先说图意，再列式计算。

   Imagine one day the water taps (水龙头) in your house stop running. You have to pay a lot of money to buy water from shops. And still there isn't enough water for everyone. Your mother has to save the family's shower water to use for washing clothes. Would you be able to stand that kind of life?
   Probably not. But that is what kids in Yemen (也门) are experiencing (经历). According to a report, the capital, Sana, will run out of drinking water as early as 2025.
   Because of the water shortage (短缺), the Yemen government often cuts the water supply (供应). Hannan, an 18-year-girl, tells the Teens, “In a good week we'll have a water supply all week. But then the next week there will be water only for a day or two.”
   Hannan says only rich people have enough water to use. They can buy water from the shops or from the water trucks. Private (私人的) companies own the trucks, They travel around the city every day to sell water-- at very high prices.
   “A lot of people can't pay for it,” she says.
   The government is thinking of making use of seawater. But it will cost a lot and it may not happen soon enough to help the people of Yemen.

在如图所示的四种现象中，属于光的折射现象的是（　　）

依次填入句中横线上的词，最恰当的一项是：（    ）

①这项工程进展顺利，____________月中旬，已经完成年施工计划的80%。

②端午节，民间有在身上挂香荷包的习俗，这样可以____________疾病。

③老板娘把他们领到二号桌，____________地将桌子上那块“预约席”的牌子藏了起来。

④她一连几次挑起话头，想和女儿谈谈，可是低头玩着手机的女儿____________却很冷淡。

阅读下面的文言文，完成题
（甲）当余之从师也，负箧曳屣行深山巨谷中。穷冬烈风，大雪深数尺，足肤皲裂而不知。至舍，四支僵劲不能动，媵人持汤沃灌，以衾拥覆，久而乃和。寓逆旅，主人日再食，无鲜肥滋味之享。同舍生皆被绮绣，戴朱缨宝饰之帽，腰白玉之环，左佩刀，右备容臭，烨然若神人；余则缊袍敝衣处其间，略无慕艳意。以中有足乐者，不知口体之奉不若人也。盖余之勤且艰若此。
（乙）邴原少孤，数岁时，过书舍而泣。师曰：“童子何泣？”原曰：“孤者易伤，贫者易感。夫书者，凡得学者，有亲也。一则羡其不孤，二则羡其得学，中心感伤，故泣耳。”师恻然曰：“欲书可耳！”原曰：“无钱资。”师曰：“童子苟有志，吾徒相教，不求资也。”于是遂就书。一冬之间，诵《孝经》《论语》。