Question

阅读理解 　　Ants are amazing．They can carry things on their backs many times their own size and weight．And they work as a team to build huge underground homes． 　　But beware if you want to play with this insect because a new species of killer ant has arrived in China． 　　Red fire ants will attack anything from pets to humans if disturbed． 　　These ants, named for their burning sting, have been found in Hong Kong and some cities in Guangdong Province．Experts warned that inland cities such as Beijing should also look out for their possible invasion． 　　Originally from South America, these ants entered North America in the 1930s．They were then transported to Australia, New Zealand and Taiwan more recently． 　　They became a big concern outside South America because they have no natural enemies elsewhere． 　　Red fire ant mounds(蚁丘)have been found everywhere from open grasslands to vegetable gardens．They have also been known to invade air conditioners and traffic lights because of their attraction to electrical current． 　　The pest eats away plants roots, stems, leaves and fruits．When a red fire ant mound is disturbed the ants will attack．And repeated stings could lead people to have chest pains and shock．In extremely rare cases it could cause the person to go into a coma or even die． (1) Red fire ants were first discovered in ________． [　　] A． North America B． South America C． New Zealand D． Hong Kong (2) Red fire ants cannot ________． [　　] A． carry things heavier than themselves B． protect their mounds in heavy rain C． invade air conditioners D． sting larger animals (3) Red fire ants invade traffic lights because ________． [　　] A． they want to build a home there B． they want to control the traffic C． they are attracted to electrical current D． they can escape from their enemies by doing this (4) Why should we be alert for these red fire ants? [　　] A． They don't have natural enemies in China so it is impossible to control them． B． They cause a great loss in agriculture by damaging plants． C． They will attack people when disturbed and their sting can even cause people to die． D． All the above．

Answer 1

答案：1．B;2．B;3．C;4．D;
解析：

(1)	考查细节理解题。根据文章第五段中Originally from South America可知。
(2)	考查细节理解题。根据第一段可知A正确，因为red fire ant也属于蚂蚁的一种；B文中没有提到；根据文章倒数第二段的最后一句话可知C正确；根据文章第三段可知D正确。
(3)	考查细节理解题。根据文章倒数第二段的最后一句话可知。
(4)	解析：考查细节理解题。根据文章最后三段对red fire ants各种危害的描述可知。 　　文章大意：本文主要描述了一种刚刚传播到我国台湾、香港和广东几个城市的一种叫red fire ant的破坏性极大的蚂蚁。