Learning about Language教学设计第二课时

教学设计

一、案例主题

LEARNING ABOUT LANGUAGE 部分学习本单元重点词汇和语法项目。词语学习部分采用给出词义而让学生从课文中找出与之匹配的词，然后用所找的词汇完成第二个练习中的短文，以及用课文中意义相近的词汇替换练习三句中划线部分。通过这三种练习帮助学生理解并能熟练应用课文中所学的词汇。语法部分通过从课文中找同义句引出动词的-ing 形式，教师此时可引导学生找出其他的句子，以启发学生理解-ing形式的句法功能。练习二通过模仿例句，用-ing形式做主语代替动词不定式改写句子。练习三要求学生连接短语造句，让学生学习-ing形式作宾语的用法，并列举后面接动词-ing形式作宾语的动词。练习四则训练学生v-ing形式在实际生活中的应用能力。练习五则设计了一个游戏以丰富学生的想象力。

二、语言学习

StepⅠLanguage points 1. …for whom he has struggled for the past five decades.

struggle

vi.

搏斗, 挣扎, 努力, 拼搏

e.g. They were struggling to get out the burning car.

他们挣扎着从烧着的车里往外爬。

struggle n.

努力, 拼搏

[搭配]

struggle against/with

与……斗争

struggle for sth.

为争取……而奋斗/斗争

struggle to do sth. 努力做某事

1) thanks to 表示“幸亏, 多亏”多用于表达正面意思, 相当于感谢, 在句中作状语和表语。

e.g. Thanks to your help, much trouble was saved.

多亏你的帮助, 减少了许多麻烦。

2) rid … of … 用法

The man rid himself of debt.

[归纳]

would rather意为

___________, 其后接动词原形。

[拓展] would rather ... than ... 意为“宁愿……而不愿……”。如：

Jack would rather buy a bike than a motorbike.

翻译下列句子。

1) 她宁愿死也不愿意投降。

2) 我宁愿你现在回家。

3) 我宁愿你昨天没做那件事情。

4. He therefore gives millions of yuan to equip others for their research in

agriculture.

[考点] therefore adv.

因此；所以；因而，表示因果关系。

5. What do you think would happen if

tomorrow there was suddenly no rice to eat?

[点拨] 本句中使用了插入语do you think。插入语经常插到一个语法结构完整的句子里去，对句子的内容作一些附加说明，有时表示说话者的态度和看法等，它不和句子的成分发生结构上的关联，常置于句首、句中或句末。把插入语去掉之后，句子的结构和语义还是完整的。

[拓展] ①常用于插入语的动词有suppose, know, hope, believe, guess, find, say等。如：

You came by air, I suppose. ②用作插入语的主要有：副词、形容词、介词短语、不定式、动词-ing形式短语和分句。

7. In 1973, he became the first agricultural pioneer in the world to grow rice that has a high output. the first ... to do sth. 第一个做……。动词不定式(to grow rice) 作定语, 修饰the first agricultural pioneer。the first, the last, the second, the only等短语后多用动词不定式作后置定语。

[仿写]

____________________________________________________________

公元950年第一个到达新西兰的旅行者是一个叫库佩的人。

8. Yuan Longping searched for a way to increase rice harvests without expanding the area of the fields.

[分析]

①

本句是一个简单句。

②

Yuan Longping searched for a way to increase rice harvests是句子的主干，“without+动词-ing形式短语”在句中作状语。 9. These increased harvests mean that 22% of the world’s people are fed from just 7% of the farmland in the world.

[分析]

①

本句是一个主从复合句。

②

主句是These increased harvests mean, increased为过去分词作定语, 修饰harvests; that引导的是宾语从句。

③

“分数或百分数+ of +复数可数名词”结构作主语时, 谓语动词用复数形式; “分数或百分数+ of +不可数名词”结构作主语时, 谓语动词用单数形式。从句的主语为22% of the world’s people, 故谓语用are。

10. Using his hybrid rice, farmers are producing harvests twice as large as before.

英语中的倍数表达法共有三种形式:

1) 倍数

+ 形容词/副词的比较级

+ than...

2) 倍数

+ as +形容词/副词的原级

+ as...

3) 倍数

+ the + 名词+ of...

Step Ⅱ

Exercises I. 根据下列各句句意及所给单词的首字母或汉语提示, 写出所缺单词的正确形式。

1. We were all _________ (晒黑的) from a day on the beach. 2. She’s s________ to bring up a family alone.

3. The measures will enable us to increase our o_____ of bicycles soon.

4. He was down with the flu, and ________ (因此) couldn’t come to the party.

5. The d________ problem has been making him hard to sleep every night.

6. In ten years the city’s population e_______ by 12%, which has made the city more

crowded. 7. Our products are ________ (出口) to Southeast Asia to gain more benefits. 8. Blood _________ (循环) in the body until life stops.

Keys: sunburnt, struggling, output, therefore, disturbing, expanded, exported, circulates II. 根据括号内的提示翻译下列句子。

1. 我倒宁愿他告诉了我这件事。(would rather) 2. 我们必须除去花园的杂草。(rid ... of) 3. 我们必须与各种困难作斗争。(struggle against) 4. 卧室是厨房的两倍大。(as ... as) Step III Homework Review the language points and difficult sentences we have learned this

class.