()7.A.Whichever

　　B．Whatever

　　C．However

　　D．Wherever

　　()8.A.ask

　　B．doubt

　　C．warn

　　D．know

　　()9.A.unless

　　B．until

　　C．because

　　D．before

　　()10.A.celebration

　　B．sure

　　C．attention

　　D．study

　　()11.A.leading

　　B．part

　　C．bad

　　D．good

　　()12.A.thinks

　　B．demands

　　C．tells

　　D．suggests

　　(二)

　　People who are cheerful and relaxed are less likely to suffer from colds. It’s __13__ that being full of vim(活力) and vigor (精力)helps the body fight illnesses, say the researchers from Carnegie Mellon University (CMU) in Pittsburgh.

　　“We need to take more seriously the possibility that a __14__ emotional style is a major player in disease risk，” says psychologist Sheldon Cohen, the study’s lead researcher.

　　In a previous study, Cohen and his colleagues found that people who__15__ to be cheerful and lively were least likely to develop sniffles, coughs, and other cold symptoms(症状).

　　Those findings were interesting, but they didn’t prove that a person’s __16__ affects whether he or she gets sick. Instead, it was still possible that a person’s underlying personality is what matters.

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