听课
课程与PC端同步更新，充分利用零碎时间。做题
海量精选试题，想练就练，瞬间提分。答疑
海量精选试题，想练就练，瞬间提分。直播
名师大咖面对面，有问有大收获多。阅读理解(共l5小题;每题3分，共45分)
阅读下面短文，然后根据短文的内容从每小题的四个选项中选出最佳的一项，并把它前面的大写字母填在横线上。
A
Forty—thousand of the world’ s young children die every day.Many of these deaths can be prevented.In fact，experts say，techniques now exist to save the lives of half of these children.The techniques are medically effective(有效的)，simple to use and low cost.The biggest task has been to inform parents about these life-saving techniques.
Diarrhea(腹泻)is the main cause of death among children in developing countries.Diarrhea results when the body tries to clear itself of harmful bacteria(细菌).The body does this by getting our liquids，sometimes uncontrollably.If too much water，sugar and salt ale lost in this way，the body cannot work normally.The child may die.
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