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3.阅读下面短文,在短文的空格内填入适当的词,使其内容通顺.(每空格限填一词)
Did you know that the Earth is home to(57)millions of animals?A recent survey shows that scientists have found more than 2 million kinds of animals and there are over 10million we haven't discovered yet.
Animals are much more than food or pets for humans.Animals are(58)clever.Some of them do very unusual things.Research shows that animals can use tools.For example,chimpanzees(黑猩猩) use sticks to get white ants out of the ground.They even teach each other how to use tools.
Scientists find that animals have their (59)own ways to communicate.Did you know dolphins(海豚) use ultrasound(超声) to communicate?Birds learn to sing from their parents.They also learn to tell the difference between the sound of their group and those of other groups.
Animals have societies too.Let's take ants as an (60)example.An ant family usually has millions of ants.Some ants are strong enough to fight against enemies(敌人).Some take care of babies.Others go looking for food.They have organizations that make the group work well.
Animals can help humans in many ways.Long age,people used pigeons(鸽子) to send mail over long distances.Dogs have been the best friends to humans since ancient times.Nowadays some dogs are even (61)able to guide blind people.Dogs also use their noses to search out drugs for the police.

分析 这篇短文主要介绍了地球是数百万动物生活的家园.着重从以下几个方面介绍了动物的与众不同:一是有些动物非常聪明;二是动物都有自己的交流方式;三是动物也有社会性;四是动物可以帮助人类做很多事情.

解答 57.答案:millions 考查量词的用法.联系语境,根据后句的关键词2 million kinds of animals和over 10million 可知,此处应填的词与数量million有关;结合关键词of animals可知这里指的动物的数量不是确定的数目,所以应用million的复数形式millions,构成固定用法millions of,意为"上百万的".故填millions.
58.答案:clever 考查形容词的用法.联系语境,根据Some of them do very unusual things.Research shows that animals can use tools.等描述可知,有些动物能够做很不寻常的事情,作者以黑猩猩为例说明动物能够使用工具,所以我们可以知道动物是很聪明的.结合前面的系动词are可知后面应该跟形容词,所以此处应该用形容词clever,意为"聪明的".故填clever.
59.答案:own 考查形容词的用法.联系语境,根据Did you know dolphins(海豚) use ultrasound(超声) to communicate?Birds learn to sing from their parents.等描述,可知不论是作为海豚,还是作为鸟类,它们都有自己独特的交流方式;结合关键词ways,可知前面应用形容词修饰;根据前面的分析,此处应该用形容词own,意为"自己的,特有的";own ways意为"自己的或特有的方式".故填own.
60.答案:example 考查固定短语的用法.联系语境,根据前后文Animals have societies too及An ant family usually has millions of ants…等描述可知,这里作者是以蚂蚁为例向我们说明动物也有社会.结合关键词take ants as an…可知此处应该用固定短语take…as an example,意为"以…为例".故填example.
61.答案:able 考查固定短语的用法.联系语境,根据Nowadays some dogs are even…to guide blind people可知现在一些狗还能给人导盲,强调一种能力;结合关键词are even…to可以联想到固定短语be able to意为"能够做某事".故填able.

点评 此篇为说明文的完形填空题,主要介绍了有关动物的知识,使我们对于动物有了全方位的了解.做题时一定要联系上下文的内容,从句子的含义出发是关键,可以借助于固定短语等辅助答题.利用已有的词汇知识展开联想贴合句意写出正确的单词.

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