Part IV Translation:将下面的汉语句子翻译成正确的英文句子，注意：单词拼写、大小写、标点符号错误均会被酌情扣分。56.学生们在物理老师的帮助下进行了各种科学实验。Students ________ a variety of science experiments with the help of their Physics teacher.57.你们没有必要牺牲环保来促进经济增长。You don’t have to sacrifice environmental protection to ________ economic growth.58.你是如何激励人们努力而高效地工作的？How do you ________ people to work hard and efficiently?59.通过读书，他不仅开阔了视野，而且学会了不断完善自己的人格。Through reading, not only has he ________ his horizon, he has also learned to keep improving his character.60.在人生的不同阶段，我们会遇到不同的问题。At different stages of our life, we ________ different kinds of problems.