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(共34张PPT)
Unit2 Plant a Plant！
Lesson 7
Planting Trees
同学们，上一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！
词汇听写
课文导入
Look at the picture.
What are they doing
Do you know how to plant a tree
课文呈现
THINK ABOUT IT
·When is Tree Planting Day in China
·What are the basic steps for planting a tree
It’s March 12. Li Ming and his classmates are on a hillside.
They are planting trees as a school project. A worker is there helping them.
课文呈现
Li Ming：Excuse me, sir. We are digging a hole. Is it big enough
Worker：Maybe you should make the hole a little bigger. ① It must be large enough to hold the roots of the seedling. ②
Li Ming：I see. Thank you.
Worker：Now, put the seedling inside, cover the roots and fill the hole with dirt. ③ Then pack the dirt around the new tree with your feet.
Wang Mei：OK. By the way, there is another group of people down the hill. ④ Are they also coming to plant trees
温馨提示：此符号表示“考点精讲点拨”链接。
课文呈现
Worker：Yes. Many people are worried because the environment is changing, and they want to do something to help.
Li Ming：These changes are serious. When there is a dust storm in spring, it gets windy and dirty everywhere.
Wang Mei: Ms. Liu told us the wind blows the dirt and the sand here from the north. Nothing can stop the wind because there are not many trees left.
Worker: Exactly. A lot of rich lands in the northern area have turned into desert. ⑤
过去分词作后置定语
课文呈现
Li Ming：I suppose tree planting is very important work.
Wang Mei：For sure. I really like this project. It’s also a great way to learn about nature.
Worker：Yes. It’s fun and important to
plant plants. Oh, and please
remember to put a little water
in the bottom of the hole. ⑥
课文呈现
1)Read the lesson and write true(T) or false(F)．
1．Li Ming and Wang Mei were having a picnic on a farm.
(　　)
2．They asked a teacher for help. (　　)
3．Li Ming saw another group of people on the hillside.
(　　)
4．Wang Mei really liked the project. (　　)
F
F
F
T
课文呈现
2)Fill in the blanks with the words in the box. Then put the steps for planting a tree in the correct order.
□Put the ________of the seedling into the hole.
□Put a little water in the ________of the hole.
□________the roots and fill the hole with dirt.
□Pack the dirt ________the new tree with your feet.
□Dig a ________big enough to hold the roots of the seedling.
bottom　hole　around　cover　roots
roots
bottom
Cover
around
hole
2
3
4
5
1
课文呈现
3)Complete the passage with the missing phrases.
The Green Great Wall was built across ________of the country. What is the Green Great Wall？It is made up of strips of human planted forest.
Each year ________blow a lot of soil off the land. Things are getting more and more serious. About 3 600 square kilometres of grassland are taken by the Gobi Desert every year.
D
C
A．the Green Great Wall　B．planting more trees
C．dust storms D．the northern part
课文呈现
The Green Great Wall project started in 1978. By ________, people hold back the expansion of the desert and raise northern China’s forest coverage by 5% to 15%. By the year 2050, ________will be about 2 800 miles long.
B
A
A．the Green Great Wall　B．planting more trees
C．dust storms D．the northern part
课文呈现
1．
2．
3．
4)Work in pairs. Read the lesson and the passage above again. Why should we plant trees？Talk about it and list at least three reasons.
We can have a rest in the shade under the tree.
Trees can stop the wind.
Trees help us fulfill our basic needs.
考点精讲
① Maybe you should make the hole a little bigger .
[高频] 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。
考点1
宾语
宾语补足语
名词作宾语补足语
形容词作宾语补足语
动词原形(不带to的动词不定式)作宾语补足语
考点精讲
When I first came to New York, I had a lot of trouble making myself understood.
我刚到纽约时，想让别人听懂我的话非常困难。
The children must be made to clean their own room.
必须叫孩子们打扫他们自己的房间。
过去分词作宾语补足语
make sb. do sth. 的被动形式为sb. be made to do sth.(某人被迫做某事)
考点精讲
中考在线1：The new socialist countryside (社会主义新农村）makes farmers _________ their living condition. [岳阳]
A. to improve B. improve C. improving
【点拨】分析句子结构可知，此处是make sb. do sth. 的固定结构，动词make 后面接不带to 的不定式充当宾补。
B
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温馨提示:可返回原文
考点精讲
② It must be large enough to hold the roots of the seedling.
[高频] enough / 'n f/ adj. 充足的； adv. 足够地；充足地
e.g. He is old enough to go to school.
他(年龄) 足够大，可以上学了。
The ice isn’t thick enough for you to walk on.
这冰不够厚，你不能在上面走。
He has enough money/money enough to buy a car.
他有足够的钱买一辆汽车。
考点2
be adj. enough to do 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for 引出。
考点精讲
The box is too heavy for me to carry. ＝
The box is so heavy that I can’t carry it. ＝
The box isn’t light enough for me to carry.
