阅读下面的短文，并根据短文后面的要求答题 (请注意问题后的字数要求)
[1] As well as increasing memory, being sad makes people less likely to be tricked and improves their ability to judge others，according to an Australian study．
[2] The study, authored by professor Joseph Foegas at the University of New South Wales，shows that people in a negative mood paid more attention to their surroundings than          ,
who were more likely to believe anything they were told．“While positive moods seem to promote creativity, flexibility, and cooperation，negative moods cause more attentive，careful thinking，paying greater attention to the outside world．”writes Forgas in Australasian Science．
[3] “Our research suggests that sadness promotes information processing strategies best fit for dealing with more demanding situations．”
[4] For the study, Forgas and his team conducted several experiments that started with making their subjects (实验对象) experience happy or sad moods by making them watch films and by recalling positive or negative events．
[5] In one of the experiments, happy and sad participants were asked to judge the truth of some urban myths (神话) and found that people in a negative mood were less likely to believe these statements. People in a bad mood were also less likely to make mistakes when asked to recall an event that they witnessed．
[6] The study also found that sad people were better at stating their case through written arguments．Thus, it showed that a reasonably negative mood may actually promote a more concrete, harmonious and successful communication style
[7] “Positive moods are not universally desirable．People in a negative mood are less likely to make judgmental errors and more resistant (抵制的) to eyewitness misunderstandings．”said Forgas．
76．What would be the best title for this passage? (within 8 words)
                                                                            
77．Fill in the blank in Paragraph 2 with proper words．(within 5 words)
                                                                            
78．In the experiments mentioned, what caused the participants’feeling to change?(within 8 words)
                                                                            
79．Which sentence in this passage is the closest in meaning to the following one?
According to the study, people in a negative mood could also express themselves better in
writing．
                                                                          
                                                                          
80．Translate the underlined sentence in Paragraph 5 into Chinese．