<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">There is a recent monograph of the Society for Child Development, Vol. 72 , 2007 by Michelle M. Chouinard, entitled "Children's Questions: A Mechanism for Cognitive Development that may be of help to you. P. Menyuk.<BR><DIV><DIV>On Jul 22, 2007, at 6:00 PM, <<A href="mailto:info-childes@mail.talkbank.org">info-childes@mail.talkbank.org</A>> wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="4" style="font: 14.0px Helvetica"><A href="mailto:zhang.li1231@gmail.com">zhang.li1231@gmail.com</A></FONT></P> </BLOCKQUOTE></DIV><BR></BODY></HTML>