43．Which of the following is NOT true according to the announcement?

　　A. The children who are interested in the mysteries of killer dinosaurs can attend the Ellen DeGeneres Show on Friday.

　　B. Children can?t attend all the activities with etheir parents.

　　C. Children can choose more than one of the activities.

　　D. Children can borrow some relevant books for the activities.

　　44．If there is an emergency,

　　you should________.

　　　A. call the Help Desk

　　B. contact hld @ wnbl. corg

　　　C. stay in the library and wait

　　D. ring 9263637

　　45．The announcement is mainly intended for________.

　　　A. staff members of the library

　　B. parents of the school children

　　　C. the school children

　　D. volunteers of the activities

　　B

　　If you want to help children develop language and speech skills, UCLA researchers say, listening to what they have to say is just as important as talking to them.

　　The effect of a conversation between a child and an adult is about six times as great as the effect of adult speech input alone, the researchers found. “Adults speaking to children helps language develop, but what matters much more is the interaction，” said the study’ s lead author, Frederick Zimmerman, an associate professor in the School of Public Health at the University of California, Los Angeles. The researchers also found that TV viewing didn’ t have much of an effect — positively or negatively — as long as it wasn’ t displacing conversations between an adult and a child.

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