Unit2 SectionA 单词讲解 课件 2022-2023学年人教版英语八年级下册

Unit2 SectionA 单词讲解 Unit2 I’ll clean up the city parks. 第一课时 单词讲解P9 1.clean up 打扫(或清除)干净 动副结构词。 动副结构词-宾语是名词时,可以放在中间,也可以放在后面。宾语是人称代词时,只能放中间。 They are cleaning up the house.= They are cleaning the house up. I’ll clean it up. clean-up n.打扫,清除 2.cheer v/n欢呼,喝彩-adj. cheerful 快乐的,愉快的 adv. cheerfully 高高兴兴地 When they saw us, they saw and cheered.当他们看见我们时,他们又挥手又欢呼。 (1)cheer up (使)变得高兴,振奋起来= make sb happier ①动副结构词 ②也可不跟宾语 我们可以去看望医院生病的孩子是他们高兴起来。 We could visit the _ in the hospital to _. 当我同意帮助他时,他立刻高兴起来。He _ at once when I _ help him. (2)cheer on 为……加油Would you like to come and cheer us on. 4.volunteer - adj. voluntary 自愿的,志愿的 (1)v. 义务做,自愿做 volunteer to do sth 自愿干某事 这个女孩可以志愿在课外学习活动小组教孩子。 The girl could volenteer to teach kids in an after-school study program. Jenny自愿帮助生病的人。_. (2) n.自愿者 Who’s the volunteer?谁自愿? 我们需要自愿者去打扫城市公园._. 5.come up with 想出,提出 同义词:think of 想出,想到 think out 想出 think up 想出,设计出 He came up with a good idea to solve the problem.他想出了一个解决问题的好主意。 6.put off 推迟,拖延 后面跟n、pron和V-ing形式 We can’t put off making a plan. 我们不能推迟制定计划了。 They put off the match because of the heavy rain. 因为大雨,他们推迟了比赛。 Never put off till tomorrow what you can do today.今天的事不要拖到明天去做。 7.sign n.标志,信号 symbol n.记号,象征 There is no sign of life here. 这里没有生命迹象。 traffic signs 交通标志 warning signs 警告标志,警报信号 road signs 路标 8.notice ①n.通知,通告,注意 The notice on the wall said “No smoking”. ②v.注意到,意识到,留心 notice sb do sth 注意到某人干过某事 notice sb doing sth 注意到某人正在干某事 Did you notice Jack come in?你注意到杰克进来了吗? Did you notice his hand shaking?你注意到他的手在抖吗? 9.call up 打电话给(某人);征召——动副结构 call sb up=call up sb=call sb=phone sb=ring (up) sb =make a telephone call to sb=telephone sb=give sb a call/ring Unit2 I’ll clean up the city parks. 第二课时 单词讲解P9 9. used to 曾经…,过去… 后面跟动词原型 be used to doing sth 习惯于干某事 I used to go be thin. 我过去很瘦。 注意句型转换,它是一个过去时句子,所以要借助助动词did。 He used to go shopping every moring. 否定词:He didn’t use to go shopping every moring. 一般疑问句:Did he use to go shopping every morning? 10. lonely adj.孤独的,寂寞的(主观感觉) alone adj.单独的,独自的