上海版牛津初中英语7B《Water in the oceans》课件.ppt

,Water in the oceans,Oxford English 7B P15,land,water,riverslakesseas,（3/4）,land,（1/4）,streams_oceans,in every colour,every size,every shape,and,They are,.,sea animals and plants,a coral reef,Have you ever seen a coral reef?,starfish,sea horses,seaweed,Have you ever seen,or,The oceans give us wonderful plants and animals to enjoy.,They also give us food to eat,oil to burn,salt,sea water,drinkingwater,people get drinking water by taking away the salt from sea water.,take away,We must keep sea water clean and stop polluting it.,Thank you,