这个箱子太重，我搬不动。
too...to... 表示“太……而不能……”，
so...that...表示“如此……以至于……”，
它们有时可与not...enough to do sth. 互换。
考点精讲
可前
可后
只能后置
+
enough
名词
形容词
或副词
+
enough
enough
+
考点精讲
中考在线2：It was _____ for us to solve the math problem. Few of us could even understand it. [黔西南]
A. easy enough B. enough easy
C. difficult enough D. enough difficult
【点拨】采用语法判定法。句意为“对我们来说解那个数学题太难了。甚至我们中几乎没有人能理解它”。enough 用作副词时，意思是“足够，充分”，一般应放在所修饰的形容词、副词或动词的后面。根据后一句“Few of us could even understand it.”可知，对我们来说解那个数学题太难了。
C
考点精讲
中考在线3：It’s not ______ to be friendly. You have to be a friend. Go and talk to Sam. [无锡]
A. good enough B. late enough C. too good D. too late
【点拨】考查形容词及固定用法。句意为“友好相处怎么都不算晚，你必须像个朋友的样子，去跟Sam 谈谈”。此处用到固定短语too…to… 表示“太……而不能……”。
D
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考点精讲
③Now, put the seedling inside, cover the roots and fill the hole with dirt.
cover /'k v / v. 覆盖 n. 盖子；封面
e.g. She covered her face with her hands. 她双手掩面。
The book needs a new cover. 这本书需要一个新封面。
The road is usually covered with snow.
这条路通常被雪覆盖。
考点3
be covered with被……覆盖
一语辨异： She used a cover to cover a box.
她用一个盖子盖一个箱子。
考点精讲
中考在线4：Please ______ the seed ______ soil.
A. covered; in B. cover; with
C. covered; with D. cover; on
【点拨】cover…with…“用……来覆盖……”，为主动形式；其被动形式为be covered with 被……覆盖。此句是祈使句，动词用原形。
B
考点精讲
fill /f l/ v. (to make sth. full of sth.) 充满；装满
e.g. He filled the cup with tea.
他把杯子里装满了茶。
The cup was filled with/ full of tea.
杯子里装满了茶。
考点4
① fill...with...“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 of。
考点精讲
fill 的固定搭配
fill in填写
fill out( 使) 膨胀，扩张，填写
fill up(使)充满，填满
中考在线5：生命中到处充满奇迹。 [营口]
Life is ___________ magic everywhere.
filled with
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考点精讲
④ By the way, there is another group of people down the hill.
by the way 顺便问一下
e.g. By the way, where is he
顺便问一下，他在哪里？
考点5
常用来表示说话人要转入一个新话题。
考点精讲
He ran to school all the way. 他一路跑着去上学。
In a way, the problem is a little difficult to solve.
从某种程度上说，这个问题解决起来有点儿棘手。
The little boy is on his way to the zoo.
这个小男孩正在去动物园的路上。
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 on one’s/the way (to...) 在(某人去……的)路上
考点精讲
中考在线6：—Xining is getting more and more beautiful.
—Oh, yes. I think more changes are ______. [青海]
A. on the radio B. in the end C. on the way
【点拨】考查介词短语辨析。on the radio 在广播中；in the end 最后；on the way 在路上，在途中。根据上文“西宁正变得越来越漂亮。”可知，此处表示的是更多的变化就要发生。
C
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考点精讲
⑤A lot of rich lands in the northern area have turned into desert.
northern /'n n/ adj. 北方的；北部的
考点6
考点精讲
e.g. He has traveled in some northern cities.
他在北方的一些城市旅游过。
Beijing lies in the north of China. It is a northern city.
北京位于中国北部。它是一个北方的城市。
“-ern”加在表示方位的名词之后，表示“……(方位) 的”。
考点精讲
turn into 变成
e.g. Water can turn into ice. 水可以变成冰。
How can we turn water into water vapor
我们如何能把水变成水蒸气？
考点7
turn 构成的短语
turn off 关掉 turn around 转身；翻转
turn back 折回；回来 turn down 把……调低
turn on 打开 turn over 翻转
turn up 把……调高；露面 turn out 出席；证明是
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考点精讲
⑥Oh, and please remember to put a little water in the bottom of the hole.
remember to do sth. 记住去做某事
考点8
① remember to do sth. 记得要做某事( 事情还未做)
② remember doing sth. 记得做过某事(事情已经做了)
辨析：remember to do sth.与remember doing sth.
考点精讲
e.g. I’ll remember to mail these letters.
我会记得去寄这些信。
When you leave the room, remember to turn off the light.
当你离开房间的时候记得要关灯。
My sister remembered locking the door.
我妹妹记得锁过门了。
考点精讲
中考在线7：To live a low-carbon life, we must remember ______ the lights when we leave the room. [贵阳]
A. to turn off B. turning off C. not to turn off
【点拨】句意为“为了过低碳生活，我们必须记住离开房间时关灯”。remember to do sth. 记得要做某事( 未做) ，remember doing sth. 记得做过某事( 已做) ；根据目的状语To live a low-carbon life 可知，离开房间时应及时关灯。
A
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课堂小结
本节课我们主要学习了以下重点内容：
（1）重点单词：cover, fill
（2）重点短语：by the way

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