高一英语学案Units 5-6 (B1)【知识网络】一、重点词汇与短语1. take off 的用法小结:(1) take off=become successful or popular suddenly 表示“突然急升,大受欢迎”的意思。例如: Sales of this kind of TV sets have taken off in recent weeks. 这款电视机的销售量最近几个星期上升非常快。 After this play, his career took off. (演出)这部戏以后,他的事业(一下子)腾飞了。(2)take off=(of plane) leave the ground and begin to fly:表示“(飞机)起飞”。例如: The plane took off despite of the heavy rain. 尽管天在下着大雨,飞机还是起飞了。(3)take off=remove 表示“脱去,移去”。例如: People will take their clothes off before having a shower. 洗澡前脱衣服。 Who took the handle off the door? 是谁把把手从门上拿走的?(注意:此句中的 off 为介词,以上句子中的 off 为副词。)(4)take off 还有“在(某期间)休息、减价”的意思。例如: I’d like to take a month off. 我想休一个月的假。 They are taking 50% off all goods in that shop. 那家商店的所有商品打五折。2.go: 作为系动词的用法:作为系动词 go 常常表示不好的变化。如 go mad/bad/blind/hungry/red/wrong 等等。例如: Fish goes bad easily in summer. 夏天鱼很容易变质。 After that terrible experience, he went mad. 那次可怕的经历以后,他疯掉了。He went red with anger because of what he saw there. 在那里看到的东西气得他脸都红了。 The machines that we bought yesterday went wrong. 我们昨天买的机器出故障了。拓展:(1)作为系动词,turn 也可以在后面接形容词做表语,但它经常表示“从某种状态向其对应的状态变化的自然现象”。例如: The weather has turned much warmer.用心 爱心 专心 天已经变得温暖多了。注意:turn 后面还可以接名词的原形作表语。例如: That poor boy turned writer twenty years later. 二十年后,那个穷孩子成为一名作家。(2)become 作为系动词使用时,强调变化过程的持续性。例如: Gradually the boy became silent. 那个男孩渐渐变得沉默寡言了。注意:become 后也可以接名词作表语,但它后...