Learning about Language第一课时导学案

UNIT 2 WORKING THE LANG LEARNING ABOUT LANGUAGE 教学设计

龙门中学

许建平

LEARNING ABOUT LANGUAGE 学习本单元重点词汇和语法项目。词语学习部分采用。通过详细解说帮助学生理解并能熟练应用课文中所学的词汇。教师可引导学生分析句子，以启发学生理解课文句子的结构以及重点词汇的意义。通过短语的记忆以及强化，让学生掌握本单元的重点词汇。例如：

1.. He would much rather keep time for his hobbies. would rather ... than ... 意为“宁愿……而不愿……”。如：

Jack would rather buy a bike than a motorbike.

2. What do you think would happen if

tomorrow there was suddenly no rice to eat?

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。如：

Two middle-aged passengers fell into the sea. Unfortunately, neither of them could swim. 3. Although he is one of China’s most famous scientists, Yuan

Longping considers himself a farmer, for he works the land to do his research.

[分析]

①

本句是一个主从复合句。

②

主句是Yuan Longping considers himself a farmer; Although 引导让步

状语从句; for在此是连词; 表示原因。

4. 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。

5. 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。

6. 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...

e.g. This building is five times higher than that one. ________________________________________

This building is five times as high as that one. _______________________________________

This building is five times the height of that one.

这座楼是那座楼的五倍高。