1. 你该睡觉了.　　　　　　　　　　　　 2. 收到你的来信已有一月之久.

3. It (will/won't) be long before +句子/It is(isn’t) long before + 句子/It was(wasn’t) long before +句子.　 很久/不久...才…

2. It is/has been +时间+since +句子.　 自从做...到现在有多长时间来了.

1. It is time that +句子。　 该是(某人)做...的时候了.

3. I didn’t meet Jane. I didn’t meet her husband.

I didn’t meet either Jane or her husband. 　/ 　I met neither Jane nor her husband.

两个或两个以上限定动词也可合并为一个简单句。

We sang all night. We danced all night. / We sang and danced all night.

需把几个意思连接在一起时，可用分号或把两个或几个简单句用并列连词连接起来，这种结构即构成一个并列句。

用分号：　 We fished all day; we didn’t catch a thing.

用分号，后跟一个连接副词：　 We fished all day; however, we didn’t catch a thing.

用并列连词(如and、but、so、yet等)　 We fished all day, but (we) didn’t catch a thing.

常用并列连词:

平行并列连词:　 and, both…and, not only…but also,　 neither…nor, and then

转折并列连词：but, however, while, yet

因果并列连词:　 for, so

选择并列连词: or, either…or, neither… nor

并列句的词序：并列句基本上保留了简单句的词序。

主语　 谓语　　 宾语　 连词　 主语　 动词　 表语

Jimmy fell off　 his bike but　　 (he)　 wasn’t　 hurt.

五种简单句型可用并列连词连接起来组成并列句。

主　　 谓　　 状(方式) 连　　 主　　 谓　　　 表

Frank worked hard　　　　 and　 (he ) became an architect.

主　　 谓　　 宾　 连　 主　　　 　谓　　　 地点

I　　 ’ve got a cold,　 so　 I　　 ’m going　 to bed.

主　 谓　 宾　 宾补　 连　 主　　　　 谓　　　 宾

They made him chairman, but (they) didn’t increase his salary.

2. It was cold. It was wet. 　/ 　It was cold and wet.

1. I met Jane. I met her husband. / I met Jane and her husband ./ I met both Jane and her husband.

4. The boss is not flying to York. His secretary isn’t flying to York.

Neither the boss nor his secretary is flying to York.

两个简单句的宾语可由and、both…and等连词连接组成一个简单句。

3. The boss may be flying to Berlin. His secretary may be flying to Berlin.

Either the boss or his secretary is flying to Berlin.

2. The boss is flying to Rome. His secretary is not flying to Rome.

The boss but not his secretary is flying to Rome.