这么好辩的题目还要放上来吗楼主？
1. 论点：Knowing a second language can help quickly adjust to new environment.
English is wide-spread in our world, nearly everybody speaks some English, the universal quality of this language endows it utmost importance. When we have a job, it might not be in a place where the language is our mother tongue, but knowing some English can help adjust to the new work environment and help ease the pressure.
2. 论点：Learning English can help communication with others.
If one wishes to travel, and perhaps to a English-speaking country, then knowing English is an unquestionable quality. One needs English to get around the country and to perform many daily tasks, such as inquiring the whereabouts of washrooms and checking-in at a hotel.
3. 论点：Learning English enhances brain capabilities and explore deeper potential.
it is proven through many studies that knowing several languages enhances the brain's learning capabilities. It not only improves one's logical reasoning skills but also enhances memory and learning capabilities. One can grasp new material quicker than others who don't speak another language.
参考资料：egregia cum laude from pre-school DT