(三维) fantasy worlds in which players, linked by computer networks, appear to meet and go on explorations together."可知，虚拟现实技术应用在了很多领域当中。故选B。

　　4．C　根据下文"It could help psychologists deter identify and come up with solutions for behavior problems, for example."可知，"They see virtual reality technology as a useful tool for learning more about why people act as they do."中的"They"是指心理学家。故选C。

　　5．G　根据"This is psychologist's dream."可知，本处应该填心理学家的梦想。故选G。

　　Ⅲ.语法填空

　　Flying cars may soon become a __1__(real). The rideshare service Uber has asked __2__expert from NASA, the American space agency, __3__(help) the company develop cars that can fly.

　　Uber plans to use flying vehicles __4__the future to avoid traffic in and around cities. The company wants to use a small, totally electric aircraft, __5__can take off and land like a helicopter on top of parking garages. Uber said its flying vehicles would be much __6__(quiet), cost less to operate and produce less pollution than helicopters.

　　One person in San Francisco wrote on Twitter (推特), "I used to think that flying cars__7__(be) a ridiculous idea. __8__I changed my mind this morning when I sat in a heavy traffic." Another person added from Mumhai, India, "I'm reading about Uber __9__(hire) a NASA engineer to build flying cars, while I'm stuck in traffic. There is hope."

　　The expert predicts there will be several early models of cars that can't fly __10__(they) but with human pilots within one to three years.

　　1．________ 　2.________ 　3.________ 　4.________ 　5.________ 　6.________ 　7.________ 　8.________ 　9.________ 　10.________

　　篇章导读：本文是一篇说明文，主要介绍了Uber公司正在研发飞行汽车，这种汽车操作噪声小、耗能低、污染少。

　　1．reality　考查词性转换。句意：飞行汽车可能很快成为现实。空格前有不定冠词"a"限定，空格处应用名词，因此用所给词real的名词形式reality。

　　2．an　考查冠词。句意：Uber拼车公司已经邀请了一名来自美国航空机构--美国航空航天局的专家帮助研发一种可飞行的汽车。此处泛指一名专家，且expert的发音以元音音素开头，故用不定冠词an。

　　3．to help　考查非谓语动词。ask sb. to do sth.是常用短语，意为"要某人做某事"。故填to help。

　　4．in　考查介词。固定短语in the future "在未来，在将来"。故填in。

　　5．which　考查定语从句的引导词。句意：Uber公司想利用一种体积小、完全由电力供能的飞行器，这种飞行器能像直升机一样在停车场上空起飞和着陆。空格处引导非限制性定语从句，指代先行词"aircraft"，在从句中作主语。故填which。

　　6．quieter　考查形容词的比较级。根据后面的连词"than"可知，此处用比较级形式。故填quieter。

　　7．was　考查动词的时态和主谓一致。此处描述的是过去发生的事情，应用一般过去时；主语"flying cars"表示的是一类事物，并结合空格后的"a ridiculous idea"可知，谓语动词应用第三人称单数形式。故填was。

8．But　考查连词。根据语境可知，此处表示转折，因此用But。注意首字母大写。