霸占海洋的藻类Plants need sunlight to grow. What about the plants in the ocean? Many live only near the sea surface (海面). Some grow at the bottom (底部) of the sea. Land plants have roots (根). Ocean plants ……

PLANTS need sunlight to grow. What about the plants in the ocean? Many live only near the sea surface (表面). Some grow at the bottom of the sea. Land plants have roots. Ocean plants without roots1 ……

% of the Earth’s surface (表面). Under the ocean there are many kinds of amazing animals and plants. Let... (珠穆朗玛峰).Atlantic Ocean大西洋的海水最咸It is the second largest ocean in the world. It is like the letter ……

. Plants, algae (藻类), and some bacteria (细菌) in the ocean can make oxygen. Also, the ocean takes in 50... (肺). It makes over half of the world’s oxygen. Plants, algae (藻类), and some bacteria (细菌 ……

of the ocean’s animals and plants. They test how warm and clear the water is. They also find ship or plane...潜入深海，发现蔚蓝世界的奥秘！ Seen from outer space, Earth is a blue planet (星球). This is because the ocean ……

swim down to see the fish and plants. We'll have fun in three ocean parks (海洋公园). Let's go! The Earth...在) oceans and rivers. About 80% of the world's people live near the sea.The biggestPacific Ocean太平 ……

animals and plants.More than 275,000 kinds of fish and other animals live in the ocean. Most of them... and the food we eatThere are five oceans in the world — thePacific Ocean(太平洋),Atlantic Ocean(大西 ……

保护地球最大的资源——海洋We humans live on land. The ocean (海洋) is around us. It’s the largest resource (资源....Wonderful sea life 奇妙的海洋生物Lots of animals live in the ocean. The blue whale (蓝鲸) is the biggest ……

氧气The ocean is like Earth’s lungs (肺). It makes over half of the world’s oxygen2. Plants, algae (藻类), and some bacteria (细菌) in the ocean can make oxygen. Also, the ocean takes in 50 times ……

环绕我们的海洋
the underwater world together. Amazing sea plants and animals are waiting for us. If we look down on ourplanetfrom outer space, our planet is blue, because most of what we see is water.Did you know?1. 海洋的 ……

oceansThe ocean is home to the majority (大多数) of plants and animals on Earth. Marine (海洋的) plants... to the majority (大多数) of plants and animals on Earth. Marine (海洋的) plants provide us with 70 ……

.The Galapagos Islands are in the Pacific Ocean, 1,000 kilometers from the South American continent. They belong to the country of Ecuador (厄瓜多尔).The islands’ location, climate and ocean currents (洋流) are what ……

亚纳狮子鱼) can live at depths (深度) of 8,143 meters in the ocean.   4. Ocean plants make 70 percent of Earth’s oxygen (氧气). Many ocean plants live only near the surface (水面). Without roots ……

亚纳狮子鱼) can live at  depths (深度) of 8,143 meters in the ocean. 4. Ocean plants make 70 percent of Earth’s oxygen (氧气). Many ocean plants live only near the surface (水面). Without roots ……

.The Galapagos Islands are in the Pacific Ocean, 1,000 kilometers from the South American continent. They belong to the country of Ecuador (厄瓜多尔).The islands’ location, climate and ocean currents (洋流) are what ……