春鲁教版

一、杠杆平衡的条件 课前导入 学习目标 新知探究 随堂练习 本课小结 新知探究观察下面生活中常见的杠杆 动力臂大于阻力臂 动力臂等于阻力臂 动力臂小于阻力臂 二、杠杆的应用 课前导入 学习目标 新知探究 随堂练习 本课小结 新知探究思考与总结 （ 1） 省力杠杆 ：动力臂 大于 阻力臂，这种杠杆使用起来 省力 ； （ 2） 等臂杠杆 ：动力臂 等于 阻力臂，这种杠杆使用起来既 不省力也不费力 ；

Ask and answer questions about the TV shows in 2a. Use information that is true for you. 2d Roleplay the conversation. Grammar Focus Do you want to watch the news? Yes, I do. /No, I don’t. What do

的看法” , 有时等同于 think about. . What does he think of Beijing Opera? 他对京剧有什么看法。 My mother always thinks of everything! 我妈妈总是想到所有的东西。 . Mr. Black thinks highly of his son. 布莱克先生对他儿子评价甚高。 think about “考虑”

、根据汉语或首字母提示填写单词。 1. My daughter and son are _________ (学生 ) in No. 110 Middle School. 2. We don’t have classes on w_________. 3. I think someone in Class Nine _______ (找到 ) his shoes. 4. Her f_______

you going to hike to the top of the mountain。 你们要徒步登上山顶吗。 Language points How are you going to do that。 你打算怎么做。 be going to表示将要发生的动作 , 含有“计划 , 打算”的意思 , 后跟动词 原形。 常跟表将来的时间连用。 如 : next Sunday下星期天 , next

g to be when you grow up? B: I’m going to be …. A: What are you going to be when you grow up? B: I’m going to be a basketball player. A: How are you going to do that ? B: I’m going to practice

ing to 与 will 的区别： • ① 对未来事情的预测用“ will + 动词原形”表达， will 没有人称和数的变化，变否定句要在will 后面加 not, 也可用 will 后面加 not,或者缩略式 won’t, 变一般疑问句将 will 提至 句首。 Will planes be large in the future? Yes, they will. / No, they

ay the piano get good grades make the soccer team I’m going to practice really hard. (I’m going to go to a summer camp and play soccer every day there.) Pair works: What other resolutions can you

ow When He is going to be a teacher. He is going to move to Beijing. He is going to learn how to teach children. He is going to finish high school and college first. B: He is going to be a teacher. B

of milk shake water milk tea 喝 peel cut up put…into… pour..into… turn on drink Read the new words Step 1 Peel the bananas. How do you make a banana milk shake? Step 2 Cut up the bananas. Step 3 Put