马略卡岛是世界著名的旅游避暑胜地，最高处马约尔峰海拔不到2000米。岛上常住人口约85万，大约一半居住在首府帕尔马，2009年接待游客多达2120万。马略卡岛年降水量约400mm，岛上地下岩层具有很强的渗透性，岩层孔隙储水丰富。近年来，马略卡岛受到水资源日渐短缺的威胁。据此完成以下问题。

小明、小红和小亮在做“探究影响导体的电阻大小因素”实验时，做出了如下猜想．

猜想一：导体的电阻可能与导体的长度有关．

猜想二：导体的电阻可能与导体的横截面积有关．

猜想三：导体的电阻可能与导体的材料有关．

实验室提供了4根电阻丝，其规格、材料如表所示

阅读下面短文，根据短文内容，从方框中选出恰当的单词，将其正确形式填入短文空白处。(每词限用一次)

what, pull, another, with, some, find,

still, decide, success, teacher

    A professor(教授) told his students to go into the city slums(贫民窟) to study the life of 200 boys. He asked them to write reports about each boy's life and future. One of the students wrote, “They don't have ____ hope．”

    Twenty-five years later，____ professor read about the earlier study. He told his students to find out ____ had happened to the boys. They tried very hard and ____ that 176 of the boys had become successful as doctors, teachers and scientists.

    The professor was very surprised and ____ to study it further．Luckily, all of them were living near the place and he was able to ask each one, “What made you successful? ” Each one answered, “It was a ____ . ”

    The teacher was ____ living there, so the professor found her and asked the old woman what she had done to ____ those boys out of the slums, and change them into  ____ people.

    The teacher's eyes began to shine and said ____ a sweet smile, “It's really very easy. I love those boys. ”