5、eyesandnoears. C.列举成分在否定词前。如:DadandMumcannotwritetheirnames. D.and构成的固定词组。如:Hedidn'tworkdayandnight. E.and连接两个表示先后发生的两个动作。如:Don'tdrinkanddrive.别酒后驾驶。四、肯定句变否定句时,既要否定谓语动词,又要变换句中的部分连词。如:Hecanreadandwrite.Hecan’treadorwrite. 五、、用于否定句中连结并列成分,表示“和,与”之意。例如: There isn't any air
6、or water on the moon.月球上既没有空气也没有水。 The baby is too young. He can't speak or walk.那婴儿太小,他不会说话,也不会走路。 He hasn't got any brothers or sisters.他没有兄弟和姐妹。 肯定句中并列连词应用and,在把含有and的肯定句改为否定句时,莫忘把连词and改为or。例如: The students sang and danced in the park yesterday.→The students didn't sing or d