Words & phrases
呼吸
hū xī
breathe; breathing
展板
zhǎn bǎn
information display
Model sentences
海洋里生活着各种各样的动物。
hǎi yáng lǐ shēng huó zhe gè zhǒng gè yàng de dòng wù。
Many different kinds of animals live in the ocean.
母海龟可能游很远，回到产卵的沙滩。
mǔ hǎi guī kě néng yóu hěn yuǎn， huí dào chǎn luǎn de shā tān。
Female sea turtles may swim long distances back to their nesting beaches.
海豚是用肺呼吸的哺乳动物。
hǎi tún shì yòng fèi hū xī de bǔ rǔ dòng wù。
Dolphins are mammals that breathe with lungs.
大多数鱼用鳃从水中获得氧气。
dà duō shù yú yòng sāi cóng shuǐ zhōng huò dé yǎng qì。
Most fish use gills to obtain oxygen from water.
海龟浮到水面呼吸以后又潜下去。
hǎi guī fú dào shuǐ miàn hū xī yǐ hòu yòu qián xià qù。
The sea turtle surfaces to breathe and then dives again.
展板上的图帮助我们比较不同动物。
zhǎn bǎn shàng de tú bāng zhù wǒ men bǐ jiào bù tóng dòng wù。
The diagram on the display board helps us compare different animals.
海洋世界
海面下，有许多不同的动物。鱼群穿过水草，海龟摆动四肢，海豚又忽然来到水面，呼出空气，再转身游回水里。它们都能游泳，身体却各有不同。
hǎi miàn xià， yǒu xǔ duō bù tóng de dòng wù。 yú qún chuān guò shuǐ cǎo， hǎi guī bǎi dòng sì zhī， hǎi tún yòu hū rán lái dào shuǐ miàn， hū chū kōng qì， zài zhuǎn shēn yóu huí shuǐ lǐ。 tā men dōu néng yóu yǒng， shēn tǐ què gè yǒu bù tóng。
Many animals live beneath the sea. Fish pass through plants, turtles move their flippers and dolphins surface to breathe before diving again. They all swim but have different bodies.
鱼通常用鳃从水中获取氧气，身体两侧和尾部的鳍帮助移动。小鱼一齐转弯时，银色的身体闪动，好像水里忽然亮起许多小灯。
yú tōng cháng yòng sāi cóng shuǐ zhōng huò qǔ yǎng qì， shēn tǐ liǎng cè hé wěi bù de qí bāng zhù yí dòng。 xiǎo yú yī qí zhuǎn wān shí， yín sè de shēn tǐ shǎn dòng， hǎo xiàng shuǐ lǐ hū rán liàng qǐ xǔ duō xiǎo dēng。
Fish usually obtain oxygen from water through gills and move using fins. Turning together, small fish flash like lights in the water.
海豚是哺乳动物，需要呼吸空气。它游到水面，把呼吸孔露出来，完成呼吸以后，又潜下去。幼小的海豚出生后，也要跟着妈妈及时来到水面。
hǎi tún shì bǔ rǔ dòng wù， xū yào hū xī kōng qì。 tā yóu dào shuǐ miàn， bǎ hū xī kǒng lù chū lái， wán chéng hū xī yǐ hòu， yòu qián xià qù。 yòu xiǎo de hǎi tún chū shēng hòu， yě yào gēn zhe mā ma jí shí lái dào shuǐ miàn。
Dolphins are mammals that breathe air. They bring their blowholes above water and then dive again. Young dolphins must also reach the surface to breathe.
海龟同样需要空气，却有与海豚不同的身体。它的背上有壳，四肢适合在水中划动。到了产卵的时候，母海龟会爬上合适的沙滩。
hǎi guī tóng yàng xū yào kōng qì， què yǒu yǔ hǎi tún bù tóng de shēn tǐ。 tā de bèi shàng yǒu ké， sì zhī shì hé zài shuǐ zhōng huà dòng。 dào le chǎn luǎn de shí hou， mǔ hǎi guī huì pá shàng hé shì de shā tān。
Turtles also breathe air, but their bodies differ from dolphins'. They have shells and limbs suited to swimming. Females come onto suitable beaches to lay eggs.
海洋不只是开阔的水面，下面还有不同的环境。有的地方阳光容易照到，有的地方很深，光很少；礁石、水草和沙地，又给动物不同的藏身和觅食场所。
hǎi yáng bù zhǐ shì kāi kuò de shuǐ miàn， xià miàn hái yǒu bù tóng de huán jìng。 yǒu de dì fang yáng guāng róng yì zhào dào， yǒu de dì fang hěn shēn， guāng hěn shǎo； jiāo shí、 shuǐ cǎo hé shā dì， yòu gěi dòng wù bù tóng de cáng shēn hé mì shí chǎng suǒ。
The sea contains varied environments. Some receive sunlight and others are deep and dark. Reefs, plants and sand provide different shelter and feeding places.
一条小鱼藏进石缝，大一些的鱼从旁边游过，没有发现它。海龟继续慢慢向前，海豚的身影却已经远去，同一片水里同时发生着不同的事情。
yì tiáo xiǎo yú cáng jìn shí fèng， dà yī xiē de yú cóng páng biān yóu guò， méi yǒu fā xiàn tā。 hǎi guī jì xù màn màn xiàng qián， hǎi tún de shēn yǐng què yǐ jīng yuǎn qù， tóng yí piàn shuǐ lǐ tóng shí fā shēng zhe bù tóng de shì qíng。
A small fish hides in a crack as a larger one passes without noticing. A turtle moves slowly while a dolphin disappears into the distance. Different lives unfold together.
漂到海里的垃圾可能影响这些生活。塑料袋和其他废弃物留在水中，会给动物带来危险。岸上的人减少垃圾、妥善处理废物，也是在照顾水下的世界。
piāo dào hǎi lǐ de lā jī kě néng yǐng xiǎng zhè xiē shēng huó。 sù liào dài hé qí tā fèi qì wù liú zài shuǐ zhōng， huì gěi dòng wù dài lái wēi xiǎn。 àn shàng de rén jiǎn shǎo lā jī、 tuǒ shàn chǔ lǐ fèi wù， yě shì zài zhào gù shuǐ xià de shì jiè。
Rubbish reaching the sea can harm these lives. Plastic bags and other waste pose dangers, so reducing and properly disposing of waste on shore helps the underwater world.
Conversation
A 海豚是不是鱼？
hǎi tún shì bú shì yú？
Are dolphins fish?
B 不是，它们是哺乳动物。
bú shì， tā men shì bǔ rǔ dòng wù。
No. They are mammals.
A 鱼和海豚的呼吸有什么不同？
yú hé hǎi tún de hū xī yǒu shén me bù tóng？
How does breathing differ between fish and dolphins?
B 鱼通常用鳃，海豚需要到水面呼吸空气。
yú tōng cháng yòng sāi， hǎi tún xū yào dào shuǐ miàn hū xī kōng qì。
Fish generally use gills; dolphins need to breathe air at the surface.
A 海龟也需要空气吗？
hǎi guī yě xū yào kōng qì ma？
Do sea turtles also need air?
B 需要，不能因为它在水里游就把它当成鱼。
xū yào， bù néng yīn wèi tā zài shuǐ lǐ yóu jiù bǎ tā dàng chéng yú。
Yes. Swimming in water does not make an animal a fish.
