The following sentence includes an example. Find out the example signal. (每句只有一个example signal) (例如: More and more people are leading sedentary life styles due to work conditions. Take, for example, office workers in the UK who spend at least 8 hours a day, 5 days a week sitting in front of their computers. 则本句中的 example signal 即为 for example ). 1. Global warming should be taken more serious as it can result in a number of disastrous consequences. To give a clear example, the melting polar ice caps have not only caused a loss of habitat for polar bears but are also threatening seas levels worldwide.