浙江省杭州市塘栖中学高中英语必修三：Unit4P2Reading教学课件.ppt

必修3 Before the class You are supposed to be engaged in the material and in whatever it is that we are discussing in class, not necessarily thinking about getting down every word that I say. I’d like you to take active notes rather than passive notes. Write down what can make you feel or learn something. Better attention, better understanding of the material if you are actively engaged. Better attention, better understanding of the material if you are actively engaged. You are supposed to be engaged in the material and in whatever it is that we are discussing in class, not necessarily thinking about getting down every word that I say. I’d like you to take active notes rather than passive notes. Write down what can make you feel or learn something. Unit 4 Reading HOW LIFE BEGAN ON THE EARTH Read the explanation and speak out the word it explains. sudden and powerful; using force to hurt or attack violent adj. 猛烈的；激烈的；强暴的 harmful adj. 有害的 atom n. 原子 exist vi. 存在；生存 causing harm the smallest unit of any chemical element globe n.地球；地球仪；球体 to be, or to be real; to live, or to live in difficult conditions the world; a map of the world in the shape of a ball, which is fixed to a support and can be turned round at the same angle as the Earth turns in space; any ball-shaped object theory n. 学说；理论 multiply vi. vt. 乘；增加 a formal statement of the rules on which a subject of study is based or of ideas which are suggested to explain a fact or event to increase very much in number, or (in mathematics) to add a number to itself a particular number of times pron. n. adj. 英万亿；美十亿 billion the number 1 000 000 000 with this result adv. 因此；于是 thus oxygen n. 氧 a colourless gas that forms a large part of the air on Earth and which is needed by people, animals and plants to live the mixture of gases around the Earth; a feeling that a place has of being pleasant and interesting or exciting atmosphere n. 大气层；气氛 unlike prep. 不同；不像 fundamental adj. 基本的；基础的 different from