首页
登录
职称英语
Why, you may wonder, should spiders be our friends? Because they protect so
Why, you may wonder, should spiders be our friends? Because they protect so
游客
2023-12-14
9
管理
问题
Why, you may wonder, should spiders be our friends?
Because they protect so many insects,and insects include 【M1】______
some of the greatest enemies of the human race. Insects
would make impossible for us to live in the world; they 【M2】______
would ruin all our crops and kill our flocks and herds,
as it were not for the protection we get from insect 【M3】______
- eating animals. We owe a lot for the birds and beasts 【M4】______
who eat insects but all of them put together kill only
a fraction of the amount destroyed by spiders. Moreover, 【M5】______
unlike some of the insect - eaters, spiders never make 【M6】______
the least harm to us or our belongings.
Spiders are not insects, as many people think, and 【M7】______
nor even nearly related to them. One can tell the difference
almost at a glance, for a spider always has eight
legs but an insect never more than six.
How many spiders are joined in this work on our 【M8】______
behalf? One authority on spiders made a census
of the spiders in a grass field in the south of
England, and he estimated that there were more
than 2,250,000 in one acre; that is anything 【M9】______
like 6,000,000 spiders of different kinds on
a football pitch. Spiders are busy least
half the year in killing insects. It has been
estimated that the weight of all the insects
destroyed by spiders in Britain in one year would
be greater than those of all the human beings 【M10】______
in the country. [br] 【M3】
选项
答案
as: if
解析
根据上下文,这里应该是个似设关系,意为“我们如果没有了食有害昆虫动物的保护的话,昆虫便会毁了我们的庄稼和牲畜。”所以这里用if才符合原文之意。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3271929.html
相关试题推荐
Ablindbabyisdoublyhandicapped.Notonlyisitunabletosee,butbecause
Ablindbabyisdoublyhandicapped.Notonlyisitunabletosee,butbecause
Ablindbabyisdoublyhandicapped.Notonlyisitunabletosee,butbecause
Ablindbabyisdoublyhandicapped.Notonlyisitunabletosee,butbecause
Becausemarketsareoftenunpredictable,successfulmarketingisratherlike
Havingsaidailofthis,Ishould,perhaps,locatemyself.Iteachandwrite
[originaltext]TomHanks,JuliaRoberts,ERandFriendsweresomeofthebig
Lastyear’seconomyshouldhavewontheOscarforbestpicture.Growthingro
Lastyear’seconomyshouldhavewontheOscarforbestpicture.Growthingro
Lastyear’seconomyshouldhavewontheOscarforbestpicture.Growthingro
随机试题
天未下雪,但叶落草枯。Therewasnosnow,theleavesweregone,thegrasswasdead.树叶从树上掉落,这
[originaltext]Inthenextfewdecades,peoplearegoingtotravelverydiff
会计人员在下列行为中,违反会计法律制度的有()。A.会计人员小王上班经常迟到旱退
下列哪一项不属于自助具A.轮椅 B.穿衣棍 C.平台杖 D.轮椅夹杯及台面
关于风险的描述不正确的是()。A.具有不确定性的事件或活动也不一定是风险
下列电气保护系统中,属于PE保护接零的是( )。A.IT系统 B.TT系统
5岁半女孩,自半岁起青紫,逐渐加重,哭后明显,有昏厥、抽搐史。体检:胸骨左缘第3
属于慢作用抗风湿药的是:A.MTX B.IFN-γ C.戴芬 D.
A.80 B.100 C.120 D.150
课外活动不包括()。
最新回复
(
0
)