重点讲解：
1. come up
即将发生；即将到来；
eg. Plan your activities so that you are rested and refreshed when something important is coming up.
做好日常规划，这样一旦发生大事，才能够从容不迫。
eg. We do have elections coming up.
我们的确将要进行选举。
eg. That question of culture seems to come up again and again.
这种文化上的问题似乎会反复出现。
2. base on
以…为基础；
eg. He based his conclusions on the evidence given by the captured prisoners.
他根据被俘囚犯提供的证据得出了这个结论。
eg. Three of the new products are based on traditional herbal medicines.
有3种新产品是以传统的草药为基础研制的。
eg. One should always base his opinion on facts.
一个人应该始终以事实为依据发表自己的观点。
