首页
登录
职称英语
[originaltext] Why, you may wonder, should spiders be our friends? (26)Beca
[originaltext] Why, you may wonder, should spiders be our friends? (26)Beca
游客
2024-05-12
11
管理
问题
Why, you may wonder, should spiders be our friends? (26)Because they destroy so many insects, and insects include some of the greatest enemies of the human race. Insects would make it impossible for us to live in the world; they would devour all our crops and kill our flocks and herds, if it were not for the protection we get from insect-eating animals. (27)We owe a lot to the birds and beasts which eat insects but all of them put together kill only a fraction of the number destroyed by spiders. Moreover, unlike some of the other insect eaters, (26)spiders never do the harm to us or our belongings.
Spiders are not insects, as many people think, nor even nearly related to them. One can tell the difference almost at a glance, (28)for a spider always has eight legs and insect never more than six.
How many spiders are engaged in this work in our behalf? One authority on spiders made a census of the spiders in grass field in the south of England, and he estimated that there were more than 2 250 000 in one acre; that is something like 6 000 000 spiders of different kinds on a football pitcll. (29)Spiders are busy for at least half the year in killing insects. It is impossible to make more than the wildest guess at how many they kill, but they are hungry creatures, not content with only three meals a day. It has been estimated that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country.
选项
A、They would have eight legs.
B、They would have six legs.
C、They would be able to fly.
D、They would not destroy their own kind.
答案
B
解析
推理判断题 。由前文可知蜘蛛不是昆虫,因为蜘蛛有八条腿,而昆虫只有六条腿(never more than six)。所以如果蜘蛛是昆虫的话,它们将只能有六条腿。
转载请注明原文地址:https://tihaiku.com/zcyy/3595772.html
相关试题推荐
[originaltext]WilliamShakespearewaschristenedinthemarkettownofStra
[originaltext]WilliamShakespearewaschristenedinthemarkettownofStra
[originaltext]WilliamShakespearewaschristenedinthemarkettownofStra
[originaltext]I’dliketosharewithyoutodaymyexperiencewithanewap
[originaltext]I’dliketosharewithyoutodaymyexperiencewithanewap
[originaltext]WhenMidoriwastwoyearold,sheoftenclimbedontothepiano
[originaltext]Recently.amanwhowasalwaysi13goodhealth,spentaweek
[originaltext]Recently.amanwhowasalwaysi13goodhealth,spentaweek
[originaltext]W:I’mgoingtoleaveworkearlytoday.There’sadebatethiseve
[originaltext]W:I’mgoingtoleaveworkearlytoday.There’sadebatethiseve
随机试题
A.autonomyB.bondsC.chronicD.correlatedE.detailF.in
Hello,everyone.Itisagreatpleasuretohaveyouasassistantstohelp【B1
[originaltext]M:Icouldn’tputupwithmywifeanylonger.Idon’tknowwhysh
根据《民法典》,下列关于承诺的说法,正确的是( )。A.承诺期限自要约发出时开始
符合罗伊对护理概念阐述的是A:护理是采取措施,控制作用于人的适应性,以提高人的适
2005年小李将他的全部收入用在两种商品X和Y上。与2005年相比,2006年商
—般来说,若投资人的理财理念是避免财富的快速流失,承担低风险的同时获得有保障的收
甲生前立遗嘱将一件古玩赠给乙,甲死后乙表示接受遗赠,在遗产分割前乙死亡,应如何处
某男性患者,45岁,前牙唇侧龈乳头增大表面呈颗粒结节样改变,该患者有癫痫病史
根据可能产生职业病危害程度的不同,《建设项目职业病危害管理办法》将建设项目分为一
最新回复
(
0
)