【重点、难点概览】
一、词汇与短语：
plant, neither, nor, neither… nor, dig, earth, water(vt．), stop…from, workplace, mountain, grow, point to.
二、句型与日常交际用语：
1．The ground must be just right.
2．It’ s best to…
3．The hole should not be too deep.
4．Thanks to…
5．The Great Green Wall is 7, 000 kilometres long, and between 400 and 1, 700 kilometres wide.
6．What’ s next?
7．More or less.
三、语法：
含有情态动词的被动语态的构成和用法。
核心知识
1．语法：
含有情态动词的被动语态的构成及用法。
(1)构成形式：情态动词+be+过去分词。
e. g：More trees must be planted every year.
每年必须种更多的树。
其疑问句与否定句形式变化同一般句型的变化。
e．g：Must trees be planted each year?
Why must trees be planted each year?
The trees mustn’ t be cat down.
2．表计量的句型：
It is…long/wide/high/deep. 长/宽/高/深
e．g： The table is three metres long and two metres wide.
3．neither… nor：“既不…，也不…”。
当该词组作主语时，谓语动词与nor后的主语保持一致。
e. g：Neither Tom nor I am going to the park.
汤姆和我都不打算去公园。
与neither… nor… ”相对应的肯定词语是“both… and…”或“not only…but also…”。
4．stop… from：阻止(某人)做(某事)
We should stop the children from playing with fire.
我们要阻止孩子们玩火。
5．the more, the better：越多越好。
e. g：The harder you work, the more you get.
工作越努力，收获越多。
注意其结构为：the+比较级，the+比较级，表“越…，越…”
6．so that：“为了，以便于”，相当于in order that.
e．g：We got up early so that we could cauld catch the first bus.
【有关"Unit 18 Planting trees" 的教学设计】
教学设计1. Planting trees 植树
学习目标：
Ⅰ. 词汇学习
plant , wonderful , dig , deep , stick , tie , diagram , forest , copy , million , towards , mountain , harvest
neither…nor , knock…into… , next to , so that , cut down , millions of , stop…from doing sth , blow…away , not only…but also… , in a few years' time , far away , thanks to
Ⅱ. 句型学习
Tie the tree to the top of the stick to keep it straight .
The more , the better .
The river near here is over four metres deep .
The Great Green Wall is between 400 and 1 700 kilometres wide .
Trees must be watered well .
The earth should be pushed down hard .
More or less !
While you're doing that I'll go and get some water .
Ⅲ.语法学习
1 ) 含有情态动词的被动语态的构成及用法。
2 ) 计量的表达。
Ⅳ. 交际英语
如何让别人做某事。
教案内容：
内容1：教学过程
教学设计2. 初三第十八单元
学习目标：
教案内容：
内容1：教学过程