英语听力：自然百科探索世界奥秘之Wild Africa - Deserts(浩瀚沙漠) Unit07

In spring , the desert undergoes a remarkable¹ transformation².

For just a few weeks a year, the flowers of over 3, 000 different plant species turn this desert into the Garden of Africa.

This dazzling variety of color has evolved over time for a very special purpose -- for plants to seduce³ their insect pollinators.

Some extraordinary relationships have been forged. The bright purple blossoms of Lapeirousia are designed purely⁴ to attract the fly with the longest tongue in Africa. As the fly probes for a sip⁵ of nectar in the long floral tubes, pollen⁶ is dabbed⁷ onto its forehead. A smart design, but on a windy day, it's not so easy to hit the target.

Diascia flowers use not nectar but nutritious⁸ oils secreted⁹ by glands¹⁰ at the tips of their floral tubes to tempt¹¹ pollinators. Flower and bee, in this case, a perfect fit as the insect dips its toes for oil.

Ignited by the rain, the flowering of the Karoo touches the lives of all its inhabitants. Brandt's whistling rats are quick to harvest the blossoms around their burrows¹².

These desert rats time their breeding to the birth of fresh food, but with snakes around, mothers can't risk leaving their youngsters at home. Clinging to her nipples, they're carried along, a sort of meals on wheels.

words and expression:

1.pollinator:animals or objects that can pollinate授粉者

2.lapeirousia

3.nectar:a sweet liquid secretion¹³ that is attractive to pollinators 花蜜

4.dab:apply (usually a liquid) to a surface轻拍

(eg.)dab the wall with paint,dab cheek with rouge¹⁴

5.diascia

6.gland:An organ which secretes¹⁵ or separates some peculiar¹⁶ product from the blood or sap of animals or plants胰腺，腺体

7.nipple:In anatomy¹⁷, the small raised area in the center of the breast through which milk can flow to the outside乳头

8.meals on wheels:Meals on Wheels is the name of a nutrition program available in several countries which delivers a meal to the home of an individual, usually a senior age 60 or older, who is unable to purchase or prepare meals themself上门送餐服务

illustration:lapeirousia and diascia

1 remarkable   

adj.显著的，异常的，非凡的，值得注意的

参考例句：

• She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
• These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。

2 transformation   

n.变化；改造；转变

参考例句：

• Going to college brought about a dramatic transformation in her outlook.上大学使她的观念发生了巨大的变化。
• He was struggling to make the transformation from single man to responsible husband.他正在努力使自己由单身汉变为可靠的丈夫。

3 seduce   

vt.勾引，诱奸，诱惑，引诱

参考例句：

• She has set out to seduce Stephen.她已经开始勾引斯蒂芬了。
• Clever advertising would seduce more people into smoking.巧妙策划的广告会引诱更多的人吸烟。

4 purely   

adv.纯粹地，完全地

参考例句：

• I helped him purely and simply out of friendship.我帮他纯粹是出于友情。
• This disproves the theory that children are purely imitative.这证明认为儿童只会单纯地模仿的理论是站不住脚的。

5 sip   

v.小口地喝，抿，呷；n.一小口的量

参考例句：

• She took a sip of the cocktail.她啜饮一口鸡尾酒。
• Elizabeth took a sip of the hot coffee.伊丽莎白呷了一口热咖啡。

6 pollen   

n.[植]花粉

参考例句：

• Hummingbirds have discovered that nectar and pollen are very nutritious.蜂鸟发现花蜜和花粉是很有营养的。
• He developed an allergy to pollen.他对花粉过敏。

7 dabbed   

（用某物）轻触( dab的过去式和过去分词 )； 轻而快地擦掉（或抹掉）； 快速擦拭； （用某物）轻而快地涂上（或点上）…

参考例句：

• She dabbed her eyes and blew her nose. 她轻轻擦了几下眼睛，擤了擤鼻涕。
• He dabbed at the spot on his tie with a napkin. 他用餐巾快速擦去领带上的污点。

8 nutritious   

adj.有营养的，营养价值高的

参考例句：

• Fresh vegetables are very nutritious.新鲜蔬菜富于营养。
• Hummingbirds have discovered that nectar and pollen are very nutritious.蜂鸟发现花蜜和花粉是很有营养的。

9 secreted   

v.（尤指动物或植物器官）分泌( secrete的过去式和过去分词 )；隐匿，隐藏

参考例句：

• Insulin is secreted by the pancreas. 胰岛素是胰腺分泌的。
• He secreted his winnings in a drawer. 他把赢来的钱藏在抽届里。 来自《简明英汉词典》

10 glands   

n.腺( gland的名词复数 )

参考例句：

• a snake's poison glands 蛇的毒腺
• the sebaceous glands in the skin 皮脂腺

11 tempt   

vt.引诱，勾引，吸引，引起…的兴趣

参考例句：

• Nothing could tempt him to such a course of action.什么都不能诱使他去那样做。
• The fact that she had become wealthy did not tempt her to alter her frugal way of life.她有钱了，可这丝毫没能让她改变节俭的生活习惯。

12 burrows   

n.地洞( burrow的名词复数 )v.挖掘（洞穴），挖洞( burrow的第三人称单数 )；翻寻

参考例句：

• The intertidal beach unit contains some organism burrows. 潮间海滩单元含有一些生物潜穴。 来自辞典例句
• A mole burrows its way through the ground. 鼹鼠会在地下钻洞前进。 来自辞典例句

13 secretion   

n.分泌

参考例句：

• Is there much secretion from your eyes?你眼里的分泌物多吗？
• In addition,excessive secretion of oil,water scarcity are also major factors.除此之外，油脂分泌过盛、缺水也都是主要因素。

14 rouge   

n.胭脂，口红唇膏；v.(在…上)擦口红

参考例句：

• Women put rouge on their cheeks to make their faces pretty.女人往面颊上涂胭脂，使脸更漂亮。
• She didn't need any powder or lip rouge to make her pretty.她天生漂亮，不需要任何脂粉唇膏打扮自己。

15 secretes   

v.（尤指动物或植物器官）分泌( secrete的第三人称单数 )；隐匿，隐藏

参考例句：

• The pineal gland secretes melanin during times of relaxation and visualization. 松果体在放松时分泌黑色素是明白无误的。 来自互联网
• For example, the archegonium (female organ) of the moss Funaria secretes sucrose. 例如藓类颈卵器（雌性器官）分泌蔗糖。 来自互联网

16 peculiar   

adj.古怪的，异常的；特殊的，特有的

参考例句：

• He walks in a peculiar fashion.他走路的样子很奇特。
• He looked at me with a very peculiar expression.他用一种很奇怪的表情看着我。

17 anatomy   

n.解剖学，解剖；功能，结构，组织

参考例句：

• He found out a great deal about the anatomy of animals.在动物解剖学方面，他有过许多发现。
• The hurricane's anatomy was powerful and complex.对飓风的剖析是一项庞大而复杂的工作。