改否定句和一般疑问句改否定句:1找2加3变方法1:在be 动词和can后面加not,。some 变any.方法2:在动原前面加dont。 some 变any .方法3:在三单前加doesnt , 三单变原形。some 变any . 改一般疑问句:1找2改3变方法1:把be动词和can提前,some 变 any.方法2:句中有动原,开头加Do , some 变any .方法3:句中有三单,开头加Does , 三单变原形。some 变any .注意:I, we 变 you my,our 变 your .一、 把下列句子改成否定句:1. Nancy is at home .2. We like fruit salad.3. Helen can dance well .4. They have some beautiful dolls.5. He has two fish .二、 把下列句子改成一般疑问句:1. There are some birds in the tree.2. Mike likes monkeys.3. My father can stand on the ice .4. I have a new pencil .5. Yang Ling has a cow .