英語流利說Level4 Unit3 Part3 Listening:Honey Bee Pollination&Colony Collapse

Honey Bee Pollination

Honeybees play an interesting and important role in nature.

In addition to making honey, honeybees help many plants reproduce.

They do this by?pollinating?the plant, which means to transfer?pollen.

Pollination occurs when pollen is moved within a plant's flower or carried to another flower.

This is how the plants reproduce.

For reproduction to succeed, the pollen must be transferred from the male part of a flower to the female part.


Pollination is how some plants reproduce.


Many plants depend on pollination for reproduction.

These include many fruits and vegetables.

Besides honeybees, there are many other pollinators, including birds, insects and other kinds of bees.

Without enough pollinators, many of our favorite fruits and vegetables would become more expensive and hard to find.

These include?almond?and cherries.


What do many plants depend on to reproduction? pollination

Besides honeybees what are some other pollinators? birds and insects


Honeybees are important pollinators and play an important role in agriculture.

Beekeepers?are people who keep honeybees.

In addition to collecting honey, some beekeepers provide pollination services to farmers.

They do this by raising and managing?colonies?of bees.

Farmers need the colonies to pollinate their crops.

Beekeepers can provide and manage bee colonies for farmers.


Whet service did some bee keepers provide to famers? pollination service

Honeybees play an?interesting and important role in nature.

Beekeepers are people who keep honeybees.


Honey bees are social insects that live in colonies.

A bee colony consists of a queen bee, male?drones?and thousand of female worker bees.

Each colony also contains eggs and?immature?bees in various stages of development.

The number of bees within a colony depends on seasonal changes.

A colony's population increases during the warm seasons and decreases during colder seasons.


In recent years, many bee colonies have collapsed, or disappeared.

A bee colony collapse occurs when a majority of the bees in a colony disappear and leave behind the queen.

Some beekeepers have reported losing 30 to 90 percent of their colonies.

This loss of bee colonies can cause significant problems for farmers who depend on them to pollinate their crops.

In some parts of the world, a?shortage?of bees has increased the cost of renting bees by up to 20%.


What has increase the cost of renting bees in some parts of the world? a shortage of bees


There are several possible causes for bee colony collapse.

One possible cause is the use of new?pesticides.

Other possible causes include infections from viruses, genetic factors, and?malnutrition.

Changing weather?patterns?may also play a role as summers get hotter and winters get colder.

These changes in weather may weaken the bees, making it more difficult for them to fight infections.


What may make it more difficult for bees to fight infections? changing weather conditions


Whatever the cause of colony collapse, it's important to understand that many parts of our world are?interdependent.

Changes that affect one species may have serious effects on other species.

A change to our environment can start a chain of events that is difficult to predict.

In any complex system such as the Earth's environment, small changes can have?unforeseen?consequences.

The danger of unforeseen consequences is something we all need to understand better.


Things that are interdependent depend on each other.

In recent years, many bee colonies?have?collapsed, or?disappeared.

This loss?of bee colonies can cause significant problems for farmers who depend on them to pollinate their crops.


Colony Collapse

Honey bees are social insects that live in colonies.

A bee colony consists of a queen bee, male?drones?and thousands of female worker bees.

Each colony also contains eggs and?immature?bees in various stages of development.

The number of bees within a colony depends on seasonal changes.

A colony's population increases during the warm seasons and decreases during colder seasons.


In recent years, many bee colonies have collapsed, or disappeared.

A bee colony collapse occurs when a majority of the bees in a colony disappear and leave behind the queen.

Some beekeepers have reported losing 30 to 90 percent of their colonies.

This loss of bee colonies can cause significant problems for farmers who depend on them to pollinate their crops.

In some parts of the world a?shortage?of bees has increased the cost of renting bees by up to 20%.


What has increase the cost of renting bees in some parts of the world? a shortage of bees


There are several possible causes for bee colony collapse.

One possible cause is the use of new pesticides.

Other possible causes include infections from viruses, genetic factors, and malnutrition.

Changing weather patterns?may also play a role as summers get hotter and winters get colder.

These changes in weather may weaken the bees, making it more difficult for them to fight infections.


What may make it more difficult for bees to fight infections? change in weather condition


Whatever the cause of colony collapse, it's important to understand that many parts of our world are?interdependent.

Changes that affect one species may have serious effects on other species.

A change to our environment can start a chain of events that is difficult to predict.

In any complex system such as the Earth's environment,small changes can have?unforeseen?consequences.

The danger of unforeseen consequences is something we all need to understand better.


Things that are interdependent are depend on each other.

The main idea here is: The Earth's environment is a complex system.

The number of bees?within?a?colony depends on?seasonal?changes.

