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视频标签：Working,the land
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视频课题：人教版高中英语必修四Book4 Unit2 Working the land Learning about language甘肃
教学设计、课堂实录及教案：人教版高中英语必修四Book4 Unit2 Working the land Learning about language甘肃省级优课
Unit2 Learning about language
Teaching Goals:
1. Help the students to learn to use Verb-ing form in speaking and writing; 2. To enable Ss to master some new words and expressions.
3.To Help the students to learn the basic rules of Verb-ing form used as subject and object.
Teaching important point:
To train Ss to summarize the usage of verb-ing form . Teaching difficult point:
To guide Ss to write sentences using V-ing form . Teaching methods:
Learning through observation; Learning through self-study and cooperation; Task-based learning Teaching aids:
A computer, a projector Teaching Procedures:
Step I: Revision: Talk about Yuan Longping’s personal information
Achievements:1. grow rice that has a high output
2. find ways to grow more rice 3. circulate his knowledge abroad
4. give money to equip others for their research
Hobbies:1. listening to violin music
2. playing mah-jong 3. swimming 4. reading
Step II Discovering useful words and expressions
1.hunger n.饥饿；欲望 v.t&vi.(使)饥饿；渴求;渴望得到→hungry adj.饥饿的 2.disturbing adj.（事物等）引起烦恼的;令人不安的→ disturb vt. 打扰；打乱
3. equip vt.&vi 配备；装备→equipment n.设备；装备 4.export vt.&vi.输出;出口→（反义词）import 输入;进口 5.occupation n.工作；职业；占领→occupy vt.占领;占用 6.circulate vt.&vi.循环,流传→circulation n.循环；流传
7.confuse vt.使迷惑；使为难→ confusing_adj.令人迷惑的→confused adj.迷惑的；为难的
8.produce vt.生产；制造→producer n．生产者；制片人→production_ n.生产;制造
1.使……摆脱或除去 rid…of 2.对……感到满意 be satisfied with 3.幸亏;由于;因为 thanks to 4.宁愿;宁可 would rather 5.逐渐增强;建立;开发 build up
6.导致;造成(后果) result in 7.集中(注意力、精力等)于 focus on
8.使……免受(影响、伤害等);使……不含(有害物) keep…free from/of 9.为......抵抗……而斗争（努力） fight against 10.有关系，有影响 make a difference TASK 1 用本单元词汇和句式完成下列写作任务
袁隆平是一位农业方面的科学家，使十亿多人免于饥饿。他很小的时候就宁愿待在自家的农场里研究庄稼。那时候，饥饿是一件令人烦恼的事情。因此，他决定使人摆脱饥饿。为与饥饿作斗争，他帮助穷人提高农作物产量。由于他的努力，墨西哥的小麦产量提高了并且出口到别的国家。结果，他因在与饥饿作斗争中所做出的贡献而获得了诺贝尔和平奖。
【参考范文】
Yuan Longping was an agricultural scientist who kept as many as one billion people free from hunger. He would rather stay on his family farm studying crops when he was very young，and at that time，hunger was a disturbing problem. Therefore he was determined to rid people of hunger. He helped poor people
improve the output of their crops to struggle against hunger. Thanks to his effort，Mexico increased its wheat output and exported wheat to other countries. As a result，he won the Nobel Peace Prize for his contributions in struggling against hunger.
Step III: Discovering useful structures
i)观察下列句子，找出每个句子的主语和谓语动词，对比并尝试找出变化规律。
1. Wishing for things, however, costs noting.
2. Since then, finding ways to grow more rice has been his life goal. 3.Doing morning exercise is important. 4.Learning English needs practice. 5.My sister’s being ill made me worried. 6.Her coming to help encouraged all of us. 7.It is no use crying over spilt milk.
8.There is no point persuading him any longer.He won't chang his mind. 自我归纳： v-ing As the Subject (作主语)
1.动词-ing形式作主语,通常位于句_首_,谓语动词用_单_数形式,其复合结构的构成方式为:名词所有格/形容词性物主代词+V-ing ,其中形容词性物主代词/名词所有格是V-ing形式的_逻辑主语。
2.用_it作_形式主语, 真正的_主____语（整个动词-ing形式短语）位于句__末___。
3.在___there is no... 结构中做主语。 常用it 做形式作主语的句型有：
It is a waste of time/money doing sth 做……是浪费时间/金钱的 It is no good/use /fun doing sth ……没好处/用处/意思 It is worthwhile /useless doing sth ……是值得的/无用的 在There is no......结构中，通常用V-ing形式做主语。常见句型有： There is no sense doing 做……没有道理/ There is no point doing 干……无意义 There is no pleasure doing 做......没有乐趣注意: There is no need to do sth 干……没必要,在此句式中to do不可换为doing.
eg: There is no need to tell her. 没有必要告诉她。
ii)观察下列句子，找出每个句子中的v-ing形式，并说出它所作的成分。
1. Have you finished cleaning the classroom?
2. He enjoys listening to violin music, swimming and reading.
3. As a young man, he saw the great need for increasing the rice output. 4.I have never dreamed of visiting that place. 自我归纳： v-ing As the Object 作宾语 动词-ing短语作动词的宾语 动词-ing短语作介词的宾语
接动词-ing作宾语的动词(短语)，记忆歌谣： 建议考虑坚持练，允许想象弃冒险； Suggest，advise, consider，insist on , practise Permit , allow, imagine , give up, risk 阻止抵抗否逃脱，不禁介意保持完； prevent, resist, deny, escape can’t help, mind, keep, finish 耽误推迟求原谅，承认错过欣喜欢 Delay, put off, require, forgive , excuse Admit, miss, appreciate, enjoy
Compare the sentences and translate them into Chinese. I forgot writing to you. I forgot to write to you.
I remember locking the door before I went out.
I remember to lock the door before I go out .Don't worry. Task 2:Write down the meaning in Chinese.
go on doing 继续做原来做的事 mean doing 意味着要做
go on to do 接着做另一件事 mean to do 想要做某事 stop doing 停止做某事 try doing 试着做某事 stop to do开始做某 try to do 努力做某事 be used to doing 习惯于做某事 can't help doing 情不自禁做某事 be used to do 被用来做某事 can't help to do 不能帮助做 Task 3: Fill in the blank.
1) ___Learning new words_______________ is very important for me． 学习新单词对我来说非常重要。 2) Talking__________ is easier than doing. 说比做容易。
3) It is useless trying to argue with Shylock 和夏洛克争辩是没有什么用的。 4 This book _is worth reading_again.(worth) 这本书值得再读一次。
5） We must try to _avoid making the same mistakes (avoid) 我们必须设法避免犯同样的错误。 6)Playing (play)with fire is dangerous.
7)The doctor advised __staying ( stay ) longer in hospital. 8)He didn’t feel like __working ( work ), so he suggested _spending ( spend ) the day in the garden.
9)Everybody was made unhappy because he insisted on _giving__(give) up that plan.
10) It is not worthwhile seeing (see) the movie for the second time. 11）We succeeded in finishing (finish) our paper ahead of time.
12） Tom could not help __jumping_(jump) with joy on hearing the good news. 13)Dr. Yuan searched for a way to increase rice harvests without _expanding____ (expand) the area of the fields. Step VI:Homework
1. Finish the exercises on page 13. 2.Prepare for the next passage
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