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
59
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.
【L31】
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
egg
解析
定位句为“…the ‘Banded Hair Freak’ hardly hibernates in its full grown adult form,but as an egg.”。本题定位词为特殊定位词,在听力中较容易捕捉,需要注意的是提示词form之后需填写表示形式的名词;且在听力定位句中出现干扰信息,重点需要注意逻辑连接词but的功能。
转载请注明原文地址:https://kaotiyun.com/show/Ej8O777K
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
Neurologiststendtodividetheexperienceofloveintothreedistinctcategories:attraction,lustandattachment.Thecombinat
Lookatthefollowingstatements(Questions33-40)andthelistofpeopleintheboxbelow.Matcheachstatementwiththecor
ChooseTWOlettersA-E.Writeyouranswersinboxes25-26onyouranswersheet.WhichTWOofthefollowingstatementsfo
Completeeachsentencewiththecorrectending,A-J,below.Writethecorrectletter,A-J,inboxes20-24onyouranswershe
Completethediagrambelow.ChoosethecorrectletterA-Efromtheboxbelow.Writeyouranswersinboxes19-23onyour
Completethediagrambelow.ChoosethecorrectletterA-Efromtheboxbelow.Writeyouranswersinboxes19-23onyour
Labelthediagrambelow.ChooseNOMORETHANTWOWORDSfromthetextforeachanswer.Writeyouranswersinboxes7-13o
Labelthediagrambelow.ChooseNOMORETHANTWOWORDSfromthetextforeachanswer.Writeyouranswersinboxes7-13o
随机试题
在我国,严格的质量控制首先是在______产品上应用的()
急性颅脑损伤在何种情况下切忌腰穿______。
抗毒素是
猩红热的预防措施,下列错误的是
市场风险分为()。
预防残疾的体系中,一级预防包括()。
成熟曲线反映的是()报酬与工作年限之间的关系。
从头开始是人生经常可能遇到的境况。大至地震、战争、国破家亡、死里逃生、事业一败涂地。小至丧偶、失恋、经济破产、钱财被窃、身上一文不名,凡此种种,皆会使你不同程度地产生一种废墟感。当此之时,最健康的心态便是忘掉你曾经拥有的一切,忘掉你所遭受的损失,就当你是赤
2
"Properwordsinproperplaces,makesthetruedefinitionsofastyle"isafamousremarkmadeby
最新回复
(
0
)