1．Yellow is usually the color of happy，joyful emotions （情感）．But according to a new study，not all people associate the sunshiny shade with good feelings．
To find out what factors might play a role，researchers tested a new hypothesis （假設(shè)）：What if people's physical surroundings affect their feelings about certain colors？For example，if someone lived in cold and rainy Finland，would they feel differently about the color yellow from someone who lived near the Sahara Desert？
The researchers looked at color-emotion data from an ongoing international survey （調(diào)查） of 6 ，625 people in 55 countries．The survey asked participants to rate 12 colors on how closely they were associated with feelings including joy，pride，fear，and shame．
The researchers paid particular attention to the data for yellow，and analyzed how different factors一including hours of sunshine，hours of daylight，and the amount of rainfall一lined up with the emotions people reported for the color．The two best predictors of how people felt about yellow were the annual amount of rainfall，and how far they lived from the equator （赤道）．
Overall，people were more likely to associate yellow with joy when they lived in rainier countries that lay farther from the equator，researchers reported in the Journal of Environmental Psychology．In Egypt，the likelihood of yellow being associated with joy was just 5.7% ，whereas in chilly Finland it was 87.7%．In the United States，with its mild climate and amber waves of grain，people's yellow joy association levels were between 60% and 70%．
The researchers also checked whether associations changed with the season - whether，for example，people in a certain country liked yellow more in the winter than they did in the summer．They found that opinions about color remained fairly constant year-round 一even when the weather changed，the data on yellow-joy associations were as good as gold．
（1）What did the researchers do before the survey？
A．They went to Finland．
B．They made an assumption．
C．They studied certain colors．
D．They analyzed some data．
（2）Which of the following affects people's feelings about yellow？
A．The changeable seasons．
B．The length of daytime．
C．The geographic position．
D．The amount of snowfall．
（3）How did the researchers carry out the survey？
A．By interviewing participants．
B．By studying the data collected．
C．By travelling around the world．
D．By looking at color combinations．
（4）What can be the best title of the text？
A．Finland ：A Country Admiring Yellow．
B．Yellow：Associated with Joy Conditionally．
C．Color ：An Important Role in Good Feelings．
D．Color-emotion Data ：Collected Internationally．
