A survey by an international temporary service agency found that U. S. managers believe that people with a sense of humour do better at their jobs, compared with those who have little or no sense of humour. In fact, about 96 percent of those surveyed said people with a sense of humour do better.

    The survey went on to point out that the results suggest that a sense of humour may help light-hearted employees keep their jobs during tough times. And, what's more, it may push them up the corporate ladder past their humourless colleagues. Why? It seems that those with a sense of humour are better communicators and better team players.

    Studies have shown that happy workers are more productive. In fact, a researcher at California State University found that humour could help the employees to release tension.

    Research done by psychologist Dr. Ashton Trice at Mary Baldwin College in Virginia showed that humour helps us think. When people feel stuck on important projects, they tend to feel angry or depressed.  According to Dr. Trice's research, taking time out to laugh can help us to get rid of negative feelings and allow us to return to a task or move on to another project unaffected by past defeat.

    If humour is really this important, then why don't we use it more often on the job? Most likely, the main reason is that many people are unaware of the positive effects of humour in the workplace. However, it is important to realize that some humour is not suitable for the workplace, and that it is often used at wrong times.

You shouldn't complain so much. Other people are               than you.

After the power was              , she had to deliver the baby in the darkness.

Who do you think will               this film?

We                      the excellent achievement you have made.

There are so many models on sale that I don't know which one to              .

—She is the kind of person who       (stand) out in a crowd.

    When China's astronaut Zhai Zhigang carried out the spacewalk on September 27, he was wearing a spacesuit developed by Chinese scientists. Being worth more than 30 million yuan, the Feitian (飞天) spacesuit is not       ordinary one.

    It       （take）Chinese scientists four years to develop it. But what is special about the suit? First Let's take a look at why      （astronaut） need to wear spacesuits.

    When you visit a world with little or no atmosphere, not      (wear) a spacesuit, the following things would happen:

    You would become unconscious within 15 seconds because there is no oxygen.

    Your blood and body fluids(液体) would “boil” and then “freeze”        there is little or no air pressure.

    You would receive various types of radiation.

    You could      (hit) by dust or rock that moves at high speeds.

So, to protect you      these dangers, a spacesuit must:

    Have a pressurized atmosphere;

    Give you oxygen;

    Keep a(n)       (comfort) temperature;

    Let you see clearly and move easily.

    The Feitian suit did all that and what it       （do）made it like a mini-spaceship in      the astronaut stayed alive in outer space and carried out tasks.