九年级37班lesson 30 science affects us课件.ppt

Summary Five new words The usage of suggest 3. Four phrases: turn over,push up, push down,in place Homework Here are some inventions. How do they affect our everyday lives? Choose two of them and finish a small composition.For any of them, at least five sentences. TV camera radio computer telephone light tub clock washing machine compass telescope X-ray eyeglasses Maker：Miss Liu Lead-in 1. Have you ever done any interesting experiments? Can you describe one of them? 2. What would life be like without computers or mobile phones? Lesson 30 Science Affects Us Words affect suggest development mobile phone discovery Listening Listen to the first E-mail and fill in the blanks. First, get a jar _____ of water and a piece of cardboard. ______ the jar with the cardboard and turn the jar over. Next, take your hand ______. Can you guess what happens? The cardboard ______ the water in the jar! The air pressure pushing up on the cardboard is higher than that of the water _______ down from inside the jar. The higher air pressure outside the jar holds the cardboard ______ ______. full Cover off holds pushing in place Reading Read the second E-mail and fill in the blanks. Science affects peoples ________ lives. Without the scientific developments of recent years, our lives would be very different. Can you imagine life without computers or _______ _______? Scientific ________ are making our lives better and better. DNA is really one of the most amazing things on the earth. Many people think it will _______ the world. everyday mobile phones discoveries change Important and Difficult Points 1.I suggest you try it, too! 我建议你也试一试！ (解析)：suggest意为“建议，提议；暗示”。 当“建议，提议”讲时，后可接名词、代词、动名词作宾语；也可接that宾语从句，that从句用虚拟语气即should加动词原形，should可以省略。 例如：He suggested waiting a bit longer. = He suggested (our) waiting a bit longer. = He suggested that we (should) wa