句子三种结构：
简单句、并列句、复合句
简单句
A. 只包含一个主谓结构Mary opened the door.
B. 两个主语和一个谓语Steve and his friend are coming to dinner.
C. 一个主语和两个谓语Mary opened the door and greeted the guests.
简单句的五种基本句型
(1) 主语+连系动词+表语(S+V+P )
The weather is very cold.
(2) 主语+不及物动词(S+Vi )
He laughed.
(3) 主语+及物动词+宾语(S+V+O )
I like Chinese food.
(4) 主语+及物动词+间接宾语+直接宾语(S+V+IO+DO)
She taught them physics.
(5) 主语+及物动词+宾语+宾语补足语(S+V+O+C)
We must keep the room warm.
请说出下列句子类型。
1.Summer is coming.
2.They won’t let me go.
3.He showed me a new TV set.
4.She knows what to do.
5.The weather is very cold.
并列句(compound sentence):
把两个或几个简单句用并列连词连接起来，则成为一个并列句。
I turned on the TV. I watched it.
I turned on the TV and watched it.
I bought my sister a present. She didn’t like it.
I bought my sister a present, but she didn’t like it.
常用并列连词
• 平行并列连词: and, both…and, not only…but also, neither…nor
• 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
请用合适的并列连词把每组句子合并为一个并列句。
1. He was tired. He went to bed.
2. The child hid behind his mother's skirt. He was afraid of the dog.
3. He made a promise. He didn’t keep it.
4. Mary is opening the door. John is greeting her guests.
复合句:
主句+从句
主句是一个完整的句子,它可以独立存在。
从句是一个不完整的句子,它必须和一个主句连用，不能独立存在.
By the time he arrived, we had already left
在复合句中，主要包含以下类型从句：
1.主语从句 2.宾语从句
3.表语从句 4.同位语从句
5.状语从句 6.定语从句
中学生英文写作中经常
使用的从句有：
1. 宾语从句
2. 状语从句
3. 定语从句
指出下列各从句的类型：
❖ I hope that everything is all right.
❖ She was reading the newspaper when I came in.
❖ She is the girl who sings best of all.
请用括号中所给的词把每组句子连接为一个复合句。
He has found out .She was late.(why)
I still remember the day .I first came to Beijing on that day.(when)
请把每组句子连接为一个含有状语从句复合句。
❖ I’ll give the letter to him .I see him.
(时间状语从句)
❖ He didn’t come yesterday .He was ill.
(原因状语从句)
❖ It is such a big box .Nobody can move it.
(结果状语从句)
❖ We’ll go to the great wall .It’s fine
tomorrow. (条件状语从句)
❖ We should not go there all the time.
The place is quite pleasant.(让步状语从句)
有下划线的词叫从属连词
❖ I’ll give the letter to him when I see him.
❖ He didn’t come yesterday because he was ill.
❖ It is such a big box that nobody can move it.
❖ We’ll go to the great wall if it’s fine tomorrow.
❖ Although the place is quite pleasant, we should not go there all the time.
请用所学知识改正下列病句
❖ My roommate was sleeping, we didn’t want to wake her up.
❖ I went to bed. Because I was tired.
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