Have的用法：
一、Have的意思为“有”，其单数三人称形式为has. 二、句型转换
1、has：肯定句：He has a big dog.
否定句：He hasn't(has not) a big dog.
一般疑问句：Does he have a big dog?(前面用了does后面就用have的原形） Yes,he does./No,he doesn't.
2、have:肯定句：They have a big dog.(have用于除第三人称单数之外的其他情况） 否定句：They haven't(have not) a big dog.
一般疑问句：Do they have a big dog? Yes,they do./No,they don't. 总结：
A、在只含有have的句子中，变否定句在have前加don’t，其余不变。???? 变疑问句在句首加Do，其余不变。 变疑问句在句首加Does, has变成have。??
B、在只含有has的句子中，变否定句在has前加doesn’t,has变成have。????
have作为实义动词的时候，有这些意思：??
1. 有,拥有 ?? This coat has no pockets.??这件衣服没有口袋。??
2. 吃;喝;吸(烟)?? They had their lunch in a cafeteria.??他们在一家自助餐厅吃了午饭。?? Have a cup of coffee, please.??请喝杯咖啡。 3. 必须,不得不[+to-v]?? I have to go right now.??我马上得走。
4. 上课 We have art and history today. 我们今天上艺术课和历史课。
Have/has got的用法：
一、定义
Have/Has got句型:它表示某物归某人所有，是一种所属关系,主语为人，只有“拥有”的意思。??转换：have got=have has got=has 二、Have/Has got句型的转换
A、否定句：在Have或Has后加not, 缩写为Haven’t或Hasn’t.如：
I have got three sisters. → I haven't got three sisters.
He has got a bike. → He hasn't got a bike.
B、一般疑问句：把Have或Has提前到句首
I have got three sisters. → Have you got three sisters? Yes,I have./No,I haven't. He has got a bike. → Has he got a bike? Yes, he has./No, he hasn't.
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There be 句型 一、定义
There be句型是一常见的表示“存在”的句型。该结构表示某地某处客观存在某物，是一种倒装语序，其真正的主语在there be 之后。 二、结构
There be + sth + 地点状语
There is a flower in the bottle. 瓶里有一朵花。
There is some money in the purse. 钱包里有些钱。
三、There be 句型中be动词的确定
1. there be 结构中的谓语动词be在人称和数上应与其后的主语保持一致。主语是不可数名词或单数可数名词时用is,是复数时用are。如: There is a flower in the bottle. 瓶里有一朵花。 There is some money in the purse. 钱包里有些钱。
There are four apples on the desk.桌子上有四个苹果。
2. 若句子中有几个并列的主语时,be的形式要与离其最近的一个主语在人称和数上保持一致。（就近原则）如:
There is a boy, a girl and two women in the house. 房子里有一个男孩,一个女孩和两个妇女。 There are ten students and a teacher in the office. 办公室里有十个学生和一个教师。 3. 另外,在陈述句中为了强调地点,也可将介词短语提置句首。如: In the tree there are five birds. 树上有五只鸟。
四、There be 结构的句型转换
1、否定句
there be的否定式通常在be后加not构成(在口语中be时常与not缩写在一起)。如果句中有some,一般要变成any。如:
There are some children in the picture. →There aren't any children in the picture.
2、一般疑问句及其答语
把be提到there前,首字母大写,句末用问号即可。其肯定答语是Yes, there is / are;否定答语为No, there isn't / aren't。如: —Are there two cats in the tree? —Yes, there are. (No, there aren't.)
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