读课文《能干的钟点工》，按课文内容填空。

汤姆____地叫起来，”妈妈，快来看哪！咱们家来了个____人。”

请仿写下面的句子，与之构成一组意境接近。表达合理的排比句。（至少写两句）

良知是人生的鸡汤，在你遗落寒冬时，给你雪中送炭的温暖。

世界上流量最大的河流是（　　）

化学用语是学习化学的重要工具，按要求用化学用语填空；

（1）2个氮分子____ ；

（2）2个硫酸根离子____ ，

（3）医疗上用来治疗胃酸过多的一种盐____ ，

（4）常用于改良酸性土壤的一种碱____ ．

    Success never comes easy. How many of you have heard of successful people who haven't made any effort? People often have to overcome failures ____ they can accomplish something great. They usually don't find success from the very beginning.

    Van Gogh sold only one painting during his lifetime, but this didn't stop him from completing over 800 painting. Thomas Edison ____(fire) from his first two jobs for lack of competence. Later, as an inventor, he tried 1,000 times ____ (create) the light bulb, without success. He was confident in ____ (he), and____ (eventual) he did success. When____ (ask), “How did it feel to fail 1,000 times?” Edison replied, “I didn't fail 1,000 times. The light bulb was ____ invention with 1,000 steps.

    These successful people have set good____ (example) to us. They wouldn't have achieved their success if they____ (abandon)their dreams. Believe in yourself and try your best, and success will not be far ____ you.