6. search和search for
search+搜查的对象，例如：search the house, search the prisoner.
Search for+，例如：search for gold, search for food.
也可以是：search+搜查的对象＋搜索的目标。例如：search the house for the thief

7. make up编造, make up for补偿、弥补, be made up of由….构成. 例如：
We had to work day and night to make up for the lost time.
He made up this story simply to draw attention to himself.
The exploration team was made up of 4 scientists, a doctor and an Indian guide.

8. go作为系动词用法小结：
1）表示“变得”，常和有关颜色、状态、质地的形容词或词组连用，例如：
a. His hair has gone gray.
b. He went purple（发紫）with anger.
c. The company went broke (破产)after such a heavy loss.
d. Milk goes bad (变质)very easily in hot weather.
e. The children went wild with excitement (高兴地发狂).
f. The project can be finished in a week if nothing goes wrong.
2）表示“选择….样的方式、采用….的方法”，例如：go natural回归自然, go international国际化, go native融入当地社会, go green追求绿色生活。
3）表示“未受到…”, 常和un+过去分词构成的形容词unpunished/unnoticed/unchallenged/ uncommented等连用，相当于“pass/get away without being＋过去分词”，例如：
a. Many important details have gone unnoticed while he was listening.
b. If his cheating goes unpunished, more students will follow suit（跟着学）.

9. Police have not ruled out the possibility that Justin was taken by aliens, but are also looking into other possibilities.
警方还没有排除Justin被外星人带走的可能性，但是也正在调查其他的可能性。

10. ‘Sometimes people make up such amazing stories’ says Detective Sam Peterson, who has taken charge of the case.
接管了这个案件的侦探 Sam Peterson说，有时候人们编造这样令人吃惊的故事。

11. We will not give up until we find convincing evidence.
直到我们找到令人信服的证据才放弃。

12. Footprints are one of the few pieces of hard evidence supporting the existence of Yeti.
脚印是少数证明雪人存在的有力的证据之一。

13. Also, they are always deeper than footprints made right next to them by men.
而且，他们总是比紧挨着他们的由人踩出来的脚印要深。

14. It could have made its way to other parts of the world and lived on until today.
这种动物可能艰难的去到世界其他地方并存活下来知道今天。

15. We might have the chance to see one with our own eyes.
我们可能有机会亲眼看见。

16. He thinks they are not doing their job properly.
他认为他们没有尽职。