A、By writing them down. B、By pointing at them. C、By drawing pictures. D、By explaining the origin of words. B最后一部分给出了成年人该如何教孩子识别文

Teachers and parents normally call attention to the pictures when they read storybooks to preschool children.(23)But a study published in 2011 suggests that calling attention to the words and letters on the page may lead to better readers.
    The two-year study compared children who were read to this way in class with children who were not. Those whose teachers most often discussed the print showed clearly higher skills in reading, spelling and understanding. These results were found one year and even two years later.
    Shayne Piasta, an assistant professor of teaching and learning at Ohio State University, was an author of the study.(24)She says most preschool teachers would find this method manageable and would need only a small change in the way they teach. They already read storybooks in class. The only difference would be increased attention to the printed text. Ms. Piasta says if you get children to pay attention to letters and words, it makes sense that they will do better at word recognition and spelling. But she says research suggests that very few parents and teachers do this in a systematic way.
    There are different ways that adults can talk to children about print.(25)They can point to a letter and discuss it, and even trace the shape with a finger. They can point out a word: " This is ’ dog. ’ " They can discuss the meaning of the print or how the words tell the story. And they can talk about the organization of the print—for instance, showing how words are written left to right in English.
23. What do the researchers of the study suggest parents and teachers do when reading storybooks?
24. What makes Piasta think that preschool teachers can manage to adjust to the method easily?
25. How can adults teach children about written works?