The research was reported in The American Journal of Psychology. 揥e need to study this in a larger sample but we believe that we might be able to monitor the blood to identify those at risk of suicide. After all, suicide is a major preventable public hemalth problem, but we have been stymied in our prevention efforts because we have no steady way to predict those who are at increased risk of killing themselves, ” says study leader Dr. Zachary Kaminsky, an assistant professor of psychological and behavioral sciences. “With a test like ours, we may be able to cut down suicide rates by identifying those people and intervening early enough to head off a catastrophe.”

　　The blood test managed to predict those with the most severe risk of suicide with 90 per cent accuracy. They could also spot if someone had already attempted suicide with 96 per cent accuracy, simply by looking at the levels of SKA2.

　　1. What’s the purpose of the blood test?

　　A. To predict people’s characters.

　　B. To help cure those who lack SKA2.

　　C. To see whether people get infected by illness.

　　D. To predict whether someone may attempt suicide.

　　2. According to the text, those who attempt suicide ________.

　　A. have too much SKA2

　　B. have variations in the gene SKA2

　　C. have fewer abnormal behaviors than others

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