重点讲解：
1. speed up 加快(…的)速度；
I had already taken steps to speed up a solution to the problem.
我已经采取措施加快解决该问题。
2. consist of 由…组成；由…构成；
The development will consist of 66 dwellings and a number of offices.
新建楼区将由66栋住房和一些办公用房组成。
3. focus on 集中(注意力)；关注；
The talks will focus on economic development of the region.
会谈将着重讨论该地区的经济发展。
4. take part in 参加；参与；
They returned to take part in the season's opening game.
他们回来参加本赛季的开幕赛。