重点讲解：
1. catch up with
赶上；追上；跟上；
eg. We must exert ourselves to catch up with them, or it would be too late.
我们要急起直追，否则就太晚了@%tWK3|!l8);wr0LCI-。
eg. Old age and infirmity had begun to catch up with him.
他开始显出年老体衰的样子了tF.--+0nl0,oHd7=(-I。
2. consist of
由…组成；由…构成；
eg. Its culture is consist of very diverse communities and in most recent history British has been a major influence.
其文化是由非常多样化的社会团体组成，在近代的历史中英国起着主要影响5I5_N(q,|AJOtLoph^6M。
eg. Substances consist of small particles called molecules.
物质是由叫做分子的微粒组成的Yd2te3!A#Z&Ej!。
3. put together
装配；组装；拼合；组合；
eg. This toy can be taken apart and put together with ease.
这个玩具可容易地拆开再装起来#IPuQnXRT0*74,。
eg. Probably this literature was first put together in Babylon.
很可能这部文献最早是在巴比伦汇总起来的@R%SUQ.3,duPtX7R~。
4. blend in
融入；与…融为一体；与…协调；
eg. The toad had changed its colour to blend in with its new environment.
蟾蜍已经变色，和新的环境融为一体|JBT_c8f%&(@。
eg. You can blend in so that the voice becomes just another instrument in the band.
你可以把声音协调一下，让它成为乐队的另一种乐器)2YvR7mdV4)lH!x。
5. try out
试验；测验；
eg. She knew I wanted to try the boat out at the weekend.
她知道我周末想开船出去试一下020N]7WKrY!iZ。
eg. London Transport hopes to try out the system in September.
伦敦交通系统有望在 9 月份对该系统进行试运营u%JbAuIbUSw7E2。