brain technology"可知，研究者使用磁共振成像检查技术对参与者的大脑进行检测，故选B项。

　　2．How would the author feel about the findings of the study?

　　A．It is pioneering. 　 B．It is groundless.

　　C．It is imperfect. D．It is uncommon.

　　答案与解析：A　考查推理判断。根据第五段中的"The research made discoveries that had never known before"可知，该研究的发现是前所未有的，故pioneering"开创性的，先驱的"符合题意。

　　3．What does the underlined phrase "weighed in on" mean?

　　A．Think highly of. B．Look down on.

　　C．Pay attention to. D．Make fun of.

　　答案与解析：A　考查词义猜测。根据最后一段Dr. Andy Myers的话"For the first time we have been able to prove the physical and emotional benefits of places, far beyond any research that has been done before"可推知，Dr. Andy Myers认为这个研究开辟了先河，比之前的任何研究都好，所以对它"高度评价"。

　　4．What does the text mainly talk about?

　　A．Everyone has his way to be happy.

　　B．Valuable places can make people happy.

　　C．Teddy bears are best memories for children.

　　D．Meaningful objects lead to greater well­being.

答案与解析：B　考查主旨大意。根据第一段中的"new research