1.What causes a super bloom to happen in the desert?

A.Steady rainfall in a year.

B.Occasionally rainfall in winter.

C.Heavy rainfall in spring

D.Abnormal rainfall in autumn.

2.If you want to escape from reality, you can go to 　　　　.

A.Mojave Desert B.Wallops Flight Facility

C.Catatumbo Camp D.Death Valley National Park

　　People love spreading information and sharing opinions. You can see this online: every day, 4 million new blogs are written, 80 million new photos are uploaded and 616 million new tweets are released into cyberspace. We experience a burst of pleasure when we share our thoughts, and this drives us to communicate. It is a useful feature of our brain, because it ensures that knowledge, experience and ideas do not get buried with the person who first had them, and that as a society we benefit from the products of many minds.

　　Of course, in order for that to happen, merely sharing is not enough. We need to cause a reaction. Each time we share our opinions and knowledge, it is with the intention of having an impact on others. Here's the problem, though: we approach this task from inside our own heads. But if we want to have an impact on others, we need to understand what goes on inside their heads.

　　What determines whether you affect the way others think and behave or are ignored? You may assume that numbers and statistics are what you need to change their point of view. Well, experiments have pointed to the reality that people are not driven by facts. They are not enough to alter belief, and they are practically useless for motivating action. Consider climate change: there are mountains of data indicating that humans play a role in warming the globe, yet approximately 50% of the world's population doesn't believe it. What about health?

Hundreds of studies show that exercise is good for you and people believe this to be so, yet this knowledge fails miserably in getting many to step on a treadmill(跑步机).