Unit 4 Friends Forever 重点单词和短语课件-2022-2023学年高中英语外研版（2019）必修第一册

Unit4 Vocabs and expressions in understanding ideas track v/n 1. 跟踪，追踪 vt track sb/sth 我们继续用雷达跟踪那架飞机。 we continued tracking the plane on our radar. 2. track sb/sth down 追踪到；追查到 警方至今未能追捕到攻击者 the police have so far failed to track down the attackers. 课文：How would you feel if moving to a new town meant losing track of your friends? lose track of 不了解...的情况/动态/失去联系 keep track of 跟踪...情况 /保持联系 银行账单有助于你了解钱的使用情况 Bank statements help you keep track of where your money is going. 两位朋友在战争中失去了联系 The two friends lost track of each other in the war 拓展： running track 跑道 on the right/wrong track 思路对头/不对头 stay/keep in touch with / keep track of 保持联系 lose touch with/ lose track of 失去联系 get in touch with 取得联系 我们大学毕业之后仍然着联系 we kept in touch with each other after we graduated from uni. Nowadays, we can move around the world and still stay in touch with the people that we want to remain friends with. advance n/v advance in sth 进展 [C] 多亏了技术的进步 Thanks to advances in technology in advance (of) 提前 如果提前订票，价格要便宜一些 If you book the tickets in advance，the price will be cheapter. advance V 1. move forward vi 部队在夜幕降临前向前推进了20英里。 The troop had advanced 20 miles by nightfall. 2. develop 这项研究提高了我们对语言学习的认识 The research has done much to advance our understanding of language learning. 拓展 advanced adj 高级的 先进的 intermediate adj 中级的 elementary adj 初级的 maintain v maintain sth 维持/保持 我们应该维护自然平衡 we should maintain the balance in nature 这两个国家一直保持着密切联系。 The two countries maintained close relations. 拓展： The house is large and difficult to maintain. 词转 maintainance n 维护 维护，保养 Social media tools let us see what our friends are up to and maintain friendship. enable v enable sb to do sth 这个新的项目能够让老年人有机会上大学 The new program enbales older people to study at college. 拓展 able adj 能够的，有能力的 be able to do disable v 使丧失能力 disabled adj 残疾的 disability n 残疾 The digital age also enables us to find people who share our interests... On social media sites, people tend to post only positive updates that make them appear hap