默写（共10空格；每空格1分，每空格不限填一词，满分10分）
NCE Lesson 4
These days, people who       often receive far more money than people who work in offices. People who work in offices are frequently       ‘white collar workers’ for the simple reason that they usually wear a collar and tie to go to work.
   , that a great many people are often willing to       for the privilege of becoming white-collar workers. This can       curious situations, as it did in the case of Alfred Bloggs who worked as a dustman for the Ellesmere Corporation.
Unit 4
However, the attitudes of scientists towards this rise are completely different.
On the one hand, Dr. Foster thinks that any trend in which the temperature increases by 5 degrees would      . She says, “We can’t predict the climate well enough to know
    , but it could be very serious.” Others who agree with her think there may be
     in the sea level, .... On the other hand, there are those, like George Hambley, who       this view and believe that we should not worry about high levels of carbon dioxide in the air. They predict that any warming will be mild with few bad      .