首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、All the time. B、For most of the year. C、In the summer months. D、For a minimum of six months of each year. D事实细节题 。蜘蛛至少有半年的时间忙于
A、All the time. B、For most of the year. C、In the summer months. D、For a minimum of six months of each year. D事实细节题 。蜘蛛至少有半年的时间忙于
admin
2013-02-05
19
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、All the time.
B、For most of the year.
C、In the summer months.
D、For a minimum of six months of each year.
答案
D
解析
事实细节题 。蜘蛛至少有半年的时间忙于消灭害虫,即D “每年至少有六个月的时间”。minimum意为“最小值,最少”。
转载请注明原文地址:https://kaotiyun.com/show/OkI7777K
0
大学英语六级
相关试题推荐
Aftertheearthquake,thetextmessagescamestreaminginto4636—reportsoftrappedpeople,fires,pollutedwatersources,an
A、Impolitebutcommon.B、Annoyingbutcommon.C、Annoyinganddislikable.D、Commonandacceptable.A选项均为形容词词组表明,本题可能考查对某件事情的看法。男士
Auto-Tune:WhyPopMusicSoundsPerfectIfyouhaven’tbeenlisteningtopopradiointhepastfewmonths,you’vemissedthe
A、Stayandnegotiateormove.B、Buyalaptoporaccepttheincrease.C、Moveclosertotheschoolorthesubway.D、Theyhavenoc
A、Dr.Johnsonandtheguestspeakerwereschoolmates.B、Dr.Johnsoninvitedtheeconomisttovisittheirschool.C、Theguestlec
A、GhanaiantomatoestastebetterthanBritishones.B、BritishtomatoesarehealthierthanGhanaianones.C、Protectingtheenviro
A、Abouthalfofthemareunavailableonthemarket.B、Thekitchenwareinhisshopisofuniquedesign.C、Allofthemaremanufac
A、Becausehepreferstogooutofthestate.B、Becauseheneedstogainmorecredits.C、Becausehewantstobeanassociateprof
Childrenarelosingtheabilitytoplayproperlybecausetheyarebeinggiventoomanytoysandgames,accordingtoanewresear
Childrenarelosingtheabilitytoplayproperlybecausetheyarebeinggiventoomanytoysandgames,accordingtoanewresear
随机试题
加强对生产现场监督检查,严格查处违规作业、________、违反劳动纪律的“三违”行为。
重镇安神药中能活血散瘀,可用于痛经经闭,心腹刺痛,瘕瘕积聚的药物是
针刺皮肉浅薄部位的腧穴;最适宜采用的进针方法
含碱性成分的中药及其制剂不能与下列哪类药合用
发包人应当依据相关工程的工期定额合理计算工期,压缩的工期天数不得超过定额工期的()。
根据《建设工程施工专业分包合同(示范文本)》(GF一2003-0213),以下不属于承包商责任义务的是()。
某建设工程未经验收,发包人却擅自使用,则该工程竣工日期为()。
根据下列文字回答以下问题:《2005年中国人才报告》指出,随着改革开放的不断深入,国有企业职工人数和人才总量自上世纪90年代末以来持续下降,1996年我国国有单位职工总数(包括公务员)10949万人,到2001年,仅为7409万人,平均每年减少5
在公众印象中,每一次加大尾矿治理力度,总是在发生严重的尾矿溃坝事故之后。而突击式的尾矿治理方式不太可能持久奏效。数量巨大的尾矿伴随着矿山的开采不断增加,随着矿山枯竭,经年累月贮存起来的尾矿被堆放于江岸的山坡,因在技术层面缺乏有效的处理方法,只能以非安全的暴
有关曼彻斯特码编码的正确叙述是(60)。
最新回复
(
0
)