连接词的功能=连接单字、片语或子句

例:¹灿烂的!舞蹈演员表演劈叉。

Splendid! The dancers played and did the splits.

²你用右手写字还是用左手写字?

Do you write with your right hand or your left hand?

³我有困难时总是依靠他。

I always rely on him when I am in trouble.

连接词的种类

对等连接词=连接同词性的单字，片语，子句。

①and（和，并且，那么）

例:¹当个大学生和在大学求学是两回事。

being a college student and studing at college are two different things.

²我们可以呼吸新鲜的空气和享受美丽的风景

We can have fresh air and enjoy beautiful scenery.

³直直走，那么你会看见那家餐馆在你右手边

go straight, and you will see the restaurant on your right.

②but（但是）

例:¹那小女孩跌倒了，但没有哭。

The little girl fell down but （she） didn't cry.

²我爸妈答应让我跟你出去，但是他们要求我必须在12点前回家。

My parents agree to let me go on out with you,but they ask me to come before 12:00.

③or（或者，否则）

例:¹你较喜欢哪一种，咖啡或茶?

What would you prefer,coffee or tea?

²你可将碳转变成钻石或是沙子转变成电脑芯片。

you can turn coal into diamonds or （you can turn）sand into compurter chips.

³书展一定要办，否则这些书无法一周内卖完

The （book）fair must be held,or the books won't be sold out in a week.

④so（所以）只能连接两子句

例:¹有些人不曾想过未来，所以他们东西只用一次就丢掉。

Some people never think of the further,so they only use things once and throw them away.

²我们共享这个世界，所以我们每个人都必须恪守本分。

We share this world,so each of us has to do ourport.