题目内容

【题目】For my fifth birthday, my mother baked me a cake ______ a monkey.

A.in the shape ofB.beyond the reach of

C.at the mercy ofD.on the side of

【答案】A

【解析】


考查介词短语辨析。句意:我五岁生日的时候,妈妈给我烤了一个猴子形状的蛋糕。A. in the shape of……形状;B. beyond the reach of超出……的能力之外C. at the mercy of ……的支配;D. on the side of拥护……,站在……的一边。蛋糕是猴子形状的。故选A

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【题目】 What’s in the scream? It is thought that the sound of a scream has an acoustic(听觉的) signature - an acoustic DNA that tells the listener’s ear that they are hearing a scream, even if it is not. “The scream may initially run to scare the attacking predator(捕食者). The study of screaming has the potential to help us understand the evolution of emotional communication,” says Jay Schwartz of Emory university.

Jay Schwartz and his colleagues asked 181 volunteers to listen to 75 sounds that included laughter, crying, moans, groans, and yells from acted origins, like television or movies, and more natural sources, such as a YouTube video of a child opening a present and screaming in delight. The listeners indicated whether or not each sound was something they considered a scream. “We did not provide any type of definition for a scream because we were trying to get at what is it in people’s minds that distinguishes a scream,” says Schwartz, who presented his work at a meeting of the Acoustical Society of America on 14 May.

When they analyzed the sound files, they found that the ones listed as screams had acoustic similarities. People were more likely to consider a sound a scream if it was higher in pitch(音高), and had a varied change in pitch, first moving up and then down at the end.

Rapid changes in amplitude - perceived as a rough, gravelly quality - also tended to be classified as screams more than sounds with a smoother tone. This sound was classified as a scream by 64 percent of the listeners. Surprisingly, a recording of a whistle was categorized as a scream by 70 percent of the participants. “It was because the whistle exhibited a lot of the acoustic qualities that we found to be associated with a scream, including high pitch and roughness,” says Schwartz.

1What was the scream used for in the beginning?

A.Frightening the enemies.B.Sharing the different acoustic DNA.

C.Attracting the volunteersD.Understanding the emotional evolution.

2What does Jay Schwartz’s research aim to understand?

A.Where people would scream.B.How people judged the scream.

C.Why people would scream.D.What was the best scream.

3What did the screams have in common?

A.Higher pitch.B.A peaceful mind.

C.Natural origins.D.Different functions.

4Why was the whistle considered a scream by most listeners?

A.It had the smoother tone.B.It showed some roughness.

C.It made listeners satisfied.D.It did great harm to people.

【题目】 It is reported in the national press that a letter written by Charles Darwin in 1875 has been returned to the Smithsonian Institution Archives (档案馆) by the FBI after being stolen twice.

“We realized in the mid-1970s that it was missing,” says Effie Kapsalis, head of the Smithsonian Institution Archives. “It was noted as missing and likely taken by an intern (实习生), from what the FBI is telling us. Word got out that it was missing when someone asked to see the letter for research purposes,” and the intern put the letter back. “The intern likely took the letter again once nobody was watching it.”

Decades passed. Finally, the FBI received a tip that the stolen document was located very close to Washington, D.C. Their art crime team recovered the letter but were unable to press charges because the time of limitations had ended. The FBI worked closely with the Archives to determine that the letter was both authentic and definitely Smithsonian’s property.

The letter is in fairly good condition, in spite of being out of the care of trained museum staff for so long. “It was luckily in good shape,” says Kapsalis, “and we just have to do some minor things in order to be able to unfold it. It has some glue on it that has colored it slightly, but nothing that will prevent us from using it. After it is repaired, we will take digital photos of it and that will be available online. One of our goals is to get items of high research value or interest to the public online.”

It would now be difficult for an intern, visitor or a thief to steal a document like this. “Archiving practices have changed greatly since the 1970s,” says Kapsalis, “and we keep our high value documents in a safe that I don’t even have access to.”

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