Who is better at predicting earthquakes, animals or scientists with instruments? Evidence collected so far suggests that an ordinary animal—a dog, a horse, a pig—may give as reliable a warning of an_impending_earthquake as scientists.

In 1970, 200 instruments failed to predict a California earthquake that shook buildings in San Francisco, 78 miles away. But in 1974, several months before a big earthquake in China, pigs climbed the walls, hens would not roost (棲息), trained dogs did not obey commands and farmyard geese refused to fly. The Chinese scientists paid attention to these and other signs, they educated people before the earthquake struck there and saved a hundred thousand lives.

Many nations now have animals?warning centers to try to learn the animal sense so that instruments can be built to detect the same signal.

1．This passage mainly tells us ________.

A．a(chǎn)bout the big earthquake in San Francisco

B．that animals can predict earthquakes

C．that animals are better at predicting earthquakes than scientists

D．that some of the animals are clever than human beings

2．The underlined words “an impending earthquake” mean an earthquake ________.

A．that will take place very soon

B．that has just taken place

C．that will not take place

D．that will take place in a very long time

3．In 1974, many people's lives were saved in the earthquake because ________.

A．a(chǎn)nimals climbed the walls or did not obey orders

B．people knew the correct time of the earthquake

C．scientists knew an earthquake would come and people were well prepared for it

D．scientists prevented the earthquake from taking place

4．Now many countries want to predict earthquakes better ________.

A．with the help of animals

B．a(chǎn)ll by themselves

C．than animals

D．without animals

 

1．B　通讀全文可知，本文討論的是動(dòng)物的反常行為可以成為預(yù)測地震的依據(jù)，故B項(xiàng)正確。文中并沒有說動(dòng)物在預(yù)測地震方面比科學(xué)家更強(qiáng)或是比人類更聰明。

2．A　由文章第二段第二句所舉事例“But in 1974, several...refused to fly”可知，動(dòng)物的反常行為發(fā)生在地震前的幾個(gè)月，因此“an impending earthquake”應(yīng)該指將要發(fā)生的地震，故A項(xiàng)正確。

3．C　由文章第二段可知，由于科學(xué)家們注意到了動(dòng)物的反常行為，由此推測出地震發(fā)生的可能性，并告知了當(dāng)?shù)鼐用裉崆白龊脺?zhǔn)備，這才挽回了很多人的生命，故C項(xiàng)正確。

4．A　由最后一段可知，很多國家建立了動(dòng)物警報(bào)中心，通過對動(dòng)物感知的研究來協(xié)助儀器進(jìn)行地震的探測，以便更好地進(jìn)行地震預(yù)測，故A項(xiàng)正確。

 

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