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(一)、通过问候,师生对话组织教学,呈现复习目标
(二)、通过全班学生齐读有关there be 句型的句子,引人本节课的学习内容,复习there be 句型。
(三)、呈现幻灯片,学生根据图片写句子和复习there be 句型的否定句和一般疑问句
There be句型的一般疑问句
There is a radio on the desk.
Is there a radio on the desk ?
Yes, there is. No, there isn't.
There are some shoes under the bed
Are there any shoes under the bed?
Yes, there are.
No, there aren't.
There be 句型的否定形式
1. There is a knife in the kitchen.
否定:There is not a knife in the kitchen
2. There are five apples on the tree.
否定:There are not five apples on the tree
3. There is some ink in the bottle.
否定:There is not any ink in the bottle
(四)there be 句型的否定式的构成和含有 be 动词的其他句型一样,
在 be 后加上 not 或 no 即可,注意 not 和 no 的不同:not 是副词,no 为形容词,“not a/an/any+n.”相当于“no+n.”。如:
1、There are some pictures on the wall.墙上有一些画。
→There aren't any pictures on the wall. = There are no pictures on the wall.墙上没有画。
2、There is a bike behind the tree.树后有一辆自行车。
→ There isn't a bike behind the tree.=There is no bike behind the tree.树后没有自行车。
(五)变为特殊疑问句
there be 句型的特殊疑问句形式有以下三种变化
对主语提问:当主语是人时,用“Who's +介词短语?”;当主语是物时,用“What's+介词短语?”。无论原句的主语是单数还是复数,对之提问时一般都用 be 动词的单数形式(回答时却要根据实际情况来决定)。
对地点状语提问:提问地点当然用“Where is/are+主语?”
There is a computer on the desk.桌上有一台电脑
→ Where is the computer?电脑在哪里?