晨读英语美文60篇六级53
时间：2019-01-02 作者：英语课 分类：晨读英语美文60篇
[00:00.00]Seahorse Fathers Take Reins 1 in Childbirth
[00:04.96]It’s true that male seahorses never play catch with their children
[00:11.31]or help them with their homework.
[00:13.28]But they do outdo human dads on one count.
[00:16.89]Male seahorses undergo pregnancy 2 and give birth to their sons and daughters.
[00:23.00]The trait is unique in these strange and fascinating fish
[00:26.07]that inhabit tropical and temperate 3 coastal 4 waters worldwide.
[00:30.00]Seahorses, which range from less than an inch to a foot in length,
[00:35.04]have evolved a series of unusual adaptations.
[00:38.33]They are such an unusual looking fish that
[00:41.61]people sometimes don’t realize they’re real fish.
[00:44.88]The male seahorse has a pouch 5 on its stomach in which to carry babies—
[00:49.80]as many as 2000 at a time.
[00:52.77]A pregnancy lasts from 10 to 25 days depending on the species.
[00:57.96]The reproductive process begins
[01:00.47]when a male and a female seahorse do daily predawn dances
[01:05.29]intertwining their tails and swimming together.
[01:08.25]Eventually they engage in a true courtship dance,
[01:12.29]which can last as long as eight hours.
[01:15.02]It ends with the female depositing her eggs in the male’s pouch.
[01:19.39]The eggs hatch in the pouch.
[01:21.81]The father cares for the young
[01:23.57]as they grow regulating the water salinity 6 in the pouch to prepare them for life in the sea.
[01:29.78]When the tiny seahorses are ready to be born the male undergoes muscular contractions 7
[01:36.35]to expel the young known as “fry” from the pouch.
[01:39.95]While seahorse dads go the extra mile to give birth
[01:43.68]the parents do not provide their tiny offspring with any care or protection
[01:48.93]after they are born.
[01:50.34]Infant seahorses are susceptible 8 to death from predators 9
[01:54.30]and being swept into ocean currents
[01:56.69]where they drift away from feeding grounds rich in microscopic 10 organisms.
[02:01.39]Fewer than five infant seahorses in every 1000 survive to adulthood 11
[02:06.76]which helps explain why the litters are so large.
- She pulled gently on the reins. 她轻轻地拉着缰绳。
- The government has imposed strict reins on the import of luxury goods. 政府对奢侈品的进口有严格的控制手段。
- Early pregnancy is often accompanied by nausea.怀孕早期常有恶心的现象。
- Smoking during pregnancy increases the risk of miscarriage.怀孕期吸烟会增加流产的危险。
- Asia extends across the frigid,temperate and tropical zones.亚洲地跨寒、温、热三带。
- Great Britain has a temperate climate.英国气候温和。
- The ocean waves are slowly eating away the coastal rocks.大海的波浪慢慢地侵蚀着岸边的岩石。
- This country will fortify the coastal areas.该国将加强沿海地区的防御。
- He was going to make a tobacco pouch out of them. 他要用它们缝制一个烟草袋。
- The old man is always carrying a tobacco pouch with him.这老汉总是随身带着烟袋。
- In the sea water sampled the salinity is two parts per thousand.在取样的海水中，盐度为千分之二。
- In many sedimentary basins the salinity of the formation water increases with depth or compaction.在许多沉积盆地中，地层水的含盐量随深度或压实作用而增高。
- Contractions are much more common in speech than in writing. 缩略词在口语里比在书写中常见得多。 来自《简明英汉词典》
- Muscle contractions are powered by the chemical adenosine triphosphate(ATP ). 肌肉收缩是由化学物质三磷酸腺苷(ATP)提供动力的。 来自辞典例句
- Children are more susceptible than adults.孩子比成人易受感动。
- We are all susceptible to advertising.我们都易受广告的影响。
- birds and their earthbound predators 鸟和地面上捕食它们的动物
- The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》
- It's impossible to read his microscopic handwriting.不可能看清他那极小的书写字迹。
- A plant's lungs are the microscopic pores in its leaves.植物的肺就是其叶片上微细的气孔。