D. have smooth surfaces.

答案：C

44. Large pillars and corners may

A. make sound rich and full.

B. be cures for sound problems.

C.be sources of sound problems.

D. function as effectively as clouds.

答案：C

45. The word" acoustic" in thelast paragraph has something to do with

A. performance

B.sound

C. audience

D. weather

答案：B

补全短文

What Is a Dream?

For centuries, people have wondered about thestrange things that they dreamabout. Some psychologists say that thisnighttime activity of the mind has nospecial meaning. Others，however， think that dreams are an importantpart of ourlives. In fact, many experts believe that dreams can tell us abouta person’smind and emotions.

Before modern times, many people thought thatdreams contained messages fromGod. ___E________(46)

The Austrian psychologist, Sigmund Freud1，was probably the first persontostudy dreams scientifically. In his famous book, The interpretation of Dreams(1900), Freud wrote that dreams are anexpression of a person’s wishes. Hebelieved that dreams allow people toexpress the feelings, thoughts, and fearsthat they are afraid to express inreal life.

The Swiss psychiatrist Carl Jung2 wasonce a student of Freud’s.Jung，however，had a different idea about dreams. Jung believed that the purposeofa dream was to communicate a message to the dreamer. ______F_____(47)Forexample, people who dream about falling may learn that they have too highanopinion of themselves. On the other hand, people who dream about beingheroesmay learn that they think too little of themselves.

Modern-day psychologists continue to developtheories about dreams. Forexample, psychologist William Domhoff from theUniversity of California, SantaCruz，believes that dreams are tightly linked to a person’s daily life,thoughts,and behavior. ______C_____(48)

Domhoff believes that there is a connectionbetween dreams and age. Hisresearch shows that children do not dream as muchas adults. According toDomhoff, dreaming is a mental skill that needs time todevelop.

He has also found a link between dreams andgender. His studies show that thedreams of men and women are different. ____A_______(49)This is not true ofwomen’s dreams.3 Domhoff found this genderdifference in the dreams of peoplefrom 11 cultures around the world, includingboth modern and traditionalones.

Can dreams help us understand ourselves?Psychologists continue to try toanswer this question in different ways. _____D______(50)The dream may havemeaning, but it does not mean that some terrible event willactually take place.It’s important to remember that the world of dreams is notthe real world.

A. For example, the people in men's dreamsare often other men. and the dreamsoften involve fighting.

B. Men and women dream about differentthings.

C. A criminal, for example, might dreamabout crime.

D. However, one thing they agree on this:If you dream that something terribleis going to occur, you shouldn't panic.

E. It was only in the twentieth centurythat people started to study dreams ina scientific way.

F. He thought people could leam more aboutthemselves by thinking about theirdreams.

 

完形填空

Warmer Climate Will Bake TropicalBugs

Globalwarming could cook tropical insects, with unpredictable knock-oneffects, sayresearchers who warn that rising temperatures also______(51)tropical frogs,lizards (蜥蜴).

Temperaturesare ______ (52) to increase much faster in temperate(温和的)andpolar(极地的)regions than in the tropics. But no-one had looked at how warmingwould affectinsects and other cold-blooded animals ______ (53) had evolved intropicalregions with little temperature variation.

CurtisDeutsch at the University of California at Los Angeles and colleaguesanalyseddata ______ (54) insect survival and reproduction for 38 species indifferentecosystems(生态系统), andthen estimated how these values would ______ (55)with predictions of climatechange for the 21st century.

Theteam found that the reproductive ______ (56) of tropical insects tends topeakvery close to the temperatures where they normally live, but______ (57)sharplyat higher temperatures. This means that cranking up (提高)theheat only asmall amount can exert a heavy toll, leaving insects unable toreproduce ______(58) enough to keep up their numbers.

Temperaturetolerance

Temperateinsects reproduce well over a broader range, and do not live as______ (59) totheir thermal(热的)limit, so they can reproduce successfully whentheir climate warms more than inthe tropics.

“Tropicalinsects do very well in a narrow band of temperatures, but move themabove that______ (60) and they die,” says team member Josh Tewksbury of theUniversity ofWashington in Seattle.

Theheart of the ______ (61) is temperature tolerance. emperate-zone insectshaveevolved to survive the much broader temperature swings of seasonalclimates,than have their tropical relatives.

The______ (62) appears worse for animals that live in hot stable climate ofthelower levels of tropical forests. Lizards in clear areas can find shade tocooldown, but those living in the forest are already in the ______ (63),andthere's not much they can do to get cooler, Deutsch says.

Too fewtropical insects have been studied so far to ______ (64) if anyparticulargroup will be particularly hard-hit, says Tewksbury. Insects playimportant______ (65) in forest ecology(生态学), including pollination, andeatingdetritus to recycle carbon.

Theteam are now starting to eva luate how temperature affectsecologicalinteractions of insects with other species, including crops such asAfricancorn.

参考答案：

51 threaten　　52 expected　　53 that　　54 on　　55 change

56 rate　　 57 drops　 　58 sucessfully　　59 close　　60 range

61 problem　　62: effect　　63 shade　　 64 tell　　65 roles

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