Unit 5 Lesson 30（课件） 2025-2026学年冀教版（2012）九年级英语全册

Lesson 30 Science Affects Us Have you ever done any interesting experiments? Can you describe one of them? Read the passage and write true (T)or false (F). 1.Brian,Danny and Jenny did an experiment at Jenny's home.(F) 2.Jenny and Wang Mei both think science is interesting.T) 3.Wang Mei thinks computers will change the world.F 4.Jenny enjoyed learning about DNA.F) Read the first e-mail and finish. 1.How does Jenny do the experiment? First,get a jar full of water and a piece of cardboard. cover the jar with the cardboard and_turn the jar over. Next,take your hand off 2.What can we discover from the experiment? The air pressure pushing_up on the cardboard is higher than that of the water pushing downfrom inside the jar. The higher air pressure outside the jar holds the cardboard in place Read the second e-mail and finish. Scienceffects people's everyday lives.Without the scientific developments (develop)of recent years,our lives would be very different.Can you imagine life without computers or mobile phones Scientific discoveries are making our lives better and better.DNA is really one of the most amazing things (thing)on the earth.Many people think it will change the world. Read the mind map and retell. how to do the experiment Jenny's experimentse the result of the experiment affect everyday lives Science effectse life will be different Science Affects Us e make lives better and better one ofthe most amazing things Something about DNA do many new things change the world l.I suggest you try it,too!我建议你也试一下！ suggestz动词，意为建议”。可接名词、动名词或that引导的 宾语从句。其名词为suggestion,为可数名词。 My father suggested going for a walk after dinner yesterday. 昨天我父亲建议晚饭后去散步。 I would like your suggestions.我想要你的建议。 2.The air pressure pushing up on the cardboard is higher than that of the water pushing down from inside the jar. 向上推纸板的气压要比罐子里向下推的水的气压高。 that用来替代前面提到的不可数名词或单数可数名词，以避免重复。 The price of rice is lower than that(the price)of meat. 米的价格比肉的价格低。 The weather here is much hotter than that in my city. 这里的天气比我们城市的天气热太多。 3.Scientific discoveries are making our lives better and better. 科学发现正在让我们的生活变得越来越好。 (1)discovery可数名词，意为“发现，发觉”，其复数形式为 discoveries。其动词为discover,后跟名词、代词或宾语从句。 This is an important discovery..这是一个重要的发现。 They have discovered our secrets. 他们已经发现了我们的秘密。