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
Write NO MORE THAN TWO WORDS AND/OR A NUMBER for each answer. Monarch Butterflies Hibernation Butterfly species adopt different
Write NO MORE THAN TWO WORDS AND/OR A NUMBER for each answer. Monarch Butterflies Hibernation Butterfly species adopt different
admin
2022-03-08
98
问题
Write NO MORE THAN TWO WORDS AND/OR A NUMBER for each answer.
Monarch Butterflies
Hibernation
Butterfly species adopt different hibernation patterns during their life cycle.
Butterflies named ’Banded Hair Freak’ hibernate in the form of an【L31】________
A species called ’Dapple White’ accumulates【L32】________from larval stage.
Slow metabolism can help them to sort out some problems in winter.
A substance is produced in the blood which may function as【L33】________
There are few predators because they can only survive in【L34】________weather.
Migration
Monarch butterflies move to【L35】________in winter.
To avoid cold temperature, they migrate to the south in large groups.
The survival skill can help them last for up to【L36】________during a long journey.
Monarch butterflies fly in the daytime and stay in【L37】________during night.
Researchers found out that they orient by flying along the【L38】________
They also follow the direction of the【L39】________for navigational aid.
During migration, they mainly feed on flowers and cannot reproduce.
Recently the annual arrival of the monarchs can be a good interest to【L40】________in the region.
【L40】
We were required to do the investigation regarding survival strategies of particular animals, and I chose to study how the butterflies will do for survival when cold weather and food shortage could easily influence their life cycle.
I concentrated on a number of main strategies butterflies adopt to handle these harsh conditions: hibernation, and migration.
First let’s talk about the hibernation, which means a long term sleep, in which an animal’s metabolism slows to conserve strength.
Various butterfly species have formed different patterns of hibernation, at continuous periods of their life cycle.
For example,
the ’Banded Hair Freak’ hardly hibernates in its full grown adult form, but as an egg. And another species, the ’Dappled White’, breathes during the winter in a crystallise stage, and during this time, it’s able to draw on the energy it stimulated earlier on in its larval stage.
Though the slowing of the metabolism in hibernation functions with many of the difficulties faced in winter, it can’t prevent them all.
In addition, some butterflies have extra plans for survival. For instance,
they develop a substance in their blood, usually in glycerol, or sorbitol, which serves as ’anti-freeze’, thereby adding extra resistance against lower temperatures.
Actually, there is a positive side to the cold weather, fewer predators exist to cause problems, this is because they are mainly active in warm weather.
So, now let’s move on to the second type of survival strategy the butterflies used in winter: migration. That means moving to regions with a more suitable environment.
I’m going to start this topic with a detailed study about particular cases of migratory species, the ’Monarch Butterfly’.
Many butterfly species found in various zones of the world migrate, like ’the Red Admiral’, a
British butterfly which ’winters’ in North Africa, but the ’Monarch Butterfly’ is the sole example to do this in North America.
At any stage of the life cycle, the Monarch cannot survive in the low winter temperatures, so when it gets cold, the Monarchs begin to gather in huge groups and fly south. They can travel up to 3,500 miles.
But only the last summer generation of Monarchs migrate.
Normal generations only live for a maximum of 10 days, in fact the last migration generation, as reported, do for 6 months, which enables them to take such a long journey.
These huge teams of migrating monarchs only fly during daylight hours, and at night they usually have a rest in trees, again often in vast groups.
Research is now being done into what encourages them to reach the destination.
It has been known for years that they find their way on the journey by following rivers, and there are a few these along their migratory route. However, the new research indicates they may also treat the sun as a navigational aid.
During this time, they are able to feed, mainly from a type of flower called ’milkweed’, but they are not able to reproduce during this period.
The Monarchs ’hand in their lineage’ to a particular region in Mexico, known as the ’Pier A Sequoia’.
The Monarchs are anticipated with great interest within the region, and over recent years, there annual arrival has gained great popularity among tourists.
However, their habitat is being increasingly threatened...
选项
答案
tourists
解析
定位句为“The Monarchs are anticipated with great interest within the region.and over recent years,there annual arrival has gained great popularity among tourists.”。本题中听力预判很重要,be a good interest to预示着空格中应该填写表示人群的名词,在听力过程中听到关键词和提示词后得知本题定位,之后听取符合空格词意的名词即可。
转载请注明原文地址:https://kaotiyun.com/show/Zk8O777K
本试题收录于:
雅思听力题库雅思(IELTS)分类
0
雅思听力
雅思(IELTS)
相关试题推荐
Neurologiststendtodividetheexperienceofloveintothreedistinctcategories:attraction,lustandattachment.Thecombinat
Neurologiststendtodividetheexperienceofloveintothreedistinctcategories:attraction,lustandattachment.Thecombinat
CompletethesummarybelowwithwordstakenfromReadingPassage2.UseNOMORETHANTWOWORDSforeachanswer.Writeyo
ChooseTHREEletters,A-G.Writeyouranswersinboxes7-9onyouranswersheet.WhichTHREEofthefollowingsevenpiec
Lookatthefollowingstatements(Questions33-40)andthelistofpeopleintheboxbelow.Matcheachstatementwiththecor
Completeeachsentencewiththecorrectending,A-J,below.Writethecorrectletter,A-J,inboxes20-24onyouranswershe
Labelthediagrambelow.ChooseNOMORETHANTWOWORDSfromthetextforeachanswer.Writeyouranswersinboxes7-13o
Completethenotesbelow.ChooseNOMORETHANTWOWORDSfromthepassageforeachanswer.Writeyouranswersinboxes36
随机试题
不在肝十二指肠韧带内的结构是()
根据安全生产标准内容的分类,对防护服装机械性能、材料抗刺穿性及动态撕裂性的试验标准,属于()。
会计机构内部稽核制度包括哪些内容?
公司在其股票暂停上市期间,仍然具有履行信息披露的义务。( ).
关于无效民事行为与可撤销的民事行为的联系和区别,下列表述错误的是()。
根据《中华人民共和国民法通则》的有关规定,下列选项中,适用于诉讼时效期间为一年的情形有()。
城乡一体化有利于创造经济的最大增长空间,拉动农牧区居民的消费需求和投资要求,避免“农村病”和“城市病”,保障经济社会的可持续发展。由此可见,推动城乡发展一体化是()。①我国有效扩大内需的根本方略②提高生产力和综合国力的战略支撑
立案是我国刑事诉讼的一个独立程序,是刑事诉讼活动的开始,表明公安机关的侦查活动有了合法的依据。()
请在成语“见多识广”的基础上。再补充两个成语,以大学生自主创业为主题。结合新农村建设讲一个故事。
NowI______toworkbybikeinsteadofbycarastherearetoomanycarsontheroadinrushhours.
最新回复
(
0
)