第19讲 选择性必修四Unit10 Connections词句文精讲精练-2023高三英语一轮复习精品课程（北师大2019）

Unit 10 CONNECTIONS 1． 核心词精讲： 1. …, in which he introduced the idea of friendship networks and his ideas influenced many of our early impressions of social networks. impression n. 印象，感想 【搭配】 under the impression 有……的印象，认为，以为 eg We were under the impression that they were brothers. 2. Once the parcel had been received by the person, he/ she would send the parcel onto a contact of theirs until the could be personally delivered to the correct person. 本句中once用作连词时，表示“一旦……就……”, 用于链 接时间状语从句，相当于as soon as。 eg They didn’t know how they would cope once the money had gone. deliver sth. to… 递送，传送，交付 eg Leaflets have been delivered to every household. 3. Amazingly, it only took between five and seven people to get the parcels delivered, and once released, the results were published in the bimonthly magazine Psychology Today. release vt. 公布，发表 E.g Last year the famous musician released five albums.   vt. 释放；放出；放走 Eg I released the horse and it ran away.