29、 The way we stereotype people is a less mature form of thinking, which is similar to__________

A．a stranger's less mature type of thinking

B．the most complex areas of our cortex

C．the immature form of thinking of a very young child

D．the meaning of incoming sensory information

E．the sights and sounds of the world

F．an opportunity to analyze different forms of thinking

30、 We can use our more mature style of thinking thanks to__________

A．a stranger's less mature type of thinking

B．the most complex areas of our cortex

C．the immature form of thinking of a very young child

D．the meaning of incoming sensory information

E．the sights and sounds of the world

F．an opportunity to analyze different forms of thinking

下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。请根据文章的内容，从每题所给的4个选项中选择l个最佳答案，涂在答题卡相应的位置上。

31、根据材料，回答31-36问题。

Effects of Environmental Pollution

If pollution continues to increase at the present rate, formation of aerosols (浮质) in theatmosphere will cause the onset (开始) of an ice age in about fifty years' time. Thisconclusion, reached by Dr S. I. Rasool and Dr S. H. Schneider of the United States GoddardSpace Flight Centre, answers the apparently conflicting questions of whether an increase in thecarbon dioxide (二氧化碳) content of the atmosphere will cause the Earth to warm up orincreasing the aerosol content will cause it to cool down. The Americans have shownconclusively that the aerosol question is dominant.

Two spectres haunting conservationists have been the prospect that environmental pollutionmight lead to the planet's becoming unbearably hot or cold. One of these ghosts has now beenlaid. because it seems that even an increase in the amount of carbon dioxide in the atmosphereto eight times its present value will produce an increase in temperature of only 2℃. whichwould take place over several thousand years. But the other problem now looms larger thanever.

Aerosols are collections of small liquid or solid particles dispersed in air or some othermedium. The particles are all so tiny that each is composed of only a few hundred atoms.Because of this they can float in the air for a very long time. Perhaps the most commonlyexperienced aerosol is industrial smog (烟雾) of the kind that plagued London in the 1950sand is an even greater problem in Los Angeles today. These collections of aerosols reflect theSun's heat and thereby cause the Earth to cool.

Dr. Rasool and Dr. Schneider have calculated the exact effect of a dust aerosol layer justabove the Earth's surface in the temperature of the planet. As the layer builds up, the presentdelicate balance between the amount of heat absorbed from the Sun and the amount radiated fromthe Earth is disturbed. The aerosol layer not only reflects much of the Sun's light but alsotransmits the infrhred (红外线的) radiation from below. So, while the heat input to thesurface drops, the loss of heat remains high until the planet cools to a new balanced state.

Within fifty years, if no steps are taken to stop the spread of aerosols in the atmosphere, acooling of the Earth by as much as 3.5℃. seems inevitable. If that lasts for only a few years itwould start another ice age, and because the growing ice caps at each pole would themselvesreflect much of the Sun's radiation it would probably continue to develop even if the aerosollayer were destroyed.

The only bright spot in this gloomy forecast lies in the hope expressed by Dr. Rasool andDr. Schneider that nuclear power may replace fossil fuels in time to prevent the aerosol contentof the atmosphere from becoming critical.

The author's main purpose in writing the article is to warn of__________

A．warm weather

B．hot weather

C．a new ice age

D．a new iceberg

32、 The word "spectres" in the second paragraph is closest in meaning to__________

A．pollution.

B．carbon dioxide

C．aerosols

D．ghosts

33、 We learn from the third paragraph that__________

A．London was plagued with rats in the 1950s

B．London is covered with smog today

C．London was polluted by smog in the 1950s

D．Los Angeles is as heavily polluted today as London was in the 1950s

34、 What will happen if the dust aerosol layer develops__________ ?

A．The Earth will get extremely hot.

B．The balance between the amount of heat absorbed from the Sun and the amount lost could hardly be maintained.

C．The light of the Sun could no longer reach the surface of the Earth.

D．Infrared radiation could no longer be transmitted from the Earth to outer space.

35、 The only way to stop the spread of aerosols in the atmosphere, according to Dr.Rasool and Dr. Schneider, is to use__________

A．fossil fuels

B．electric power

C．nuclear energy

D．coal power

36、根据材料，回答36-41问题。

Musical Robot Companion Enhances Listener Experience

Shimi, a musical companion developed by Georgia Tech's Center for Music Technology,recommends songs, dances to the beat and keeps the music pumping based on listener feedback.The smartphone-enabled ( 智能手机支持的), one-foot-tall robot is billed as an interactive"musical friend".

"Shimi is designed to change the way that people enjoy and think about their music," saidProfessor Gil Weinberg, the robot's creator. He will unveil the robot at the June 27th GoogleI/O conference in San Francisco. A band of three Shimi robots will perform for guests, dancingin sync with music created in the lab and composed according to its movements.

Shimi is essentially a docking station with a "brain" powered by an Android phone. Oncedocked the robot gains the sensing and musical generation capabilities of the user's mobiledevice, In other words, if there's an "app" for that, Shimi is ready. For instance, by using thephone's camera and face-detecting software, Shimi can follow a listener around the room andposition its "ears", or speakers, for optimal sound. Another recognition feature is based on rhythm and tempo. If the user taps a beat, Shimi analyzes it, scans the phone's musical libraryand immediately plays the song that best matches the suggestions. Once the music starts, Shimidances to the rhythm.

"Many people think that robots are limited by their programming insthuctions," said MusicTechnology Ph. D. candidate Mason Bretan, "Shimi shows us that robots can be creative andinteractive. " Future apps in the works will allow the user to shake their head in disagreement orwave a hand in the air to alert Shimi to skip to the next song or increase/decrease the volume.The robot will also have the capability to recommend new music based on the user's songchoices and provide feedback on the music play list.

Weinberg hopes other developers will be inspired to create more apps to expand Shirni'screactive and interactive capabilities. "I believe that our center is ahead of a revolution that willsee more robots in homes. " Weinberg said.

Weinberg is in the process of commercializing Shimi through an exclusive licensingagreement with Georgia Tech. Weinberg hopes to make the robot available to consumers by the2013 holiday season. "If robots are going to arrive in homes, we think that they will be thiskind of machines -- small, entertaining and fun, " Weinberg said. "They will enhance yourlife and pave the way for more intelligent service robots in our lives.

Which of the following is NOT true according to the first three paragraphs__________?

A．Shimi is a one-foot tall robot.

B．Shimi is the creator of the musical companion.

C．Shimi is a docking station (对着站) with a "brain" powered by an Android phone.

D．Shimi can gain the sensing and musical generation capabilities of the user's mobile device.

37、 What does Shimi do if the user taps a beat__________?

A．It stores the beat in the musical library.

B．It transmits the beat to the docking station.

C．It Positions its speakers for optimal sound.

D．It selects a perfectly-matched song.

38、 Compared with those robber limited the programming, Shimi is__________

A．same

B．similar

C．identical

D．different

39、 What is the prediction of Weinberg about Shimi__________?

A．Shimi can be applied to all types of smart phones.

B．Shimi will bring more fun to the human lives.

C．Shimi will be appreciated by all users.

D．Shimi will be commercialized by the end of 2012.

40、 What can we infer from the last paragraph__________?

A．The research center is developing a stronger and more versatile Shimi.

B．Georgia Tech. will develop more apps for Shimi.

C．Shimi is not yet technologically ready for commercialization,

D．Robots such as Shimi are created for large corporations rather than homes.