首页
登录
职称英语
The gardens and fields of Britain were saved from a grim invasion this spring
The gardens and fields of Britain were saved from a grim invasion this spring
游客
2024-01-31
15
管理
问题
The gardens and fields of Britain were saved from a grim invasion this spring. Thanks to the sharp, late frosts of May, millions of giant Spanish slugs—which threatened to devastate plants across the country—were killed. But now experts fear that Spanish slugs—which was first spotted in East Anglia a year ago—may soon make an unwelcome return to our shores. They have decided to seek public help to spot a menace which one expert described as "a disaster waiting to happen".
A group of scientists led by Dr. Ian Bedford, head of entomology (昆虫学) at the John Innes Centre, Norwich, have created a "slugwatch" website, so people can report where and when they have seen Spanish slugs. There will also be instructions on building traps to catch them. "The Spanish slug is a voracious predator. It eats crops spared by our native slugs, tolerates drier conditions, reproduces in greater numbers and even eats dead animals and excrement," said Bedford. " We want photos and sightings from members of the public to help build a picture of how widespread the Spanish slug is. The reports may also give us an idea of whether it is breeding with native species to form a hybrid with tolerance to frosts and cold from our own species."
The species appeared in Scandinavia a few years ago, where they bred so quickly that squashed slugs on roads became a serious traffic hazard. Very soon, it looked as if Britain would follow suit. "In early spring, numbers of the slugs began to appear and it looked as if we were in trouble," said Bedford. "But the late spring frosts seemed to have killed off baby Spanish slugs and saved us—for the time being."
Scientists stress that slugs play an important role in the ecosystem: they are natural composters, breaking down vegetation, and provide food for our hedgehogs, toads and some garden birds. However, the Spanish slug could prove to be an even greater threat. "We need to know exactly how they are distributed and that is why we have set up this website," saidBedford. " We need public help, badly." [br] Why did the expert say "a disaster waiting to happen" (Para. 1) ?
选项
A、A large area of plants across the country will be killed.
B、Millions of giant Spanish slugs return to shores.
C、Spanish slugs can reproduce in greater numbers.
D、Spanish slugs will breed with native species to form a hybrid with tolerance to frosts and cold.
答案
B
解析
作者在文章第一段阐述了“今春英国的众多花园和田地得以幸免于一场生物灾难。这多亏了五月末的寒霜,数以万计的足够摧毁全国植物的西班牙蛞蝓被冻死。但是现在专家们担心这些一年前在英格兰东部地区首次被发现的西班牙蛞蝓会卷土重来、肆虐英国”,所以最后一句描述“a disaster waiting to happen”主要是指西班牙蛞蝓可能很快回归英国,对整个国家的植物造成威胁。
转载请注明原文地址:https://tihaiku.com/zcyy/3408705.html
相关试题推荐
春节是中国最重要的节日。观看春节联欢晚会(theSpringFestivalGala)是中国人庆祝春节的一个重要组成部分。这个一年一度的晚会由中央
在中国,风筝具有独特的艺术价值。风筝首先出现在春秋时代(theSpringandAutumnPeriod)的战争中。随着时代的发展,现在风筝已成
春节(SpringFestival)是中国最重要的节日,是为了庆祝农历的新年。中国的春节期间,人们会遵守很多习俗。春节的前一天晚上,一家人通常聚在一起
在中国,风筝具有独特的艺术价值。风筝首先出现在春秋时代(theSpringandAutumnPeriod)的战争中。随着时代的发展,现在风筝已成
春节期间,人们挨家挨户去扭秧歌,庆祝新年的到来并传承老一辈传统。DuringtheSpringFestival,peoplewentfromhou
[originaltext]DeepSpringsisanAmericancollege.Itisanunusualcollege
[originaltext]DeepSpringsisanAmericancollege.Itisanunusualcollege
[originaltext]DeepSpringsisanAmericancollege.Itisanunusualcollege
[originaltext]CrimeisaseriousprobleminBritain.Onesortofcrimewhich
ThegardensandfieldsofBritainweresavedfromagriminvasionthisspring
随机试题
Afterall,thatdreadfulaspectofthethingneverreallytookholdofme;I
TheFinancierwaswrittenby()A.MarkT
屏气发作多见于A、0~2个月 B、2~4个月 C、4~6个月 D、6~10
患者,男,32岁,外生殖器或肛门等处出现疣状赘生物,色灰或褐或淡红,质软,表面秽
制定教学评价标准的依据是()。A.教学目标 B.课程目标 C.教学能力
关于结核分枝杆菌的生物学性状,哪项是错误的?( )A.抗酸染色阳性,细长、稍弯
发起人的出资方式有()。A:货币B:实物C:知识产权D:土地使用权
肾病综合征患者发生血栓最常见的部位是A.肾静脉 B.冠状血管 C.下肢静脉
人工流产负压吸宫术适用于妊娠时间最多不超过A.妊娠6周 B.妊娠8周 C.妊
最新回复
(
0
)