人教版英语八年级上册 Unit 7 知识点详解

Unit7 Will people have robots? Section A 1. People won’t ① use money. Everything will be② free. 一切都将免费的。 【解析1】use v.&n. 使用,用途→n. user使用者，用户→adj.useful有用的→adj. useless无用的  ⑴ v. use sth to do sth = use sth for doing sth 把某物用于做某事 ●We can use the lift to go up and down. 拓展：use up 用光 used to do sth 过去常常做某事 be used to do sth=be used for doing sth 被用来做某事（被动语态） be used to doing sth 习惯于做某事 ⑵ n.常与of 连用，发音为/ ju:s / makes（good/full/most) use of sth 充分使用某物 ●He always makes full use of time to study. It is no use doing sth. 做某事是没用的 【解析2】free adj.→freely adv. You may speak freely.  (1) adj.免费的 ●Children under five are free on buses. (2) adj.自由的 be free = have time (3) v. 释放; 使自由; 解放; 使摆脱 ●I need to go out，can you free me for an hour? 2. Books will only be① on computers , not on② paper. 书将只会在电脑上出现，而不是在纸上。 【解析1】on computers通过电脑 on 的用法： on +电器或媒介 on TV, on the radio, on the Internet, on the phone 都表示通过… 【解析2】paper n. ⑴ 纸张（不可数名词） a piece of paper 一张张 two pieces of paper 两张纸 ⑵ “