题目

One evening last summer, when I asked my 14- year- old son, Ray，for help with dinner, his response(回答)shocked me. What's a colander(漏勺)? he asked. I could only blame _____ . In the family, nobody else went into the kitchen except me. But that night, as I _____ to him that a colander is the thing with holes in it，I wondered what else I hadn't _____ Ray for.As parents，while we focus on our sons' confidence and character，we perhaps don't always consider that we are _____ raising someone's future roommates，boyfriends， husbands，or fathers. _____ I came up with a plan: I would 内蒙古锡林郭勒草原的东部，又被称作乌珠穆沁草原。乌珠穆沁草原目前是内蒙古保存最为完好的天然草原，牧草非常繁茂，可以看到“天苍苍，野茫茫，风吹草低见牛羊”的景观，乌珠穆沁草原被人们喻为“内蒙古最后的天然草原”。结合下图回答问题。 （1）锡林郭勒草原面临的主要环境问题是什么？分析该问题产生的人为原因。 （2）在a、b两河上建水库是否合理？简述其理由。 （3）简要分析在a、b河上建成水库后对当地生态环境的影响。