Unit 1 Topic 2 Section C课件2023-2024学年仁爱科普版九年级英语上册

Unit 1 The Changing World Topic 2 Section C 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 social worse supply so far paragraph opportunity percent offer newborn nature Word game The one who remembers the most words is the winner. 能熟悉并正确运用本课时的重点单词和短语 1 2 能学会谈论人口问题 学习目标 1. _____ of the students are boys in our school. A. Two third B. Two threes C. Two thirds D. Second three 2.Some measures has_____ solving the problem. A. been good at B. done well at C. worked well in D. taken care of 预习检测 C C 3. Edison is known _____ a great inventor. A. as B. for C. in D. on 4 ._____ your help, I made great progress in math. A. Thanks to B. Thanks for C. Thank to D. Thank for 5._____ large population, many problems began to appear. A.Because of B.Because C.So D.As A A A 知识梳理 Key points 分数词的表达法: 1. 结构: a)分子用基数词，分母用序数词。 1/3— one third(one-third) b)当分子大于1时，分母加复数。 3/4— three fourths (three-fourths) 2. 分数词的几种特殊形式： 　1/3—one third =  a third 1/4—one fourth = a quarter 　1/2—one second = a half 3/4—three fourths = three quarters Key points 分数用法注意： a) 分数作定语时，与所修饰的名词之间加of。 e.g. 我们班三分之二的学生是男生。 ____ _______ _____ the students in our class are boys. b) 分数后面可接可数名词， 也可接不可数名词，谓语动词的 单复数和分数词后的名词保持一致。 　　Two fifths of the milk ______(be) drunk by Tom. 　　One third of the students _______(be) girls. is are Two thirds of Key phrases because of 由于 less living space 更少的生存空间 at the same time 同时 supply sth. to sb.=supply sb. with sth. 提供某物给某人 provide sth. for sb.= provide sb. with sth. 提供某物给某人 offer sb. sth.=offer sth. to sb. 提供某物给某人 satisfy people’s daily needs 满足人们的日常需求 natural environment 自然环境 so far 到目前为止 Key phrases 10. take measures to do sth. 采取措施做某事 11. work well in doing st