重点讲解：
1. be known for 以…闻名的；
Our teacher is known for her fairness in grading pupils.
我们的老师以给学生评分公平著称。
2. start out 起初；开始；
People set out with a lot of ambition andenthusiasm, and start out with a big goal.
人们满载雄心和热情，开始时为自己制定了伟大的目标。
3. thanks to 幸亏；归因于；
Thanks to this report, we are beginning to see some patterns and beginning to get some answers.
多亏这份报告，我们开始看出一些模式并得到一些答案。
4. contribute to (为…)做贡献；
And even corporate aspirations in the rich world lag far behind how much the public expects business to contribute to society.
甚至富裕国家企业的渴望也远远落后于公众对企业社会贡献的期盼。