Grammar优秀教案案例

Module 2

Developing and Developed Countries

Grammar 连接词（Link words)连词可分为并列连词和从属连词。

并列连词：



表转折或对比；

but, while, yet, however

注意：

but 不与

although连用，但yet可以。

He observes keenly, but says little.



表选择：

or, otherwise等。如：

Seize the chance, or you will regret it.



表联合：and, when等。如：

We should keep the room clean and tidy. 

表因果：for, so等。如：

It’s morning, for the birds are singing.



其他平行或对称结构：

not …but …,

both … and …,

either … or …,

neither … nor …,

not only … but also …, would rather … than …等。

Not only was everything in his classroom taken away , but also in his bedroom.

从属连词: 

表时间：when, while, since, as soon as等。如：

I will get in touch you as soon as I arrived. 

表原因：as, because, since等。如：

I know it’s

true, because I read about it in the official report.



表地点：where, wherever。如：

Wherever you go, keep in touch with me.



He will not come unless he is invited. 

表目的：so that, in order that, in case。如：

He took表条件：if, unless, as long as。如：

a taxi to the station in order that he should not miss the train. 

表结果：so, so that。如：



It was very cold so that the water in the bowl froze.



表让步：though / although。如：

Although / Though I live near the sea, I’m not a good swimmer.



表方式：as, as if / though。如：

They talked as if they had been friends for years. 

表比较：as … as, than。如：

T his river is ten times as long as that one Look at the linking words but and however in these sentences. They are used to connect sentences or parts of sentences

1.

The report shows that we are making progress but we need to make greater efforts. 2.

In the last ten years in China,

150 million people moved out of poverty. However, the challenges are still great.

3.

More than 1 billion people in developing countries do not drink safe water. However, in other parts of the word, e.g. Eastern Europe, water is now mostly safe to drink. Now answer the questions: 1.

Does however mean the same as but? Yes 2. Which link word begins a sentence? However 3. Which link words can join two parts of a sentence? But 4. Which link word is followed by a comma(逗号)? However 连词：but, however, although, while but 1. 连接两个并列分句

Honey is sweet, but the bee stings. I ought to have helped her, but I ever could.

2. 连接两个并列成分

They see the trees but not the forest.

He no longer felt disappointed, but happy and hopeful. 3.后接状语

He tried to save it, but in vain. He glanced about, but seeing only the empty room. 2. 连接两个并列成分

They see the trees but not the forest.

He no longer felt disappointed, but happy and hopeful. 3.后接状语

He tried to save it, but in vain. He glanced about, but seeing only the empty room. however 1. 多插在句子中间

(1) His first response was to say no.

Later, however, he changed his mind. (2) The production is low this month. However, there will be an increase next month.

2.有时也放在句首或句尾

I’ll offer it to Tom. However, he may not want it.

You know all this as well as I do, however. although 常用来引导让步状语从句, 与though同义

Although it was barely four o’clock, the lights were already on.

He said they were married, although I’m sure they aren’t.

He’s very lovable although not at all tidy.

.while常用来引导状语从句，表示对比、让步、时间等。

Some countries are rich, while others are extremely poor. While Tom’s very good at science, his brother is absolutely hopeless.

While they are my neighbors, I don’t know them well.

Strike while the iron is hot. (1) but和however两者都可以翻译为“但是、然而”，但是两者的用法不同。However既可以放在句首也可以放在句中，并且后面一般要有逗号，but常用于句中，不加逗号。

(2) while与but两者都有“然而、而”的意思。while强调两着的对比，而but强调转折。

(3) while与although都用来表示两者对比，但

while是并列连词，引导并列句。although为

从属连词，引导让步状语从句。

Homework 1. Finish the exercises on Page 73, Students Book. 2. Get ready for the next period of class.