题目内容

【题目】

1The water pipes in some buildings cracked and______(爆裂)

2I was f______(害怕)of being left alone in the house.

3We take______(遮蔽)in the hotel when the war starts

4The castle now is in______(废墟)

5Liu Xiang dropped out of the race due to his foot______.(伤害)

【答案】

1burst

2Frightened

3Shelter

4ruins

5injury

【解析】根据汉语提示完成句子,要注意使用适当的词形变化。

1句意:一些建筑物的水管破裂了。破裂burst,原形,过去式,过去分词三种形式拼写一样。故填burst。

2句意:我害怕被独自留在房间里。以字母f开始的单词表示“害怕”be frightened of,故填frightened。

3句意:战争开始时,我们在旅馆里躲避。Take shelter“寻求庇护,避难,故填shelter。

4句意:现在城堡一片废墟。In ruins成为废墟。故填ruins。

5句意:刘翔由于腿伤推出了比赛。injury“伤害”。故填injury。

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【题目】According to a team of researchers, an animals’ ability to perceive(感知)time is linked to their pace of life.

“Our results lend support to the importance of time perception in animals where the ability to perceive time in a very short time may be the difference between life and death for fast moving creatures.” commented lead author Kevin Healy from Trinity College Dublin.

The study was done with a variety of animals using a phenomenon based on the maximum speed of flashes of light an individual can see before the light source is seen as constant. Dogs, for example, have eyes with a refresh rate higher than humans.

One example of this phenomenon at work, the authors say, is the housefly and its ability to avoid being hit. The research showed flies “observe motion in a shorter time than our own eyes can achieve,” which allows them to avoid being hit.

Professor Graeme Ruxton of the University of St Andrews in Scotland, who worked jointly on the research project, said in a statement, “Having eyes that send updates to the brain at much higher frequencies than our eyes do is of no value if the brain cannot process that information equally quickly. Thus, this work highlights the impressive abilities of even the smallest animal brains. Flies might not be deep thinkers, but they can make good decisions very quickly. ”

In comparison, the tiger beetle (虎甲虫)runs faster than its eyes can keep up, basically becoming blind, which requires it to stop periodically to re-evaluate its prey’s (猎物)position.

Our results suggest that time perception offers an as yet unstudied dimension along which animals can specialize and there is considerable range to study this system in more detail.

1What is the research mentioned in the passage mainly about?

A. Pace of life of animals. B. Time perception of animals.

C. Lifetime of small animals. D. Impressive abilities of animals.

2What does Kevin Healy’s comment mean in Para. 2?

A. The ability of animals to perceive time depends on their high moving speed.

B. The survival of fast moving animals relies on their ability to perceive time.

C. Animals with quicker pace of life have better perception of time.

D. Animals with poor ability of time perception have a shorter life.

3Why can houseflies avoid being hit?

A. They can think very deeply before they act.

B. They can fly much faster than their eyes can keep up.

C. They can process the information as quickly as they receive it.

D. They can send information to brain more quickly than to their eyes.

4What will a tiger beetle have to do to catch a moving prey?

A. Try to run as fast as it can.

B. Prevent itself from becoming blind.

C. Slow down to gain its time perception.

D. Stop occasionally to spot the prey again.

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