最后編輯于
?著作權(quán)歸作者所有,轉(zhuǎn)載或內(nèi)容合作請聯(lián)系作者
  • 序言:七十年代末众弓,一起剝皮案震驚了整個濱河市漓雅,隨后出現(xiàn)的幾起案子,更是在濱河造成了極大的恐慌勉盅,老刑警劉巖蜕乡,帶你破解...
    沈念sama閱讀 210,914評論 6 490
  • 序言:濱河連續(xù)發(fā)生了三起死亡事件空民,死亡現(xiàn)場離奇詭異,居然都是意外死亡督怜,警方通過查閱死者的電腦和手機(jī)殴瘦,發(fā)現(xiàn)死者居然都...
    沈念sama閱讀 89,935評論 2 383
  • 文/潘曉璐 我一進(jìn)店門,熙熙樓的掌柜王于貴愁眉苦臉地迎上來号杠,“玉大人蚪腋,你說我怎么就攤上這事∫腆” “怎么了屉凯?”我有些...
    開封第一講書人閱讀 156,531評論 0 345
  • 文/不壞的土叔 我叫張陵,是天一觀的道長眼溶。 經(jīng)常有香客問我悠砚,道長,這世上最難降的妖魔是什么堂飞? 我笑而不...
    開封第一講書人閱讀 56,309評論 1 282
  • 正文 為了忘掉前任灌旧,我火速辦了婚禮,結(jié)果婚禮上绰筛,老公的妹妹穿的比我還像新娘枢泰。我一直安慰自己,他們只是感情好铝噩,可當(dāng)我...
    茶點(diǎn)故事閱讀 65,381評論 5 384
  • 文/花漫 我一把揭開白布衡蚂。 她就那樣靜靜地躺著,像睡著了一般骏庸。 火紅的嫁衣襯著肌膚如雪毛甲。 梳的紋絲不亂的頭發(fā)上,一...
    開封第一講書人閱讀 49,730評論 1 289
  • 那天具被,我揣著相機(jī)與錄音玻募,去河邊找鬼。 笑死一姿,一個胖子當(dāng)著我的面吹牛七咧,可吹牛的內(nèi)容都是我干的改执。 我是一名探鬼主播,決...
    沈念sama閱讀 38,882評論 3 404
  • 文/蒼蘭香墨 我猛地睜開眼坑雅,長吁一口氣:“原來是場噩夢啊……” “哼!你這毒婦竟也來了衬横?” 一聲冷哼從身側(cè)響起裹粤,我...
    開封第一講書人閱讀 37,643評論 0 266
  • 序言:老撾萬榮一對情侶失蹤,失蹤者是張志新(化名)和其女友劉穎蜂林,沒想到半個月后遥诉,有當(dāng)?shù)厝嗽跇淞掷锇l(fā)現(xiàn)了一具尸體,經(jīng)...
    沈念sama閱讀 44,095評論 1 303
  • 正文 獨(dú)居荒郊野嶺守林人離奇死亡噪叙,尸身上長有42處帶血的膿包…… 初始之章·張勛 以下內(nèi)容為張勛視角 年9月15日...
    茶點(diǎn)故事閱讀 36,448評論 2 325
  • 正文 我和宋清朗相戀三年矮锈,在試婚紗的時候發(fā)現(xiàn)自己被綠了。 大學(xué)時的朋友給我發(fā)了我未婚夫和他白月光在一起吃飯的照片睁蕾。...
    茶點(diǎn)故事閱讀 38,566評論 1 339
  • 序言:一個原本活蹦亂跳的男人離奇死亡苞笨,死狀恐怖,靈堂內(nèi)的尸體忽然破棺而出子眶,到底是詐尸還是另有隱情瀑凝,我是刑警寧澤,帶...
    沈念sama閱讀 34,253評論 4 328
  • 正文 年R本政府宣布臭杰,位于F島的核電站粤咪,受9級特大地震影響,放射性物質(zhì)發(fā)生泄漏渴杆。R本人自食惡果不足惜寥枝,卻給世界環(huán)境...
    茶點(diǎn)故事閱讀 39,829評論 3 312
  • 文/蒙蒙 一、第九天 我趴在偏房一處隱蔽的房頂上張望磁奖。 院中可真熱鬧囊拜,春花似錦、人聲如沸点寥。這莊子的主人今日做“春日...
    開封第一講書人閱讀 30,715評論 0 21
  • 文/蒼蘭香墨 我抬頭看了看天上的太陽敢辩。三九已至蔽莱,卻和暖如春,著一層夾襖步出監(jiān)牢的瞬間戚长,已是汗流浹背盗冷。 一陣腳步聲響...
    開封第一講書人閱讀 31,945評論 1 264
  • 我被黑心中介騙來泰國打工, 沒想到剛下飛機(jī)就差點(diǎn)兒被人妖公主榨干…… 1. 我叫王不留同廉,地道東北人仪糖。 一個月前我還...
    沈念sama閱讀 46,248評論 2 360
  • 正文 我出身青樓柑司,卻偏偏與公主長得像,于是被迫代替她去往敵國和親锅劝。 傳聞我的和親對象是個殘疾皇子攒驰,可洞房花燭夜當(dāng)晚...
    茶點(diǎn)故事閱讀 43,440評論 2 348

推薦閱讀更多精彩內(nèi)容

  • rljs by sennchi Timeline of History Part One The Cognitiv...
    sennchi閱讀 7,306評論 0 10
  • 本文轉(zhuǎn)載自知乎 作者:季子烏 筆記版權(quán)歸筆記作者所有 其中英文語句取自:英語流利說-懂你英語 ——————————...
    Danny_Edward閱讀 15,637評論 0 22
  • 早上六點(diǎn)準(zhǔn)時從高青上高速,一路奔波跑到廊坊文安下高速故爵,本來心情還可以玻粪,即便是已經(jīng)接到通知回去繼續(xù)京博裝車,工作嘛那...
    憶甜人生閱讀 247評論 0 2
  • 【問題反饋】 中學(xué)生默寫檢測中诬垂,學(xué)生容易丟分主要體現(xiàn)在6個方面劲室,包括字型不規(guī)范、同音字替換结窘、形近字混淆很洋,通假字寫錯...
    鹿鳴閣主閱讀 966評論 3 2
  • 最近,我們被這樣的圖片被刷屏隧枫,人類必須警醒喉磁。 由于全球變暖,善于游泳的北極熊會因?yàn)檎也坏阶銐虺休d自己體重的浮冰而被...
    阿飛fighting閱讀 106評論 0 0