题目内容
阅读理解
Men arc the cleverest and most dangerous animals on earth. Rats come second. Men kill their enemies. They have killed millions of men since ancient(古代的)times—but rats have killed hundreds of millions of men. Rats carry diseases. Black rats carry fleas(跳蚤), and these fleas give men bubonic plague(淋巴腺鼠疫). Bubonic plague still kills thousands of Asians and Africans today—us it killed millions of Europeans in the past, until brown rats came to Europe and pushed the black rats out. There is no plague in Europe, but brown rats carry thirty-five other diseases—typhus(伤寒)for example. Typhus has killed 200 million people in the past 400 years. Rats are dangerous. They not only carry diseases into men's homes, they also take men's food. They eat 33 million ton of grain every year. That is enough grain to feed 200 million people—so men died of hunger because rats eat their food. Rats are clever, too. They have good leaders. Men try to poison them, but if their leaders tell them that food is dangerous they do not eat it. So our cities ad villages are full of rats. We can go to the moon, but we can not kill this dangerous enemy. Why? Is it because we are not clean?
1.There are no black rats in Europe today because ________.
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A.they got plague in the Middle Ages
B.Europeans are cleaner than Asians or Africans
C.men killed them all with diseases
D.brown rats took their place
2.Rats are clever enough to ________.
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A.know when food has got poison in it
B.have good leaders and tell them what to do
C.eat food that has been poisoned
D.kill men who are dangerous to them
3.In the last 400 years, about how many people were killed by typhus each year?
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4.According to the passage, which of the following is NOT true?
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A.Rats not only carry diseases but also eat huge amounts of grain every year.
B.Men can not go to the moon without killing the rats.
C.The amount(量)of grain which rata eat every year can feed about 4% of the world population.
D.Rats are dangerous enemy to people.
解析:
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1.D.took their place意为“取而代之”,合文中的“…until brown rats came to Europe and pushed the black rats out.”之意. 2.B.根据文中的细节:They have good leaders…tell them that food is dangerous they do not eat it. 3.C.注意题干中的each year.通过计算:200,000,000÷400=500,000,即half a million. 4.B.B意为“人们不杀死老鼠,就去不了月球”,不符合文中的“我们能够登月,却杀不死老鼠这种危险的敌人”之意. |
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