Language points
1. It can be a challenge,but the new language can givepeople more opportunities.
(1)challenge名词，意为“挑战”。
例:This exam is a real challenge.这次考试是一次真正的挑战。
(2)opportunity名词，意为“机会”。常用短语:
have/take the opportunity to do/of doing sth.有/抓住机会做某事。例:Everyone should take the opportunityto learn more new knowledge.每个人都应该抓住机会学习更多新知识。

2.With a good knowledge of a new language, you canenjoy a better life.
knowledge是不可数名词，但可用作单数，如a(good) knowledge of（非常）了解;（丰富的)……的知识。
例:Knowledge is power.知识就是力量。
Mr. Brown is very knowledgeable.布朗先生知识非常渊博。

3.You can communicate with different people and learn new things.
communicate作不及物动词,意为“交流”。其名词形式为communication(交流,通讯)。常用短语:
communicate with sb.与某人交流。例: You hadbetter communicate with your parents often.你最好经常和你的父母进行交流。