My Stay in New York

    After graduation from university, I had been unable to secure a permanent job in my small town. So I decided to leave home for New York,____I might have a better chance to find a good job. ____ (earn) some money to pay the daily expenses, I started work in a local café as a waiter. I believe that30．____ I was offered a good position, I would resign at once.

    Over time, the high cost of living became a little burden on my already  ____ (exhaust) shoulder. On the other hand, my search for a respectable job had not met with much success. As I had studied literature at university, I found it quite difficult to secure a suitable job in big companies. Mother had just said that ____ I want to have a better career advancement, I had to find work in the city. Perhaps ____my mother had told me was deeply rooted in my mind. I just did as she had expected.

    Soon I had lived in the city for over six months but I still did not like it. Apparently, I had difficulty____ (adapt) myself to life in the city, let alone finding a job to my delight. After nine months of frustration, I eventually decided to go back to my small town. Not until I returned ____I realize that a quiet town life was the best for me.

A﹣K为初中化学常见的物质，其中A为黑色物质，H是一种建筑材料的主要成分，它们之间的转化关系如图所示．

回答下列问题：

文言文阅读：阅读下文，完成后面问题。
         陈太丘与友期行，期日中，过中不至，太丘舍去，去后乃至。元方时年七岁，门外戏。客问元方：“尊君在不？”答曰：“待君久不至，已去。”友人便怒：“非人哉！与人期行，相委而去。”元方曰：“君与家君期日中。日中不至，则是无信；对子骂父，则是无礼。”友人惭，下车引之，元方入门不顾。

为探究物质对草履虫的刺激是有利还是有害，某中学生物兴趣小组的同学做了以下实验：

（1）取两片载玻片，分别编号1和2．

（2）在每片载玻片上滴加两滴相同的草履虫培养液，用解剖针在1、2号载玻片的两个液滴之间轻轻地画一下．

（3）用显微镜观察培养液中的草履虫．

请回答以下问题：

（1）草履虫是好氧生物，如果要想吸取含草履虫较多的培养液，应该从培养液的____ 层（填“表”或“底”）吸取．

（2）用镊子夹取一点物质，放在2号载玻片右侧的液滴边缘，迅速观察两液滴中草履虫的变化，可能观察到的现象及结论是：（以下三空填“选项”中的字母）

①若左侧液滴中的草履虫都向右侧液滴运动，则该物质对草履虫是____ 刺激．

②若右侧液滴中的草履虫都向左侧液滴运动，则该物质对草履虫是____ 刺激．

③左右两侧液滴中草履虫运动都不明显，则该物质对草履虫是____ 刺激．

（选项      A：有害    B：有利    C：既不有利也不有害  ）

（3）在此实验中，1号载玻片起____ 作用．