 常用来表示说话人要转入一个新话题。e.g. By the way, where is he? 顺便问一下，他在哪里？
由 way构成的其他词组：① all the way 一路上；自始至终② in a way 在某种程度上③ n ne’s/the way (t...) 在(某人去……的)路上④ in the way 妨碍；挡道
5. A lt f rich lands in the nrthern area have turned int desert. (教材P18)
turn int 变成e.g. Water can turn int ice. 水可以变成冰。Hw can we turn water int water vapr?我们如何能把水变成水蒸气？
turn 构成的短语turn ff 关掉 turn arund 转身；翻转turn back 折回；回来 turn dwn 把……调低turn n 打开 turn ver 翻转turn up 把……调高；露面 turn ut 出席；证明是
6. Oh, and please remember t put a little water in the bttm f the hle. (教材P18)
remember t d sth. 记得去做某事
辨析：remember t d sth.与remember ding sth.
e.g. I’ll remember t mail these letters.我会记得去寄这些信。When yu leave the rm, remember t turn ff the light.当你离开房间的时候记得要关灯。My sister remembered lcking the dr.我妹妹记得锁过门了。
1．What can we cver the rf ________？The rain is t heavy.A．in B．with C．f D．fr2．There is a fish ________ the bttle.A．t the bttm f B．at the bttm fC．t bttm f D．at bttm f
3．Lk ut! The cup is ________ht water. A．full f B．fill with C．full D．fill
4．—What happened t Mark?—He fell________the bike________a snwy mrning.A．ff; in　　B．dwn; at　　C．ff; n D. dwn; in