Unit 2 Topic 3 Section D课件2023-2024学年仁爱科普版九年级英语上册

Unit 2 Saving the Earth Topic 3 Section D 学习目标 预习检测 知识梳理 课堂总结 学习 导航 重点探究 当堂检测 新课导入 Do you know how important the forest is? Let's talk! 能熟悉并正确运用本课时的重点单词和短语 1 2 能进一步巩固复合从句 3 能够谈论森林的重要性 学习目标 1.—Dad, why must I stop _____ computer games?  —For your health, my boy. A.play　　　B.to play　　C.to playing　　　　D.playing 2.Seeing their teacher ____ into the classroom, they stopped ___ at once.  A.walk; telling B.entering; to speak C.enter; to tell D.walking; talking 预习检测 D D 3.Remember _____ off the lights when you leave the room, please.  A.to turn　　 B.turning　　　 C.turn　　 D.turns 4.English is very important. You are supposed _____ it well. A.learns B.to learn C.learning D.learned 5.Trees are ______ to provide wood to build houses. A.cut up B.cut off C.cut down D.cut away A B C 知识梳理 Key points 1. They plant different types of trees so that birds and animals can live in the forests。 他们种植了不同种类的树，因此小鸟和动物们能够居住在 森林里。 so that 此处引导目的状语从句，意为“目的是，为的是”，可换成 in order that。 eg: They climbed higher so that they might see farther. 他们爬得更高，以便看得更远。 Key points 2. You have not started turning green yet! 你还没有开始成为绿色使者。 green 不单纯指“绿色”，也可借这种颜色用来指代保护环境的人。 eg: You are pale green. 你刚刚成为绿色卫士。 You are medium green. 你是中级绿色卫士。 You are bright green. 你优秀的绿色卫士。 Key points 3. Your are bright green,but do not stop trying. 你是个优秀的绿色使者，但是不要停止努力。 ①stop doing sth. 停止正在做的事； eg: When the teacher came in, the students stopped talking and laughing. 当老师走进来，学生们停止了说笑。 ②stop to do sth. 停下来（正在做的事）做另一件事； eg: He stopped to talk with her. 他停下来和她讲话。 复合句的归纳总结 Recycling can protect the environment, ______ it can save money, too. Some things we have done are good for the earth ______ some are bad. We should do everything to protect it, _____ we’ll be punished and lose our home. people produce power from coal, ______ it is very dirty and causes acid rain. Compound Sentence Grammar and while but or 探究一 Compound Sentence b