【教学建议】
教学教法
通过本单元教学，学生应能熟练地运用“就餐”用语，对话可以让学生自由表演；复习名词性从句，重点讲解同位语从句的用法；了解粮食生产发展的历史、当今存在的问题及解决粮食不足的途径，在处理语篇时，注重学生对具体语境中词汇，语法的领悟与把握，多多挖掘语篇中的词汇亮点。
语言点
1.For one thing……for another……意为“一则……再则……”
I don"t want to buy the coat.For one thing，I don"t like the colour，and foranother，the price is too high.
You get a low mark，for one thing，because you did not do your homework.
For one thing，I"ve no money；for another，I have no time.So I can"t go.
2.go hungry意为挨饿，go（link v.）表示转变，往往只情况变坏，后面的表语通常由形容词充当。
He went almost mad when he heard the news.
The heat has caused the milk to go sour.
The telephone has gone dead.电话声沉寂下来。
He went off his head.他失去了理智。
His conduct in school has gone from bad to worse.他在校表现越来越糟。
3．让步状语从句可用
whichever，whatever，whoever，wherever，whenever引出，分别相当于no matter which/what/who/how/when/where.
You can either keep the book for yourself or give it to your friend，whichever（=no matter which）you choose.
However（=no matter how）you go，it"ll take you at least two days.
Don"t open the door whoever（=no matter who）knocks.
Whatever（=no matter what）you go，I will go with you.
However hard（=no matter how hard）he worked，he could not please the boss.
4.result in：导致，产生……结果。
The accident resulted in three deaths.事故引起三起死亡。
Result from：由……造成，因……而产生Sickness often results from eating too much.
表时引起，产生，导致还可以用cause sb/sth或lead to＋n.如：what caused his illness？Do you think this will cause much confusion？
Too much work and too little rest of ten leads to illness.
Differences of opinions led to arguments.
5.ruin：毁坏，毁掉，使破产，使失去前途…
Bad weather ruined our holiday.The rain has ruined my new dress.
His life was ruined by drink.
The stock market crash ruined many people.股票市场的崩溃使很多人破产。
6．Make sense：讲得通，很有意义，有道理，明智等。
What he told us about the situation simply doesn"t make sense.他对形式的说明根本讲不通。
No matter how you read it，this sentence doesn"t make（any）sence.无论如何读这个句子，他都不能被理解。
It makes sense to take care of one"s health.照顾好自己的身体是明智的。
7.day by day表示“逐着每天（变化）的”。例如：（1）The young tree grows taller and thicker day by day.
这棵小树长得一天比一天高，一天比一天粗了。
（2）Her mother grows older and weaker day by day.
她母亲一天一天发衰老了，身体也变得越来越弱
8．now and again的含义
now and again=now and then，意为occasionally，once in a while偶尔，不时（1）We go to the films now and again.我们时常去看电影。
（2）When he was a little boy，Lincoln went to school now and then.
林肯小的时候，他时断时续地去上学。
9．in other words表示“换言之”，“换句话说”。如：（1）In other words，we can finish the work on time only in this way.
换句话说，只有这样我们才能准时完成工作。
（2）In other words，you have broken the law.换言之，你违法了。
10．1）注意记住并区别由word构成的词组以及这些短语中world一词的单复数。
keep one"s word to sb.（对某人）信守诺言，break one"s word失信，eat one"swords承认说错话have a word with sb.，与某人谈话，，have words with sb.，与某人口角。如：
（2）I want to have a word with him.我想跟他谈谈话。
（3）Jack often has words with his neighbours.
杰克经常与他的邻居发生口角。
（4）I said yesterday that you had stolen my car.Now I"m eating my words.
昨天我说你偷了我的车，现在我收回这话并向你道歉。
（5）He is an honest man who always keeps his word.他是一个诚实的人，很守信用。
（6）Never break your word，or no one will trust you.
不要食言，否则没有人会信任你。
语法
本单元复习英语三大从句之一的名词性从句。首先，要清楚名词性从句的概念、构成和分类；其次，要清楚名词性从句引导在从句的语法作用；再次，要清楚同位语从句与定语从句和强调句型的区别。
名词性从句是高中英语教学的一个重点，也是各类各级考试的必然考点。常见的考点有：1．由that，if/whether，wh-疑问词，wh-ever词引导的名词性从句。
2．名词性从句的语序问题。
3．if与whether的区别。
4．替代词it与名词性从句。
5．名词性从句作主语时的主谓一致问题。
6．wh-ever词引导名词性从句与让步状语从句的区别【教学设计方案】
StepI：Introduction
Good morning，class.First，I will ask you a question：“Do you often feel hungry？”Wanglin，please…
While，maybe you don"t often feel hungry，because you have plenty to eat.But in some poor areas in the world，many people even starve to death.Is that true？Now，please open your book to page 20
And find out the answer：“How many people starve to death each year？”I onlygive you one minute.If you find out the answer，put up your hand.Let"s see whois the first.
StepII：Fast reading；A.Scanning：
Find out the answer to the following question within two minutes：“why is farmland being lost？”
B.Reading comprehension1.What can be dome to increase the food supply？
A.to plant new trees.
