人教版高二英语Unit13 Reading 课件VIP免费

Reading Reading What is water made up of ? The molecule of water is made up of two hydrogen atoms and one oxygen atom. What properties or characteristics do What properties or characteristics do you know about water?you know about water?colorlesstastelesshaving no fixed shapethree formsfeeling wetkeeping level?absorbing heatpropertiespropertiespropertiesproperties The paper won’t fall off. Because the air pressure can hold the paper and the water won’t flow out. The paper won’t fall off. Because the air pressure can hold the paper and the water won’t flow out. The water and the oil won’t mix. The oil floats on the water. It is because the densities of them are different. Water has larger density and mass. The water and the oil won’t mix. The oil floats on the water. It is because the densities of them are different. Water has larger density and mass. The chalk will dissolve in the water. It is because water has the ability to dissolve the soluble ( 可溶解的 ) things and matters. The ice cube floats on both salt water and fresh water, but ice dissolves faster in salt water. Because ice has smaller density and it can float on the fresh water and salt can help dissolve. Pre-reading Predict what the text is about by reading only the title of each paragraph. What are ____________________? What do ____________________ look like?the properties of waterthe properties of water What are different parts of _________? What can _________ be compared to? How do _________ work? What are some examples of life _____ _____?the oceansthe oceansthe oceans in the ocean While-readingWhile-readingThe properties of waterThe properties of waterOcean MotionOcean MotionHeat CapacityHeat CapacitySalinitySalinityChemica...