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
2023-12-19
64
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 cat 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】______
or 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 file 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,这里应该是个假设关系,意为“我们如果没有了食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://tihaiku.com/zcyy/3286188.html
相关试题推荐
Walkingistheexerciseofchoiceformostdieters.Nowonder.Youdon’tneed
Walkingistheexerciseofchoiceformostdieters.Nowonder.Youdon’tneed
Walkingistheexerciseofchoiceformostdieters.Nowonder.Youdon’tneed
Walkingistheexerciseofchoiceformostdieters.Nowonder.Youdon’tneed
Planningtoleaseacarbecauseyoudon’tthinkyoucanaffordtobuy?Think
Passage1[br][originaltext]TheOlympicGamesshouldbetracedbacktothe
Passage1[originaltext]TheOlympicGamesshouldbetracedbacktotheancie
Whyshouldmankindexplorespace?Perhapsthebestreasonforexploringspac
Whyshouldmankindexplorespace?Perhapsthebestreasonforexploringspac
Whyshouldmankindexplorespace?Perhapsthebestreasonforexploringspac
随机试题
春天是我的第一个故乡。这绝非夸张的书面修辞,至少近几年来是如此。我真切感受到这个季节对我的强力控制。如果没有细致地深入春天,这一年就会留下黑洞
Clearly,ifwe______intheclasswemustcommunicatewithourclassmates.A、par
Whenyoustopsmoking,you’relikelytofeeltense,nervous,irritable,anx
[originaltext]M:IjustwonderwhyJanetneverbecomesanactressintheadvert
“指物论”是( )的思想。A.公孙龙 B.惠施 C.庄子 D.韩非子
在关系代数运算中,若对表1按(),可以得到表2。 A.商品号都进行选择运算
A.秦艽、白薇 B.龙胆草、黄芩 C.青蒿、黄芩 D.竹茹、藿香、白蔻仁
一个国家实行什么样的政治制度,走什么样的政治发展道路,必须与这个国家的国情和性质
()是指在不使用监视系统获取信息的情况下,根据飞行计划、无线电通信和雷达标图,对
架空线路工程中,电杆中心与路由中心线的左右偏差不应大于50mm;除终端杆以外,电
最新回复
(
0
)