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简介:
1- 肯定句 -
肯定句是指用肯定的语气来陈述的句子。如:
I’m a student.
She is a doctor.
He works in a hospital.
There are four fans in our classroom.
家长可以让孩子记住一个简单的特征,肯定句是用表示肯定的意思,即不含有否定词“不”。
2- 否定句 -
和肯定句相反,否定句表示某一否定意思,句中一定有not。如:
I’m not a student.
She is not (isn’t) a doctor.
He does not (doesn’t) work in a hospital.
There are not (aren’t) four fans in our classroom.
否定句的形式有三种可能:
1.be动词(am、is、are、was、were)+not
2.情态动词(can、must、should)+ not
3.助动词(do、does、did) + not