小学英语句型转换之肯定句变否定句
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be动词包括：am,is,are,was,were.
常见的情态动词有：can,could,would,will,may等等。
例句：I am a student. → I am not a student.
He is a boy. → He is not/isn't a boy.
I can speak English. → I can not/can't speak English.
2.The girl can sing and dance.
The girl can't sing or dance.
肯定句变否定句
相关练习：
1.Mike would like some chicken.→ Mike_w_o_ul_d_n'_t like __a_n_y__ chicken.
2.He often goes to bed at ten.→ He often __do_e_s_n_'t __go___ to bed at ten.
携手共进，齐创精品工程
Thank You
世ห้องสมุดไป่ตู้触手可及
3.Mary is a teacher,too.→
Mary _i_s_n_'t__ a teacher ,_e_i_th_e_r__. 4.They went to Shanghai yesterday.→
They _d_id_n_'_t __g_o___to Shanghai yesterday.
在一般过去时中，一律用didn't来否定。
例句：I like apples.→ I don't like apples. He likes apples→. He doesn't like apples.
She worked last night. →
She didn't work last night.
肯定句变否定句的方法
2.含“实意动词”型，转换否定句时，记住五个字 “一加一还原”的原则。“一加”即在实意动词前加 助动词的否定don't,doesn't或didn't。“一还原” 即把句中的实意动词变回原形。
注意：在一般现在时中，当主语是第一、二人称或复数时，加 don't来否定；当主语是第三人称或单数时，加doesn't来否定；
小学英语句型转换之肯定句 变否定句
一、概念：什么是肯定句和否定句？
｛ 陈述句
肯定形式→肯定句 否定形式→否定句
陈述句：说明一件事情、一个想法，提出一个 观点或表达自己心情的句子。特点是：句末都 是句号，用降调读！
肯定句变否定句的方法
1.含“be动词和情态动词”型，直接在be动词或情态 动词后加not,其它照抄不变。
肯定句变否定句的方法
注意缩写：
is not = isn't, are not = aren't , was not = wasn't, were not = weren't, am not没有缩写， 但是I am = I'm can not = can't, would not = wouldn't could not = couldn't, will not = won't
肯定句变否定句的方法
要注意的特殊情况：
遇到some 变 any; 遇到too/also变either; 遇到and 变 or; 遇到always 变 never。
例句:1.There are some boys in the classroom. There aren't any boys in the classroom.
常见的情态动词有：can,could,would,will,may等等。
例句：I am a student. → I am not a student.
He is a boy. → He is not/isn't a boy.
I can speak English. → I can not/can't speak English.
2.The girl can sing and dance.
The girl can't sing or dance.
肯定句变否定句
相关练习：
1.Mike would like some chicken.→ Mike_w_o_ul_d_n'_t like __a_n_y__ chicken.
2.He often goes to bed at ten.→ He often __do_e_s_n_'t __go___ to bed at ten.
携手共进，齐创精品工程
Thank You
世ห้องสมุดไป่ตู้触手可及
3.Mary is a teacher,too.→
Mary _i_s_n_'t__ a teacher ,_e_i_th_e_r__. 4.They went to Shanghai yesterday.→
They _d_id_n_'_t __g_o___to Shanghai yesterday.
在一般过去时中，一律用didn't来否定。
例句：I like apples.→ I don't like apples. He likes apples→. He doesn't like apples.
She worked last night. →
She didn't work last night.
肯定句变否定句的方法
2.含“实意动词”型，转换否定句时，记住五个字 “一加一还原”的原则。“一加”即在实意动词前加 助动词的否定don't,doesn't或didn't。“一还原” 即把句中的实意动词变回原形。
注意：在一般现在时中，当主语是第一、二人称或复数时，加 don't来否定；当主语是第三人称或单数时，加doesn't来否定；
小学英语句型转换之肯定句 变否定句
一、概念：什么是肯定句和否定句？
｛ 陈述句
肯定形式→肯定句 否定形式→否定句
陈述句：说明一件事情、一个想法，提出一个 观点或表达自己心情的句子。特点是：句末都 是句号，用降调读！
肯定句变否定句的方法
1.含“be动词和情态动词”型，直接在be动词或情态 动词后加not,其它照抄不变。
肯定句变否定句的方法
注意缩写：
is not = isn't, are not = aren't , was not = wasn't, were not = weren't, am not没有缩写， 但是I am = I'm can not = can't, would not = wouldn't could not = couldn't, will not = won't
肯定句变否定句的方法
要注意的特殊情况：
遇到some 变 any; 遇到too/also变either; 遇到and 变 or; 遇到always 变 never。
例句:1.There are some boys in the classroom. There aren't any boys in the classroom.